(not at the head of any monitored branch or PR)
2026-04-13 14:35.09: New job: test uring.0.1 with dune-configurator.3.22.2, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29704/head (3e0c395e7b1393a792367f8edca3654dac71e6fd)
                              on debian-13-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29704/head" && git reset --hard 3e0c395e
git fetch origin master
git merge --no-edit 6a41074e987f45580dd8672b99e1d9355175a27f
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.14@sha256:ec5999d94ff5da2754b2d163583ef868ccaefbaaabbe66412fde8712ae6f5126
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn dune-configurator.3.22.2 3.22.2
RUN opam reinstall dune-configurator.3.22.2; \
    res=$?; \
    test "$res" != 31 && exit "$res"; \
    export OPAMCLI=2.0; \
    build_dir=$(opam var prefix)/.opam-switch/build; \
    failed=$(ls "$build_dir"); \
    partial_fails=""; \
    for pkg in $failed; do \
    if opam show -f x-ci-accept-failures: "$pkg" | grep -qF "\"debian-13\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'dune-configurator.3.22.2' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
RUN opam reinstall uring.0.1; \
    res=$?; \
    test "$res" != 31 && exit "$res"; \
    export OPAMCLI=2.0; \
    build_dir=$(opam var prefix)/.opam-switch/build; \
    failed=$(ls "$build_dir"); \
    partial_fails=""; \
    for pkg in $failed; do \
    if opam show -f x-ci-accept-failures: "$pkg" | grep -qF "\"debian-13\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'uring.0.1' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
RUN (opam reinstall --with-test uring.0.1) || true
RUN opam reinstall --with-test --verbose uring.0.1; \
    res=$?; \
    test "$res" != 31 && exit "$res"; \
    export OPAMCLI=2.0; \
    build_dir=$(opam var prefix)/.opam-switch/build; \
    failed=$(ls "$build_dir"); \
    partial_fails=""; \
    for pkg in $failed; do \
    if opam show -f x-ci-accept-failures: "$pkg" | grep -qF "\"debian-13\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'uring.0.1' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1

END-OF-DOCKERFILE
docker build -f ../Dockerfile .

2026-04-13 14:35.09: Using cache hint "ocaml/opam:debian-13-ocaml-4.14@sha256:ec5999d94ff5da2754b2d163583ef868ccaefbaaabbe66412fde8712ae6f5126-dune-configurator.3.22.2-uring.0.1-3e0c395e7b1393a792367f8edca3654dac71e6fd"
2026-04-13 14:35.09: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.14@sha256:ec5999d94ff5da2754b2d163583ef868ccaefbaaabbe66412fde8712ae6f5126)
 (user (uid 1000) (gid 1000))
 (workdir /home/opam)
 (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
 (run (network host)
      (shell "opam init --reinit --config .opamrc-sandbox -ni"))
 (run (shell "opam option solver=builtin-0install && opam config report"))
 (env OPAMDOWNLOADJOBS 1)
 (env OPAMERRLOGLEN 0)
 (env OPAMPRECISETRACKING 1)
 (env CI true)
 (env OPAM_REPO_CI true)
 (run (shell "rm -rf opam-repository/"))
 (copy (src .) (dst opam-repository/))
 (run (shell "opam repository set-url --strict default opam-repository/"))
 (run (network host)
      (shell "opam update --depexts || true"))
 (run (shell "opam pin add -k version -yn dune-configurator.3.22.2 3.22.2"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall dune-configurator.3.22.2;\
             \n        res=$?;\
             \n        test \"$res\" != 31 && exit \"$res\";\
             \n        export OPAMCLI=2.0;\
             \n        build_dir=$(opam var prefix)/.opam-switch/build;\
             \n        failed=$(ls \"$build_dir\");\
             \n        partial_fails=\"\";\
             \n        for pkg in $failed; do\
             \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-13\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'dune-configurator.3.22.2' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall uring.0.1;\
             \n        res=$?;\
             \n        test \"$res\" != 31 && exit \"$res\";\
             \n        export OPAMCLI=2.0;\
             \n        build_dir=$(opam var prefix)/.opam-switch/build;\
             \n        failed=$(ls \"$build_dir\");\
             \n        partial_fails=\"\";\
             \n        for pkg in $failed; do\
             \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-13\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'uring.0.1' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (run (network host)
      (shell "(opam reinstall --with-test uring.0.1) || true"))
 (run (shell  "opam reinstall --with-test --verbose uring.0.1;\
             \n        res=$?;\
             \n        test \"$res\" != 31 && exit \"$res\";\
             \n        export OPAMCLI=2.0;\
             \n        build_dir=$(opam var prefix)/.opam-switch/build;\
             \n        failed=$(ls \"$build_dir\");\
             \n        partial_fails=\"\";\
             \n        for pkg in $failed; do\
             \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-13\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'uring.0.1' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-04-13 14:35.09: Waiting for resource in pool OCluster
2026-04-13 14:42.39: Waiting for worker…
2026-04-13 14:45.13: Got resource from pool OCluster
Building on toxis.caelum.ci.dev
All commits already cached
Updating files:  97% (18187/18720)
Updating files:  98% (18346/18720)
Updating files:  99% (18533/18720)
Updating files: 100% (18720/18720)
Updating files: 100% (18720/18720), done.
HEAD is now at 6a41074e98 Merge pull request #29690 from paurkedal/caqti.2.3.0
Merge made by the 'ort' strategy.
 packages/chrome-trace/chrome-trace.3.22.2/opam     | 39 +++++++++++
 .../dune-action-plugin.3.22.2/opam                 | 52 +++++++++++++++
 .../dune-action-trace.3.22.2/opam                  | 39 +++++++++++
 .../dune-build-info/dune-build-info.3.22.2/opam    | 45 +++++++++++++
 .../dune-configurator.3.22.2/opam                  | 49 ++++++++++++++
 packages/dune-glob/dune-glob.3.22.2/opam           | 42 ++++++++++++
 .../dune-private-libs.3.22.2/opam                  | 50 +++++++++++++++
 packages/dune-rpc-lwt/dune-rpc-lwt.3.22.2/opam     | 41 ++++++++++++
 packages/dune-rpc/dune-rpc.3.22.2/opam             | 44 +++++++++++++
 packages/dune-site/dune-site.3.22.2/opam           | 37 +++++++++++
 packages/dune/dune.3.22.2/opam                     | 75 ++++++++++++++++++++++
 packages/dyn/dyn.3.22.2/opam                       | 40 ++++++++++++
 packages/fs-io/fs-io.3.22.2/opam                   | 39 +++++++++++
 packages/ocamlc-loc/ocamlc-loc.3.22.2/opam         | 43 +++++++++++++
 packages/ordering/ordering.3.22.2/opam             | 38 +++++++++++
 packages/stdune/stdune.3.22.2/opam                 | 46 +++++++++++++
 packages/top-closure/top-closure.3.22.2/opam       | 38 +++++++++++
 packages/xdg/xdg.3.22.2/opam                       | 39 +++++++++++
 18 files changed, 796 insertions(+)
 create mode 100644 packages/chrome-trace/chrome-trace.3.22.2/opam
 create mode 100644 packages/dune-action-plugin/dune-action-plugin.3.22.2/opam
 create mode 100644 packages/dune-action-trace/dune-action-trace.3.22.2/opam
 create mode 100644 packages/dune-build-info/dune-build-info.3.22.2/opam
 create mode 100644 packages/dune-configurator/dune-configurator.3.22.2/opam
 create mode 100644 packages/dune-glob/dune-glob.3.22.2/opam
 create mode 100644 packages/dune-private-libs/dune-private-libs.3.22.2/opam
 create mode 100644 packages/dune-rpc-lwt/dune-rpc-lwt.3.22.2/opam
 create mode 100644 packages/dune-rpc/dune-rpc.3.22.2/opam
 create mode 100644 packages/dune-site/dune-site.3.22.2/opam
 create mode 100644 packages/dune/dune.3.22.2/opam
 create mode 100644 packages/dyn/dyn.3.22.2/opam
 create mode 100644 packages/fs-io/fs-io.3.22.2/opam
 create mode 100644 packages/ocamlc-loc/ocamlc-loc.3.22.2/opam
 create mode 100644 packages/ordering/ordering.3.22.2/opam
 create mode 100644 packages/stdune/stdune.3.22.2/opam
 create mode 100644 packages/top-closure/top-closure.3.22.2/opam
 create mode 100644 packages/xdg/xdg.3.22.2/opam

(from ocaml/opam:debian-13-ocaml-4.14@sha256:ec5999d94ff5da2754b2d163583ef868ccaefbaaabbe66412fde8712ae6f5126)
Unable to find image 'ocaml/opam:debian-13-ocaml-4.14@sha256:ec5999d94ff5da2754b2d163583ef868ccaefbaaabbe66412fde8712ae6f5126' locally
docker.io/ocaml/opam@sha256:ec5999d94ff5da2754b2d163583ef868ccaefbaaabbe66412fde8712ae6f5126: Pulling from ocaml/opam
8f6ad858d0a4: Already exists
9cb5e198c8cf: Already exists
2d346d36dcf2: Already exists
cdc35e289b8d: Already exists
aeb7244bb580: Already exists
fc1943254a0d: Already exists
84238c416f8e: Already exists
fbbfe75d3112: Already exists
221fdc5d9929: Already exists
1fec9149b52a: Already exists
9c6e52557f24: Already exists
8737f5036aae: Already exists
d69c4074de14: Already exists
7237152a5f04: Already exists
fba4b414d8a0: Already exists
40d552afb3ef: Already exists
077cc17dc8e4: Already exists
077cc17dc8e4: Already exists
169e1be36a55: Already exists
0a8a005097ab: Already exists
caba3ec4b361: Already exists
6a364dc641f8: Already exists
4f4fb700ef54: Already exists
ab8052928cdc: Already exists
f5717a28dd6a: Already exists
79233a9b9bed: Already exists
d832d53e7392: Already exists
1872dad82243: Already exists
bfd849b08ba7: Already exists
834a8024ef15: Already exists
98ccec79258b: Already exists
fb48f36a0542: Already exists
3688b13db8e7: Already exists
a5c099f5f72c: Already exists
1ff1760de5b0: Already exists
98eec6764aa5: Already exists
aa22ae69debd: Already exists
12bfb7b962a2: Already exists
ec25ce9bb816: Already exists
beadd3cf7357: Already exists
d0d0c65a426d: Already exists
27080da82c6b: Pulling fs layer
3b99adeb504e: Pulling fs layer
27080da82c6b: Waiting
867c8a52ad10: Pulling fs layer
3b99adeb504e: Waiting
01ca275a6ca2: Pulling fs layer
867c8a52ad10: Waiting
01ca275a6ca2: Waiting
3b99adeb504e: Verifying Checksum
3b99adeb504e: Download complete
01ca275a6ca2: Download complete
27080da82c6b: Verifying Checksum
27080da82c6b: Download complete
27080da82c6b: Pull complete
3b99adeb504e: Pull complete
867c8a52ad10: Pull complete
01ca275a6ca2: Pull complete
Digest: sha256:ec5999d94ff5da2754b2d163583ef868ccaefbaaabbe66412fde8712ae6f5126
Status: Downloaded newer image for ocaml/opam@sha256:ec5999d94ff5da2754b2d163583ef868ccaefbaaabbe66412fde8712ae6f5126
2026-04-13 14:45.15 ---> using "d0e330c08fa445d83f06df86dbe749aac73c20b9c3be340824d01a143f189b82" from cache

/: (user (uid 1000) (gid 1000))

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-04-13 14:45.15 ---> using "3ec7ac935151f5277a236626f366bf7f6f18395cb01e6e86eff2abeffc750f69" from cache

/home/opam: (run (network host)
                 (shell "opam init --reinit --config .opamrc-sandbox -ni"))
Configuring from /home/opam/.opamrc-sandbox, then /home/opam/.opamrc, and finally from built-in defaults.
Checking for available remotes: rsync and local, git.
  - you won't be able to use mercurial repositories unless you install the hg command on your system.
  - you won't be able to use darcs repositories unless you install the darcs command on your system.

Continue? [Y/n] y
This version of opam requires an update to the layout of /home/opam/.opam from version 2.0 to version 2.2, which can't be reverted.
You may want to back it up before going further.

Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2026-04-13 14:45.15 ---> using "b5a0847c35501fd963cedc3388b00c999e5617a9db85df5529c240a6fc10a617" from cache

/home/opam: (run (shell "opam option solver=builtin-0install && opam config report"))
Set to 'builtin-0install' the field solver in global configuration
# opam config report
# opam-version         2.5.0
# self-upgrade         no
# system               arch=x86_64 os=linux os-distribution=debian os-version=13
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 71
# repositories         1 (version-controlled)
# pinned               1 (version)
# current-switch       4.14
# invariant            ["ocaml-base-compiler" {= "4.14.3"}]
# compiler-packages    ocaml-base-compiler.4.14.3, ocaml-options-vanilla.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/4.14/lib/ocaml/stublibs:/home/opam/.opam/4.14/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       4.14.3
2026-04-13 14:45.15 ---> using "28464b62e165a839b63b1c2ae024a4b4fcbe23c1802c3adf881d35db6bc1d4c2" from cache

/home/opam: (env OPAMDOWNLOADJOBS 1)

/home/opam: (env OPAMERRLOGLEN 0)

/home/opam: (env OPAMPRECISETRACKING 1)

/home/opam: (env CI true)

/home/opam: (env OPAM_REPO_CI true)

/home/opam: (run (shell "rm -rf opam-repository/"))
2026-04-13 14:45.15 ---> using "4dfd69403557bd9c8ecec7a8b2fdd9b50feea12943fd8b9150cd347ede8d5f38" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-04-13 14:45.16 ---> using "edfc1136fda934d7cb565de13b26830fecc90a7ab0b3857f616327ea2529452b" from cache

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-04-13 14:45.16 ---> using "b0e78c7a2e37b10ad9605e02581a51654b0778194c38cb8fb47cf5dccb0d651f" from cache

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Hit:1 http://deb.debian.org/debian trixie InRelease
- Get:2 http://deb.debian.org/debian trixie-updates InRelease [47.3 kB]
- Get:3 http://deb.debian.org/debian-security trixie-security InRelease [43.4 kB]
- Get:4 http://deb.debian.org/debian-security trixie-security/main amd64 Packages [122 kB]
- Fetched 213 kB in 1s (215 kB/s)
- Reading package lists...
- 
2026-04-13 14:45.16 ---> using "044cfe461c26a47734ddd2294ed3e29edb1a69aa3837f8ab53eee87e4aaa3c6d" from cache

/home/opam: (run (shell "opam pin add -k version -yn dune-configurator.3.22.2 3.22.2"))
dune-configurator is now pinned to version 3.22.2
2026-04-13 14:45.16 ---> using "61822bc1c8d49457997d2abe2ac73ae0cfef8dbd04765bc8f20f4e4cd5cb318e" from cache

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall dune-configurator.3.22.2;\
                        \n        res=$?;\
                        \n        test \"$res\" != 31 && exit \"$res\";\
                        \n        export OPAMCLI=2.0;\
                        \n        build_dir=$(opam var prefix)/.opam-switch/build;\
                        \n        failed=$(ls \"$build_dir\");\
                        \n        partial_fails=\"\";\
                        \n        for pkg in $failed; do\
                        \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-13\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'dune-configurator.3.22.2' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
dune-configurator.3.22.2 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 3 packages
  - install csexp             1.5.2           [required by dune-configurator]
  - install dune              3.22.2          [required by dune-configurator]
  - install dune-configurator 3.22.2 (pinned)

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved csexp.1.5.2  (cached)
-> retrieved dune.3.22.2, dune-configurator.3.22.2  (cached)
-> installed dune.3.22.2
-> installed csexp.1.5.2
-> installed dune-configurator.3.22.2
Done.
# To update the current shell environment, run: eval $(opam env)
2026-04-13 14:45.16 ---> using "de48ccc1a675ccb5bfaa4b65349d55fd7f562d3cece499473dd0a7edc9c09dd2" from cache

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall uring.0.1;\
                        \n        res=$?;\
                        \n        test \"$res\" != 31 && exit \"$res\";\
                        \n        export OPAMCLI=2.0;\
                        \n        build_dir=$(opam var prefix)/.opam-switch/build;\
                        \n        failed=$(ls \"$build_dir\");\
                        \n        partial_fails=\"\";\
                        \n        for pkg in $failed; do\
                        \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-13\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'uring.0.1' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
uring.0.1 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 9 packages
  - install bigstringaf 0.10.0 [required by uring]
  - install cmdliner    2.1.0  [required by uring]
  - install cstruct     6.2.0  [required by uring]
  - install fmt         0.11.0 [required by uring]
  - install ocamlbuild  0.16.1 [required by fmt]
  - install ocamlfind   1.9.8  [required by fmt]
  - install optint      0.3.0  [required by uring]
  - install topkg       1.1.1  [required by fmt]
  - install uring       0.1

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved bigstringaf.0.10.0  (cached)
-> retrieved cmdliner.2.1.0  (cached)
-> retrieved cstruct.6.2.0  (cached)
-> retrieved fmt.0.11.0  (cached)
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved optint.0.3.0  (cached)
-> retrieved topkg.1.1.1  (cached)
-> retrieved uring.0.1  (cached)
-> installed bigstringaf.0.10.0
-> installed optint.0.3.0
-> installed ocamlfind.1.9.8
-> installed cmdliner.2.1.0
-> installed ocamlbuild.0.16.1
-> installed topkg.1.1.1
-> installed fmt.0.11.0
-> installed cstruct.6.2.0
-> installed uring.0.1
Done.
# To update the current shell environment, run: eval $(opam env)
2026-04-13 14:45.38 ---> saved as "9038ef3382aab9d4e111c2204182f689542a70f7d5400747716b25b613f6d080"

/home/opam: (run (network host)
                 (shell "(opam reinstall --with-test uring.0.1) || true"))
The following actions will be performed:
=== recompile 1 package
  - recompile uring              0.1
=== install 17 packages
  - install   alcotest           1.9.1  [required by uring]
  - install   astring            0.8.5  [required by alcotest, bos]
  - install   base-bytes         base   [required by ocplib-endian]
  - install   bechamel           0.5.0  [required by uring]
  - install   bechamel-notty     0.5.0  [required by uring]
  - install   bos                0.2.1  [required by uring]
  - install   cppo               1.8.0  [required by notty]
  - install   fpath              0.7.3  [required by bos]
  - install   logs               0.10.0 [required by uring]
  - install   lwt                6.1.1  [required by uring]
  - install   notty              0.2.3  [required by uring]
  - install   ocaml-syntax-shims 1.0.0  [required by alcotest]
  - install   ocplib-endian      1.2    [required by lwt]
  - install   re                 1.14.0 [required by alcotest]
  - install   rresult            0.7.0  [required by bos]
  - install   stdlib-shims       0.3.0  [required by alcotest]
  - install   uutf               1.0.4  [required by alcotest]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved alcotest.1.9.1  (https://opam.ocaml.org/cache)
-> retrieved astring.0.8.5  (https://opam.ocaml.org/cache)
-> installed base-bytes.base
-> retrieved bechamel.0.5.0, bechamel-notty.0.5.0  (https://opam.ocaml.org/cache)
-> retrieved bos.0.2.1  (https://opam.ocaml.org/cache)
-> installed bechamel.0.5.0
-> retrieved cppo.1.8.0  (https://opam.ocaml.org/cache)
-> retrieved fpath.0.7.3  (https://opam.ocaml.org/cache)
-> retrieved logs.0.10.0  (https://opam.ocaml.org/cache)
-> retrieved lwt.6.1.1  (https://opam.ocaml.org/cache)
-> retrieved notty.0.2.3  (https://opam.ocaml.org/cache)
-> retrieved ocaml-syntax-shims.1.0.0  (https://opam.ocaml.org/cache)
-> retrieved ocplib-endian.1.2  (https://opam.ocaml.org/cache)
-> installed astring.0.8.5
-> retrieved re.1.14.0  (https://opam.ocaml.org/cache)
-> retrieved rresult.0.7.0  (https://opam.ocaml.org/cache)
-> retrieved stdlib-shims.0.3.0  (https://opam.ocaml.org/cache)
-> retrieved uring.0.1  (https://opam.ocaml.org/cache)
-> installed stdlib-shims.0.3.0
-> installed cppo.1.8.0
-> retrieved uutf.1.0.4  (https://opam.ocaml.org/cache)
-> installed rresult.0.7.0
-> installed fpath.0.7.3
-> installed ocplib-endian.1.2
-> installed ocaml-syntax-shims.1.0.0
-> installed re.1.14.0
-> removed   uring.0.1
-> installed uutf.1.0.4
-> installed alcotest.1.9.1
-> installed lwt.6.1.1
-> installed logs.0.10.0
-> installed notty.0.2.3
-> installed bechamel-notty.0.5.0
-> installed bos.0.2.1
[ERROR] The compilation of uring.0.1 failed at "dune build -p uring -j 71 @install @runtest".

#=== ERROR while compiling uring.0.1 ==========================================#
# context              2.5.0 | linux/x86_64 | ocaml-base-compiler.4.14.3 | file:///home/opam/opam-repository
# path                 ~/.opam/4.14/.opam-switch/build/uring.0.1
# command              ~/.opam/opam-init/hooks/sandbox.sh build dune build -p uring -j 71 @install @runtest
# exit-code            1
# env-file             ~/.opam/log/uring-7-fa9352.env
# output-file          ~/.opam/log/uring-7-fa9352.out
### output ###
# (cd _build/default/vendor/liburing && ./configure)
# prefix                        /usr
# includedir                    /usr/include
# libdir                        /usr/lib
# libdevdir                     /usr/lib
# relativelibdir                
# mandir                        /usr/man
# datadir                       /usr/share
# __kernel_rwf_t                yes
# __kernel_timespec             yes
# open_how                      no
# statx                         yes
# C++                           yes
# has_ucontext                  yes
# CC                            gcc
# CXX                           g++
# (cd _build/default/vendor/liburing && /usr/bin/make -j -C src)
# make: Entering directory '/home/opam/.opam/4.14/.opam-switch/build/uring.0.1/_build/default/vendor/liburing/src'
#      CC setup.ol
#      CC queue.ol
#      CC syscall.ol
#      CC register.ol
#      CC setup.os
#      CC queue.os
#      CC syscall.os
#      CC register.os
#      AR liburing.a
#  RANLIB liburing.a
#      CC liburing.so.2.0.0
# make: Leaving directory '/home/opam/.opam/4.14/.opam-switch/build/uring.0.1/_build/default/vendor/liburing/src'
# ar: creating liburing.a
# (cd _build/default/tests && ./poll_add.exe)
# submitted 1
# poll_add: 1
# File "tests/dune", line 2, characters 7-11:
# 2 |  (name main)
#            ^^^^
# (cd _build/default/tests && ./main.exe)
# Testing `tests/main.ml'.
# This run has ID `VMIAE7SF'.
# 
#   [OK]          heap           0   normal_usage.
#   [OK]          heap           1   double_free.
#   [OK]          heap           2   out_of_space.
#   [OK]          uring          0   invalid_queue_depth.
#   [OK]          uring          1   noop.
#   [OK]          uring          2   open.
#   [OK]          uring          3   create.
#   [OK]          uring          4   resolve.
#   [OK]          uring          5   read.
#   [OK]          uring          6   readv.
#   [OK]          uring          7   readv2.
#   [FAIL]        uring          8   region.
#   [FAIL]        uring          9   cancel.
#   [FAIL]        uring         10   cancel_late.
#   [FAIL]        uring         11   cancel_invalid.
#   [FAIL]        uring         12   free_busy.
# 
# ┌──────────────────────────────────────────────────────────────────────────────┐
# │ [FAIL]        uring          8   region.                                     │
# └──────────────────────────────────────────────────────────────────────────────┘
# [exception] Unix.Unix_error(Unix.ENOMEM, "io_uring_register_buffers", "")
#             Raised by primitive operation at Uring.create in file "lib/uring/uring.ml", line 224, characters 2-43
#             Called from Dune__exe__Main.with_uring in file "tests/main.ml", line 127, characters 10-53
#             Called from Dune__exe__Main.test_region.(fun) in file "tests/main.ml", line 276, characters 2-224
#             Called from Dune__exe__Main.Test_data.with_fd in file "tests/main.ml", line 112, characters 12-16
#             Called from Dune__exe__Main.with_uring in file "tests/main.ml", line 128, characters 2-6
#             Called from Dune__exe__Main.tc.(fun) in file "tests/main.ml", line 365, characters 60-64
#             Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
#             Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35
#             
# Logs saved to `~/.opam/4.14/.opam-switch/build/uring.0.1/_build/default/tests/_build/_tests/tests-main.ml/uring.008.output'.
#  ──────────────────────────────────────────────────────────────────────────────
# 
# 
# ┌──────────────────────────────────────────────────────────────────────────────┐
# │ [FAIL]        uring          9   cancel.                                     │
# └──────────────────────────────────────────────────────────────────────────────┘
# [exception] Unix.Unix_error(Unix.ENOMEM, "io_uring_register_buffers", "")
#             Raised by primitive operation at Uring.create in file "lib/uring/uring.ml", line 224, characters 2-43
#             Called from Dune__exe__Main.with_uring in file "tests/main.ml", line 127, characters 10-53
#             Called from Dune__exe__Main.tc.(fun) in file "tests/main.ml", line 365, characters 60-64
#             Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
#             Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35
#             
# Logs saved to `~/.opam/4.14/.opam-switch/build/uring.0.1/_build/default/tests/_build/_tests/tests-main.ml/uring.009.output'.
#  ──────────────────────────────────────────────────────────────────────────────
# 
# 
# ┌──────────────────────────────────────────────────────────────────────────────┐
# │ [FAIL]        uring         10   cancel_late.                                │
# └──────────────────────────────────────────────────────────────────────────────┘
# [exception] Unix.Unix_error(Unix.ENOMEM, "io_uring_register_buffers", "")
#             Raised by primitive operation at Uring.create in file "lib/uring/uring.ml", line 224, characters 2-43
#             Called from Dune__exe__Main.with_uring in file "tests/main.ml", line 127, characters 10-53
#             Called from Dune__exe__Main.tc.(fun) in file "tests/main.ml", line 365, characters 60-64
#             Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
#             Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35
#             
# Logs saved to `~/.opam/4.14/.opam-switch/build/uring.0.1/_build/default/tests/_build/_tests/tests-main.ml/uring.010.output'.
#  ──────────────────────────────────────────────────────────────────────────────
# 
# 
# ┌──────────────────────────────────────────────────────────────────────────────┐
# │ [FAIL]        uring         11   cancel_invalid.                             │
# └──────────────────────────────────────────────────────────────────────────────┘
# [exception] Unix.Unix_error(Unix.ENOMEM, "io_uring_register_buffers", "")
#             Raised by primitive operation at Uring.create in file "lib/uring/uring.ml", line 224, characters 2-43
#             Called from Dune__exe__Main.with_uring in file "tests/main.ml", line 127, characters 10-53
#             Called from Dune__exe__Main.tc.(fun) in file "tests/main.ml", line 365, characters 60-64
#             Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
#             Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35
#             
# Logs saved to `~/.opam/4.14/.opam-switch/build/uring.0.1/_build/default/tests/_build/_tests/tests-main.ml/uring.011.output'.
#  ──────────────────────────────────────────────────────────────────────────────
# 
# 
# ┌──────────────────────────────────────────────────────────────────────────────┐
# │ [FAIL]        uring         12   free_busy.                                  │
# └──────────────────────────────────────────────────────────────────────────────┘
# [exception] Unix.Unix_error(Unix.ENOMEM, "io_uring_register_buffers", "")
#             Raised by primitive operation at Uring.create in file "lib/uring/uring.ml", line 224, characters 2-43
#             Called from Dune__exe__Main.test_free_busy in file "tests/main.ml", line 348, characters 10-40
#             Called from Dune__exe__Main.tc.(fun) in file "tests/main.ml", line 365, characters 60-64
#             Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
#             Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35
#             
# Logs saved to `~/.opam/4.14/.opam-switch/build/uring.0.1/_build/default/tests/_build/_tests/tests-main.ml/uring.012.output'.
#  ──────────────────────────────────────────────────────────────────────────────
# 
# Full test results in `~/.opam/4.14/.opam-switch/build/uring.0.1/_build/default/tests/_build/_tests/tests-main.ml'.
# 5 failures! in 0.036s. 16 tests run.



<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - build uring 0.1
+- 
+- The following changes have been performed
| - remove  uring              0.1
| - install alcotest           1.9.1
| - install astring            0.8.5
| - install base-bytes         base
| - install bechamel           0.5.0
| - install bechamel-notty     0.5.0
| - install bos                0.2.1
| - install cppo               1.8.0
| - install fpath              0.7.3
| - install logs               0.10.0
| - install lwt                6.1.1
| - install notty              0.2.3
| - install ocaml-syntax-shims 1.0.0
| - install ocplib-endian      1.2
| - install re                 1.14.0
| - install rresult            0.7.0
| - install stdlib-shims       0.3.0
| - install uutf               1.0.4
+- 
# To update the current shell environment, run: eval $(opam env)

The former state can be restored with:
    /usr/bin/opam switch import "/home/opam/.opam/4.14/.opam-switch/backup/state-20260413144539.export"
Or you can retry to install your package selection with:
    /usr/bin/opam install --restore
2026-04-13 14:46.04 ---> saved as "51953388c8a0b5ae72aae64aa9aa709818aeeada8727e4291a0aea60c6e272dc"

/home/opam: (run (shell  "opam reinstall --with-test --verbose uring.0.1;\
                        \n        res=$?;\
                        \n        test \"$res\" != 31 && exit \"$res\";\
                        \n        export OPAMCLI=2.0;\
                        \n        build_dir=$(opam var prefix)/.opam-switch/build;\
                        \n        failed=$(ls \"$build_dir\");\
                        \n        partial_fails=\"\";\
                        \n        for pkg in $failed; do\
                        \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-13\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'uring.0.1' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
uring.0.1 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 1 package
  - install uring 0.1

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Processing  1/3: [uring.0.1: extract]
-> retrieved uring.0.1  (cached)
Processing  2/3: [uring: dune build]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "dune" "build" "-p" "uring" "-j" "71" "@install" "@runtest" (CWD=/home/opam/.opam/4.14/.opam-switch/build/uring.0.1)
- (cd _build/default/vendor/liburing && ./configure)
- prefix                        /usr
- includedir                    /usr/include
- libdir                        /usr/lib
- libdevdir                     /usr/lib
- relativelibdir                
- mandir                        /usr/man
- datadir                       /usr/share
- __kernel_rwf_t                yes
- __kernel_timespec             yes
- open_how                      no
- statx                         yes
- C++                           yes
- has_ucontext                  yes
- CC                            gcc
- CXX                           g++
- (cd _build/default/vendor/liburing && /usr/bin/make -j -C src)
- make: Entering directory '/home/opam/.opam/4.14/.opam-switch/build/uring.0.1/_build/default/vendor/liburing/src'
-      CC setup.ol
-      CC queue.ol
-      CC syscall.ol
-      CC register.ol
-      CC setup.os
-      CC queue.os
-      CC syscall.os
-      CC register.os
-      CC liburing.so.2.0.0
-      AR liburing.a
-  RANLIB liburing.a
- make: Leaving directory '/home/opam/.opam/4.14/.opam-switch/build/uring.0.1/_build/default/vendor/liburing/src'
- ar: creating liburing.a
- (cd _build/default/tests && ./poll_add.exe)
- submitted 1
- poll_add: 1
- File "tests/dune", line 2, characters 7-11:
- 2 |  (name main)
-            ^^^^
- (cd _build/default/tests && ./main.exe)
- Testing `tests/main.ml'.
- This run has ID `MALTD2NY'.
- 
-   [OK]          heap           0   normal_usage.
-   [OK]          heap           1   double_free.
-   [OK]          heap           2   out_of_space.
-   [OK]          uring          0   invalid_queue_depth.
-   [OK]          uring          1   noop.
-   [OK]          uring          2   open.
-   [OK]          uring          3   create.
-   [OK]          uring          4   resolve.
-   [OK]          uring          5   read.
-   [OK]          uring          6   readv.
-   [OK]          uring          7   readv2.
-   [FAIL]        uring          8   region.
-   [FAIL]        uring          9   cancel.
-   [FAIL]        uring         10   cancel_late.
-   [FAIL]        uring         11   cancel_invalid.
-   [FAIL]        uring         12   free_busy.
- 
- ┌──────────────────────────────────────────────────────────────────────────────┐
- │ [FAIL]        uring          8   region.                                     │
- └──────────────────────────────────────────────────────────────────────────────┘
- [exception] Unix.Unix_error(Unix.ENOMEM, "io_uring_register_buffers", "")
-             Raised by primitive operation at Uring.create in file "lib/uring/uring.ml", line 224, characters 2-43
-             Called from Dune__exe__Main.with_uring in file "tests/main.ml", line 127, characters 10-53
-             Called from Dune__exe__Main.test_region.(fun) in file "tests/main.ml", line 276, characters 2-224
-             Called from Dune__exe__Main.Test_data.with_fd in file "tests/main.ml", line 112, characters 12-16
-             Called from Dune__exe__Main.with_uring in file "tests/main.ml", line 128, characters 2-6
-             Called from Dune__exe__Main.tc.(fun) in file "tests/main.ml", line 365, characters 60-64
-             Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
-             Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35
-             
- Logs saved to `~/.opam/4.14/.opam-switch/build/uring.0.1/_build/default/tests/_build/_tests/tests-main.ml/uring.008.output'.
-  ──────────────────────────────────────────────────────────────────────────────
- 
- 
- ┌──────────────────────────────────────────────────────────────────────────────┐
- │ [FAIL]        uring          9   cancel.                                     │
- └──────────────────────────────────────────────────────────────────────────────┘
- [exception] Unix.Unix_error(Unix.ENOMEM, "io_uring_register_buffers", "")
-             Raised by primitive operation at Uring.create in file "lib/uring/uring.ml", line 224, characters 2-43
-             Called from Dune__exe__Main.with_uring in file "tests/main.ml", line 127, characters 10-53
-             Called from Dune__exe__Main.tc.(fun) in file "tests/main.ml", line 365, characters 60-64
-             Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
-             Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35
-             
- Logs saved to `~/.opam/4.14/.opam-switch/build/uring.0.1/_build/default/tests/_build/_tests/tests-main.ml/uring.009.output'.
-  ──────────────────────────────────────────────────────────────────────────────
- 
- 
- ┌──────────────────────────────────────────────────────────────────────────────┐
- │ [FAIL]        uring         10   cancel_late.                                │
- └──────────────────────────────────────────────────────────────────────────────┘
- [exception] Unix.Unix_error(Unix.ENOMEM, "io_uring_register_buffers", "")
-             Raised by primitive operation at Uring.create in file "lib/uring/uring.ml", line 224, characters 2-43
-             Called from Dune__exe__Main.with_uring in file "tests/main.ml", line 127, characters 10-53
-             Called from Dune__exe__Main.tc.(fun) in file "tests/main.ml", line 365, characters 60-64
-             Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
-             Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35
-             
- Logs saved to `~/.opam/4.14/.opam-switch/build/uring.0.1/_build/default/tests/_build/_tests/tests-main.ml/uring.010.output'.
-  ──────────────────────────────────────────────────────────────────────────────
- 
- 
- ┌──────────────────────────────────────────────────────────────────────────────┐
- │ [FAIL]        uring         11   cancel_invalid.                             │
- └──────────────────────────────────────────────────────────────────────────────┘
- [exception] Unix.Unix_error(Unix.ENOMEM, "io_uring_register_buffers", "")
-             Raised by primitive operation at Uring.create in file "lib/uring/uring.ml", line 224, characters 2-43
-             Called from Dune__exe__Main.with_uring in file "tests/main.ml", line 127, characters 10-53
-             Called from Dune__exe__Main.tc.(fun) in file "tests/main.ml", line 365, characters 60-64
-             Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
-             Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35
-             
- Logs saved to `~/.opam/4.14/.opam-switch/build/uring.0.1/_build/default/tests/_build/_tests/tests-main.ml/uring.011.output'.
-  ──────────────────────────────────────────────────────────────────────────────
- 
- 
- ┌──────────────────────────────────────────────────────────────────────────────┐
- │ [FAIL]        uring         12   free_busy.                                  │
- └──────────────────────────────────────────────────────────────────────────────┘
- [exception] Unix.Unix_error(Unix.ENOMEM, "io_uring_register_buffers", "")
-             Raised by primitive operation at Uring.create in file "lib/uring/uring.ml", line 224, characters 2-43
-             Called from Dune__exe__Main.test_free_busy in file "tests/main.ml", line 348, characters 10-40
-             Called from Dune__exe__Main.tc.(fun) in file "tests/main.ml", line 365, characters 60-64
-             Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
-             Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35
-             
- Logs saved to `~/.opam/4.14/.opam-switch/build/uring.0.1/_build/default/tests/_build/_tests/tests-main.ml/uring.012.output'.
-  ──────────────────────────────────────────────────────────────────────────────
- 
- Full test results in `~/.opam/4.14/.opam-switch/build/uring.0.1/_build/default/tests/_build/_tests/tests-main.ml'.
- 5 failures! in 0.038s. 16 tests run.
[ERROR] The compilation of uring.0.1 failed at "dune build -p uring -j 71 @install @runtest".

#=== ERROR while compiling uring.0.1 ==========================================#
# context              2.5.0 | linux/x86_64 | ocaml-base-compiler.4.14.3 | file:///home/opam/opam-repository
# path                 ~/.opam/4.14/.opam-switch/build/uring.0.1
# command              ~/.opam/opam-init/hooks/sandbox.sh build dune build -p uring -j 71 @install @runtest
# exit-code            1
# env-file             ~/.opam/log/uring-7-0c2897.env
# output-file          ~/.opam/log/uring-7-0c2897.out
### output ###
# (cd _build/default/vendor/liburing && ./configure)
# prefix                        /usr
# includedir                    /usr/include
# libdir                        /usr/lib
# libdevdir                     /usr/lib
# relativelibdir                
# mandir                        /usr/man
# datadir                       /usr/share
# __kernel_rwf_t                yes
# __kernel_timespec             yes
# open_how                      no
# statx                         yes
# C++                           yes
# has_ucontext                  yes
# CC                            gcc
# CXX                           g++
# (cd _build/default/vendor/liburing && /usr/bin/make -j -C src)
# make: Entering directory '/home/opam/.opam/4.14/.opam-switch/build/uring.0.1/_build/default/vendor/liburing/src'
#      CC setup.ol
#      CC queue.ol
#      CC syscall.ol
#      CC register.ol
#      CC setup.os
#      CC queue.os
#      CC syscall.os
#      CC register.os
#      CC liburing.so.2.0.0
#      AR liburing.a
#  RANLIB liburing.a
# make: Leaving directory '/home/opam/.opam/4.14/.opam-switch/build/uring.0.1/_build/default/vendor/liburing/src'
# ar: creating liburing.a
# (cd _build/default/tests && ./poll_add.exe)
# submitted 1
# poll_add: 1
# File "tests/dune", line 2, characters 7-11:
# 2 |  (name main)
#            ^^^^
# (cd _build/default/tests && ./main.exe)
# Testing `tests/main.ml'.
# This run has ID `MALTD2NY'.
# 
#   [OK]          heap           0   normal_usage.
#   [OK]          heap           1   double_free.
#   [OK]          heap           2   out_of_space.
#   [OK]          uring          0   invalid_queue_depth.
#   [OK]          uring          1   noop.
#   [OK]          uring          2   open.
#   [OK]          uring          3   create.
#   [OK]          uring          4   resolve.
#   [OK]          uring          5   read.
#   [OK]          uring          6   readv.
#   [OK]          uring          7   readv2.
#   [FAIL]        uring          8   region.
#   [FAIL]        uring          9   cancel.
#   [FAIL]        uring         10   cancel_late.
#   [FAIL]        uring         11   cancel_invalid.
#   [FAIL]        uring         12   free_busy.
# 
# ┌──────────────────────────────────────────────────────────────────────────────┐
# │ [FAIL]        uring          8   region.                                     │
# └──────────────────────────────────────────────────────────────────────────────┘
# [exception] Unix.Unix_error(Unix.ENOMEM, "io_uring_register_buffers", "")
#             Raised by primitive operation at Uring.create in file "lib/uring/uring.ml", line 224, characters 2-43
#             Called from Dune__exe__Main.with_uring in file "tests/main.ml", line 127, characters 10-53
#             Called from Dune__exe__Main.test_region.(fun) in file "tests/main.ml", line 276, characters 2-224
#             Called from Dune__exe__Main.Test_data.with_fd in file "tests/main.ml", line 112, characters 12-16
#             Called from Dune__exe__Main.with_uring in file "tests/main.ml", line 128, characters 2-6
#             Called from Dune__exe__Main.tc.(fun) in file "tests/main.ml", line 365, characters 60-64
#             Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
#             Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35
#             
# Logs saved to `~/.opam/4.14/.opam-switch/build/uring.0.1/_build/default/tests/_build/_tests/tests-main.ml/uring.008.output'.
#  ──────────────────────────────────────────────────────────────────────────────
# 
# 
# ┌──────────────────────────────────────────────────────────────────────────────┐
# │ [FAIL]        uring          9   cancel.                                     │
# └──────────────────────────────────────────────────────────────────────────────┘
# [exception] Unix.Unix_error(Unix.ENOMEM, "io_uring_register_buffers", "")
#             Raised by primitive operation at Uring.create in file "lib/uring/uring.ml", line 224, characters 2-43
#             Called from Dune__exe__Main.with_uring in file "tests/main.ml", line 127, characters 10-53
#             Called from Dune__exe__Main.tc.(fun) in file "tests/main.ml", line 365, characters 60-64
#             Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
#             Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35
#             
# Logs saved to `~/.opam/4.14/.opam-switch/build/uring.0.1/_build/default/tests/_build/_tests/tests-main.ml/uring.009.output'.
#  ──────────────────────────────────────────────────────────────────────────────
# 
# 
# ┌──────────────────────────────────────────────────────────────────────────────┐
# │ [FAIL]        uring         10   cancel_late.                                │
# └──────────────────────────────────────────────────────────────────────────────┘
# [exception] Unix.Unix_error(Unix.ENOMEM, "io_uring_register_buffers", "")
#             Raised by primitive operation at Uring.create in file "lib/uring/uring.ml", line 224, characters 2-43
#             Called from Dune__exe__Main.with_uring in file "tests/main.ml", line 127, characters 10-53
#             Called from Dune__exe__Main.tc.(fun) in file "tests/main.ml", line 365, characters 60-64
#             Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
#             Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35
#             
# Logs saved to `~/.opam/4.14/.opam-switch/build/uring.0.1/_build/default/tests/_build/_tests/tests-main.ml/uring.010.output'.
#  ──────────────────────────────────────────────────────────────────────────────
# 
# 
# ┌──────────────────────────────────────────────────────────────────────────────┐
# │ [FAIL]        uring         11   cancel_invalid.                             │
# └──────────────────────────────────────────────────────────────────────────────┘
# [exception] Unix.Unix_error(Unix.ENOMEM, "io_uring_register_buffers", "")
#             Raised by primitive operation at Uring.create in file "lib/uring/uring.ml", line 224, characters 2-43
#             Called from Dune__exe__Main.with_uring in file "tests/main.ml", line 127, characters 10-53
#             Called from Dune__exe__Main.tc.(fun) in file "tests/main.ml", line 365, characters 60-64
#             Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
#             Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35
#             
# Logs saved to `~/.opam/4.14/.opam-switch/build/uring.0.1/_build/default/tests/_build/_tests/tests-main.ml/uring.011.output'.
#  ──────────────────────────────────────────────────────────────────────────────
# 
# 
# ┌──────────────────────────────────────────────────────────────────────────────┐
# │ [FAIL]        uring         12   free_busy.                                  │
# └──────────────────────────────────────────────────────────────────────────────┘
# [exception] Unix.Unix_error(Unix.ENOMEM, "io_uring_register_buffers", "")
#             Raised by primitive operation at Uring.create in file "lib/uring/uring.ml", line 224, characters 2-43
#             Called from Dune__exe__Main.test_free_busy in file "tests/main.ml", line 348, characters 10-40
#             Called from Dune__exe__Main.tc.(fun) in file "tests/main.ml", line 365, characters 60-64
#             Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
#             Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35
#             
# Logs saved to `~/.opam/4.14/.opam-switch/build/uring.0.1/_build/default/tests/_build/_tests/tests-main.ml/uring.012.output'.
#  ──────────────────────────────────────────────────────────────────────────────
# 
# Full test results in `~/.opam/4.14/.opam-switch/build/uring.0.1/_build/default/tests/_build/_tests/tests-main.ml'.
# 5 failures! in 0.038s. 16 tests run.



<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - build uring 0.1
+- 
- No changes have been performed
# To update the current shell environment, run: eval $(opam env)
'opam reinstall --with-test --verbose uring.0.1' failed.
[WARNING] OPAMCONFIRMLEVEL was ignored because CLI 2.0 was requested and it was introduced in 2.1.
[WARNING] OPAMCONFIRMLEVEL was ignored because CLI 2.0 was requested and it was introduced in 2.1.
"/usr/bin/env" "bash" "-c" "opam reinstall --with-test --verbose uring.0.1;
        res=$?;
        test "$res" != 31 && exit "$res";
        export OPAMCLI=2.0;
        build_dir=$(opam var prefix)/.opam-switch/build;
        failed=$(ls "$build_dir");
        partial_fails="";
        for pkg in $failed; do
          if opam show -f x-ci-accept-failures: "$pkg" | grep -qF "\"debian-13\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'uring.0.1' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 1
2026-04-13 14:46.17: Job failed: Failed: Build failed
2026-04-13 14:46.17: Log analysis:
2026-04-13 14:46.17: >>> 
[ERROR] The compilation of uring.0.1 failed at "dune build -p uring -j 71 @install @runtest".
 (score = 20)
2026-04-13 14:46.17: >>> 
[ERROR] The compilation of uring.0.1 failed at "dune build -p uring -j 71 @install @runtest".
 (score = 20)
2026-04-13 14:46.17: The compilation of uring.0.1 failed at "dune build -p uring -j 71 @install @runtest".