(for PR #28222)

2025-07-22 12:16.02: New job: build lwt.6.0.0~alpha01, using opam 2.3
                              from https://github.com/ocaml/opam-repository.git#refs/pull/28222/head (381d421c95f23c7e41d7bd80fe4ee0fa7b4fca2f)
                              on debian-12-ocaml-5.3-no-flat-float-array/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/28222/head" && git reset --hard 381d421c
git fetch origin master
git merge --no-edit 14fd69dba01fe02a6cbf63a81a67897e0f52cbfc
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-12-ocaml-5.3-no-flat-float-array@sha256:a19f45ad58d306e42a31ef4f7ee3f199066d8ce0c0c1ea4525eaf75c67ba7e85
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-2.3 /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn lwt.6.0.0~alpha01 6.0.0~alpha01
RUN opam reinstall lwt.6.0.0~alpha01; \
    res=$?; \
    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-12\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'lwt.6.0.0~alpha01' && partial_fails="$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 .

2025-07-22 12:16.02: Using cache hint "ocaml/opam:debian-12-ocaml-5.3-no-flat-float-array@sha256:a19f45ad58d306e42a31ef4f7ee3f199066d8ce0c0c1ea4525eaf75c67ba7e85-lwt.6.0.0~alpha01-381d421c95f23c7e41d7bd80fe4ee0fa7b4fca2f"
2025-07-22 12:16.02: Using OBuilder spec:
((from ocaml/opam:debian-12-ocaml-5.3-no-flat-float-array@sha256:a19f45ad58d306e42a31ef4f7ee3f199066d8ce0c0c1ea4525eaf75c67ba7e85)
 (user (uid 1000) (gid 1000))
 (workdir /home/opam)
 (run (shell "sudo ln -f /usr/bin/opam-2.3 /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 lwt.6.0.0~alpha01 6.0.0~alpha01"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall lwt.6.0.0~alpha01;\
             \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-12\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'lwt.6.0.0~alpha01' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-07-22 12:16.02: Waiting for resource in pool OCluster
2025-07-22 12:20.52: Waiting for worker…
2025-07-22 12:22.15: Got resource from pool OCluster
Building on toxis.caelum.ci.dev
All commits already cached
HEAD is now at 14fd69dba0 Merge pull request #28217 from sim642/opam-state-2.4-upper-bounds
Updating 14fd69dba0..381d421c95
Fast-forward
 packages/lwt/lwt.6.0.0~alpha01/opam               | 69 +++++++++++++++++++++++
 packages/lwt_direct/lwt_direct.6.0.0~alpha01/opam | 44 +++++++++++++++
 packages/lwt_log/lwt_log.1.1.0/opam               |  2 +-
 packages/lwt_log/lwt_log.1.1.1/opam               |  2 +-
 packages/lwt_log/lwt_log.1.1.2/opam               |  2 +-
 5 files changed, 116 insertions(+), 3 deletions(-)
 create mode 100644 packages/lwt/lwt.6.0.0~alpha01/opam
 create mode 100644 packages/lwt_direct/lwt_direct.6.0.0~alpha01/opam

(from ocaml/opam:debian-12-ocaml-5.3-no-flat-float-array@sha256:a19f45ad58d306e42a31ef4f7ee3f199066d8ce0c0c1ea4525eaf75c67ba7e85)
Unable to find image 'ocaml/opam:debian-12-ocaml-5.3-no-flat-float-array@sha256:a19f45ad58d306e42a31ef4f7ee3f199066d8ce0c0c1ea4525eaf75c67ba7e85' locally
docker.io/ocaml/opam@sha256:a19f45ad58d306e42a31ef4f7ee3f199066d8ce0c0c1ea4525eaf75c67ba7e85: Pulling from ocaml/opam
04e8ce332f68: Already exists
80079ffd89ec: Pulling fs layer
d3ea1f4f549b: Pulling fs layer
20ee60505911: Pulling fs layer
ee2bdb2275d3: Pulling fs layer
03841f5f474e: Pulling fs layer
722d1e7d1443: Pulling fs layer
1109a23d9908: Pulling fs layer
ee2bdb2275d3: Waiting
03841f5f474e: Waiting
d3ea1f4f549b: Verifying Checksum
d3ea1f4f549b: Download complete
80079ffd89ec: Verifying Checksum
80079ffd89ec: Download complete
20ee60505911: Verifying Checksum
20ee60505911: Download complete
80079ffd89ec: Pull complete
d3ea1f4f549b: Pull complete
20ee60505911: Pull complete
03841f5f474e: Verifying Checksum
03841f5f474e: Download complete
722d1e7d1443: Verifying Checksum
722d1e7d1443: Download complete
1109a23d9908: Verifying Checksum
1109a23d9908: Download complete
ee2bdb2275d3: Verifying Checksum
ee2bdb2275d3: Download complete
ee2bdb2275d3: Pull complete
03841f5f474e: Pull complete
722d1e7d1443: Pull complete
1109a23d9908: Pull complete
Digest: sha256:a19f45ad58d306e42a31ef4f7ee3f199066d8ce0c0c1ea4525eaf75c67ba7e85
Status: Downloaded newer image for ocaml/opam@sha256:a19f45ad58d306e42a31ef4f7ee3f199066d8ce0c0c1ea4525eaf75c67ba7e85
2025-07-22 12:22.46 ---> saved as "8ae49aa97725fa8cdce0741f7e2d39a17e8ed10376a494c89c5b23df65ccf62e"

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-2.3 /usr/bin/opam"))
2025-07-22 12:22.46 ---> saved as "cc9ee057f15e994a375f423fe3795a29e913a63824dfb4d041963c726ab297d9"

/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 development 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
2025-07-22 12:23.12 ---> saved as "80cc80cb687d8d520f7ff9518407a96cf53924ea5c45893464faa48c3c820ad8"

/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         2.3.0 (35acd0c5abc5e66cdbd5be16ba77aa6c33a4c724)
# self-upgrade         no
# system               arch=x86_64 os=linux os-distribution=debian os-version=12
# 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       5.3
# invariant            ["ocaml-variants" {= "5.3.0+options"}]
# compiler-packages    ocaml-compiler.5.3.0, ocaml-option-no-flat-float-array.1, ocaml-options-only-no-flat-float-array.1, ocaml-variants.5.3.0+options
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/5.3/lib/ocaml/stublibs:/home/opam/.opam/5.3/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       5.3.0+options+no-flat-float-array
2025-07-22 12:23.13 ---> saved as "8d7917f9a55fd013f0b166e96dd6fc6e12ea75212537411e3b171b594f4a693b"

/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/"))
2025-07-22 12:23.24 ---> saved as "1e524565993586918d44fdb4fa42ca7278f9f9fc3677d764b55b35201d08f5c0"

/home/opam: (copy (src .) (dst opam-repository/))
2025-07-22 12:23.33 ---> saved as "6fdb306d26cc17e7fb16b22de31c3d0ac37adbdef5fdf1a4497a4f07d131ffdb"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-07-22 12:23.55 ---> saved as "08743ae8a658fcdb258a4f2314632fde427e0de78872ad51847ab82585c6fa84"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Hit:1 http://deb.debian.org/debian bookworm InRelease
- Get:2 http://deb.debian.org/debian bookworm-updates InRelease [55.4 kB]
- Get:3 http://deb.debian.org/debian-security bookworm-security InRelease [48.0 kB]
- Fetched 103 kB in 0s (374 kB/s)
- Reading package lists...
- 
2025-07-22 12:23.56 ---> saved as "ad757fdc925a580a52c0f411052c8708d192f8aeea1f45223b300c9bdbfc8545"

/home/opam: (run (shell "opam pin add -k version -yn lwt.6.0.0~alpha01 6.0.0~alpha01"))
lwt is now pinned to version 6.0.0~alpha01
2025-07-22 12:23.57 ---> saved as "44590e93a72e03569dbe25cdce8d9a2d1019f5c684f8f73e0ec880b98eb2dd41"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall lwt.6.0.0~alpha01;\
                        \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-12\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'lwt.6.0.0~alpha01' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
lwt.6.0.0~alpha01 is not installed. Install it? [y/n] y
The following actions will be performed:
=== install 9 packages
  - install base-bytes        base                   [required by ocplib-endian]
  - install cppo              1.8.0                  [required by lwt]
  - install csexp             1.5.2                  [required by dune-configurator]
  - install domain_shims      0.1.0                  [required by lwt]
  - install dune              3.19.1                 [required by lwt]
  - install dune-configurator 3.19.1                 [required by lwt]
  - install lwt               6.0.0~alpha01 (pinned)
  - install ocamlfind         1.9.8                  [required by base-bytes]
  - install ocplib-endian     1.2                    [required by lwt]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved cppo.1.8.0  (cached)
-> retrieved csexp.1.5.2  (cached)
-> retrieved domain_shims.0.1.0  (cached)
-> retrieved dune.3.19.1, dune-configurator.3.19.1  (cached)
-> retrieved lwt.6.0.0~alpha01  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved ocplib-endian.1.2  (cached)
-> installed ocamlfind.1.9.8
-> installed base-bytes.base
-> installed dune.3.19.1
-> installed domain_shims.0.1.0
-> installed csexp.1.5.2
-> installed cppo.1.8.0
-> installed ocplib-endian.1.2
-> installed dune-configurator.3.19.1
-> installed lwt.6.0.0~alpha01
Done.
# To update the current shell environment, run: eval $(opam env)
2025-07-22 12:24.42 ---> saved as "a77209ff5e8fd2f7e5b5ef5dc0e0ed780c3ff4f085f879fc1aa7db754c356ad1"
Job succeeded
2025-07-22 12:24.52: Job succeeded