(for PR #29367)

2026-02-10 16:19.30: New job: build multipart_form-miou.0.8.0, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29367/head (41132ad3bb08c1323eb53af67d50a84e89be1763)
                              on debian-13-ocaml-4.12/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29367/head" && git reset --hard 41132ad3
git fetch origin master
git merge --no-edit 6a35634d6446e6151b438792d64cc32db88a1a2e
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.12@sha256:31d9dbede0f78d56760049fd006989ebb3dcc8591cf393c369d27567889941f7
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn multipart_form-miou.0.8.0 0.8.0
RUN opam reinstall multipart_form-miou.0.8.0; \
    res=$?; \
    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 "$pkg" != 'multipart_form-miou.0.8.0' && partial_fails="$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 .

2026-02-10 16:19.30: Using cache hint "ocaml/opam:debian-13-ocaml-4.12@sha256:31d9dbede0f78d56760049fd006989ebb3dcc8591cf393c369d27567889941f7-multipart_form-miou.0.8.0-41132ad3bb08c1323eb53af67d50a84e89be1763"
2026-02-10 16:19.30: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.12@sha256:31d9dbede0f78d56760049fd006989ebb3dcc8591cf393c369d27567889941f7)
 (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 multipart_form-miou.0.8.0 0.8.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall multipart_form-miou.0.8.0;\
             \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 \"$pkg\" != 'multipart_form-miou.0.8.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-02-10 16:19.30: Waiting for resource in pool OCluster
2026-02-10 19:05.43: Waiting for worker…
2026-02-10 19:09.59: Got resource from pool OCluster
Building on laodoke.caelum.ci.dev
All commits already cached
Updating files:  99% (18103/18158)
Updating files: 100% (18158/18158)
Updating files: 100% (18158/18158), done.
HEAD is now at 6a35634d64 Merge pull request #29363 from hannesm/maint-none-feb-2026
Merge made by the 'ort' strategy.
 .../multipart_form-cohttp-lwt.0.8.0/opam           | 29 ++++++++++++++
 .../multipart_form-eio.0.8.0/opam                  | 42 +++++++++++++++++++++
 .../multipart_form-lwt.0.8.0/opam                  | 42 +++++++++++++++++++++
 .../multipart_form-miou.0.8.0/opam                 | 42 +++++++++++++++++++++
 packages/multipart_form/multipart_form.0.8.0/opam  | 44 ++++++++++++++++++++++
 5 files changed, 199 insertions(+)
 create mode 100644 packages/multipart_form-cohttp-lwt/multipart_form-cohttp-lwt.0.8.0/opam
 create mode 100644 packages/multipart_form-eio/multipart_form-eio.0.8.0/opam
 create mode 100644 packages/multipart_form-lwt/multipart_form-lwt.0.8.0/opam
 create mode 100644 packages/multipart_form-miou/multipart_form-miou.0.8.0/opam
 create mode 100644 packages/multipart_form/multipart_form.0.8.0/opam

(from ocaml/opam:debian-13-ocaml-4.12@sha256:31d9dbede0f78d56760049fd006989ebb3dcc8591cf393c369d27567889941f7)
2026-02-10 19:11.14 ---> saved as "4d1d68efb85067cf7a79fa9007242e66e40b48ace5a5648cd96317ff96a438e1"

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-02-10 19:11.14 ---> saved as "b6f28c6069908bce8e13bab6f927192a22b8f5e6a69528b6b6c36746cf80b70c"

/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
2026-02-10 19:11.57 ---> saved as "28097c99b5107d8735b678513d829fe46718b273eb9404715544a01b9664dc05"

/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
2026-02-10 19:11.58 ---> saved as "8a7f565f4673feb434a7e3203bd066633e0c319b27e0789a60ddecbf19faad4c"

/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/"))
2026-02-10 19:12.09 ---> saved as "14687a0050b18d2ede4fd8d505fa3a5f71594688db8906167376038714b69b68"

/home/opam: (copy (src .) (dst opam-repository/))
2026-02-10 19:12.22 ---> saved as "27d221b21d39fd76abf373222c8c5d99c6ae92cc0228a21641725aa3dfef0bd3"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-02-10 19:12.47 ---> saved as "b4d308e6fcf71c0158416c925f1586f51b0295be278f2fabaac3bad14356a594"

/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 [104 kB]
- Fetched 195 kB in 0s (1187 kB/s)
- Reading package lists...
- 
2026-02-10 19:12.49 ---> saved as "4b90430a5a87e28e0b70f0a23a5fedcb6e6161df5b5f5e3b1740f46c61047f44"

/home/opam: (run (shell "opam pin add -k version -yn multipart_form-miou.0.8.0 0.8.0"))
multipart_form-miou is now pinned to version 0.8.0
2026-02-10 19:12.50 ---> saved as "c7d0dcaa8f057463455e54ca10c1a9a1bb10edf39203e49a5357f3b411522a9c"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall multipart_form-miou.0.8.0;\
                        \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 \"$pkg\" != 'multipart_form-miou.0.8.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
multipart_form-miou.0.8.0 is not installed. Install it? [Y/n] y
  * No agreement on the version of ocaml:
    - (invariant) -> ocaml-base-compiler = 4.12.1 -> ocaml = 4.12.1
    - multipart_form-miou >= 0.8.0 -> miou -> ocaml >= 5.0.0
    You can temporarily relax the switch invariant with `--update-invariant'

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall multipart_form-miou.0.8.0;
        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 "$pkg" != 'multipart_form-miou.0.8.0' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2026-02-10 19:13.20: Job failed: Failed: Build failed
2026-02-10 19:13.20: Log analysis:
2026-02-10 19:13.20: >>> 
No solution found, exiting
 (score = 100)
2026-02-10 19:13.20: [SKIP] Package not available