(for PR #29566)

2026-03-20 14:10.43: New job: build ppx_marshal.0.4.1, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29566/head (e61292316e671dff4d23c1c4ff6c8357b7b78765)
                              on debian-13-ocaml-4.12/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29566/head" && git reset --hard e6129231
git fetch origin master
git merge --no-edit 9f189ca4f94fbb5f0045820bf3c4ffafb21145ef
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.12@sha256:981622ba01d0fb8e584f4e7883a3696b8b7843381ded3a7cf8baed165427ce9b
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn ppx_marshal.0.4.1 0.4.1
RUN opam reinstall ppx_marshal.0.4.1; \
    res=$?; \
    test "$res" != 31 && exit "$res"; \
    export OPAMCLI=2.0; \
    build_dir=$(opam var prefix)/.opam-switch/build; \
    failed=$(ls "$build_dir"); \
    partial_fails=""; \
    for pkg in $failed; do \
    if opam show -f x-ci-accept-failures: "$pkg" | grep -qF "\"debian-13\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'ppx_marshal.0.4.1' && partial_fails="$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 .

2026-03-20 14:10.43: Using cache hint "ocaml/opam:debian-13-ocaml-4.12@sha256:981622ba01d0fb8e584f4e7883a3696b8b7843381ded3a7cf8baed165427ce9b-ppx_marshal.0.4.1-e61292316e671dff4d23c1c4ff6c8357b7b78765"
2026-03-20 14:10.43: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.12@sha256:981622ba01d0fb8e584f4e7883a3696b8b7843381ded3a7cf8baed165427ce9b)
 (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 ppx_marshal.0.4.1 0.4.1"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall ppx_marshal.0.4.1;\
             \n        res=$?;\
             \n        test \"$res\" != 31 && exit \"$res\";\
             \n        export OPAMCLI=2.0;\
             \n        build_dir=$(opam var prefix)/.opam-switch/build;\
             \n        failed=$(ls \"$build_dir\");\
             \n        partial_fails=\"\";\
             \n        for pkg in $failed; do\
             \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-13\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'ppx_marshal.0.4.1' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-03-20 14:10.43: Waiting for resource in pool OCluster
2026-03-20 14:10.47: Waiting for worker…
2026-03-20 14:10.47: Got resource from pool OCluster
Building on phoebe
All commits already cached
HEAD is now at 9f189ca4f9 Merge pull request #29562 from shonfeder/release-dune-3.22.0
Updating 9f189ca4f9..e61292316e
Fast-forward
 packages/gendarme-csv/gendarme-csv.0.4.1/opam      | 38 ++++++++++++++++++
 .../gendarme-ezjsonm/gendarme-ezjsonm.0.4.1/opam   | 40 +++++++++++++++++++
 packages/gendarme-json/gendarme-json.0.4.1/opam    | 21 ++++++++++
 packages/gendarme-toml/gendarme-toml.0.4.1/opam    | 38 ++++++++++++++++++
 packages/gendarme-yaml/gendarme-yaml.0.4.1/opam    | 38 ++++++++++++++++++
 .../gendarme-yojson/gendarme-yojson.0.4.1/opam     | 39 ++++++++++++++++++
 packages/gendarme/gendarme.0.4.1/opam              | 37 +++++++++++++++++
 packages/ppx_marshal/ppx_marshal.0.4.1/opam        | 46 ++++++++++++++++++++++
 .../ppx_marshal_ext/ppx_marshal_ext.0.4.1/opam     | 40 +++++++++++++++++++
 9 files changed, 337 insertions(+)
 create mode 100644 packages/gendarme-csv/gendarme-csv.0.4.1/opam
 create mode 100644 packages/gendarme-ezjsonm/gendarme-ezjsonm.0.4.1/opam
 create mode 100644 packages/gendarme-json/gendarme-json.0.4.1/opam
 create mode 100644 packages/gendarme-toml/gendarme-toml.0.4.1/opam
 create mode 100644 packages/gendarme-yaml/gendarme-yaml.0.4.1/opam
 create mode 100644 packages/gendarme-yojson/gendarme-yojson.0.4.1/opam
 create mode 100644 packages/gendarme/gendarme.0.4.1/opam
 create mode 100644 packages/ppx_marshal/ppx_marshal.0.4.1/opam
 create mode 100644 packages/ppx_marshal_ext/ppx_marshal_ext.0.4.1/opam

(from ocaml/opam:debian-13-ocaml-4.12@sha256:981622ba01d0fb8e584f4e7883a3696b8b7843381ded3a7cf8baed165427ce9b)
2026-03-20 14:11.32 ---> using "3b46e56650772a04d6e9095d44f93a8df988651ae72f356b632e83e63eac10f5" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-03-20 14:11.32 ---> using "d5f99c0377e54d4993aea6da1220688647fa22298d4c3ed1c73dbc70a9c8f6af" 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
2026-03-20 14:11.32 ---> using "d9dc42727fff0aca992c8a8921963ef4b8e85147b043b2a600911e2c90203494" from cache

/home/opam: (run (shell "opam option solver=builtin-0install && opam config report"))
Set to 'builtin-0install' the field solver in global configuration
# opam config report
# opam-version         2.5.0
# self-upgrade         no
# system               arch=x86_64 os=linux os-distribution=debian os-version=13
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 71
# repositories         1 (version-controlled)
# pinned               1 (version)
# current-switch       4.12
# invariant            ["ocaml-base-compiler" {= "4.12.1"}]
# compiler-packages    ocaml-base-compiler.4.12.1, ocaml-options-vanilla.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/4.12/lib/ocaml/stublibs:/home/opam/.opam/4.12/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       4.12.1
2026-03-20 14:11.32 ---> using "dcfa8aec37922198a0b60860e7596151a32e6d78d2d04e2b5059b3fdb200f4ee" 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/"))
2026-03-20 14:11.32 ---> using "45a7351952b0d0adf52ed6e8b68ddc6db3801d61b65aba9e5e6fb805de689bbd" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-03-20 14:11.41 ---> saved as "94a8f8090a2a08990506175ab7d38e3b15c8b4900befc21aadbd31aa526dfd24"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-03-20 14:12.00 ---> saved as "633eb48c21d3195a6c8a256cea64019e8fc53ec38a2f730fd0d44101677790c1"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Get:1 http://deb.debian.org/debian trixie InRelease [140 kB]
- 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 trixie/main amd64 Packages [9671 kB]
- Get:5 http://deb.debian.org/debian-security trixie-security/main amd64 Packages [116 kB]
- Fetched 10.0 MB in 1s (7921 kB/s)
- Reading package lists...
- 
2026-03-20 14:12.03 ---> saved as "abf69a56f1e6aa2a4f419d5637d65f64777c59b0b242cc5034e4fc4afd4163da"

/home/opam: (run (shell "opam pin add -k version -yn ppx_marshal.0.4.1 0.4.1"))
ppx_marshal is now pinned to version 0.4.1
2026-03-20 14:12.03 ---> saved as "efbf9bce6df6ffb8162326d887ec05384126685c44b7b4940f2b98e34c3cf3a7"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall ppx_marshal.0.4.1;\
                        \n        res=$?;\
                        \n        test \"$res\" != 31 && exit \"$res\";\
                        \n        export OPAMCLI=2.0;\
                        \n        build_dir=$(opam var prefix)/.opam-switch/build;\
                        \n        failed=$(ls \"$build_dir\");\
                        \n        partial_fails=\"\";\
                        \n        for pkg in $failed; do\
                        \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-13\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'ppx_marshal.0.4.1' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
ppx_marshal.0.4.1 is not installed. Install it? [Y/n] y
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler = 4.12.1
    - ppx_marshal >= 0.4.1 -> ocaml >= 4.13.0 -> ocaml-variants < 4.14.3~
    You can temporarily relax the switch invariant with `--update-invariant'
  * Missing dependency:
    - ppx_marshal >= 0.4.1 -> ocaml >= 4.13.0 -> ocaml-variants < 4.14.3~ -> ocaml-beta
    unmet availability conditions: 'enable-ocaml-beta-repository'
  * Missing dependency:
    - ppx_marshal >= 0.4.1 -> ocaml >= 4.13.0 -> ocaml-variants >= 4.13.0~ -> system-msvc
    unmet availability conditions: 'os = "win32"'

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall ppx_marshal.0.4.1;
        res=$?;
        test "$res" != 31 && exit "$res";
        export OPAMCLI=2.0;
        build_dir=$(opam var prefix)/.opam-switch/build;
        failed=$(ls "$build_dir");
        partial_fails="";
        for pkg in $failed; do
          if opam show -f x-ci-accept-failures: "$pkg" | grep -qF "\"debian-13\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'ppx_marshal.0.4.1' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2026-03-20 14:12.24: Job failed: Failed: Build failed
2026-03-20 14:12.24: Log analysis:
2026-03-20 14:12.24: >>> 
No solution found, exiting
 (score = 100)
2026-03-20 14:12.24: [SKIP] Package not available