(for PR #29096)

2025-12-15 02:50.51: New job: build dune.3.21.0~alpha4, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29096/head (7d6af52f05e2c06c00193b2918193b6994ece701)
                              on debian-13-ocaml-5.4-no-flat-float-array/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29096/head" && git reset --hard 7d6af52f
git fetch origin master
git merge --no-edit 2625e9877b44d517ad87b5bf4ff708f3e44b78d8
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-5.4-no-flat-float-array@sha256:b73356f66afac0a8848ab5921d15fe14697e66b7bdd33fa3ead495283456d934
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn dune.3.21.0~alpha4 3.21.0~alpha4
RUN opam reinstall dune.3.21.0~alpha4; \
    res=$?; \
    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 "$pkg" != 'dune.3.21.0~alpha4' && partial_fails="$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 .

2025-12-15 02:50.51: Using cache hint "ocaml/opam:debian-13-ocaml-5.4-no-flat-float-array@sha256:b73356f66afac0a8848ab5921d15fe14697e66b7bdd33fa3ead495283456d934-dune.3.21.0~alpha4-7d6af52f05e2c06c00193b2918193b6994ece701"
2025-12-15 02:50.51: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-5.4-no-flat-float-array@sha256:b73356f66afac0a8848ab5921d15fe14697e66b7bdd33fa3ead495283456d934)
 (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 dune.3.21.0~alpha4 3.21.0~alpha4"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall dune.3.21.0~alpha4;\
             \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 \"$pkg\" != 'dune.3.21.0~alpha4' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-12-15 02:50.51: Waiting for resource in pool OCluster
2025-12-15 03:11.55: Waiting for worker…
2025-12-15 03:14.59: Got resource from pool OCluster
Building on bremusa.ocamllabs.io
All commits already cached
Updating files:  96% (18378/19031)
Updating files:  97% (18461/19031)
Updating files:  98% (18651/19031)
Updating files:  99% (18841/19031)
Updating files: 100% (19031/19031)
Updating files: 100% (19031/19031), done.
HEAD is now at 2625e9877b Merge pull request #29094 from anmonteiro/patch-9
Updating 2625e9877b..7d6af52f05
Fast-forward
 .../chrome-trace/chrome-trace.3.21.0~alpha4/opam   | 41 ++++++++++++
 .../dune-action-plugin.3.21.0~alpha4/opam          | 54 ++++++++++++++++
 .../dune-build-info.3.21.0~alpha4/opam             | 47 ++++++++++++++
 .../dune-configurator.3.21.0~alpha4/opam           | 51 +++++++++++++++
 packages/dune-glob/dune-glob.3.21.0~alpha4/opam    | 44 +++++++++++++
 .../dune-private-libs.3.21.0~alpha4/opam           | 52 +++++++++++++++
 .../dune-rpc-lwt/dune-rpc-lwt.3.21.0~alpha4/opam   | 43 +++++++++++++
 packages/dune-rpc/dune-rpc.3.21.0~alpha4/opam      | 46 +++++++++++++
 packages/dune-site/dune-site.3.21.0~alpha4/opam    | 39 +++++++++++
 packages/dune/dune.3.21.0~alpha4/opam              | 75 ++++++++++++++++++++++
 packages/dyn/dyn.3.21.0~alpha4/opam                | 42 ++++++++++++
 packages/fs-io/fs-io.3.21.0~alpha4/opam            | 41 ++++++++++++
 packages/ocamlc-loc/ocamlc-loc.3.21.0~alpha4/opam  | 45 +++++++++++++
 packages/ordering/ordering.3.21.0~alpha4/opam      | 40 ++++++++++++
 packages/stdune/stdune.3.21.0~alpha4/opam          | 48 ++++++++++++++
 .../top-closure/top-closure.3.21.0~alpha4/opam     | 40 ++++++++++++
 packages/xdg/xdg.3.21.0~alpha4/opam                | 41 ++++++++++++
 17 files changed, 789 insertions(+)
 create mode 100644 packages/chrome-trace/chrome-trace.3.21.0~alpha4/opam
 create mode 100644 packages/dune-action-plugin/dune-action-plugin.3.21.0~alpha4/opam
 create mode 100644 packages/dune-build-info/dune-build-info.3.21.0~alpha4/opam
 create mode 100644 packages/dune-configurator/dune-configurator.3.21.0~alpha4/opam
 create mode 100644 packages/dune-glob/dune-glob.3.21.0~alpha4/opam
 create mode 100644 packages/dune-private-libs/dune-private-libs.3.21.0~alpha4/opam
 create mode 100644 packages/dune-rpc-lwt/dune-rpc-lwt.3.21.0~alpha4/opam
 create mode 100644 packages/dune-rpc/dune-rpc.3.21.0~alpha4/opam
 create mode 100644 packages/dune-site/dune-site.3.21.0~alpha4/opam
 create mode 100644 packages/dune/dune.3.21.0~alpha4/opam
 create mode 100644 packages/dyn/dyn.3.21.0~alpha4/opam
 create mode 100644 packages/fs-io/fs-io.3.21.0~alpha4/opam
 create mode 100644 packages/ocamlc-loc/ocamlc-loc.3.21.0~alpha4/opam
 create mode 100644 packages/ordering/ordering.3.21.0~alpha4/opam
 create mode 100644 packages/stdune/stdune.3.21.0~alpha4/opam
 create mode 100644 packages/top-closure/top-closure.3.21.0~alpha4/opam
 create mode 100644 packages/xdg/xdg.3.21.0~alpha4/opam

(from ocaml/opam:debian-13-ocaml-5.4-no-flat-float-array@sha256:b73356f66afac0a8848ab5921d15fe14697e66b7bdd33fa3ead495283456d934)
2025-12-15 03:15.15 ---> saved as "d10a826857a90a47734168684556de1d11d1ff99ac8b1c467e77b4b0404e4cda"

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2025-12-15 03:15.16 ---> saved as "1c9370c1b8e0959d63eac2ed7f59f9a76ea4555bfdb59a4caedf3d748b3da7ec"

/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
2025-12-15 03:15.41 ---> saved as "707b699eb5d88769cee52534a9c0c47926a128dfb2b35a1e75e80766618a8cdf"

/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       5.4
# invariant            ["ocaml-variants" {= "5.4.0+options"}]
# compiler-packages    ocaml-compiler.5.4.0, ocaml-option-no-flat-float-array.1, ocaml-options-only-no-flat-float-array.1, ocaml-variants.5.4.0+options
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/5.4/lib/ocaml/stublibs:/home/opam/.opam/5.4/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       5.4.0+options+no-flat-float-array
2025-12-15 03:15.42 ---> saved as "ac5e1321f0837d3045742c1df0fab7c5e327d88056a19f625bfa216c525b4502"

/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/"))
2025-12-15 03:15.53 ---> saved as "8ee6da0ab633ee152d1c18776412083c275eb31553e9d8901924417a2062814a"

/home/opam: (copy (src .) (dst opam-repository/))
2025-12-15 03:16.07 ---> saved as "46f3a31d1bfca920b16b3ff9cae758f881ff88634c80a912ff6182e247f83770"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-12-15 03:16.36 ---> saved as "efff7d0248cca0513cdc09caa7c6261668ba1eb2a2d54021eb42ee48cf20a4ca"

/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 [84.8 kB]
- Fetched 176 kB in 0s (1062 kB/s)
- Reading package lists...
- 
2025-12-15 03:16.39 ---> saved as "3fe450511f35687541d7706295dac6856f6dab62758fee439251390fd996b8d3"

/home/opam: (run (shell "opam pin add -k version -yn dune.3.21.0~alpha4 3.21.0~alpha4"))
dune is now pinned to version 3.21.0~alpha4
2025-12-15 03:16.41 ---> saved as "b917e0e36c00f4efb099cc2f5ceb003455f6a490586ce6843f0f36e6813a5689"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall dune.3.21.0~alpha4;\
                        \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 \"$pkg\" != 'dune.3.21.0~alpha4' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
dune.3.21.0~alpha4 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 1 package
  - install dune 3.21.0~alpha4 (pinned)

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved dune.3.21.0~alpha4  (cached)
-> installed dune.3.21.0~alpha4
Done.
# To update the current shell environment, run: eval $(opam env)
2025-12-15 03:17.24 ---> saved as "7d695e63c74e4375818117d423edfe41509ce49a830ca32c8883fd35c55601c7"
Job succeeded
2025-12-15 03:17.52: Job succeeded