(not at the head of any monitored branch or PR)
2025-12-30 15:41.49: New job: test lwt.6.0.0, using opam 2.0
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29147/head (a9c2dfa8be3eba34b7f4bd01fa139b8e6d829c91)
                              on debian-13-ocaml-5.4/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29147/head" && git reset --hard a9c2dfa8
git fetch origin master
git merge --no-edit f2d102f951a5dc2af6db218c6aef53c80186295a
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-5.4@sha256:4b8c7632b913b4384d00bda7a80a6abca052753710bcd7a467ca0372adb1a083
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-2.0 /usr/bin/opam
RUN opam init --reinit -ni
RUN opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam depext -u || true
RUN opam pin add -k version -yn lwt.6.0.0 6.0.0
RUN opam depext lwt.6.0.0 && opam reinstall lwt.6.0.0; \
    res=$?; \
    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-13\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'lwt.6.0.0' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
RUN (opam depext --with-test lwt.6.0.0 && opam reinstall --with-test lwt.6.0.0) || true
RUN opam depext --with-test lwt.6.0.0 && opam reinstall --with-test --verbose lwt.6.0.0; \
    res=$?; \
    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-13\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'lwt.6.0.0' && partial_fails="$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 .

2025-12-30 15:41.49: Using cache hint "ocaml/opam:debian-13-ocaml-5.4@sha256:4b8c7632b913b4384d00bda7a80a6abca052753710bcd7a467ca0372adb1a083-lwt.6.0.0-a9c2dfa8be3eba34b7f4bd01fa139b8e6d829c91"
2025-12-30 15:41.49: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-5.4@sha256:4b8c7632b913b4384d00bda7a80a6abca052753710bcd7a467ca0372adb1a083)
 (user (uid 1000) (gid 1000))
 (workdir /home/opam)
 (run (shell "sudo ln -f /usr/bin/opam-2.0 /usr/bin/opam"))
 (run (network host)
      (shell "opam init --reinit --config .opamrc-sandbox -ni"))
 (run (shell "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 depext -u || true"))
 (run (shell "opam pin add -k version -yn lwt.6.0.0 6.0.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam depext lwt.6.0.0 && opam reinstall lwt.6.0.0;\
             \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-13\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'lwt.6.0.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (run (network host)
      (shell "(opam depext --with-test lwt.6.0.0 && opam reinstall --with-test lwt.6.0.0) || true"))
 (run (shell  "opam depext --with-test lwt.6.0.0 && opam reinstall --with-test --verbose lwt.6.0.0;\
             \n        res=$?;\
             \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-13\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'lwt.6.0.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-12-30 15:41.49: Waiting for resource in pool OCluster
2025-12-30 15:43.11: Waiting for worker…
2025-12-30 15:47.33: Got resource from pool OCluster
Building on asteria.caelum.ci.dev
All commits already cached
HEAD is now at f2d102f951 Merge pull request #29150 from raphael-proust/llvm-20-21-only-cosmetics
Merge made by the 'ort' strategy.
 packages/lwt/lwt.6.0.0/opam                        | 64 ++++++++++++++++++++++
 packages/lwt_direct/lwt_direct.6.0.0/opam          | 41 ++++++++++++++
 packages/lwt_ppx/lwt_ppx.6.0.0/opam                | 46 ++++++++++++++++
 .../lwt_runtime_events.6.0.0/opam                  | 39 +++++++++++++
 4 files changed, 190 insertions(+)
 create mode 100644 packages/lwt/lwt.6.0.0/opam
 create mode 100644 packages/lwt_direct/lwt_direct.6.0.0/opam
 create mode 100644 packages/lwt_ppx/lwt_ppx.6.0.0/opam
 create mode 100644 packages/lwt_runtime_events/lwt_runtime_events.6.0.0/opam

(from ocaml/opam:debian-13-ocaml-5.4@sha256:4b8c7632b913b4384d00bda7a80a6abca052753710bcd7a467ca0372adb1a083)
2025-12-30 15:47.35 ---> using "92a4868cef67203ec83e505d6e143939fe2b26f936d185df29fc7fc62ef6a0b1" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-2.0 /usr/bin/opam"))
2025-12-30 15:47.35 ---> using "30287bdb29170c20fc56e2b30e9e3bd47ea27a374ad5aaaa22721ae91681ab21" from cache

/home/opam: (run (network host)
                 (shell "opam init --reinit --config .opamrc-sandbox -ni"))
[NOTE] Will configure 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.

[WARNING] Recommended dependencies -- most packages rely on these:
  - m4

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
default (at git+file:///home/opam/opam-repository): 
    [INFO] opam 2.1 and 2.2 include many performance and security improvements over 2.0; please consider upgrading (https://opam.ocaml.org/doc/Install.html)

2025-12-30 15:47.35 ---> using "d54535a708019de15e1c3d61343c0c66f2e6903ebdfe568ab6088e49872e4e71" from cache

/home/opam: (run (shell "opam config report"))
# opam config report
# opam-version      2.0.10 (adc1e1829a2bef5b240746df80341b508290fe3b) 
# self-upgrade      no
# system            arch=x86_64 os=linux os-distribution=debian os-version=13
# solver            builtin-mccs+glpk
# install-criteria  -removed,-count[version-lag,request],-count[version-lag,changed],-changed
# upgrade-criteria  -removed,-count[version-lag,solution],-new
# jobs              71
# repositories      1 (version-controlled)
# pinned            1 (version)
# current-switch    5.4
2025-12-30 15:47.35 ---> using "c9981215645041285bb9bf2456468b25165b451c253808c1b12fcdf898aded8c" 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/"))
2025-12-30 15:47.35 ---> using "60ffedf08cc61e316a527441e629c6430b001ed426678273b19bea14dd0caf5d" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2025-12-30 15:48.18 ---> saved as "525f6b80a848639b61d2a8a2e21c5ab63bfe763c4bd7cfc147126c74cd0f3015"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
default (at file:///home/opam/opam-repository): 
    [INFO] opam 2.1 and 2.2 include many performance and security improvements over 2.0; please consider upgrading (https://opam.ocaml.org/doc/Install.html)

2025-12-30 15:48.29 ---> saved as "37cbab321eae296a3eb4c5da42454defb2d8d270f1651c0c8a4ab4772fbf1de2"

/home/opam: (run (network host)
                 (shell "opam depext -u || true"))
# Detecting depexts using vars: arch=x86_64, os=linux, os-distribution=debian, os-family=debian
# No extra OS packages requirements found.
# All required OS packages found.
The following command needs to be run through "sudo":
    apt-get update
Hit:1 http://deb.debian.org/debian trixie InRelease
Get:2 http://deb.debian.org/debian trixie-updates InRelease [47.3 kB]
Get:3 http://deb.debian.org/debian-security trixie-security InRelease [43.4 kB]
Fetched 90.7 kB in 0s (1019 kB/s)
Reading package lists...
# OS package update successful
2025-12-30 15:48.32 ---> saved as "11e37385b3546daf7c06b468b108793aa7a48a0b2531f4e77d9e6d9742b0d3e3"

/home/opam: (run (shell "opam pin add -k version -yn lwt.6.0.0 6.0.0"))
lwt is now pinned to version 6.0.0
2025-12-30 15:48.32 ---> saved as "109b1fc2ef1cb56f4104fa9ccd0a340b54483d032948197c439db9528cf8d924"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam depext lwt.6.0.0 && opam reinstall lwt.6.0.0;\
                        \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-13\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'lwt.6.0.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
# Detecting depexts using vars: arch=x86_64, os=linux, os-distribution=debian, os-family=debian
# No extra OS packages requirements found.
# All required OS packages found.
lwt.6.0.0 is not installed. Install it? [Y/n] y
The following actions will be performed:
  - install ocamlfind         1.9.8  [required by base-bytes]
  - install dune              3.20.2 [required by lwt]
  - install base-bytes        base   [required by ocplib-endian]
  - install csexp             1.5.2  [required by dune-configurator]
  - install cppo              1.8.0  [required by lwt]
  - install dune-configurator 3.20.2 [required by lwt]
  - install ocplib-endian     1.2    [required by lwt]
  - install lwt               6.0.0*
===== 8 to install =====

<><> Gathering sources ><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
[cppo.1.8.0] found in cache
[csexp.1.5.2] found in cache
[dune.3.20.2] found in cache
[dune-configurator.3.20.2] found in cache
[lwt.6.0.0] found in cache
[ocamlfind.1.9.8] found in cache
[ocplib-endian.1.2] found in cache

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> 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
Done.
# Run eval $(opam env) to update the current shell environment
2025-12-30 15:49.07 ---> saved as "791f001b75250b6e70aca6d5c71d7b695053d03f142ab756c69293c53016ed5c"

/home/opam: (run (network host)
                 (shell "(opam depext --with-test lwt.6.0.0 && opam reinstall --with-test lwt.6.0.0) || true"))
# Detecting depexts using vars: arch=x86_64, os=linux, os-distribution=debian, os-family=debian
# No extra OS packages requirements found.
# All required OS packages found.
The following actions will be performed:
  - recompile lwt 6.0.0*

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> removed   lwt.6.0.0
-> installed lwt.6.0.0
Done.
# Run eval $(opam env) to update the current shell environment
2025-12-30 15:49.25 ---> saved as "38c60ada7fa17017b52325c10027da135de53f9a8b1ef3211b7927085faa2931"

/home/opam: (run (shell  "opam depext --with-test lwt.6.0.0 && opam reinstall --with-test --verbose lwt.6.0.0;\
                        \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-13\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'lwt.6.0.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
# Detecting depexts using vars: arch=x86_64, os=linux, os-distribution=debian, os-family=debian
# No extra OS packages requirements found.
# All required OS packages found.
The following actions will be performed:
  - recompile lwt 6.0.0*

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Processing  1/3: [lwt: dune exec]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "dune" "exec" "-p" "lwt" "src/unix/config/discover.exe" "--" "--save" "--use-libev" "false" (CWD=/home/opam/.opam/5.4/.opam-switch/build/lwt.6.0.0)
Processing  1/3: [lwt: dune build]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "dune" "build" "-p" "lwt" "-j" "71" "@install" "@runtest" (CWD=/home/opam/.opam/5.4/.opam-switch/build/lwt.6.0.0)
- (cd _build/default/test/core && ./main.exe)
- Testing library 'core'...
- ...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................SSSSSSSSSSSSSSSSSSSSSSS..................................................................................................................................................
- Ok. 705 tests ran, 23 tests skipped in 0.14 seconds
- (cd _build/default/test/unix && ./main.exe)
- Testing library 'unix'...
- .................................SSSSS..............................................................................................................SSSS...................................................................................
- Ok. 226 tests ran, 9 tests skipped in 6.30 seconds
-> compiled  lwt.6.0.0
-> removed   lwt.6.0.0
-> installed lwt.6.0.0
Done.
# Run eval $(opam env) to update the current shell environment
2025-12-30 15:49.44 ---> saved as "8f1a6f0113a0d792c9c1374d68dc0c169d57ece376715165210c09dd7e4f0f05"
Job succeeded
2025-12-30 15:50.39: Job succeeded