(not at the head of any monitored branch or PR)
2026-02-04 13:20.41: New job: build lwt.6.0.0~beta01, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29336/head (3513e0876097dd74e6a34c4d690c9d4e2b9fa1d8)
                              on ubuntu-22.04-ocaml-5.4/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29336/head" && git reset --hard 3513e087
git fetch origin master
git merge --no-edit 45c04602c2fc908af6d1b17ba39c7517d58cb274
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:69fc5e86df13d6ed5bb8d2081b73ba0d6ba5eecf6d111f909bab3789781176f9
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn lwt.6.0.0~beta01 6.0.0~beta01
RUN opam reinstall lwt.6.0.0~beta01; \
    res=$?; \
    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-22.04\""; 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 .

2026-02-04 13:20.41: Using cache hint "ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:69fc5e86df13d6ed5bb8d2081b73ba0d6ba5eecf6d111f909bab3789781176f9-lwt.6.0.0~beta01-3513e0876097dd74e6a34c4d690c9d4e2b9fa1d8"
2026-02-04 13:20.41: Using OBuilder spec:
((from ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:69fc5e86df13d6ed5bb8d2081b73ba0d6ba5eecf6d111f909bab3789781176f9)
 (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-22.04\\\"\"; 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"))
)

2026-02-04 13:20.41: Waiting for resource in pool OCluster
2026-02-04 13:20.43: Waiting for worker…
2026-02-04 13:27.49: Got resource from pool OCluster
Building on clete
All commits already cached
Updating files:  60% (11610/19337)
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Updating files: 100% (19337/19337), done.
HEAD is now at 45c04602c2 Merge pull request #29332 from fpottier/master
Updating 45c04602c2..3513e08760
Fast-forward
 packages/lwt/{lwt.6.0.0-beta01 => lwt.6.0.0~beta01}/opam                  | 0
 .../lwt_direct/{lwt_direct.6.0.0-beta01 => lwt_direct.6.0.0~beta01}/opam  | 0
 packages/lwt_ppx/{lwt_ppx.6.0.0-beta01 => lwt_ppx.6.0.0~beta01}/opam      | 0
 .../opam                                                                  | 0
 4 files changed, 0 insertions(+), 0 deletions(-)
 rename packages/lwt/{lwt.6.0.0-beta01 => lwt.6.0.0~beta01}/opam (100%)
 rename packages/lwt_direct/{lwt_direct.6.0.0-beta01 => lwt_direct.6.0.0~beta01}/opam (100%)
 rename packages/lwt_ppx/{lwt_ppx.6.0.0-beta01 => lwt_ppx.6.0.0~beta01}/opam (100%)
 rename packages/lwt_runtime_events/{lwt_runtime_events.6.0.0-beta01 => lwt_runtime_events.6.0.0~beta01}/opam (100%)

(from ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:69fc5e86df13d6ed5bb8d2081b73ba0d6ba5eecf6d111f909bab3789781176f9)
2026-02-04 13:28.30 ---> saved as "7a838f2a96dffe3b7085c53be0590020b90012cf991157b9dbf46ec9a2826d1d"

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-02-04 13:28.30 ---> saved as "575c555ee7fc7bb69eb188382411d718ecc38e27902ced7ed8ad1abdcc0cce05"

/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
2026-02-04 13:29.04 ---> saved as "d8c2290ba9d0600d19f8f8ee150a51478dd1049824b8e6e89fe7d34066bd1cf1"

/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=ubuntu os-version=22.04
# 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       5.4
# invariant            ["ocaml-base-compiler" {>= "5.4.0"}]
# compiler-packages    ocaml-base-compiler.5.4.0, ocaml-compiler.5.4.0, ocaml-options-vanilla.1
# 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
2026-02-04 13:29.10 ---> saved as "98f41382715b9ad3b438f37b0e9e7a46bb5880c5c61f92be1b62fe3fcc359834"

/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/"))
2026-02-04 13:29.24 ---> saved as "5055cd9908e94eaa5e592f65707d2b39b3c97ff7b271d20c900f4f8ee582e0d2"

/home/opam: (copy (src .) (dst opam-repository/))
2026-02-04 13:30.07 ---> saved as "a93356fd5100bf5ac1a9f92015ab01d508eab82a32d99193ac5f01710deaf02e"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-02-04 13:30.33 ---> saved as "0badab026283c78afff7b8d1329a9c36d6ace760f24db09ffc21a57aa4dfa0ab"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Get:1 http://security.ubuntu.com/ubuntu jammy-security InRelease [129 kB]
- Get:2 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages [3640 kB]
- Get:3 http://security.ubuntu.com/ubuntu jammy-security/universe amd64 Packages [1296 kB]
- Hit:4 http://archive.ubuntu.com/ubuntu jammy InRelease
- Get:5 http://archive.ubuntu.com/ubuntu jammy-updates InRelease [128 kB]
- Get:6 http://archive.ubuntu.com/ubuntu jammy-backports InRelease [127 kB]
- Get:7 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages [4009 kB]
- Get:8 http://archive.ubuntu.com/ubuntu jammy-updates/restricted amd64 Packages [6597 kB]
- Get:9 http://archive.ubuntu.com/ubuntu jammy-updates/universe amd64 Packages [1608 kB]
- Fetched 17.5 MB in 2s (9489 kB/s)
- Reading package lists...
- 
2026-02-04 13:30.37 ---> saved as "527b3eb7e7d958d86ac92ebbefb58d196b480c7487c07f11bd3473f3f8a79b75"

/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
2026-02-04 13:30.38 ---> saved as "544a4d8af84c80e31c9efbe47a2c9120ad0d718a8952047a27d70d695b5416e9"

/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-22.04\\\"\"; 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              3.21.0                [required by lwt]
  - install dune-configurator 3.21.0                [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.3.21.0, dune-configurator.3.21.0  (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.3.21.0
-> installed csexp.1.5.2
-> installed cppo.1.8.0
-> installed ocplib-endian.1.2
-> installed dune-configurator.3.21.0
-> installed lwt.6.0.0~beta01
Done.
# To update the current shell environment, run: eval $(opam env)
2026-02-04 13:32.00 ---> saved as "0b36b7ee19f3148fb6f3fd5ed68b18b609205132bbb65a2dfbd35c9a3c2253ac"
Job succeeded
2026-02-04 13:32.15: Job succeeded