(for PR #28550)

2025-09-18 20:48.58: New job: test tezt.4.2.0, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/28550/head (4c8ce71f462333fbe6c1361dda9a9a0fec0538a0)
                              on archlinux-ocaml-5.3/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/28550/head" && git reset --hard 4c8ce71f
git fetch origin master
git merge --no-edit a8e705e921fe8c34d04adf522ef716c1fa627f80
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:archlinux-ocaml-5.3@sha256:bdd45261f1a4bca7cff3412cfe7b65d072c0eff8a6923b821f3c1ca4cd485ba5
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn tezt.4.2.0 4.2.0
RUN opam reinstall tezt.4.2.0; \
    res=$?; \
    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 "\"archlinux\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'tezt.4.2.0' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
RUN (opam reinstall --with-test tezt.4.2.0) || true
RUN opam reinstall --with-test --verbose tezt.4.2.0; \
    res=$?; \
    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 "\"archlinux\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'tezt.4.2.0' && partial_fails="$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 .

2025-09-18 20:48.58: Using cache hint "ocaml/opam:archlinux-ocaml-5.3@sha256:bdd45261f1a4bca7cff3412cfe7b65d072c0eff8a6923b821f3c1ca4cd485ba5-tezt.4.2.0-4c8ce71f462333fbe6c1361dda9a9a0fec0538a0"
2025-09-18 20:48.58: Using OBuilder spec:
((from ocaml/opam:archlinux-ocaml-5.3@sha256:bdd45261f1a4bca7cff3412cfe7b65d072c0eff8a6923b821f3c1ca4cd485ba5)
 (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 tezt.4.2.0 4.2.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall tezt.4.2.0;\
             \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 \"\\\"archlinux\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'tezt.4.2.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (run (network host)
      (shell "(opam reinstall --with-test tezt.4.2.0) || true"))
 (run (shell  "opam reinstall --with-test --verbose tezt.4.2.0;\
             \n        res=$?;\
             \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 \"\\\"archlinux\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'tezt.4.2.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-09-18 20:48.58: Waiting for resource in pool OCluster
2025-09-18 20:48.59: Waiting for worker…
2025-09-18 20:50.17: Got resource from pool OCluster
Building on asteria.caelum.ci.dev
All commits already cached
HEAD is now at a8e705e921 Merge pull request #28540 from raphael-proust/conf-gmp-1-fails
Updating a8e705e921..4c8ce71f46
Fast-forward
 packages/tezt/tezt.3.1.0/opam | 1 +
 packages/tezt/tezt.3.1.1/opam | 1 +
 packages/tezt/tezt.4.0.0/opam | 1 +
 packages/tezt/tezt.4.1.0/opam | 1 +
 packages/tezt/tezt.4.2.0/opam | 1 +
 5 files changed, 5 insertions(+)

(from ocaml/opam:archlinux-ocaml-5.3@sha256:bdd45261f1a4bca7cff3412cfe7b65d072c0eff8a6923b821f3c1ca4cd485ba5)
2025-09-18 20:52.09 ---> saved as "bb177f4a6820eade34bcf73c8ac4c618574931f40ec9dd04bdb72ba5a73e7109"

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2025-09-18 20:52.09 ---> saved as "2f404ccfb2d72efe8b94f66965ba30126ba5539f317df43eeff5acf33c9879d4"

/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
2025-09-18 20:52.32 ---> saved as "50909aa19c916d967a35c11d2fbed7b75b0a212a5c196645dde9d00d470c8fa8"

/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         2.4.1
# self-upgrade         no
# system               arch=x86_64 os=linux os-distribution=arch os-version=20250907.0.417472
# 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       5.3
# invariant            ["ocaml-base-compiler" {= "5.3.0"}]
# compiler-packages    ocaml-base-compiler.5.3.0, ocaml-compiler.5.3.0, ocaml-options-vanilla.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/5.3/lib/ocaml/stublibs:/home/opam/.opam/5.3/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       5.3.0
2025-09-18 20:52.32 ---> saved as "61f06768b49d99dc5a92112e960288ac995cca9ce12243be3586aa4d62ea451d"

/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/"))
2025-09-18 20:52.48 ---> saved as "68de94eaaa3744439410d23b3048f82a7b7094a7f0442cfc6dc41f44a9723536"

/home/opam: (copy (src .) (dst opam-repository/))
2025-09-18 20:53.05 ---> saved as "53e4f729266f6f58a28f538d785e3d7deaa35316ad69a54a29a03a048bb57d20"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-09-18 20:53.25 ---> saved as "f62545b0145a26f27c0cdd01a900604a68c46e9db8771d53144f188db462755e"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/sbin/sudo "pacman" "-Sy"
- :: Synchronizing package databases...
-  core downloading...
-  extra downloading...
2025-09-18 20:53.28 ---> saved as "ad804dc24d0438bf4c8847e440fdfb19628a442d85811d6b2954ee086bcf3876"

/home/opam: (run (shell "opam pin add -k version -yn tezt.4.2.0 4.2.0"))
tezt is now pinned to version 4.2.0
2025-09-18 20:53.29 ---> saved as "12e096859a75eced4bdb78a99c6e0c07c8eff2a9cb7bec4a273ad37056233fad"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall tezt.4.2.0;\
                        \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 \"\\\"archlinux\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'tezt.4.2.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
tezt.4.2.0 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 21 packages
  ∗ base-bytes        base           [required by ocplib-endian]
  ∗ clap              0.3.0          [required by tezt]
  ∗ cppo              1.8.0          [required by lwt]
  ∗ csexp             1.5.2          [required by dune-configurator]
  ∗ cstruct           6.2.0          [required by hex]
  ∗ dune              3.20.2         [required by tezt]
  ∗ dune-configurator 3.20.2         [required by lwt]
  ∗ ezjsonm           1.3.0          [required by tezt]
  ∗ fmt               0.11.0         [required by cstruct]
  ∗ hex               1.5.0          [required by ezjsonm]
  ∗ jsonm             1.0.2          [required by ezjsonm]
  ∗ lwt               5.9.2          [required by tezt]
  ∗ ocamlbuild        0.16.1         [required by jsonm]
  ∗ ocamlfind         1.9.8          [required by jsonm]
  ∗ ocplib-endian     1.2            [required by lwt]
  ∗ re                1.13.2         [required by tezt]
  ∗ seq               base           [required by re]
  ∗ sexplib0          v0.17.0        [required by ezjsonm]
  ∗ tezt              4.2.0 (pinned)
  ∗ topkg             1.1.0          [required by jsonm]
  ∗ uutf              1.0.4          [required by ezjsonm]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
⬇ retrieved clap.0.3.0  (cached)
⬇ retrieved cppo.1.8.0  (cached)
⬇ retrieved csexp.1.5.2  (cached)
⬇ retrieved cstruct.6.2.0  (cached)
⬇ retrieved dune.3.20.2, dune-configurator.3.20.2  (cached)
⬇ retrieved ezjsonm.1.3.0  (cached)
⬇ retrieved fmt.0.11.0  (cached)
⬇ retrieved hex.1.5.0  (cached)
⬇ retrieved jsonm.1.0.2  (cached)
⬇ retrieved lwt.5.9.2  (cached)
⬇ retrieved ocamlbuild.0.16.1  (cached)
⬇ retrieved ocamlfind.1.9.8  (cached)
⬇ retrieved ocplib-endian.1.2  (cached)
⬇ retrieved re.1.13.2  (cached)
⬇ retrieved seq.base  (cached)
∗ installed seq.base
⬇ retrieved sexplib0.v0.17.0  (cached)
⬇ retrieved tezt.4.2.0  (cached)
⬇ retrieved topkg.1.1.0  (cached)
⬇ retrieved uutf.1.0.4  (cached)
∗ installed ocamlfind.1.9.8
∗ installed base-bytes.base
∗ installed ocamlbuild.0.16.1
∗ installed topkg.1.1.0
∗ installed uutf.1.0.4
∗ installed fmt.0.11.0
∗ installed jsonm.1.0.2
∗ installed dune.3.20.2
∗ installed csexp.1.5.2
∗ installed clap.0.3.0
∗ installed cppo.1.8.0
∗ installed cstruct.6.2.0
∗ installed re.1.13.2
∗ installed sexplib0.v0.17.0
∗ installed hex.1.5.0
∗ installed ocplib-endian.1.2
∗ installed ezjsonm.1.3.0
∗ installed dune-configurator.3.20.2
∗ installed lwt.5.9.2
∗ installed tezt.4.2.0
Done.
# To update the current shell environment, run: eval $(opam env)
2025-09-18 20:54.05 ---> saved as "abade7d2ac757fc23dd11fab3618a78cb69b57f011fc953e31ae2135c7c2b211"

/home/opam: (run (network host)
                 (shell "(opam reinstall --with-test tezt.4.2.0) || true"))
  * Incompatible packages:
    - (invariant) → ocaml-base-compiler = 5.3.0
    - tezt >= 4.2.0 → ocamlformat = 0.26.2 → ocamlformat-lib = 0.26.2 → ocaml < 5.3 → dkml-base-compiler
    You can temporarily relax the switch invariant with `--update-invariant'
  * Incompatible packages:
    - (invariant) → ocaml-base-compiler = 5.3.0
    - tezt >= 4.2.0 → ocamlformat = 0.26.2 → ocamlformat-lib = 0.26.2 → ocaml < 5.3 → ocaml-variants
  * Missing dependency:
    - tezt >= 4.2.0 → ocamlformat = 0.26.2 → ocamlformat-lib = 0.26.2 → ocaml < 5.3 → ocaml-base-compiler (<= 3.07+1 | = 3.07+2 | = 3.08.0 | = 3.08.1 | = 3.08.2 | = 3.08.3 | = 3.08.4 | = 3.09.0) | ocaml-system (<= 3.07+1 | = 3.07+2 | >= 3.08.0) | ocaml-variants < 3.09.1~
    not available because the package is pinned to version 5.3.0
    unmet availability conditions, e.g. 'sys-ocaml-version = "5.3.0" & (os != "win32" | sys-ocaml-libc = "msvc")'
    no matching version
  * Missing dependency:
    - tezt >= 4.2.0 → ocamlformat = 0.26.2 → ocamlformat-lib = 0.26.2 → ocaml < 5.3 → ocaml-variants → ocaml-beta
    unmet availability conditions: 'enable-ocaml-beta-repository'
  * Missing dependency:
    - tezt >= 4.2.0 → ocamlformat = 0.26.2 → ocamlformat-lib = 0.26.2 → ocaml < 5.3 → ocaml-variants → system-msvc
    unmet availability conditions: 'os = "win32"'

No solution found, exiting
2025-09-18 20:54.13 ---> saved as "1d1c52a77a0da5ac2498da3ff1e01f674d27cc06121f85959fc310b98ee078bc"

/home/opam: (run (shell  "opam reinstall --with-test --verbose tezt.4.2.0;\
                        \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 \"\\\"archlinux\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'tezt.4.2.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
  * Incompatible packages:
    - (invariant) → ocaml-base-compiler = 5.3.0
    - tezt >= 4.2.0 → ocamlformat = 0.26.2 → ocamlformat-lib = 0.26.2 → ocaml < 5.3 → dkml-base-compiler
    You can temporarily relax the switch invariant with `--update-invariant'
  * Incompatible packages:
    - (invariant) → ocaml-base-compiler = 5.3.0
    - tezt >= 4.2.0 → ocamlformat = 0.26.2 → ocamlformat-lib = 0.26.2 → ocaml < 5.3 → ocaml-variants
  * Missing dependency:
    - tezt >= 4.2.0 → ocamlformat = 0.26.2 → ocamlformat-lib = 0.26.2 → ocaml < 5.3 → ocaml-base-compiler (<= 3.07+1 | = 3.07+2 | = 3.08.0 | = 3.08.1 | = 3.08.2 | = 3.08.3 | = 3.08.4 | = 3.09.0) | ocaml-system (<= 3.07+1 | = 3.07+2 | >= 3.08.0) | ocaml-variants < 3.09.1~
    not available because the package is pinned to version 5.3.0
    unmet availability conditions, e.g. 'sys-ocaml-version = "5.3.0" & (os != "win32" | sys-ocaml-libc = "msvc")'
    no matching version
  * Missing dependency:
    - tezt >= 4.2.0 → ocamlformat = 0.26.2 → ocamlformat-lib = 0.26.2 → ocaml < 5.3 → ocaml-variants → ocaml-beta
    unmet availability conditions: 'enable-ocaml-beta-repository'
  * Missing dependency:
    - tezt >= 4.2.0 → ocamlformat = 0.26.2 → ocamlformat-lib = 0.26.2 → ocaml < 5.3 → ocaml-variants → system-msvc
    unmet availability conditions: 'os = "win32"'

No solution found, exiting
'opam reinstall --with-test --verbose tezt.4.2.0' failed.
"/usr/bin/env" "bash" "-c" "opam reinstall --with-test --verbose tezt.4.2.0;
        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 "\"archlinux\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'tezt.4.2.0' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2025-09-18 20:54.28: Job failed: Failed: Build failed
2025-09-18 20:54.28: Log analysis:
2025-09-18 20:54.28: >>> 
No solution found, exiting
 (score = 100)
2025-09-18 20:54.28: >>> 
No solution found, exiting
 (score = 100)
2025-09-18 20:54.28: [SKIP] Package not available