(not at the head of any monitored branch or PR)
2025-11-10 11:00.33: New job: test lwt_direct.6.0.0~beta00, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/28558/head (db50ce02bd0238ef1431a20de40a98e9f360a8c0)
                              on ubuntu-25.10-ocaml-5.4/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/28558/head" && git reset --hard db50ce02
git fetch origin master
git merge --no-edit 21f97b2e6d7c617fc0a79cc8e59b2e10690960e1
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:ubuntu-25.10-ocaml-5.4@sha256:df9fd54e17aff270bd763b5c05771b4c62ec07734289be0f4b2f65897ffade4b
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn lwt_direct.6.0.0~beta00 6.0.0~beta00
RUN opam reinstall lwt_direct.6.0.0~beta00; \
    res=$?; \
    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-25.10\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'lwt_direct.6.0.0~beta00' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
RUN (opam reinstall --with-test lwt_direct.6.0.0~beta00) || true
RUN opam reinstall --with-test --verbose lwt_direct.6.0.0~beta00; \
    res=$?; \
    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-25.10\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'lwt_direct.6.0.0~beta00' && partial_fails="$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 11:00.33: Using cache hint "ocaml/opam:ubuntu-25.10-ocaml-5.4@sha256:df9fd54e17aff270bd763b5c05771b4c62ec07734289be0f4b2f65897ffade4b-lwt_direct.6.0.0~beta00-db50ce02bd0238ef1431a20de40a98e9f360a8c0"
2025-11-10 11:00.33: Using OBuilder spec:
((from ocaml/opam:ubuntu-25.10-ocaml-5.4@sha256:df9fd54e17aff270bd763b5c05771b4c62ec07734289be0f4b2f65897ffade4b)
 (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_direct.6.0.0~beta00 6.0.0~beta00"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall lwt_direct.6.0.0~beta00;\
             \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-25.10\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'lwt_direct.6.0.0~beta00' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (run (network host)
      (shell "(opam reinstall --with-test lwt_direct.6.0.0~beta00) || true"))
 (run (shell  "opam reinstall --with-test --verbose lwt_direct.6.0.0~beta00;\
             \n        res=$?;\
             \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-25.10\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'lwt_direct.6.0.0~beta00' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-11-10 11:00.33: Waiting for resource in pool OCluster
2025-11-10 11:23.51: Waiting for worker…
2025-11-10 11:28.51: Got resource from pool OCluster
Building on bremusa.ocamllabs.io
All commits already cached
HEAD is now at 21f97b2e6d Merge pull request #28836 from dbuenzli/b0-publish-bytesrw.0.3.0
Merge made by the 'ort' strategy.
 packages/lwt/lwt.6.0.0~beta00/opam               | 67 ++++++++++++++++++++++++
 packages/lwt_direct/lwt_direct.6.0.0~beta00/opam | 42 +++++++++++++++
 2 files changed, 109 insertions(+)
 create mode 100644 packages/lwt/lwt.6.0.0~beta00/opam
 create mode 100644 packages/lwt_direct/lwt_direct.6.0.0~beta00/opam

(from ocaml/opam:ubuntu-25.10-ocaml-5.4@sha256:df9fd54e17aff270bd763b5c05771b4c62ec07734289be0f4b2f65897ffade4b)
Unable to find image 'ocaml/opam:ubuntu-25.10-ocaml-5.4@sha256:df9fd54e17aff270bd763b5c05771b4c62ec07734289be0f4b2f65897ffade4b' locally
docker.io/ocaml/opam@sha256:df9fd54e17aff270bd763b5c05771b4c62ec07734289be0f4b2f65897ffade4b: Pulling from ocaml/opam
4ba5fadb0f62: Pulling fs layer
4ba5fadb0f62: Verifying Checksum
4ba5fadb0f62: Download complete
4ba5fadb0f62: Pull complete
Digest: sha256:df9fd54e17aff270bd763b5c05771b4c62ec07734289be0f4b2f65897ffade4b
Status: Downloaded newer image for ocaml/opam@sha256:df9fd54e17aff270bd763b5c05771b4c62ec07734289be0f4b2f65897ffade4b
2025-11-10 11:32.07 ---> using "cba44b7f579eadd5084e3d3c448c59ec37e4eddcc4339d29605b4a05a0d1dd8f" 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 11:32.07 ---> using "c83360af0d34b66a138bc246b8fb64d02fa73705bed99bacf127c7ba150fa928" 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 11:32.07 ---> using "8281e43c1f03b7d96ba87f41daed6d9d7dc74c42d621ba340e5a45f871894e6e" 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=ubuntu os-version=25.10
# 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
2025-11-10 11:32.07 ---> using "82f1a073e74dadfd3e84b128b1fb6867f3c92aee713983caf662146fb634e9c6" 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 11:32.07 ---> using "be2748a9520c054be5184e73c97e618ebd46239a09bca523fc3b2e97a5f5508e" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2025-11-10 11:32.09 ---> saved as "6da222fcd50c6d54abf6f6c3706d0c46992d7263588786724e87e01a097e35fd"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-11-10 11:32.31 ---> saved as "5e3b5ce5b1c61f2ce8bdf1157d5f2ff45877234e5fbc1d557105213f59b5dcdc"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Hit:1 http://archive.ubuntu.com/ubuntu questing InRelease
- Get:2 http://security.ubuntu.com/ubuntu questing-security InRelease [136 kB]
- Get:3 http://archive.ubuntu.com/ubuntu questing-updates InRelease [136 kB]
- Get:4 http://archive.ubuntu.com/ubuntu questing-backports InRelease [133 kB]
- Get:5 http://archive.ubuntu.com/ubuntu questing-updates/universe amd64 Packages [56.8 kB]
- Get:6 http://archive.ubuntu.com/ubuntu questing-updates/main amd64 Packages [138 kB]
- Fetched 599 kB in 1s (840 kB/s)
- Reading package lists...
- 
2025-11-10 11:32.33 ---> saved as "64c424cdcae01a46cab6710235fba6fd083e77e7ced3391ff4f4f40528d41b92"

/home/opam: (run (shell "opam pin add -k version -yn lwt_direct.6.0.0~beta00 6.0.0~beta00"))
lwt_direct is now pinned to version 6.0.0~beta00
2025-11-10 11:32.34 ---> saved as "40cd286e1df7e50178e376964ecbb00305e9013107cd435751978eecd60d544e"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall lwt_direct.6.0.0~beta00;\
                        \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-25.10\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'lwt_direct.6.0.0~beta00' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
lwt_direct.6.0.0~beta00 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 10 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              3.20.2                [required by lwt_direct]
  - install dune-configurator 3.20.2                [required by lwt]
  - install lwt               6.0.0~beta00          [required by lwt_direct]
  - install lwt_direct        6.0.0~beta00 (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.3.20.2, dune-configurator.3.20.2  (cached)
-> retrieved lwt.6.0.0~beta00, lwt_direct.6.0.0~beta00  (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 domain_shims.0.1.0
-> 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~beta00
-> installed lwt_direct.6.0.0~beta00
Done.
# To update the current shell environment, run: eval $(opam env)
2025-11-10 11:33.17 ---> saved as "eae78a6279d960179e125ba4affa45a30066107ddb29480d977ba45515abba48"

/home/opam: (run (network host)
                 (shell "(opam reinstall --with-test lwt_direct.6.0.0~beta00) || true"))
The following actions will be performed:
=== recompile 1 package
  - recompile lwt_direct 6.0.0~beta00 (pinned)

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> removed   lwt_direct.6.0.0~beta00
-> installed lwt_direct.6.0.0~beta00
Done.
# To update the current shell environment, run: eval $(opam env)
2025-11-10 11:33.24 ---> saved as "15fc4c038e12cc82cbc7d6b07ddff595a73ffc3d1f0d5bdc7718f861fb9af1f8"

/home/opam: (run (shell  "opam reinstall --with-test --verbose lwt_direct.6.0.0~beta00;\
                        \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-25.10\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'lwt_direct.6.0.0~beta00' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
The following actions will be performed:
=== recompile 1 package
  - recompile lwt_direct 6.0.0~beta00 (pinned)

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Processing  2/4: [lwt_direct: dune build]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "dune" "build" "-p" "lwt_direct" "-j" "71" "@install" "@runtest" (CWD=/home/opam/.opam/5.4/.opam-switch/build/lwt_direct.6.0.0~beta00)
- (cd _build/default/test/multidomain && ./unixpipe.exe)
- unixpipe: ✓
- (cd _build/default/test/multidomain && ./preempting.exe)
- preempting: ✓
- (cd _build/default/test/multidomain && ./movingpromises.exe)
- moving-promises: ✓
- (cd _build/default/test/multidomain && ./basic.exe)
- basic: ✓
- (cd _build/default/test/direct && ./main.exe)
- Testing library 'lwt_direct'...
- .............
- Ok. 13 tests ran, 0 tests skipped in 0.00 seconds
- (cd _build/default/test/multidomain && ./domainworkers.exe)
- domain-workers: ✓
-> compiled  lwt_direct.6.0.0~beta00
-> removed   lwt_direct.6.0.0~beta00
-> installed lwt_direct.6.0.0~beta00
Done.
# To update the current shell environment, run: eval $(opam env)
2025-11-10 11:33.30 ---> saved as "55200af1c5739460129d44ee0b111732fa546c750c9626576b8ac2f91301cbbe"
Job succeeded
2025-11-10 11:33.37: Job succeeded