(not at the head of any monitored branch or PR)
2025-03-13 14:19.12: New job: build lem.2025-03-13, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/27619/head (c2749f906dc47b8393bd361121c04d0fea91e450)
                              on debian-12-ocaml-4.06/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/27619/head" && git reset --hard c2749f90
git fetch origin master
git merge --no-edit 906fb78ee221e4b7676dcd2285fb6d40cbdc59f2
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-12-ocaml-4.06@sha256:dd08a6e498ec1d1abb8f68c3e29c67e2e56d83893fe44a04b661199bf408bfa6
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn lem.2025-03-13 2025-03-13
RUN opam reinstall lem.2025-03-13; \
    res=$?; \
    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 "$pkg" != 'lem.2025-03-13' && partial_fails="$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 .

2025-03-13 14:19.12: Using cache hint "ocaml/opam:debian-12-ocaml-4.06@sha256:dd08a6e498ec1d1abb8f68c3e29c67e2e56d83893fe44a04b661199bf408bfa6-lem.2025-03-13-c2749f906dc47b8393bd361121c04d0fea91e450"
2025-03-13 14:19.12: Using OBuilder spec:
((from ocaml/opam:debian-12-ocaml-4.06@sha256:dd08a6e498ec1d1abb8f68c3e29c67e2e56d83893fe44a04b661199bf408bfa6)
 (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 lem.2025-03-13 2025-03-13"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall lem.2025-03-13;\
             \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 \"$pkg\" != 'lem.2025-03-13' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-03-13 14:19.12: Waiting for resource in pool OCluster
2025-03-13 14:19.13: Waiting for worker…
2025-03-13 14:20.26: Got resource from pool OCluster
Building on x86-bm-c2.sw.ocaml.org
HEAD is now at c090587620 Merge commit '817e2bca6bb374fd7865253f73a8e26703930da1'
HEAD is now at 906fb78ee2 Merge pull request #27594 from mbarbin/dunolint
Updating 906fb78ee2..c2749f906d
Fast-forward
 packages/lem/lem.2025-03-13/opam | 52 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 packages/lem/lem.2025-03-13/opam

(from ocaml/opam:debian-12-ocaml-4.06@sha256:dd08a6e498ec1d1abb8f68c3e29c67e2e56d83893fe44a04b661199bf408bfa6)
2025-03-13 14:21.32 ---> saved as "bfc27f9784aa20ca97b4ab197552878430f7e6b3812b0e3b37179a77fcb6f7d4"

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2025-03-13 14:21.32 ---> saved as "4dc5cfd43d53bf4ad93ae8538b2a31311244d60eaa61362840f40e81ab25b4dc"

/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 development 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 ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[opam-repository-archive] synchronised from git+https://github.com/ocaml/opam-repository-archive
[default] synchronised from file:///home/opam/opam-repository
2025-03-13 14:22.43 ---> saved as "65a20cd880360a8cfc07c51f4b2fbd4c4a2277a0704bd6ae4a97eb827c7fb33c"

/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         2.4.0~alpha1~dev (f1cf50f2711981a605f81a80c68b73774d5841ff)
# self-upgrade         no
# system               arch=x86_64 os=linux os-distribution=debian os-version=12
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 39
# repositories         1 (local), 1 (version-controlled)
# pinned               1 (version)
# current-switch       4.06
# invariant            ["ocaml-base-compiler" {= "4.06.1"}]
# compiler-packages    ocaml-base-compiler.4.06.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/4.06/lib/ocaml/stublibs:/home/opam/.opam/4.06/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       4.06.1
2025-03-13 14:22.44 ---> saved as "6609f9a3fea4aa7d989787e6be794cffc188da10a90fab03f484867088547e18"

/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/"))
2025-03-13 14:22.50 ---> saved as "878e76b0454d4019c31f6388c5c7340391927aaf15184937c7ac40ded416920e"

/home/opam: (copy (src .) (dst opam-repository/))
2025-03-13 14:22.59 ---> saved as "5874f9711ebbbb0f1f06abf8f75d7e18a1fccee903af1b2950309908689d4770"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-03-13 14:23.51 ---> saved as "9dbc1a697666c9c9eaa2c82080de1c4512c458c47714bbb43643d77c42f3d19a"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/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 [246 kB]
- Fetched 349 kB in 0s (1397 kB/s)
- Reading package lists...
2025-03-13 14:23.52 ---> saved as "48c07b68b1cc6f9133a6e86bc41f8949398537e2544a2b5de8bbe21860511591"

/home/opam: (run (shell "opam pin add -k version -yn lem.2025-03-13 2025-03-13"))
lem is now pinned to version 2025-03-13
2025-03-13 14:23.54 ---> saved as "cc787864d159141f342b4e6ca8c07cc38d31beb8f4d8c863c0b966040532f8c5"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall lem.2025-03-13;\
                        \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 \"$pkg\" != 'lem.2025-03-13' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
lem.2025-03-13 is not installed. Install it? [Y/n] y
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler = 4.06.1
    - lem >= 2025-03-13 -> ocaml >= 4.07.0 -> dkml-base-compiler
    You can temporarily relax the switch invariant with `--update-invariant'
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler = 4.06.1
    - lem >= 2025-03-13 -> ocaml >= 4.07.0 -> ocaml-variants >= 4.07.0
  * Missing dependency:
    - lem >= 2025-03-13 -> ocaml >= 4.07.0 -> ocaml-variants >= 4.07.0 -> ocaml-beta
    unmet availability conditions: 'enable-ocaml-beta-repository'
  * Missing dependency:
    - lem >= 2025-03-13 -> ocaml >= 4.07.0 -> ocaml-variants >= 4.07.0 -> system-msvc
    unmet availability conditions: 'os = "win32"'

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall lem.2025-03-13;
        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 "$pkg" != 'lem.2025-03-13' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2025-03-13 14:24.18: Job failed: Failed: Build failed
2025-03-13 14:24.18: Log analysis:
2025-03-13 14:24.18: >>> 
No solution found, exiting
 (score = 100)
2025-03-13 14:24.18: [SKIP] Package not available