(for PR #29367)

2026-02-10 16:19.32: 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 archlinux-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29367/head" && git reset --hard 41132ad3
git fetch origin master
git merge --no-edit 6a35634d6446e6151b438792d64cc32db88a1a2e
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:archlinux-ocaml-4.14@sha256:cfaec26140ae0517535ea22d32799529245f9a9b78c99d1c2cbe0eeb2899076a
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn multipart_form-miou.0.8.0 0.8.0
RUN opam reinstall multipart_form-miou.0.8.0; \
    res=$?; \
    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 "\"archlinux\""; 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 16:19.32: Using cache hint "ocaml/opam:archlinux-ocaml-4.14@sha256:cfaec26140ae0517535ea22d32799529245f9a9b78c99d1c2cbe0eeb2899076a-multipart_form-miou.0.8.0-41132ad3bb08c1323eb53af67d50a84e89be1763"
2026-02-10 16:19.32: Using OBuilder spec:
((from ocaml/opam:archlinux-ocaml-4.14@sha256:cfaec26140ae0517535ea22d32799529245f9a9b78c99d1c2cbe0eeb2899076a)
 (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 \"\\\"archlinux\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'multipart_form-miou.0.8.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-02-10 16:19.32: Waiting for resource in pool OCluster
2026-02-10 19:13.14: Waiting for worker…
2026-02-10 19:16.12: Got resource from pool OCluster
Building on toxis.caelum.ci.dev
All commits already cached
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:archlinux-ocaml-4.14@sha256:cfaec26140ae0517535ea22d32799529245f9a9b78c99d1c2cbe0eeb2899076a)
2026-02-10 19:16.55 ---> saved as "c043fd2183a05c9c1d761c4761dd45580040f454618a74edd550da91b4a79011"

/: (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 19:16.56 ---> saved as "33faa56bbe98a25a3cb743c87d785258a277717262821013bb95bf5acd957c1f"

/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 19:17.25 ---> saved as "f74870a91df07214f153d3f71fdf8c0495dd284063b9a03ae3443a25944290b3"

/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=arch os-version=20260201.0.486523
# 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       4.14
# 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
2026-02-10 19:17.25 ---> saved as "58282d684292ff39bcbb34730e0a9e08462ff49afbcb208d233c0e1569f95c87"

/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 19:17.36 ---> saved as "6e7233fe6bbd0d6d94719f4491d5ac008432898170a8fc76226acd9fdf243653"

/home/opam: (copy (src .) (dst opam-repository/))
2026-02-10 19:17.49 ---> saved as "e47475612463a67657d94e1937f0058e825ec5b662c8c174e155d80b05146555"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-02-10 19:18.13 ---> saved as "c8de9c007829fbfbc1d74a2f4fa251e38bd5f3bc0ed6731358748877c7a70431"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/sbin/sudo "pacman" "-Sy"
- :: Synchronizing package databases...
-  core downloading...
-  extra downloading...
2026-02-10 19:18.13 ---> saved as "b1b0d1ec5a8246927afeb3b211f59de6abc8f2933f5c74a281b53fe42d14de6c"

/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 19:18.14 ---> saved as "209ea2b3e20a7ad540fa20f7b75e2f781980226244e9d778dc120861dc45097a"

/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 \"\\\"archlinux\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'multipart_form-miou.0.8.0' && partial_fails=\"$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 = 4.14.2 → ocaml = 4.14.2
    - multipart_form-miou >= 0.8.0 → miou → ocaml >= 5.0.0
    You can temporarily relax the switch invariant with `--update-invariant'
  * Incompatible packages:
    - (invariant) → ocaml-base-compiler = 4.14.2
    - multipart_form-miou >= 0.8.0 → miou → ocaml >= 5.0.0 → ocaml-variants >= 5.0.0~
  * Missing dependency:
    - multipart_form-miou >= 0.8.0 → miou → ocaml >= 5.0.0 → ocaml-variants >= 5.0.0~ → system-msvc
    unmet availability conditions: 'os = "win32"'

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 "\"archlinux\""; 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 19:18.35: Job failed: Failed: Build failed
2026-02-10 19:18.35: Log analysis:
2026-02-10 19:18.35: >>> 
No solution found, exiting
 (score = 100)
2026-02-10 19:18.35: [SKIP] Package not available