2025-12-31 20:23.54: New job: test simple_httpd.1.0, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29154/head (8b93e61efd1dead1c10912f5e256af8cfe394e88)
                              on debian-13-ocaml-4.14/s390x

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29154/head" && git reset --hard 8b93e61e
git fetch origin master
git merge --no-edit 56368dd1acf4bf68f49ac2bdd09e360e687d4741
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.14@sha256:bf06dde1f395d0366cac466044f9e9c5eedde46d783049a8c9699cc5862d086f
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn simple_httpd.1.0 1.0
RUN opam reinstall simple_httpd.1.0; \
    res=$?; \
    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 "$pkg" != 'simple_httpd.1.0' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
RUN (opam reinstall --with-test simple_httpd.1.0) || true
RUN opam reinstall --with-test --verbose simple_httpd.1.0; \
    res=$?; \
    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 "$pkg" != 'simple_httpd.1.0' && partial_fails="$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 .

2025-12-31 20:23.54: Using cache hint "ocaml/opam:debian-13-ocaml-4.14@sha256:bf06dde1f395d0366cac466044f9e9c5eedde46d783049a8c9699cc5862d086f-simple_httpd.1.0-8b93e61efd1dead1c10912f5e256af8cfe394e88"
2025-12-31 20:23.54: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.14@sha256:bf06dde1f395d0366cac466044f9e9c5eedde46d783049a8c9699cc5862d086f)
 (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 simple_httpd.1.0 1.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall simple_httpd.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 \"$pkg\" != 'simple_httpd.1.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (run (network host)
      (shell "(opam reinstall --with-test simple_httpd.1.0) || true"))
 (run (shell  "opam reinstall --with-test --verbose simple_httpd.1.0;\
             \n        res=$?;\
             \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 \"$pkg\" != 'simple_httpd.1.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-12-31 20:23.54: Waiting for resource in pool OCluster
2025-12-31 20:23.54: Waiting for worker…
2025-12-31 20:29.58: Got resource from pool OCluster
Building on s390x-worker-01.marist.ci.dev
All commits already cached
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HEAD is now at 56368dd1ac Merge pull request #29151 from dalps/opam-publish-menhir-lsp.0.1.2
Merge made by the 'ort' strategy.
 packages/simple_httpd/simple_httpd.1.0/opam        | 52 ++++++++++++++++++++++
 .../simple_httpd_caqti/simple_httpd_caqti.1.0/opam | 41 +++++++++++++++++
 2 files changed, 93 insertions(+)
 create mode 100644 packages/simple_httpd/simple_httpd.1.0/opam
 create mode 100644 packages/simple_httpd_caqti/simple_httpd_caqti.1.0/opam

(from ocaml/opam:debian-13-ocaml-4.14@sha256:bf06dde1f395d0366cac466044f9e9c5eedde46d783049a8c9699cc5862d086f)
Unable to find image 'ocaml/opam:debian-13-ocaml-4.14@sha256:bf06dde1f395d0366cac466044f9e9c5eedde46d783049a8c9699cc5862d086f' locally
docker.io/ocaml/opam@sha256:bf06dde1f395d0366cac466044f9e9c5eedde46d783049a8c9699cc5862d086f: Pulling from ocaml/opam
Digest: sha256:bf06dde1f395d0366cac466044f9e9c5eedde46d783049a8c9699cc5862d086f
Status: Downloaded newer image for ocaml/opam@sha256:bf06dde1f395d0366cac466044f9e9c5eedde46d783049a8c9699cc5862d086f
2025-12-31 20:30.02 ---> using "324251f3a93bf6e50cbdc6dec6857c9158880794415e95435f550d207fb07a22" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2025-12-31 20:30.02 ---> using "8c719a780f89876d015595229637bea6f42df66d425570a9496b1f7e80ea3585" 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
2025-12-31 20:30.02 ---> using "75a40aa7e57ccc593974151bca8dce47a03493f5144af73fdf77b0ea32bea7a0" 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=s390x 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                 3
# repositories         1 (version-controlled)
# pinned               1 (version)
# current-switch       4.14
# invariant            ["ocaml-base-compiler" {= "4.14.2"}]
# compiler-packages    ocaml-base-compiler.4.14.2, 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       4.14.2
2025-12-31 20:30.02 ---> using "2047b061ab60879d0c26b6194d746216a9c96e3a80ae7922d5129c07484e0d48" 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/"))
2025-12-31 20:30.02 ---> using "798f3d973465326ac7154bc6b0c009b0b51cb21f1c83ca69607e6a97f701fb3f" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2025-12-31 20:30.03 ---> using "245fb4ac7540b16e308bc316adca7686443abc785ce3b55e54ac38b2a99b51c3" from cache

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-12-31 20:30.03 ---> using "e86817201aa5380a4002ea3b2536d5473e7c261d38a4637873ba1a5aa251c0de" 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]
- Fetched 90.7 kB in 0s (669 kB/s)
- Reading package lists...
- 
2025-12-31 20:30.03 ---> using "13d616ebb2b78e02acfde5fcd35523bf978e23f95c0431030b4b2f1850e96661" from cache

/home/opam: (run (shell "opam pin add -k version -yn simple_httpd.1.0 1.0"))
simple_httpd is now pinned to version 1.0
2025-12-31 20:30.05 ---> saved as "7331fb70d5eda6cff3f09019293104555fe06ec6ffd9ec4866fb66c95af3d052"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall simple_httpd.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 \"$pkg\" != 'simple_httpd.1.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
simple_httpd.1.0 is not installed. Install it? [Y/n] y
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler = 4.14.2
    - simple_httpd -> ocaml >= 5.3.0 -> ocaml-variants < 5.5.1~
    You can temporarily relax the switch invariant with `--update-invariant'
  * Missing dependency:
    - simple_httpd -> ocaml >= 5.3.0 -> ocaml-variants < 5.3.1~ -> ocaml-beta
    unmet availability conditions: 'enable-ocaml-beta-repository'
  * Missing dependency:
    - simple_httpd -> ocaml >= 5.3.0 -> ocaml-variants < 5.3.1~ -> system-msvc
    unmet availability conditions: 'os = "win32"'

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall simple_httpd.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 "$pkg" != 'simple_httpd.1.0' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2025-12-31 20:30.21: Job failed: Failed: Build failed
2025-12-31 20:30.21: Log analysis:
2025-12-31 20:30.21: >>> 
No solution found, exiting
 (score = 100)
2025-12-31 20:30.21: [SKIP] Package not available