(not at the head of any monitored branch or PR)
2026-03-10 08:59.45: New job: test lwt_eio.0.5.1, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29530/head (3af7d0a25910b3d20c909e559efb484eb6a78128)
                              on ubuntu-25.10-ocaml-5.4/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29530/head" && git reset --hard 3af7d0a2
git fetch origin master
git merge --no-edit 3c70647a78a7fd22066fca4f17f7ca4514500663
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:ubuntu-25.10-ocaml-5.4@sha256:8beb8441cc86540c3c3e6a38b20517f3612aa5027dcbfee06849462858df621c
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn lwt_eio.0.5.1 0.5.1
RUN opam reinstall lwt_eio.0.5.1; \
    res=$?; \
    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 "\"ubuntu-25.10\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'lwt_eio.0.5.1' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
RUN (opam reinstall --with-test lwt_eio.0.5.1) || true
RUN opam reinstall --with-test --verbose lwt_eio.0.5.1; \
    res=$?; \
    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 "\"ubuntu-25.10\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'lwt_eio.0.5.1' && partial_fails="$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 .

2026-03-10 08:59.45: Using cache hint "ocaml/opam:ubuntu-25.10-ocaml-5.4@sha256:8beb8441cc86540c3c3e6a38b20517f3612aa5027dcbfee06849462858df621c-lwt_eio.0.5.1-3af7d0a25910b3d20c909e559efb484eb6a78128"
2026-03-10 08:59.45: Using OBuilder spec:
((from ocaml/opam:ubuntu-25.10-ocaml-5.4@sha256:8beb8441cc86540c3c3e6a38b20517f3612aa5027dcbfee06849462858df621c)
 (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 lwt_eio.0.5.1 0.5.1"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall lwt_eio.0.5.1;\
             \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 \"\\\"ubuntu-25.10\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'lwt_eio.0.5.1' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (run (network host)
      (shell "(opam reinstall --with-test lwt_eio.0.5.1) || true"))
 (run (shell  "opam reinstall --with-test --verbose lwt_eio.0.5.1;\
             \n        res=$?;\
             \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 \"\\\"ubuntu-25.10\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'lwt_eio.0.5.1' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-03-10 08:59.45: Waiting for resource in pool OCluster
2026-03-10 09:19.16: Waiting for worker…
2026-03-10 09:20.19: Got resource from pool OCluster
Building on asteria.caelum.ci.dev
All commits already cached
HEAD is now at 3c70647a78 Merge pull request #29507 from NathanReb/release-ppxlib-0-38-0-5-5-preview
Updating 3c70647a78..3af7d0a259
Fast-forward
 packages/bimage-lwt/bimage-lwt.0.3.0/opam    | 6 +++++-
 packages/bimage-lwt/bimage-lwt.0.3.1/opam    | 6 +++++-
 packages/bimage-lwt/bimage-lwt.0.4.0/opam    | 6 +++++-
 packages/caqti-lwt/caqti-lwt.0.11.0/opam     | 4 +++-
 packages/caqti-lwt/caqti-lwt.1.0.0/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.1.2.0/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.1.3.0/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.1.6.0/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.1.7.0/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.1.8.0/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.1.9.0/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.2.0.1/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.2.1.1/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.2.2.4/opam      | 6 +++++-
 packages/fuseau-lwt/fuseau-lwt.0.1/opam      | 6 +++++-
 packages/lambda-term/lambda-term.1.13/opam   | 6 +++++-
 packages/lambda-term/lambda-term.2.0.1/opam  | 6 +++++-
 packages/lambda-term/lambda-term.2.0.2/opam  | 6 +++++-
 packages/lambda-term/lambda-term.2.0.3/opam  | 6 +++++-
 packages/lambda-term/lambda-term.2.0/opam    | 6 +++++-
 packages/lambda-term/lambda-term.3.0.0/opam  | 6 +++++-
 packages/lambda-term/lambda-term.3.0.1/opam  | 6 +++++-
 packages/lambda-term/lambda-term.3.1.0/opam  | 6 +++++-
 packages/lambda-term/lambda-term.3.2.0/opam  | 6 +++++-
 packages/lambda-term/lambda-term.3.3.0/opam  | 6 +++++-
 packages/lambda-term/lambda-term.3.3.1/opam  | 6 +++++-
 packages/lambda-term/lambda-term.3.3.2/opam  | 6 +++++-
 packages/lwt_domain/lwt_domain.0.1.0/opam    | 6 +++++-
 packages/lwt_domain/lwt_domain.0.2.0/opam    | 6 +++++-
 packages/lwt_domain/lwt_domain.0.3.0/opam    | 6 +++++-
 packages/lwt_eio/lwt_eio.0.1/opam            | 6 +++++-
 packages/lwt_eio/lwt_eio.0.2/opam            | 6 +++++-
 packages/lwt_eio/lwt_eio.0.3/opam            | 6 +++++-
 packages/lwt_eio/lwt_eio.0.4/opam            | 6 +++++-
 packages/lwt_eio/lwt_eio.0.5.1/opam          | 6 +++++-
 packages/lwt_eio/lwt_eio.0.5/opam            | 6 +++++-
 packages/lwt_glib/lwt_glib.1.0.1/opam        | 6 +++++-
 packages/lwt_glib/lwt_glib.1.1.0/opam        | 6 +++++-
 packages/lwt_glib/lwt_glib.1.1.1/opam        | 6 +++++-
 packages/lwt_log/lwt_log.1.1.0/opam          | 6 +++++-
 packages/lwt_log/lwt_log.1.1.1/opam          | 6 +++++-
 packages/lwt_log/lwt_log.1.1.2/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.1.0.0/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.1.0.1/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.1.1.0/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.1.2.0/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.1.2.1/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.1.2.2/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.1.2.3/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.1.2.4/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.2.0.0/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.2.0.1/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.2.0.2/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.2.0.3/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.2.1.0/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.5.8.0/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.5.8.1/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.5.9.1/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.5.9.2/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.5.9.3/opam          | 6 +++++-
 packages/moonpool-lwt/moonpool-lwt.0.10/opam | 6 +++++-
 packages/moonpool-lwt/moonpool-lwt.0.6/opam  | 6 +++++-
 packages/moonpool-lwt/moonpool-lwt.0.7/opam  | 6 +++++-
 packages/moonpool-lwt/moonpool-lwt.0.8/opam  | 6 +++++-
 packages/moonpool-lwt/moonpool-lwt.0.9/opam  | 6 +++++-
 packages/mwt/mwt.0.1.0/opam                  | 6 +++++-
 packages/nocrypto/nocrypto.0.5.4-1/opam      | 6 +++++-
 packages/nocrypto/nocrypto.0.5.4-2/opam      | 6 +++++-
 packages/ocluster/ocluster.0.1/opam          | 4 +++-
 packages/ocluster/ocluster.0.2.1/opam        | 6 +++++-
 packages/ocluster/ocluster.0.2/opam          | 4 +++-
 packages/ocluster/ocluster.0.3.0/opam        | 6 +++++-
 packages/picos/picos.0.3.0/opam              | 6 +++++-
 packages/picos/picos.0.4.0/opam              | 6 +++++-
 packages/picos_lwt/picos_lwt.0.5.0/opam      | 6 +++++-
 packages/picos_lwt/picos_lwt.0.6.0/opam      | 6 +++++-
 packages/tezt/tezt.2.0.0/opam                | 6 +++++-
 packages/tezt/tezt.3.0.0/opam                | 4 +++-
 packages/tezt/tezt.3.1.0/opam                | 4 +++-
 packages/tezt/tezt.3.1.1/opam                | 4 +++-
 packages/tezt/tezt.4.0.0/opam                | 4 +++-
 packages/tezt/tezt.4.1.0/opam                | 4 +++-
 packages/tezt/tezt.4.2.0/opam                | 4 +++-
 packages/tezt/tezt.4.3.0/opam                | 4 +++-
 84 files changed, 400 insertions(+), 84 deletions(-)

(from ocaml/opam:ubuntu-25.10-ocaml-5.4@sha256:8beb8441cc86540c3c3e6a38b20517f3612aa5027dcbfee06849462858df621c)
Unable to find image 'ocaml/opam:ubuntu-25.10-ocaml-5.4@sha256:8beb8441cc86540c3c3e6a38b20517f3612aa5027dcbfee06849462858df621c' locally
docker.io/ocaml/opam@sha256:8beb8441cc86540c3c3e6a38b20517f3612aa5027dcbfee06849462858df621c: Pulling from ocaml/opam
16c195d4c5e9: Already exists
eef1e591e8a9: Already exists
475b07e782b4: Already exists
18fb99e993e1: Already exists
ca37c6a45798: Already exists
c57691858953: Already exists
5512f1558e14: Already exists
43fe003df081: Already exists
6e925d30090e: Already exists
3417bab79df5: Already exists
0aa36f5a555a: Already exists
474fc3d17365: Already exists
49a3768a5f63: Already exists
c5abc7eafdff: Already exists
62941fb37fba: Already exists
378967450a13: Already exists
b77cfa4e2ae3: Already exists
cb268f925fd0: Already exists
cb268f925fd0: Already exists
3bf4591bde94: Already exists
34a47fe3891d: Already exists
0e9e8d8d7a8c: Already exists
024b2f94e104: Already exists
4f4fb700ef54: Already exists
071fbbcf50f3: Already exists
b43a2046bab2: Already exists
f34036196a91: Already exists
b07913c71979: Already exists
f1c987ef231c: Already exists
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aa1dac00c891: Already exists
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117130324f1d: Already exists
edf62db1b518: Already exists
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a7061a59a18a: Already exists
521f29fbd049: Already exists
e892ad30f7c8: Already exists
2c3b7cb0f6a2: Already exists
397e2b982cad: Already exists
3f78ab19b95f: Already exists
145becb678e8: Already exists
24fbfeac6f2f: Pulling fs layer
f1f4070f6888: Pulling fs layer
f8bcabb9dda2: Pulling fs layer
69c505cf4c80: Pulling fs layer
a63e24a51e8d: Pulling fs layer
b541ca6b32b7: Pulling fs layer
55af3f8ca529: Pulling fs layer
b541ca6b32b7: Waiting
69c505cf4c80: Waiting
a63e24a51e8d: Waiting
55af3f8ca529: Waiting
f8bcabb9dda2: Waiting
24fbfeac6f2f: Verifying Checksum
24fbfeac6f2f: Download complete
24fbfeac6f2f: Pull complete
f8bcabb9dda2: Verifying Checksum
f8bcabb9dda2: Download complete
f1f4070f6888: Verifying Checksum
f1f4070f6888: Download complete
f1f4070f6888: Pull complete
f8bcabb9dda2: Pull complete
a63e24a51e8d: Download complete
b541ca6b32b7: Download complete
55af3f8ca529: Download complete
69c505cf4c80: Verifying Checksum
69c505cf4c80: Download complete
69c505cf4c80: Pull complete
a63e24a51e8d: Pull complete
b541ca6b32b7: Pull complete
55af3f8ca529: Pull complete
Digest: sha256:8beb8441cc86540c3c3e6a38b20517f3612aa5027dcbfee06849462858df621c
Status: Downloaded newer image for ocaml/opam@sha256:8beb8441cc86540c3c3e6a38b20517f3612aa5027dcbfee06849462858df621c
2026-03-10 09:22.18 ---> using "819caa7c58df339c743ad728072ea5edb6743f0b91312eb15ebc4ed3af6fe0b1" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-03-10 09:22.18 ---> using "057789e54a222e62ce83ea485667c84d8f549fd2999015a11d6c19d73c9f9a71" 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.

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.

Continue? [Y/n] y
Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2026-03-10 09:22.18 ---> using "8d611d9fcf1d669179e4ed974031c845536b8a5d02d9b3f4c39dca92f2d4bc8a" 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=ubuntu os-version=25.10
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 255
# repositories         1 (version-controlled)
# pinned               1 (version)
# current-switch       5.4
# invariant            ["ocaml-base-compiler" {= "5.4.0"}]
# compiler-packages    ocaml-base-compiler.5.4.0, ocaml-compiler.5.4.0, ocaml-options-vanilla.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/5.4/lib/ocaml/stublibs:/home/opam/.opam/5.4/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       5.4.0
2026-03-10 09:22.18 ---> using "966014fd4f060f9f0b1405ddc75267b4795501a642cedbf884b9d503910523f5" 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/"))
2026-03-10 09:22.18 ---> using "ac4bdd7a86e03db0096a83b35249ad311a51f12b80e097c757326f14cd35224f" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-03-10 09:22.19 ---> using "62400c826ce019bf1122f7cbe9e8a28743dffb907b665f6591061dd24243c7b3" from cache

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-03-10 09:22.19 ---> using "25c2ec6c906fe988148ba6f631e5b8b8d8c97e269042e49050f0b47f0e143f0a" from cache

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Hit:1 http://archive.ubuntu.com/ubuntu questing InRelease
- Get:2 http://archive.ubuntu.com/ubuntu questing-updates InRelease [136 kB]
- Get:3 http://security.ubuntu.com/ubuntu questing-security InRelease [136 kB]
- Get:4 http://archive.ubuntu.com/ubuntu questing-backports InRelease [133 kB]
- Get:5 http://security.ubuntu.com/ubuntu questing-security/main amd64 Packages [275 kB]
- Get:6 http://archive.ubuntu.com/ubuntu questing-updates/main amd64 Packages [409 kB]
- Get:7 http://archive.ubuntu.com/ubuntu questing-updates/restricted amd64 Packages [204 kB]
- Get:8 http://security.ubuntu.com/ubuntu questing-security/restricted amd64 Packages [202 kB]
- Get:9 http://security.ubuntu.com/ubuntu questing-security/universe amd64 Packages [176 kB]
- Get:10 http://archive.ubuntu.com/ubuntu questing-updates/universe amd64 Packages [258 kB]
- Fetched 1928 kB in 0s (10.7 MB/s)
- Reading package lists...
2026-03-10 09:22.19 ---> using "3327c07df415b146263610a411cc9ae6afeaf5aad58b98ee42851ce0d627e04a" from cache

/home/opam: (run (shell "opam pin add -k version -yn lwt_eio.0.5.1 0.5.1"))
lwt_eio is now pinned to version 0.5.1
2026-03-10 09:22.19 ---> using "aa6d45edf15526d7c83f99feb303596c097d6bb40523614a06a771a28f0b426c" from cache

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall lwt_eio.0.5.1;\
                        \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 \"\\\"ubuntu-25.10\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'lwt_eio.0.5.1' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
lwt_eio.0.5.1 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 23 packages
  - install base-bytes         base           [required by ocplib-endian]
  - install bigstringaf        0.10.0         [required by eio]
  - install cppo               1.8.0          [required by lwt]
  - install csexp              1.5.2          [required by dune-configurator]
  - install cstruct            6.2.0          [required by eio]
  - install domain-local-await 1.0.1          [required by eio]
  - install dune               3.21.1         [required by lwt_eio]
  - install dune-configurator  3.21.1         [required by lwt]
  - install eio                1.3            [required by lwt_eio]
  - install fmt                0.11.0         [required by eio]
  - install hmap               0.8.1          [required by eio]
  - install lwt                6.0.0          [required by lwt_eio]
  - install lwt-dllist         1.1.0          [required by eio]
  - install lwt_eio            0.5.1 (pinned)
  - install mtime              2.1.0          [required by eio]
  - install ocamlbuild         0.16.1         [required by hmap, mtime]
  - install ocamlfind          1.9.8          [required by hmap, mtime]
  - install ocplib-endian      1.2            [required by lwt]
  - install optint             0.3.0          [required by eio]
  - install psq                0.2.1          [required by eio]
  - install seq                base           [required by psq]
  - install thread-table       1.0.0          [required by domain-local-await]
  - install topkg              1.1.1          [required by hmap, mtime]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved bigstringaf.0.10.0  (cached)
-> retrieved cppo.1.8.0  (cached)
-> retrieved csexp.1.5.2  (cached)
-> retrieved cstruct.6.2.0  (cached)
-> retrieved domain-local-await.1.0.1  (cached)
-> retrieved dune.3.21.1, dune-configurator.3.21.1  (cached)
-> retrieved eio.1.3  (cached)
-> retrieved fmt.0.11.0  (cached)
-> retrieved hmap.0.8.1  (cached)
-> retrieved lwt.6.0.0  (cached)
-> retrieved lwt-dllist.1.1.0  (cached)
-> retrieved lwt_eio.0.5.1  (cached)
-> retrieved mtime.2.1.0  (cached)
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved ocplib-endian.1.2  (cached)
-> retrieved optint.0.3.0  (cached)
-> retrieved psq.0.2.1  (cached)
-> retrieved seq.base  (cached)
-> installed seq.base
-> retrieved thread-table.1.0.0  (cached)
-> retrieved topkg.1.1.1  (cached)
-> installed ocamlfind.1.9.8
-> installed base-bytes.base
-> installed ocamlbuild.0.16.1
-> installed topkg.1.1.1
-> installed hmap.0.8.1
-> installed fmt.0.11.0
-> installed mtime.2.1.0
-> installed dune.3.21.1
-> installed lwt-dllist.1.1.0
-> installed csexp.1.5.2
-> installed cppo.1.8.0
-> installed cstruct.6.2.0
-> installed optint.0.3.0
-> installed psq.0.2.1
-> installed thread-table.1.0.0
-> installed ocplib-endian.1.2
-> installed domain-local-await.1.0.1
-> installed dune-configurator.3.21.1
-> installed bigstringaf.0.10.0
-> installed eio.1.3
-> installed lwt.6.0.0
-> installed lwt_eio.0.5.1
Done.
# To update the current shell environment, run: eval $(opam env)
2026-03-10 09:22.53 ---> saved as "acdb4572d3f7ef548fe7be7ddb5a01cfd683e9006adc678c597396c2f095ac30"

/home/opam: (run (network host)
                 (shell "(opam reinstall --with-test lwt_eio.0.5.1) || true"))
The following actions will be performed:
=== recompile 4 packages
  - recompile cstruct       6.2.0          [uses fmt]
  - recompile eio           1.3            [uses fmt]
  - recompile fmt           0.11.0         [uses cmdliner]
  - recompile lwt_eio       0.5.1 (pinned)
=== install 13 packages
  - install   astring       0.8.5          [required by mdx]
  - install   camlp-streams 5.0.1          [required by mdx]
  - install   cmdliner      2.1.0          [required by mdx]
  - install   eio_linux     1.3            [required by eio_main]
  - install   eio_main      1.3            [required by lwt_eio]
  - install   eio_posix     1.3            [required by eio_main]
  - install   iomux         0.4            [required by eio_posix]
  - install   logs          0.10.0         [required by mdx]
  - install   mdx           2.5.1          [required by lwt_eio]
  - install   ocaml-version 4.0.3          [required by mdx]
  - install   re            1.14.0         [required by mdx]
  - install   result        1.5            [required by mdx]
  - install   uring         2.7.0          [required by eio_linux]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved astring.0.8.5  (https://opam.ocaml.org/cache)
-> retrieved camlp-streams.5.0.1  (https://opam.ocaml.org/cache)
-> retrieved cmdliner.2.1.0  (https://opam.ocaml.org/cache)
-> retrieved cstruct.6.2.0  (https://opam.ocaml.org/cache)
-> installed camlp-streams.5.0.1
-> retrieved eio.1.3, eio_linux.1.3, eio_main.1.3, eio_posix.1.3  (https://opam.ocaml.org/cache)
-> retrieved fmt.0.11.0  (https://opam.ocaml.org/cache)
-> retrieved iomux.0.4  (https://opam.ocaml.org/cache)
-> retrieved logs.0.10.0  (https://opam.ocaml.org/cache)
-> retrieved mdx.2.5.1  (https://opam.ocaml.org/cache)
-> retrieved ocaml-version.4.0.3  (https://opam.ocaml.org/cache)
-> retrieved re.1.14.0  (https://opam.ocaml.org/cache)
-> retrieved result.1.5  (https://opam.ocaml.org/cache)
-> installed astring.0.8.5
-> installed iomux.0.4
-> installed ocaml-version.4.0.3
-> retrieved uring.2.7.0  (https://opam.ocaml.org/cache)
-> installed result.1.5
-> installed re.1.14.0
-> removed   lwt_eio.0.5.1
-> removed   eio.1.3
-> removed   cstruct.6.2.0
-> removed   fmt.0.11.0
-> installed cmdliner.2.1.0
-> installed fmt.0.11.0
-> installed cstruct.6.2.0
-> installed logs.0.10.0
-> installed eio.1.3
-> installed uring.2.7.0
-> installed eio_posix.1.3
-> installed eio_linux.1.3
-> installed mdx.2.5.1
-> installed eio_main.1.3
[ERROR] The compilation of lwt_eio.0.5.1 failed at "dune build -p lwt_eio -j 255 @install @runtest".

#=== ERROR while compiling lwt_eio.0.5.1 ======================================#
# context              2.5.0 | linux/x86_64 | ocaml-base-compiler.5.4.0 | pinned(https://github.com/ocaml-multicore/lwt_eio/releases/download/v0.5.1/lwt_eio-0.5.1.tbz)
# path                 ~/.opam/5.4/.opam-switch/build/lwt_eio.0.5.1
# command              ~/.opam/opam-init/hooks/sandbox.sh build dune build -p lwt_eio -j 255 @install @runtest
# exit-code            1
# env-file             ~/.opam/log/lwt_eio-7-03db5c.env
# output-file          ~/.opam/log/lwt_eio-7-03db5c.out
### output ###
# File "test/test.md", line 1, characters 0-0:
# /usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/test.md _build/default/test/.mdx/test.md.corrected
# diff --git a/_build/default/test/test.md b/_build/default/test/.mdx/test.md.corrected
# index 7a9272f..ac6774e 100644
# --- a/_build/default/test/test.md
# +++ b/_build/default/test/.mdx/test.md.corrected
# @@ -41,20 +41,20 @@ Lwt and Eio fibers don't block each other:
#      );;
#  +eio: i = 1
#  +  lwt: i = 1
# -+  lwt: i = 2
#  +eio: i = 2
# -+  lwt: i = 3
# ++  lwt: i = 2
#  +eio: i = 3
# -+  lwt: i = 4
# ++  lwt: i = 3
#  +eio: i = 4
# -+  lwt: i = 5
# ++  lwt: i = 4
#  +eio: i = 5
# -+  lwt: i = 6
# ++  lwt: i = 5
#  +eio: i = 6
# -+  lwt: i = 7
# ++  lwt: i = 6
#  +eio: i = 7
# -+  lwt: i = 8
# ++  lwt: i = 7
#  +eio: i = 8
# ++  lwt: i = 8
#  - : unit = ()
#  ```
#  



<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - build lwt_eio 0.5.1
+- 
+- The following changes have been performed
| - remove    lwt_eio       0.5.1
| - recompile cstruct       6.2.0
| - recompile eio           1.3
| - recompile fmt           0.11.0
| - install   astring       0.8.5
| - install   camlp-streams 5.0.1
| - install   cmdliner      2.1.0
| - install   eio_linux     1.3
| - install   eio_main      1.3
| - install   eio_posix     1.3
| - install   iomux         0.4
| - install   logs          0.10.0
| - install   mdx           2.5.1
| - install   ocaml-version 4.0.3
| - install   re            1.14.0
| - install   result        1.5
| - install   uring         2.7.0
+- 
# 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/5.4/.opam-switch/backup/state-20260310092253.export"
Or you can retry to install your package selection with:
    /usr/bin/opam install --restore
2026-03-10 09:23.11 ---> saved as "42cc4273d8a25bdd828d2c75eefd91d261726c9dd773b20c3b3c2f57411c506c"

/home/opam: (run (shell  "opam reinstall --with-test --verbose lwt_eio.0.5.1;\
                        \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 \"\\\"ubuntu-25.10\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'lwt_eio.0.5.1' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
lwt_eio.0.5.1 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 1 package
  - install lwt_eio 0.5.1 (pinned)

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Processing  2/3: [lwt_eio: dune build]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "dune" "build" "-p" "lwt_eio" "-j" "255" "@install" "@runtest" (CWD=/home/opam/.opam/5.4/.opam-switch/build/lwt_eio.0.5.1)
- File "test/test.md", line 1, characters 0-0:
- /usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/test.md _build/default/test/.mdx/test.md.corrected
- diff --git a/_build/default/test/test.md b/_build/default/test/.mdx/test.md.corrected
- index 7a9272f..ac6774e 100644
- --- a/_build/default/test/test.md
- +++ b/_build/default/test/.mdx/test.md.corrected
- @@ -41,20 +41,20 @@ Lwt and Eio fibers don't block each other:
-      );;
-  +eio: i = 1
-  +  lwt: i = 1
- -+  lwt: i = 2
-  +eio: i = 2
- -+  lwt: i = 3
- ++  lwt: i = 2
-  +eio: i = 3
- -+  lwt: i = 4
- ++  lwt: i = 3
-  +eio: i = 4
- -+  lwt: i = 5
- ++  lwt: i = 4
-  +eio: i = 5
- -+  lwt: i = 6
- ++  lwt: i = 5
-  +eio: i = 6
- -+  lwt: i = 7
- ++  lwt: i = 6
-  +eio: i = 7
- -+  lwt: i = 8
- ++  lwt: i = 7
-  +eio: i = 8
- ++  lwt: i = 8
-  - : unit = ()
-  ```
-  
[ERROR] The compilation of lwt_eio.0.5.1 failed at "dune build -p lwt_eio -j 255 @install @runtest".

#=== ERROR while compiling lwt_eio.0.5.1 ======================================#
# context              2.5.0 | linux/x86_64 | ocaml-base-compiler.5.4.0 | pinned(https://github.com/ocaml-multicore/lwt_eio/releases/download/v0.5.1/lwt_eio-0.5.1.tbz)
# path                 ~/.opam/5.4/.opam-switch/build/lwt_eio.0.5.1
# command              ~/.opam/opam-init/hooks/sandbox.sh build dune build -p lwt_eio -j 255 @install @runtest
# exit-code            1
# env-file             ~/.opam/log/lwt_eio-7-d031c6.env
# output-file          ~/.opam/log/lwt_eio-7-d031c6.out
### output ###
# File "test/test.md", line 1, characters 0-0:
# /usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/test.md _build/default/test/.mdx/test.md.corrected
# diff --git a/_build/default/test/test.md b/_build/default/test/.mdx/test.md.corrected
# index 7a9272f..ac6774e 100644
# --- a/_build/default/test/test.md
# +++ b/_build/default/test/.mdx/test.md.corrected
# @@ -41,20 +41,20 @@ Lwt and Eio fibers don't block each other:
#      );;
#  +eio: i = 1
#  +  lwt: i = 1
# -+  lwt: i = 2
#  +eio: i = 2
# -+  lwt: i = 3
# ++  lwt: i = 2
#  +eio: i = 3
# -+  lwt: i = 4
# ++  lwt: i = 3
#  +eio: i = 4
# -+  lwt: i = 5
# ++  lwt: i = 4
#  +eio: i = 5
# -+  lwt: i = 6
# ++  lwt: i = 5
#  +eio: i = 6
# -+  lwt: i = 7
# ++  lwt: i = 6
#  +eio: i = 7
# -+  lwt: i = 8
# ++  lwt: i = 7
#  +eio: i = 8
# ++  lwt: i = 8
#  - : unit = ()
#  ```
#  



<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - build lwt_eio 0.5.1
+- 
- No changes have been performed
# To update the current shell environment, run: eval $(opam env)
'opam reinstall --with-test --verbose lwt_eio.0.5.1' failed.
[WARNING] OPAMCONFIRMLEVEL was ignored because CLI 2.0 was requested and it was introduced in 2.1.
[WARNING] OPAMCONFIRMLEVEL was ignored because CLI 2.0 was requested and it was introduced in 2.1.
"/usr/bin/env" "bash" "-c" "opam reinstall --with-test --verbose lwt_eio.0.5.1;
        res=$?;
        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 "\"ubuntu-25.10\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'lwt_eio.0.5.1' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 1
2026-03-10 09:23.30: Job failed: Failed: Build failed
2026-03-10 09:23.30: Log analysis:
2026-03-10 09:23.30: >>> 
[ERROR] The compilation of lwt_eio.0.5.1 failed at "dune build -p lwt_eio -j 255 @install @runtest".
 (score = 20)
2026-03-10 09:23.30: >>> 
[ERROR] The compilation of lwt_eio.0.5.1 failed at "dune build -p lwt_eio -j 255 @install @runtest".
 (score = 20)
2026-03-10 09:23.30: The compilation of lwt_eio.0.5.1 failed at "dune build -p lwt_eio -j 255 @install @runtest".