(not at the head of any monitored branch or PR)
2026-04-13 14:39.05: New job: test salsa20.0.1.0 with dune.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 $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29704/head" && git reset --hard 3e0c395e
git fetch origin master
git merge --no-edit ba4685aeec7b28fde6af30c7b83004704c68c86a
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.14@sha256:ec5999d94ff5da2754b2d163583ef868ccaefbaaabbe66412fde8712ae6f5126
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn dune.3.22.2 3.22.2
RUN opam reinstall dune.3.22.2; \
    res=$?; \
    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 "$pkg" != 'dune.3.22.2' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
RUN opam reinstall salsa20.0.1.0; \
    res=$?; \
    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 "$pkg" != 'salsa20.0.1.0' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
RUN (opam reinstall --with-test salsa20.0.1.0) || true
RUN opam reinstall --with-test --verbose salsa20.0.1.0; \
    res=$?; \
    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 "$pkg" != 'salsa20.0.1.0' && partial_fails="$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 14:39.05: Using cache hint "ocaml/opam:debian-13-ocaml-4.14@sha256:ec5999d94ff5da2754b2d163583ef868ccaefbaaabbe66412fde8712ae6f5126-dune.3.22.2-salsa20.0.1.0-3e0c395e7b1393a792367f8edca3654dac71e6fd"
2026-04-13 14:39.05: 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.3.22.2 3.22.2"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall dune.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 \"$pkg\" != 'dune.3.22.2' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall salsa20.0.1.0;\
             \n        res=$?;\
             \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 \"$pkg\" != 'salsa20.0.1.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (run (network host)
      (shell "(opam reinstall --with-test salsa20.0.1.0) || true"))
 (run (shell  "opam reinstall --with-test --verbose salsa20.0.1.0;\
             \n        res=$?;\
             \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 \"$pkg\" != 'salsa20.0.1.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-04-13 14:39.05: Waiting for resource in pool OCluster
2026-04-13 15:02.21: Waiting for worker…
2026-04-13 15:06.31: Got resource from pool OCluster
Building on doris.caelum.ci.dev
All commits already cached
HEAD is now at ba4685aeec Merge pull request #29653 from yakobowski/camlidl
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
867c8a52ad10: Pulling fs layer
01ca275a6ca2: Pulling fs layer
01ca275a6ca2: Waiting
867c8a52ad10: Verifying Checksum
867c8a52ad10: Download complete
3b99adeb504e: Verifying Checksum
3b99adeb504e: Download complete
01ca275a6ca2: Verifying Checksum
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 15:08.13 ---> 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 15:08.13 ---> 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.

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
[NOTE] The 'jobs' option was reset, its value was 71 and its new value will vary according to the current number of cores on your machine. You can restore the fixed value using:
           opam option jobs=71 --global
Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2026-04-13 15:08.13 ---> 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                 255
# 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 15:08.13 ---> 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 15:08.13 ---> using "4dfd69403557bd9c8ecec7a8b2fdd9b50feea12943fd8b9150cd347ede8d5f38" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-04-13 15:08.14 ---> using "e4440740ff32adbbcff2b06cb37b16278050a2f11fe3bbb84acde16cec6f57b3" from cache

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-04-13 15:08.14 ---> using "783c15b8b62b3b51001efd6e74ae6392d3b5bfd28262103a88dd85a8bc36074a" 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 6s (37.9 kB/s)
- Reading package lists...
- 
2026-04-13 15:08.14 ---> using "2130130498394389e9bf01ee0c6f95746ce3be4212fa65c803222086e9e79898" from cache

/home/opam: (run (shell "opam pin add -k version -yn dune.3.22.2 3.22.2"))
dune is now pinned to version 3.22.2
2026-04-13 15:08.14 ---> using "a58a3260573f46e665bd2898643e9c41f09fedf9a8dce9d606b49bf430b4a91b" from cache

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall dune.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 \"$pkg\" != 'dune.3.22.2' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
dune.3.22.2 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 1 package
  - install dune 3.22.2 (pinned)

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved dune.3.22.2  (cached)
-> installed dune.3.22.2
Done.
# To update the current shell environment, run: eval $(opam env)
2026-04-13 15:08.14 ---> using "72e5e0d76148f0a1a9dbe5c996a494d4743ec3246a9e99de2b80085ee7ec61e2" from cache

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall salsa20.0.1.0;\
                        \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 \"$pkg\" != 'salsa20.0.1.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
salsa20.0.1.0 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 34 packages
  - install astring             0.8.5          [required by ocb-stubblr]
  - install base                v0.16.4        [required by ppx_sexp_conv]
  - install base-bytes          base           [required by ocplib-endian]
  - install bigarray-compat     1.1.0          [required by cstruct]
  - install conf-gmp            5              [required by zarith]
  - install conf-pkg-config     4              [required by zarith]
  - install cppo                1.8.0          [required by ppx_deriving]
  - install cpuid               0.1.2          [required by nocrypto]
  - install csexp               1.5.2          [required by dune-configurator]
  - install cstruct             6.0.0          [required by salsa20]
  - install cstruct-lwt         6.0.0          [required by nocrypto]
  - install dune-configurator   3.22.2         [required by lwt, base]
  - install lwt                 5.9.2          [required by nocrypto]
  - install mirage-no-solo5     1 (deprecated) [required by nocrypto]
  - install mirage-no-xen       1 (deprecated) [required by nocrypto]
  - install nocrypto            0.5.4-2        [required by salsa20]
  - install num                 1.6            [required by sexplib]
  - install ocaml-compiler-libs v0.12.4        [required by ppxlib]
  - install ocamlbuild          0.16.1         [required by salsa20]
  - install ocamlfind           1.9.8          [required by salsa20]
  - install ocb-stubblr         0.1.1-1        [required by nocrypto, salsa20-core]
  - install ocplib-endian       1.2            [required by lwt]
  - install parsexp             v0.16.0        [required by sexplib]
  - install ppx_derivers        1.2.1          [required by ppx_deriving]
  - install ppx_deriving        6.0.3          [required by nocrypto]
  - install ppx_sexp_conv       v0.16.0        [required by nocrypto]
  - install ppxlib              0.35.0         [required by ppx_deriving, ppx_sexp_conv]
  - install salsa20             0.1.0
  - install salsa20-core        0.3.0          [required by salsa20]
  - install sexplib             v0.16.0        [required by nocrypto]
  - install sexplib0            v0.16.0        [required by ppx_sexp_conv, sexplib]
  - install stdlib-shims        0.3.0          [required by ppxlib]
  - install topkg               1.1.1          [required by salsa20]
  - install zarith              1.14           [required by nocrypto]

The following system packages will first need to be installed:
    libgmp-dev pkg-config

<><> Handling external dependencies <><><><><><><><><><><><><><><><><><><><><><>

opam believes some required external dependencies are missing. opam can:
> 1. Run apt-get to install them (may need root/sudo access)
  2. Display the recommended apt-get command and wait while you run it manually (e.g. in another terminal)
  3. Continue anyway, and, upon success, permanently register that this external dependency is present, but not detectable
  4. Abort the installation

[1/2/3/4] 1

+ /usr/bin/sudo "apt-get" "install" "-qq" "-yy" "libgmp-dev" "pkg-config"
- Selecting previously unselected package libgmpxx4ldbl:amd64.
- (Reading database ... 
(Reading database ... 5%
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(Reading database ... 75%
(Reading database ... 80%
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(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 20623 files and directories currently installed.)
- Preparing to unpack .../0-libgmpxx4ldbl_2%3a6.3.0+dfsg-3_amd64.deb ...
- Unpacking libgmpxx4ldbl:amd64 (2:6.3.0+dfsg-3) ...
- Selecting previously unselected package libgmp-dev:amd64.
- Preparing to unpack .../1-libgmp-dev_2%3a6.3.0+dfsg-3_amd64.deb ...
- Unpacking libgmp-dev:amd64 (2:6.3.0+dfsg-3) ...
- Selecting previously unselected package libpkgconf3:amd64.
- Preparing to unpack .../2-libpkgconf3_1.8.1-4_amd64.deb ...
- Unpacking libpkgconf3:amd64 (1.8.1-4) ...
- Selecting previously unselected package pkgconf-bin.
- Preparing to unpack .../3-pkgconf-bin_1.8.1-4_amd64.deb ...
- Unpacking pkgconf-bin (1.8.1-4) ...
- Selecting previously unselected package pkgconf:amd64.
- Preparing to unpack .../4-pkgconf_1.8.1-4_amd64.deb ...
- Unpacking pkgconf:amd64 (1.8.1-4) ...
- Selecting previously unselected package pkg-config:amd64.
- Preparing to unpack .../5-pkg-config_1.8.1-4_amd64.deb ...
- Unpacking pkg-config:amd64 (1.8.1-4) ...
- Setting up libpkgconf3:amd64 (1.8.1-4) ...
- Setting up libgmpxx4ldbl:amd64 (2:6.3.0+dfsg-3) ...
- Setting up pkgconf-bin (1.8.1-4) ...
- Setting up libgmp-dev:amd64 (2:6.3.0+dfsg-3) ...
- Setting up pkgconf:amd64 (1.8.1-4) ...
- Setting up pkg-config:amd64 (1.8.1-4) ...
- Processing triggers for libc-bin (2.41-12+deb13u2) ...

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved astring.0.8.5  (cached)
-> retrieved base.v0.16.4  (cached)
-> retrieved bigarray-compat.1.1.0  (cached)
-> retrieved conf-gmp.5  (cached)
-> retrieved cppo.1.8.0  (cached)
-> retrieved cpuid.0.1.2  (cached)
-> retrieved csexp.1.5.2  (cached)
-> installed conf-gmp.5
-> installed conf-pkg-config.4
-> retrieved cstruct.6.0.0, cstruct-lwt.6.0.0  (cached)
-> installed cpuid.0.1.2
-> installed bigarray-compat.1.1.0
-> installed csexp.1.5.2
-> installed cstruct.6.0.0
-> retrieved dune-configurator.3.22.2  (cached)
-> installed cppo.1.8.0
-> retrieved lwt.5.9.2  (cached)
-> installed mirage-no-solo5.1
-> installed mirage-no-xen.1
-> retrieved nocrypto.0.5.4-2  (cached)
-> retrieved num.1.6  (cached)
-> retrieved ocaml-compiler-libs.v0.12.4  (cached)
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved ocb-stubblr.0.1.1-1  (cached)
-> retrieved ocplib-endian.1.2  (cached)
-> retrieved parsexp.v0.16.0  (cached)
-> retrieved ppx_derivers.1.2.1  (cached)
-> retrieved ppx_deriving.6.0.3  (cached)
-> retrieved ppx_sexp_conv.v0.16.0  (cached)
-> retrieved ppxlib.0.35.0  (cached)
-> retrieved salsa20.0.1.0  (cached)
-> installed ppx_derivers.1.2.1
-> retrieved salsa20-core.0.3.0  (cached)
-> retrieved sexplib.v0.16.0  (cached)
-> retrieved sexplib0.v0.16.0  (cached)
-> retrieved stdlib-shims.0.3.0  (cached)
-> retrieved topkg.1.1.1  (cached)
-> retrieved zarith.1.14  (cached)
-> installed stdlib-shims.0.3.0
-> installed dune-configurator.3.22.2
-> installed sexplib0.v0.16.0
-> installed ocaml-compiler-libs.v0.12.4
-> installed num.1.6
-> installed parsexp.v0.16.0
-> installed ocamlfind.1.9.8
-> installed base-bytes.base
-> installed sexplib.v0.16.0
-> installed ocplib-endian.1.2
-> installed ocamlbuild.0.16.1
-> installed base.v0.16.4
-> installed zarith.1.14
-> installed lwt.5.9.2
-> installed cstruct-lwt.6.0.0
-> installed topkg.1.1.1
-> installed astring.0.8.5
-> installed ocb-stubblr.0.1.1-1
-> installed salsa20-core.0.3.0
-> installed ppxlib.0.35.0
-> installed ppx_sexp_conv.v0.16.0
-> installed ppx_deriving.6.0.3
-> installed nocrypto.0.5.4-2
[ERROR] The compilation of salsa20.0.1.0 failed at "ocaml pkg/pkg.ml build --pinned false".

#=== ERROR while compiling salsa20.0.1.0 ======================================#
# 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/salsa20.0.1.0
# command              ~/.opam/opam-init/hooks/sandbox.sh build ocaml pkg/pkg.ml build --pinned false
# exit-code            1
# env-file             ~/.opam/log/salsa20-7-690a8c.env
# output-file          ~/.opam/log/salsa20-7-690a8c.out
### output ###
# + ocamlfind ocamlc -config
# + ocamlfind ocamldep -package 'salsa20-core, cstruct, nocrypto' -modules salsa20.ml > salsa20.ml.depends
# + ocamlfind ocamldep -package 'salsa20-core, cstruct, nocrypto' -modules salsa20.mli > salsa20.mli.depends
# + ocamlfind ocamlc -c -g -annot -bin-annot -package 'salsa20-core, cstruct, nocrypto' -w +A-4-6-7-9-40-42-44-48 -warn-error +1..49 -o salsa20.cmi salsa20.mli
# + ocamlfind ocamlopt -c -g -annot -bin-annot -package 'salsa20-core, cstruct, nocrypto' -w +A-4-6-7-9-40-42-44-48 -warn-error +1..49 -o salsa20.cmx salsa20.ml
# + ocamlfind ocamlopt -c -g -annot -bin-annot -package 'salsa20-core, cstruct, nocrypto' -w +A-4-6-7-9-40-42-44-48 -warn-error +1..49 -o salsa20.cmx salsa20.ml
# File "salsa20.ml", line 4, characters 2-22:
# 4 |   mutable state: Cs.t;
#       ^^^^^^^^^^^^^^^^^^^^
# Warning 69 [unused-field]: mutable record field state is never mutated.
# + ocamlfind ocamlopt -a salsa20.cmx -o salsa20.cmxa
# + ocamlfind ocamlc -c -g -annot -bin-annot -package 'salsa20-core, cstruct, nocrypto' -w +A-4-6-7-9-40-42-44-48 -warn-error +1..49 -o salsa20.cmo salsa20.ml
# + ocamlfind ocamlc -c -g -annot -bin-annot -package 'salsa20-core, cstruct, nocrypto' -w +A-4-6-7-9-40-42-44-48 -warn-error +1..49 -o salsa20.cmo salsa20.ml
# File "salsa20.ml", line 4, characters 2-22:
# 4 |   mutable state: Cs.t;
#       ^^^^^^^^^^^^^^^^^^^^
# Warning 69 [unused-field]: mutable record field state is never mutated.
# + ocamlfind ocamlopt -shared -linkall salsa20.cmxa -o salsa20.cmxs
# + ocamlfind ocamlc -a salsa20.cmo -o salsa20.cma
# Solver failed:
#   Ocamlbuild knows of no rules that apply to a target named ./salsa20.mly. This can happen if you ask Ocamlbuild to build a target with the wrong extension (e.g. .opt instead of .native) or if the source files live in directories that have not been specified as include directories.
# Backtrace:
#   - Failed to build the target pkg.otarget
#       - Building pkg.otarget:
#           - Building ./salsa20.ml:
#               - Failed to build all of these:
#                   - Building ./salsa20.mly
#                   - Building ./salsa20.mll
# pkg.ml: [ERROR] cmd ['ocamlbuild' '-use-ocamlfind' '-classic-display' '-j' '4' '-tag' 'debug'
#      '-build-dir' '_build' 'pkg.otarget']: exited with 6



<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - build salsa20 0.1.0
+- 
+- The following changes have been performed
| - install astring             0.8.5
| - install base                v0.16.4
| - install base-bytes          base
| - install bigarray-compat     1.1.0
| - install conf-gmp            5
| - install conf-pkg-config     4
| - install cppo                1.8.0
| - install cpuid               0.1.2
| - install csexp               1.5.2
| - install cstruct             6.0.0
| - install cstruct-lwt         6.0.0
| - install dune-configurator   3.22.2
| - install lwt                 5.9.2
| - install mirage-no-solo5     1
| - install mirage-no-xen       1
| - install nocrypto            0.5.4-2
| - install num                 1.6
| - install ocaml-compiler-libs v0.12.4
| - install ocamlbuild          0.16.1
| - install ocamlfind           1.9.8
| - install ocb-stubblr         0.1.1-1
| - install ocplib-endian       1.2
| - install parsexp             v0.16.0
| - install ppx_derivers        1.2.1
| - install ppx_deriving        6.0.3
| - install ppx_sexp_conv       v0.16.0
| - install ppxlib              0.35.0
| - install salsa20-core        0.3.0
| - install sexplib             v0.16.0
| - install sexplib0            v0.16.0
| - install stdlib-shims        0.3.0
| - install topkg               1.1.1
| - install zarith              1.14
+- 

<><> mirage-no-xen.1 installed successfully <><><><><><><><><><><><><><><><><><>
=> Note: This package is deprecated.

<><> mirage-no-solo5.1 installed successfully <><><><><><><><><><><><><><><><><>
=> Note: This package is deprecated.
# 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-20260413150815.export"
[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 salsa20.0.1.0;
        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 "$pkg" != 'salsa20.0.1.0' && partial_fails="$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 15:09.01: Job failed: Failed: Build failed
2026-04-13 15:09.01: Log analysis:
2026-04-13 15:09.01: >>> 
[ERROR] The compilation of salsa20.0.1.0 failed at "ocaml pkg/pkg.ml build --pinned false".
 (score = 20)
2026-04-13 15:09.01: The compilation of salsa20.0.1.0 failed at "ocaml pkg/pkg.ml build --pinned false".