(not at the head of any monitored branch or PR)
2025-12-04 13:33.59: New job: build lwt_ppx.6.0.0-beta01, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/28894/head (547bbce588bc6d9231ad2bd9c8b2b3930b2d061a)
                              on debian-13-ocaml-4.08/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/28894/head" && git reset --hard 547bbce5
git fetch origin master
git merge --no-edit 3e41859015888fe8240e84dfc5f31bfa12a557e8
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.08@sha256:b0b3231bcad019916e02a316e563912fcb67c4cb7d7d6f69361b7dd609c5e3da
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn lwt_ppx.6.0.0-beta01 6.0.0-beta01
RUN opam reinstall lwt_ppx.6.0.0-beta01; \
    res=$?; \
    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 .

2025-12-04 13:33.59: Using cache hint "ocaml/opam:debian-13-ocaml-4.08@sha256:b0b3231bcad019916e02a316e563912fcb67c4cb7d7d6f69361b7dd609c5e3da-lwt_ppx.6.0.0-beta01-547bbce588bc6d9231ad2bd9c8b2b3930b2d061a"
2025-12-04 13:33.59: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.08@sha256:b0b3231bcad019916e02a316e563912fcb67c4cb7d7d6f69361b7dd609c5e3da)
 (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"))
)

2025-12-04 13:33.59: Waiting for resource in pool OCluster
2025-12-04 13:34.05: Waiting for worker…
2025-12-04 13:34.05: Got resource from pool OCluster
Building on laodoke.caelum.ci.dev
All commits already cached
HEAD is now at 3e41859015 Merge pull request #28903 from jim-portegies/opam-publish-coq-waterproof.3.1.0-9.1
Merge made by the 'ort' strategy.
 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.1.0.0/opam                |  2 +-
 packages/lwt_ppx/lwt_ppx.1.0.1/opam                |  2 +-
 packages/lwt_ppx/lwt_ppx.1.1.0/opam                |  2 +-
 packages/lwt_ppx/lwt_ppx.1.2.0/opam                |  2 +-
 packages/lwt_ppx/lwt_ppx.1.2.1/opam                |  2 +-
 packages/lwt_ppx/lwt_ppx.1.2.2/opam                |  2 +-
 packages/lwt_ppx/lwt_ppx.1.2.3/opam                |  2 +-
 packages/lwt_ppx/lwt_ppx.1.2.4/opam                |  2 +-
 packages/lwt_ppx/lwt_ppx.2.0.0/opam                |  2 +-
 packages/lwt_ppx/lwt_ppx.2.0.1/opam                |  2 +-
 packages/lwt_ppx/lwt_ppx.2.0.2/opam                |  2 +-
 packages/lwt_ppx/lwt_ppx.2.0.3/opam                |  2 +-
 packages/lwt_ppx/lwt_ppx.2.1.0/opam                |  2 +-
 packages/lwt_ppx/lwt_ppx.5.8.0/opam                |  2 +-
 packages/lwt_ppx/lwt_ppx.5.9.1/opam                |  2 +-
 packages/lwt_ppx/lwt_ppx.5.9.2/opam                |  2 +-
 packages/lwt_ppx/lwt_ppx.6.0.0-beta01/opam         | 43 ++++++++++++++
 .../lwt_runtime_events.6.0.0-beta01/opam           | 40 +++++++++++++
 packages/moonpool-lwt/moonpool-lwt.0.10/opam       |  2 +-
 packages/moonpool-lwt/moonpool-lwt.0.9/opam        |  2 +-
 packages/tezt/tezt.2.0.0/opam                      |  2 +-
 packages/tezt/tezt.3.0.0/opam                      |  2 +-
 packages/tezt/tezt.4.3.0/opam                      |  2 +-
 25 files changed, 212 insertions(+), 21 deletions(-)
 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:debian-13-ocaml-4.08@sha256:b0b3231bcad019916e02a316e563912fcb67c4cb7d7d6f69361b7dd609c5e3da)
2025-12-04 13:34.14 ---> using "4de342f276ebb80de919705ff2b8905f7348fbd3d7e708ead40980def589303d" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2025-12-04 13:34.14 ---> using "0b58182eacfc46575ba75c29ada09dc42f4bac5c00c1e0bb334a8f9d70cbac2f" 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
2025-12-04 13:34.14 ---> using "1775ec2a067a273e2cde473fd415b806ef5f1b58260ef4c7a48ea7b3227cc640" 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
# 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       4.08
# invariant            ["ocaml-base-compiler" {= "4.08.1"}]
# compiler-packages    ocaml-base-compiler.4.08.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/4.08/lib/ocaml/stublibs:/home/opam/.opam/4.08/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       4.08.1
2025-12-04 13:34.14 ---> using "2abda6f3b914555a99fb648395e31472cb2fd3156d977a07d4a4f73f8ef48db3" 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/"))
2025-12-04 13:34.14 ---> using "3e6597df01c3cee964465265bb45e0c6b64f4bf2f5a0d35f359f033c672edc04" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2025-12-04 13:34.19 ---> saved as "6c5632c784920ef797a16b8cb394622569cf676024df931c8f2ddd61a7c37917"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-12-04 13:34.36 ---> saved as "12712f7eceeb1f95ce0fbf813466a5a39693140364a08f3ed2f5f735ef6e8010"

/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 [80.9 kB]
- Fetched 172 kB in 0s (1732 kB/s)
- Reading package lists...
2025-12-04 13:34.38 ---> saved as "7e3a9204718c999bef0d2efe3a88815535834265886b672c7b94a0e70be3a624"

/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
2025-12-04 13:34.38 ---> saved as "737ba1fa21e09e8627150d33d2e2cba52f5517120833497fb28d897ddde270de"

/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 = 4.08.1
    - lwt_ppx >= 6.0.0-beta01 -> lwt >= 6.0.0-beta01 -> ocaml >= 4.14 -> ocaml-variants < 4.14.1~
    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 >= 4.14.2~ -> 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
2025-12-04 13:34.54: Job failed: Failed: Build failed
2025-12-04 13:34.54: Log analysis:
2025-12-04 13:34.54: >>> 
No solution found, exiting
 (score = 100)
2025-12-04 13:34.54: [SKIP] Package not available