Build:
  1. 0
2026-03-12 21:25.52: New job: build melange-fest.0.2.0, lower-bounds, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29540/head (3550bd81c24b7162a2d809ef9216e036734f859b)
                              on debian-13-ocaml-5.3/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29540/head" && git reset --hard 3550bd81
git fetch origin master
git merge --no-edit e3653b4f8d4220c4377cc2cf0f43ec8a27f063ac
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-5.3@sha256:d68d2901c08ff08c488598e952eb1fdf628ab2d548c42615080cd232ee37a8d1
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn melange-fest.0.2.0 0.2.0
RUN opam reinstall melange-fest.0.2.0; \
    res=$?; \
    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 "$pkg" != 'melange-fest.0.2.0' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
ENV OPAMCRITERIA="+removed,+count[version-lag,solution]"
ENV OPAMFIXUPCRITERIA="+removed,+count[version-lag,solution]"
ENV OPAMUPGRADECRITERIA="+removed,+count[version-lag,solution]"
RUN opam reinstall melange-fest.0.2.0; \
    res=$?; \
    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 "$pkg" != 'melange-fest.0.2.0' && partial_fails="$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 .

2026-03-12 21:25.52: Using cache hint "ocaml/opam:debian-13-ocaml-5.3@sha256:d68d2901c08ff08c488598e952eb1fdf628ab2d548c42615080cd232ee37a8d1-melange-fest.0.2.0-3550bd81c24b7162a2d809ef9216e036734f859b"
2026-03-12 21:25.52: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-5.3@sha256:d68d2901c08ff08c488598e952eb1fdf628ab2d548c42615080cd232ee37a8d1)
 (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 melange-fest.0.2.0 0.2.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall melange-fest.0.2.0;\
             \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 \"$pkg\" != 'melange-fest.0.2.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (env OPAMCRITERIA +removed,+count[version-lag,solution])
 (env OPAMFIXUPCRITERIA +removed,+count[version-lag,solution])
 (env OPAMUPGRADECRITERIA +removed,+count[version-lag,solution])
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall melange-fest.0.2.0;\
             \n        res=$?;\
             \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 \"$pkg\" != 'melange-fest.0.2.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-03-12 21:25.52: Waiting for resource in pool OCluster
2026-03-12 21:25.53: Waiting for worker…
2026-03-12 21:25.53: Got resource from pool OCluster
Building on toxis.caelum.ci.dev
All commits already cached
HEAD is now at e3653b4f8d Merge pull request #29529 from mattam82/malfunction-0.7.1
Updating e3653b4f8d..3550bd81c2
Fast-forward
 packages/melange-fest/melange-fest.0.2.0/opam | 50 +++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 packages/melange-fest/melange-fest.0.2.0/opam

(from ocaml/opam:debian-13-ocaml-5.3@sha256:d68d2901c08ff08c488598e952eb1fdf628ab2d548c42615080cd232ee37a8d1)
2026-03-12 21:26.09 ---> using "fa087069cd4913e9575aba52692d4f0e549203496289924a2b385444c7b95f42" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-03-12 21:26.09 ---> using "a606ac7c4376b4ad9a003c0643876389194a32e0d857283c6e6043ec50883067" 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
2026-03-12 21:26.09 ---> using "4f0f49a12071139aa6c878baaa9ad6314237670c0fa7798e8f239d8e5b173918" 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       5.3
# invariant            ["ocaml-base-compiler" {= "5.3.0"}]
# compiler-packages    ocaml-base-compiler.5.3.0, ocaml-compiler.5.3.0, ocaml-options-vanilla.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/5.3/lib/ocaml/stublibs:/home/opam/.opam/5.3/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       5.3.0
2026-03-12 21:26.09 ---> using "9bd0574f2786d214295047b1bf0c7fb285371685bd3760db8a65803e6604b45d" 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/"))
2026-03-12 21:26.09 ---> using "40acc6ac8f6370d1861287075af9cfc6c3353704dfeaff03eb0acf3985b55616" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-03-12 21:26.16 ---> saved as "00bf4765dc2e6e117b996fe4cc7c38a4afb6df02399db65fb2e8788ab988e997"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-03-12 21:26.33 ---> saved as "1fde811f229e3c3cc83cc9da755c2b6bc9362bd6505816eb06bd221bd8b78420"

/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 [111 kB]
- Fetched 202 kB in 0s (1847 kB/s)
- Reading package lists...
2026-03-12 21:26.34 ---> saved as "ce7d9f44aae7c2b52e40d0171469d1e9ae685bdaf1718face6e26c3015a4883b"

/home/opam: (run (shell "opam pin add -k version -yn melange-fest.0.2.0 0.2.0"))
melange-fest is now pinned to version 0.2.0
2026-03-12 21:26.35 ---> saved as "5928b9413bf4447e2825b36aa21e2915e155c39e6ee8626372cb40c462bf5b9b"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall melange-fest.0.2.0;\
                        \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 \"$pkg\" != 'melange-fest.0.2.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
melange-fest.0.2.0 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 16 packages
  - install cmdliner            2.1.0          [required by melange]
  - install cppo                1.8.0          [required by melange]
  - install dune                3.21.1         [required by melange-fest]
  - install dune-build-info     3.21.1         [required by melange]
  - install melange             6.0.1-53       [required by melange-fest]
  - install melange-fest        0.2.0 (pinned)
  - install menhir              20260209       [required by melange]
  - install menhirCST           20260209       [required by menhir]
  - install menhirGLR           20260209       [required by menhir]
  - install menhirLib           20260209       [required by menhir]
  - install menhirSdk           20260209       [required by menhir]
  - install ocaml-compiler-libs v0.17.0        [required by ppxlib]
  - install ppx_derivers        1.2.1          [required by ppxlib]
  - install ppxlib              0.37.0         [required by melange]
  - install sexplib0            v0.17.0        [required by ppxlib]
  - install stdlib-shims        0.3.0          [required by ppxlib]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved cmdliner.2.1.0  (cached)
-> retrieved cppo.1.8.0  (cached)
-> retrieved dune.3.21.1, dune-build-info.3.21.1  (cached)
-> installed cmdliner.2.1.0
-> retrieved melange.6.0.1-53  (https://opam.ocaml.org/cache)
-> retrieved melange-fest.0.2.0  (https://github.com/ahrefs/melange-fest/releases/download/0.2.0/melange-fest-0.2.0.tbz)
-> retrieved menhir.20260209, menhirCST.20260209, menhirGLR.20260209, menhirLib.20260209, menhirSdk.20260209  (cached)
-> retrieved ocaml-compiler-libs.v0.17.0  (cached)
-> retrieved ppx_derivers.1.2.1  (cached)
-> retrieved ppxlib.0.37.0  (cached)
-> retrieved sexplib0.v0.17.0  (cached)
-> retrieved stdlib-shims.0.3.0  (cached)
-> installed dune.3.21.1
-> installed cppo.1.8.0
-> installed menhirCST.20260209
-> installed ppx_derivers.1.2.1
-> installed menhirGLR.20260209
-> installed menhirLib.20260209
-> installed stdlib-shims.0.3.0
-> installed menhirSdk.20260209
-> installed sexplib0.v0.17.0
-> installed dune-build-info.3.21.1
-> installed ocaml-compiler-libs.v0.17.0
-> installed menhir.20260209
-> installed ppxlib.0.37.0
-> installed melange.6.0.1-53
-> installed melange-fest.0.2.0
Done.
# To update the current shell environment, run: eval $(opam env)
2026-03-12 21:28.20 ---> saved as "4422349a9039e1fecfee8f2ec21092611774c9250adb5f3305e4679074369c26"

/home/opam: (env OPAMCRITERIA +removed,+count[version-lag,solution])

/home/opam: (env OPAMFIXUPCRITERIA +removed,+count[version-lag,solution])

/home/opam: (env OPAMUPGRADECRITERIA +removed,+count[version-lag,solution])

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall melange-fest.0.2.0;\
                        \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 \"$pkg\" != 'melange-fest.0.2.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
The following actions will be performed:
=== remove 2 packages
  - remove    menhirCST           20260209             [conflicts with dune]
  - remove    menhirGLR           20260209             [conflicts with dune]
=== downgrade 11 packages
  - downgrade cmdliner            2.1.0 to 1.3.0       [required by melange]
  - downgrade cppo                1.8.0 to 1.6.7       [uses dune]
  - downgrade dune                3.21.1 to 3.15.3     [required by melange-fest]
  - downgrade dune-build-info     3.21.1 to 2.9.3      [uses dune]
  - downgrade melange             6.0.1-53 to 5.0.0-53 [required by melange-fest]
  - downgrade menhir              20260209 to 20201214 [uses dune]
  - downgrade menhirLib           20260209 to 20201214 [uses dune]
  - downgrade menhirSdk           20260209 to 20201214 [uses dune]
  - downgrade ppxlib              0.37.0 to 0.34.0     [uses dune]
  - downgrade sexplib0            v0.17.0 to v0.15.1   [uses dune]
  - downgrade stdlib-shims        0.3.0 to 0.1.0       [uses dune]
=== recompile 3 packages
  - recompile melange-fest        0.2.0 (pinned)
  - recompile ocaml-compiler-libs v0.17.0              [uses dune]
  - recompile ppx_derivers        1.2.1                [uses dune]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved cmdliner.1.3.0  (cached)
-> retrieved cppo.1.6.7  (cached)
-> retrieved dune.3.15.3  (cached)
-> retrieved dune-build-info.2.9.3  (cached)
-> retrieved melange.5.0.0-53  (https://opam.ocaml.org/cache)
-> retrieved menhir.20201214, menhirLib.20201214, menhirSdk.20201214  (cached)
-> retrieved ocaml-compiler-libs.v0.17.0  (cached)
-> retrieved ppx_derivers.1.2.1  (cached)
-> retrieved ppxlib.0.34.0  (cached)
-> retrieved sexplib0.v0.15.1  (cached)
-> retrieved stdlib-shims.0.1.0  (cached)
-> removed   melange-fest.0.2.0
-> removed   melange.6.0.1-53
-> removed   cmdliner.2.1.0
-> removed   cppo.1.8.0
-> removed   dune-build-info.3.21.1
-> removed   menhir.20260209
-> removed   menhirCST.20260209
-> removed   menhirGLR.20260209
-> removed   menhirLib.20260209
-> removed   menhirSdk.20260209
-> removed   ppxlib.0.37.0
-> removed   ocaml-compiler-libs.v0.17.0
-> removed   ppx_derivers.1.2.1
-> removed   sexplib0.v0.17.0
-> removed   stdlib-shims.0.3.0
-> removed   dune.3.21.1
-> installed cmdliner.1.3.0
-> installed dune.3.15.3
-> installed ppx_derivers.1.2.1
-> installed dune-build-info.2.9.3
-> installed stdlib-shims.0.1.0
-> installed menhirSdk.20201214
-> installed sexplib0.v0.15.1
-> installed menhirLib.20201214
-> installed cppo.1.6.7
-> installed ocaml-compiler-libs.v0.17.0
-> installed menhir.20201214
-> installed ppxlib.0.34.0
-> installed melange.5.0.0-53
-> installed melange-fest.0.2.0
Done.
# To update the current shell environment, run: eval $(opam env)
2026-03-12 21:30.21 ---> saved as "cccfeef2ae6d446b84647824ae55c7ec2d069dd2a0c6d8e292b78bca5e4ff462"
Job succeeded
2026-03-12 21:30.28: Job succeeded