(for PR #28894)

2025-11-14 14:52.17: New job: build lwt.6.0.0-beta01, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/28894/head (b3a6ad64ea3115b9993ddd431f777dde4e6ec63f)
                              on ubuntu-25.04-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/28894/head" && git reset --hard b3a6ad64
git fetch origin master
git merge --no-edit 2ec6d6cc9216d1f4ec93aec16f34d7a35a7ef543
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:ubuntu-25.04-ocaml-4.14@sha256:4ed0788e72767d189a80bf0684c9675ee2f2643af13b1fc34449afdcb6fcd742
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn lwt.6.0.0-beta01 6.0.0-beta01
RUN opam reinstall lwt.6.0.0-beta01; \
    res=$?; \
    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 "\"ubuntu-25.04\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'lwt.6.0.0-beta01' && partial_fails="$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 .

2025-11-14 14:52.17: Using cache hint "ocaml/opam:ubuntu-25.04-ocaml-4.14@sha256:4ed0788e72767d189a80bf0684c9675ee2f2643af13b1fc34449afdcb6fcd742-lwt.6.0.0-beta01-b3a6ad64ea3115b9993ddd431f777dde4e6ec63f"
2025-11-14 14:52.17: Using OBuilder spec:
((from ocaml/opam:ubuntu-25.04-ocaml-4.14@sha256:4ed0788e72767d189a80bf0684c9675ee2f2643af13b1fc34449afdcb6fcd742)
 (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 lwt.6.0.0-beta01 6.0.0-beta01"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall lwt.6.0.0-beta01;\
             \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 \"\\\"ubuntu-25.04\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'lwt.6.0.0-beta01' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-11-14 14:52.17: Waiting for resource in pool OCluster
2025-11-14 14:58.01: Waiting for worker…
2025-11-14 15:02.57: Got resource from pool OCluster
Building on bremusa.ocamllabs.io
All commits already cached
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HEAD is now at 2ec6d6cc92 Merge pull request #28891 from c-cube/release-moonpool-v0.10
Updating 2ec6d6cc92..b3a6ad64ea
Fast-forward
 packages/lwt/lwt.6.0.0-beta01/opam                 | 66 ++++++++++++++++++++++
 packages/lwt_direct/lwt_direct.6.0.0-beta01/opam   | 42 ++++++++++++++
 packages/lwt_ppx/lwt_ppx.6.0.0-beta01/opam         | 43 ++++++++++++++
 .../lwt_runtime_events.6.0.0-beta01/opam           | 40 +++++++++++++
 4 files changed, 191 insertions(+)
 create mode 100644 packages/lwt/lwt.6.0.0-beta01/opam
 create mode 100644 packages/lwt_direct/lwt_direct.6.0.0-beta01/opam
 create mode 100644 packages/lwt_ppx/lwt_ppx.6.0.0-beta01/opam
 create mode 100644 packages/lwt_runtime_events/lwt_runtime_events.6.0.0-beta01/opam

(from ocaml/opam:ubuntu-25.04-ocaml-4.14@sha256:4ed0788e72767d189a80bf0684c9675ee2f2643af13b1fc34449afdcb6fcd742)
2025-11-14 15:03.17 ---> saved as "931c53c567ab267a6851ea1fedd8eb69c2f2cff67d11e398f6c78ec08b426f6c"

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2025-11-14 15:03.18 ---> saved as "e7fa641eb72c529cd42f374c27b8637c67d2524549f876bfcfe2a086d8822313"

/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
2025-11-14 15:03.56 ---> saved as "d52423502dffb185c91a7f067cb6d747dc9e4b3fa2076087ed7979912bca1008"

/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=ubuntu os-version=25.04
# 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
2025-11-14 15:03.57 ---> saved as "cd165a63ec69eff1d3ef1996d43c31675db805c79d227effb28f9c0424a2ad9f"

/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/"))
2025-11-14 15:04.10 ---> saved as "65351dfde350da9886cb2549b353d1aa5169a98937d30cc22a0cc6a411969eac"

/home/opam: (copy (src .) (dst opam-repository/))
2025-11-14 15:04.26 ---> saved as "22f0096cd773857c77d681fa71830509b2ac6a86f9db94c41adea2b6436a88cb"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-11-14 15:04.51 ---> saved as "235b5d08d9a2b353c38f2c9d80c66591cb7c39e4d7af02c1d964fe37f74afad3"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Hit:1 http://archive.ubuntu.com/ubuntu plucky InRelease
- Get:2 http://archive.ubuntu.com/ubuntu plucky-updates InRelease [126 kB]
- Get:3 http://archive.ubuntu.com/ubuntu plucky-backports InRelease [126 kB]
- Get:4 http://archive.ubuntu.com/ubuntu plucky-updates/universe amd64 Packages [313 kB]
- Get:5 http://security.ubuntu.com/ubuntu plucky-security InRelease [126 kB]
- Get:6 http://archive.ubuntu.com/ubuntu plucky-updates/main amd64 Packages [520 kB]
- Get:7 http://security.ubuntu.com/ubuntu plucky-security/main amd64 Packages [362 kB]
- Fetched 1575 kB in 1s (2258 kB/s)
- Reading package lists...
- 
2025-11-14 15:04.54 ---> saved as "f4a85a4fd2c4f139b60fba6f2dd4b21dff5dd2349f0dcf8b955701f339b983ad"

/home/opam: (run (shell "opam pin add -k version -yn lwt.6.0.0-beta01 6.0.0-beta01"))
lwt is now pinned to version 6.0.0-beta01
2025-11-14 15:04.55 ---> saved as "0530715a236f741620b159d461892f7080ac104c0be70b59f517ca27bcfbf433"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall lwt.6.0.0-beta01;\
                        \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 \"\\\"ubuntu-25.04\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'lwt.6.0.0-beta01' && partial_fails=\"$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-beta01 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 8 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 dune              3.20.2                [required by lwt]
  - install dune-configurator 3.20.2                [required by lwt]
  - install lwt               6.0.0-beta01 (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 dune.3.20.2, dune-configurator.3.20.2  (cached)
-> retrieved lwt.6.0.0-beta01  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved ocplib-endian.1.2  (cached)
-> installed ocamlfind.1.9.8
-> installed base-bytes.base
-> installed dune.3.20.2
-> installed csexp.1.5.2
-> installed cppo.1.8.0
-> installed ocplib-endian.1.2
-> installed dune-configurator.3.20.2
-> installed lwt.6.0.0-beta01
Done.
# To update the current shell environment, run: eval $(opam env)
2025-11-14 15:05.41 ---> saved as "230054614e3656d8b5d49d302921cd0395af3db38860380139afeb9710c031ea"
Job succeeded
2025-11-14 15:06.19: Job succeeded