(for PR #28222)

2025-08-21 14:13.40: New job: build lwt.6.0.0~alpha01, using opam 2.0
                              from https://github.com/ocaml/opam-repository.git#refs/pull/28222/head (a14b2680809606d7e55ae7ed410b73438cb77bd0)
                              on debian-12-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/28222/head" && git reset --hard a14b2680
git fetch origin master
git merge --no-edit 4bae7ec4df49df4454ea492c8d7a1196aeae04e0
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-12-ocaml-4.14@sha256:30169b3ce5a84172c049cfc64621b66e9a02a7b0431076f872278354c85107fe
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-2.0 /usr/bin/opam
RUN opam init --reinit -ni
RUN opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam depext -u || true
RUN opam pin add -k version -yn lwt.6.0.0~alpha01 6.0.0~alpha01
RUN opam depext lwt.6.0.0~alpha01 && opam reinstall lwt.6.0.0~alpha01; \
    res=$?; \
    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-12\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'lwt.6.0.0~alpha01' && partial_fails="$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 .

2025-08-21 14:13.40: Using cache hint "ocaml/opam:debian-12-ocaml-4.14@sha256:30169b3ce5a84172c049cfc64621b66e9a02a7b0431076f872278354c85107fe-lwt.6.0.0~alpha01-a14b2680809606d7e55ae7ed410b73438cb77bd0"
2025-08-21 14:13.40: Using OBuilder spec:
((from ocaml/opam:debian-12-ocaml-4.14@sha256:30169b3ce5a84172c049cfc64621b66e9a02a7b0431076f872278354c85107fe)
 (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~alpha01 6.0.0~alpha01"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam depext lwt.6.0.0~alpha01 && opam reinstall lwt.6.0.0~alpha01;\
             \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-12\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'lwt.6.0.0~alpha01' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-08-21 14:13.40: Waiting for resource in pool OCluster
2025-08-21 14:23.53: Waiting for worker…
2025-08-21 14:24.58: Got resource from pool OCluster
Building on asteria.caelum.ci.dev
All commits already cached
HEAD is now at 4bae7ec4df Merge pull request #28375 from jmid/opam-compiler-re-bounds
Merge made by the 'ort' strategy.
 packages/curl_lwt/curl_lwt.0.10.0/opam            |  2 +-
 packages/lwt/lwt.6.0.0~alpha01/opam               | 69 +++++++++++++++++++++++
 packages/lwt_direct/lwt_direct.6.0.0~alpha01/opam | 44 +++++++++++++++
 packages/lwt_glib/lwt_glib.1.0.1/opam             |  2 +-
 packages/lwt_glib/lwt_glib.1.1.0/opam             |  2 +-
 packages/lwt_glib/lwt_glib.1.1.1/opam             |  2 +-
 packages/lwt_log/lwt_log.1.1.0/opam               |  2 +-
 packages/lwt_log/lwt_log.1.1.1/opam               |  2 +-
 packages/lwt_log/lwt_log.1.1.2/opam               |  2 +-
 packages/ocurl/ocurl.0.7.6/opam                   |  1 +
 packages/ocurl/ocurl.0.7.7/opam                   |  1 +
 packages/ocurl/ocurl.0.7.8/opam                   |  1 +
 packages/ocurl/ocurl.0.7.9/opam                   |  1 +
 packages/ocurl/ocurl.0.8.1/opam                   |  1 +
 packages/ocurl/ocurl.0.8.2/opam                   |  1 +
 packages/ocurl/ocurl.0.9.0/opam                   |  1 +
 packages/ocurl/ocurl.0.9.1/opam                   |  1 +
 packages/ocurl/ocurl.0.9.2/opam                   |  1 +
 18 files changed, 129 insertions(+), 7 deletions(-)
 create mode 100644 packages/lwt/lwt.6.0.0~alpha01/opam
 create mode 100644 packages/lwt_direct/lwt_direct.6.0.0~alpha01/opam

(from ocaml/opam:debian-12-ocaml-4.14@sha256:30169b3ce5a84172c049cfc64621b66e9a02a7b0431076f872278354c85107fe)
2025-08-21 14:26.59 ---> using "537aca729d05de45d9ac09e3b93ccdc5b8c76937ce3b719ce3df0f2d2da0c7bf" 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"))
2025-08-21 14:26.59 ---> using "bf4d5fcee75be4f52a20c8aa5d3f2b5106a93893f62a370444abc07184465d9c" 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)

2025-08-21 14:26.59 ---> using "d3770548133774911aafa1061417520c3b1c405686165b021640f0c066429294" 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=12
# 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    4.14
2025-08-21 14:26.59 ---> using "74c973fb535d757630971e173d6207dd936c213fecae07a816a48efc7358c15a" 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/"))
2025-08-21 14:26.59 ---> using "17e4308f1b3ec43693e4bdf2c646221a480a5d0906637a04b3cf4d62f94274be" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2025-08-21 14:27.05 ---> saved as "2d803d36be5d069a43af413fefe49e73dc289435749040c9082e8ef51e847e23"

/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)

2025-08-21 14:27.16 ---> saved as "19b2f4c60735b4ccbd9c1f2b945e7aef4da35fdfdac1ff513a810930832c850c"

/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 bookworm InRelease
Get:2 http://deb.debian.org/debian bookworm-updates InRelease [55.4 kB]
Get:3 http://deb.debian.org/debian-security bookworm-security InRelease [48.0 kB]
Get:4 http://deb.debian.org/debian-security bookworm-security/main amd64 Packages [274 kB]
Fetched 378 kB in 0s (908 kB/s)
Reading package lists...
# OS package update successful
2025-08-21 14:27.18 ---> saved as "62a4a0b4e723884548cb045397017149ca2a4d13c2847da616f8ef1437f00645"

/home/opam: (run (shell "opam pin add -k version -yn lwt.6.0.0~alpha01 6.0.0~alpha01"))
lwt is now pinned to version 6.0.0~alpha01
2025-08-21 14:27.19 ---> saved as "04bc5186039707735b4c5f7e60303ae87baf9ad1ac8606c2c3ba03e882527108"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam depext lwt.6.0.0~alpha01 && opam reinstall lwt.6.0.0~alpha01;\
                        \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-12\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'lwt.6.0.0~alpha01' && partial_fails=\"$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
[ERROR] No solution for lwt.6.0.0~alpha01: Your request can't be satisfied:
          - unmet availability conditions: opam-version >= "2.1.0"


Command failed: opam list --readonly --external '--resolve=lwt.6.0.0~alpha01' --color=never returned 20
"/usr/bin/env" "bash" "-c" "opam depext lwt.6.0.0~alpha01 && opam reinstall lwt.6.0.0~alpha01;
        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-12\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'lwt.6.0.0~alpha01' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2025-08-21 14:27.32: Job failed: Failed: Build failed
2025-08-21 14:27.32: Log analysis:
2025-08-21 14:27.32: >>> 
[ERROR] No solution for lwt.6.0.0~alpha01: Your request can't be satisfied:
 (score = 100)
2025-08-21 14:27.32: [SKIP] Package not available