(for PR #28827)

2025-11-10 16:57.21: New job: build nx-datasets.1.0.0~alpha2, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/28827/head (3adacbc6aba2762d0750bc10bb58285f6b461c46)
                              on debian-unstable-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/28827/head" && git reset --hard 3adacbc6
git fetch origin master
git merge --no-edit b6a264c784afa1e19f7a926fc10d49010ad12be4
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-unstable-ocaml-4.14@sha256:64011eba82742ae17970e88ad3db2cb1d29c318b147a4bb5f58c6399636a9334
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn nx-datasets.1.0.0~alpha2 1.0.0~alpha2
RUN opam reinstall nx-datasets.1.0.0~alpha2; \
    res=$?; \
    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-unstable\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'nx-datasets.1.0.0~alpha2' && partial_fails="$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 .

2025-11-10 16:57.21: Using cache hint "ocaml/opam:debian-unstable-ocaml-4.14@sha256:64011eba82742ae17970e88ad3db2cb1d29c318b147a4bb5f58c6399636a9334-nx-datasets.1.0.0~alpha2-3adacbc6aba2762d0750bc10bb58285f6b461c46"
2025-11-10 16:57.21: Using OBuilder spec:
((from ocaml/opam:debian-unstable-ocaml-4.14@sha256:64011eba82742ae17970e88ad3db2cb1d29c318b147a4bb5f58c6399636a9334)
 (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 nx-datasets.1.0.0~alpha2 1.0.0~alpha2"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall nx-datasets.1.0.0~alpha2;\
             \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-unstable\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'nx-datasets.1.0.0~alpha2' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-11-10 16:57.21: Waiting for resource in pool OCluster
2025-11-10 22:22.36: Waiting for worker…
2025-11-10 22:26.23: Got resource from pool OCluster
Building on clete
All commits already cached
Updating files:  67% (12680/18716)
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Updating files: 100% (18716/18716), done.
HEAD is now at b6a264c784 Merge pull request #28853 from AltGr/catala100
Merge made by the 'ort' strategy.
 packages/fehu/fehu.1.0.0~alpha2/opam               | 49 +++++++++++++++
 packages/hugin/hugin.1.0.0~alpha2/opam             | 49 +++++++++++++++
 packages/kaun/kaun.1.0.0~alpha2/opam               | 50 ++++++++++++++++
 packages/nx-datasets/nx-datasets.1.0.0~alpha2/opam | 54 +++++++++++++++++
 packages/nx/nx.1.0.0~alpha2/opam                   | 65 ++++++++++++++++++++
 packages/quill/quill.1.0.0~alpha2/opam             | 70 ++++++++++++++++++++++
 packages/raven/raven.1.0.0~alpha2/opam             | 53 ++++++++++++++++
 packages/rune/rune.1.0.0~alpha2/opam               | 56 +++++++++++++++++
 packages/saga/saga.1.0.0~alpha2/opam               | 49 +++++++++++++++
 packages/sowilo/sowilo.1.0.0~alpha2/opam           | 47 +++++++++++++++
 packages/talon/talon.1.0.0~alpha2/opam             | 48 +++++++++++++++
 11 files changed, 590 insertions(+)
 create mode 100644 packages/fehu/fehu.1.0.0~alpha2/opam
 create mode 100644 packages/hugin/hugin.1.0.0~alpha2/opam
 create mode 100644 packages/kaun/kaun.1.0.0~alpha2/opam
 create mode 100644 packages/nx-datasets/nx-datasets.1.0.0~alpha2/opam
 create mode 100644 packages/nx/nx.1.0.0~alpha2/opam
 create mode 100644 packages/quill/quill.1.0.0~alpha2/opam
 create mode 100644 packages/raven/raven.1.0.0~alpha2/opam
 create mode 100644 packages/rune/rune.1.0.0~alpha2/opam
 create mode 100644 packages/saga/saga.1.0.0~alpha2/opam
 create mode 100644 packages/sowilo/sowilo.1.0.0~alpha2/opam
 create mode 100644 packages/talon/talon.1.0.0~alpha2/opam

(from ocaml/opam:debian-unstable-ocaml-4.14@sha256:64011eba82742ae17970e88ad3db2cb1d29c318b147a4bb5f58c6399636a9334)
2025-11-10 22:26.33 ---> using "94e5437b4c7e4c41f79cbd95d98d19d9f8bb8e63c2b4d82a85606acff482f828" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2025-11-10 22:26.33 ---> using "07d87605accab45c00e4d41cc96a2d9fd1bffac0b92d875de481b92f22a33044" 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
2025-11-10 22:26.33 ---> using "28c5def5605531349b39b66b3a35422a04195072308b2e07e10f722d8b014c0f" 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~alpha1
# self-upgrade         no
# system               arch=x86_64 os=linux os-distribution=debian os-version=unknown
# 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
2025-11-10 22:26.33 ---> using "1c0d2e0cc6d4bdd62888515e9ad8e95b8947802aaa4727d58e12dec024bf10b0" 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/"))
2025-11-10 22:26.33 ---> using "2d4df8428de2224a44b3b6169f63756da11e7f5d1905bddeec1e5d4f9980001a" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2025-11-10 22:26.34 ---> using "a390eaa8606a49b87ebdab469b3910dcf32a15f9def2a229a1d3fc12c10876fc" from cache

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-11-10 22:26.54 ---> saved as "56410403942d60f1e4ec404eb60cca01ba619062ef8d2e20d04bf01f5f642052"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Get:1 http://deb.debian.org/debian unstable InRelease [176 kB]
- Get:2 http://deb.debian.org/debian unstable/main amd64 Packages.diff/Index [63.6 kB]
- Get:3 http://deb.debian.org/debian unstable/main amd64 Packages T-2025-11-10-2007.45-F-2025-11-08-0809.16.pdiff [147 kB]
- Get:3 http://deb.debian.org/debian unstable/main amd64 Packages T-2025-11-10-2007.45-F-2025-11-08-0809.16.pdiff [147 kB]
- Fetched 387 kB in 4s (91.0 kB/s)
- Reading package lists...
- 
2025-11-10 22:27.00 ---> saved as "03d4c210a1bb1ec1a3e9e66e56e44f69525cb0b5bd24cb297f64f67a48e82d4e"

/home/opam: (run (shell "opam pin add -k version -yn nx-datasets.1.0.0~alpha2 1.0.0~alpha2"))
nx-datasets is now pinned to version 1.0.0~alpha2
2025-11-10 22:27.02 ---> saved as "90ad96d589bc00fb760884ec67dbb42cb8b61e39709fda3b37522721439b4cff"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall nx-datasets.1.0.0~alpha2;\
                        \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-unstable\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'nx-datasets.1.0.0~alpha2' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
nx-datasets.1.0.0~alpha2 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
    - nx-datasets >= 1.0.0~alpha2 -> ocaml >= 5.3.0
    You can temporarily relax the switch invariant with `--update-invariant'
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler = 4.14.2
    - nx-datasets >= 1.0.0~alpha2 -> ocaml >= 5.3.0 -> ocaml-variants >= 5.3.0~

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall nx-datasets.1.0.0~alpha2;
        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-unstable\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'nx-datasets.1.0.0~alpha2' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2025-11-10 22:27.45: Job failed: Failed: Build failed
2025-11-10 22:27.45: Log analysis:
2025-11-10 22:27.45: >>> 
No solution found, exiting
 (score = 100)
2025-11-10 22:27.45: [SKIP] Package not available