(not at the head of any monitored branch or PR)
2026-02-04 13:20.41: New job: build lwt_ppx.6.0.0~beta01, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29336/head (3513e0876097dd74e6a34c4d690c9d4e2b9fa1d8)
                              on debian-13-ocaml-4.12/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29336/head" && git reset --hard 3513e087
git fetch origin master
git merge --no-edit 45c04602c2fc908af6d1b17ba39c7517d58cb274
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.12@sha256:5e8dae8a1ec619c5dfb072122f8a680fa74d51001383d3b5e29a790f4a4f3e21
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn lwt_ppx.6.0.0~beta01 6.0.0~beta01
RUN opam reinstall lwt_ppx.6.0.0~beta01; \
    res=$?; \
    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 "\"debian-13\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'lwt_ppx.6.0.0~beta01' && partial_fails="$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:debian-13-ocaml-4.12@sha256:5e8dae8a1ec619c5dfb072122f8a680fa74d51001383d3b5e29a790f4a4f3e21-lwt_ppx.6.0.0~beta01-3513e0876097dd74e6a34c4d690c9d4e2b9fa1d8"
2026-02-04 13:20.41: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.12@sha256:5e8dae8a1ec619c5dfb072122f8a680fa74d51001383d3b5e29a790f4a4f3e21)
 (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_ppx.6.0.0~beta01 6.0.0~beta01"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall lwt_ppx.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 \"\\\"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 \"$pkg\" != 'lwt_ppx.6.0.0~beta01' && partial_fails=\"$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 13:23.55: Got resource from pool OCluster
Building on eumache
All commits already cached
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:debian-13-ocaml-4.12@sha256:5e8dae8a1ec619c5dfb072122f8a680fa74d51001383d3b5e29a790f4a4f3e21)
Unable to find image 'ocaml/opam:debian-13-ocaml-4.12@sha256:5e8dae8a1ec619c5dfb072122f8a680fa74d51001383d3b5e29a790f4a4f3e21' locally
docker.io/ocaml/opam@sha256:5e8dae8a1ec619c5dfb072122f8a680fa74d51001383d3b5e29a790f4a4f3e21: Pulling from ocaml/opam
b8135707c8e6: Already exists
Digest: sha256:5e8dae8a1ec619c5dfb072122f8a680fa74d51001383d3b5e29a790f4a4f3e21
Status: Downloaded newer image for ocaml/opam@sha256:5e8dae8a1ec619c5dfb072122f8a680fa74d51001383d3b5e29a790f4a4f3e21
2026-02-04 13:24.38 ---> saved as "b86b62c3ea0aee7eb792854a2a2ce78c88ddca74dd17a9bd1631557ecdd7a15d"

/: (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 13:24.39 ---> saved as "fbbe0aeb1437fd7e7d642a49978464eb2c3c5a3be9ab56b6d9a973f4a730739a"

/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 13:25.09 ---> saved as "e3f1e73374d969dcb09287bd6522a05a8f7f6f47fae49bdf52c6cf1371526c85"

/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=debian os-version=13
# 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       4.12
# invariant            ["ocaml-base-compiler" {= "4.12.1"}]
# compiler-packages    ocaml-base-compiler.4.12.1, ocaml-options-vanilla.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/4.12/lib/ocaml/stublibs:/home/opam/.opam/4.12/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       4.12.1
2026-02-04 13:25.10 ---> saved as "2f85764ddad8d59bdc4c79ec3fea346dd408d26da4a078ec4a6d1ab261f96b24"

/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 13:25.17 ---> saved as "8cc675c67b15b788f072c6610a974f19b23eb96dfba61c2398b91beae51c9996"

/home/opam: (copy (src .) (dst opam-repository/))
2026-02-04 13:25.43 ---> saved as "42c554aa0008864ca08d06f41b00111d3238fc05f0a1f838fcdc08570feae9d7"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-02-04 13:26.05 ---> saved as "f1144f4ca308f24ff07678afbcd533a979325193dd0637abc7fc961fcad12db7"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/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]
- Get:4 http://deb.debian.org/debian-security trixie-security/main amd64 Packages [98.8 kB]
- Fetched 190 kB in 0s (1940 kB/s)
- Reading package lists...
2026-02-04 13:26.07 ---> saved as "df1a4333f45ac79c07fb5cb434668c035f7eedcf9d7e5299e9d3ad26bf281ad1"

/home/opam: (run (shell "opam pin add -k version -yn lwt_ppx.6.0.0~beta01 6.0.0~beta01"))
lwt_ppx is now pinned to version 6.0.0~beta01
2026-02-04 13:26.08 ---> saved as "47ff930445ad97e1a702fd3ada53083344558743f872fdc70df8b7f4d73438b7"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall lwt_ppx.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 \"\\\"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 \"$pkg\" != 'lwt_ppx.6.0.0~beta01' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
lwt_ppx.6.0.0~beta01 is not installed. Install it? [Y/n] y
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler = 4.12.1
    - lwt_ppx = 6.0.0~beta01 -> lwt = 6.0.0~beta01 -> ocaml >= 4.14 -> ocaml-variants < 5.6.1~
    You can temporarily relax the switch invariant with `--update-invariant'
  * Missing dependency:
    - lwt_ppx = 6.0.0~beta01 -> lwt = 6.0.0~beta01 -> ocaml >= 4.14 -> ocaml-variants < 4.14.1~ -> ocaml-beta
    unmet availability conditions: 'enable-ocaml-beta-repository'
  * Missing dependency:
    - lwt_ppx = 6.0.0~beta01 -> lwt = 6.0.0~beta01 -> ocaml >= 4.14 -> ocaml-variants < 5.2.1~ -> system-msvc
    unmet availability conditions: 'os = "win32"'

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall lwt_ppx.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 "\"debian-13\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'lwt_ppx.6.0.0~beta01' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2026-02-04 13:26.44: Job failed: Failed: Build failed
2026-02-04 13:26.44: Log analysis:
2026-02-04 13:26.44: >>> 
No solution found, exiting
 (score = 100)
2026-02-04 13:26.44: [SKIP] Package not available