(not at the head of any monitored branch or PR)
2026-03-21 18:50.25: New job: test merge-fmt.0.4 with conf-m4.1, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29579/head (e26ca330660bcb49f8bb8e3d37703d278be8c4bd)
                              on debian-13-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29579/head" && git reset --hard e26ca330
git fetch origin master
git merge --no-edit 76bf2ed9443fdee37e6f046c6295d358be3f8598
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.14@sha256:37323dc71cac48a3e4688e16b45b95486f3cc440c55ab3f83114e8973362f41e
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn conf-m4.1 1
RUN opam reinstall conf-m4.1; \
    res=$?; \
    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 "$pkg" != 'conf-m4.1' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
RUN opam reinstall merge-fmt.0.4; \
    res=$?; \
    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 "$pkg" != 'merge-fmt.0.4' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
RUN (opam reinstall --with-test merge-fmt.0.4) || true
RUN opam reinstall --with-test --verbose merge-fmt.0.4; \
    res=$?; \
    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 "$pkg" != 'merge-fmt.0.4' && partial_fails="$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 .

2026-03-21 18:50.25: Using cache hint "ocaml/opam:debian-13-ocaml-4.14@sha256:37323dc71cac48a3e4688e16b45b95486f3cc440c55ab3f83114e8973362f41e-conf-m4.1-merge-fmt.0.4-e26ca330660bcb49f8bb8e3d37703d278be8c4bd"
2026-03-21 18:50.25: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.14@sha256:37323dc71cac48a3e4688e16b45b95486f3cc440c55ab3f83114e8973362f41e)
 (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 conf-m4.1 1"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall conf-m4.1;\
             \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 \"$pkg\" != 'conf-m4.1' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall merge-fmt.0.4;\
             \n        res=$?;\
             \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 \"$pkg\" != 'merge-fmt.0.4' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (run (network host)
      (shell "(opam reinstall --with-test merge-fmt.0.4) || true"))
 (run (shell  "opam reinstall --with-test --verbose merge-fmt.0.4;\
             \n        res=$?;\
             \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 \"$pkg\" != 'merge-fmt.0.4' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-03-21 18:50.25: Waiting for resource in pool OCluster
2026-03-21 21:22.42: Waiting for worker…
2026-03-21 21:24.20: Got resource from pool OCluster
Building on asteria.caelum.ci.dev
All commits already cached
HEAD is now at 76bf2ed944 Merge pull request #29572 from hannesm/release-letsencrypt-v2.0.0
Updating 76bf2ed944..e26ca33066
Fast-forward
 packages/conf-findutils/conf-findutils.1/opam                       | 2 ++
 packages/conf-m4/conf-m4.1/opam                                     | 1 +
 .../conf-mingw-w64-bzip2-x86_64/conf-mingw-w64-bzip2-x86_64.1/opam  | 4 ++--
 packages/conf-mingw-w64-gcc-x86_64/conf-mingw-w64-gcc-x86_64.1/opam | 4 ++--
 packages/conf-mingw-w64-gmp-x86_64/conf-mingw-w64-gmp-x86_64.1/opam | 4 ++--
 .../conf-mingw-w64-pkgconf-x86_64.1/opam                            | 6 +++---
 .../conf-mingw-w64-zlib-x86_64/conf-mingw-w64-zlib-x86_64.1/opam    | 4 ++--
 .../conf-mingw-w64-zstd-x86_64/conf-mingw-w64-zstd-x86_64.1/opam    | 4 ++--
 packages/conf-perl/conf-perl.2/opam                                 | 1 +
 9 files changed, 17 insertions(+), 13 deletions(-)

(from ocaml/opam:debian-13-ocaml-4.14@sha256:37323dc71cac48a3e4688e16b45b95486f3cc440c55ab3f83114e8973362f41e)
2026-03-21 21:41.14 ---> using "32cd5b5baf995c02200cf270da597dbb25becd220af2c200c00b8b241a742195" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-03-21 21:41.14 ---> using "f3ed7bdbef828c9c0b079b10505c5f05c3c9adcca11ce5bf2dac2a4183e099d8" 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
[NOTE] The 'jobs' option was reset, its value was 71 and its new value will vary according to the current number of cores on your machine. You can restore the fixed value using:
           opam option jobs=71 --global
Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2026-03-21 21:41.14 ---> using "5bf6adb7b45bb7e0c215b8f509c71a8dae73a9a2060efcc27df9d4ef6c6d3350" 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                 255
# repositories         1 (version-controlled)
# pinned               1 (version)
# current-switch       4.14
# invariant            ["ocaml-base-compiler" {= "4.14.2"}]
# compiler-packages    ocaml-base-compiler.4.14.2, ocaml-options-vanilla.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/4.14/lib/ocaml/stublibs:/home/opam/.opam/4.14/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       4.14.2
2026-03-21 21:41.14 ---> using "0546f18fa5979677ee22eb9f2fcf19ab371564e845d317c2c70e41dd97dc22dd" 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/"))
2026-03-21 21:41.14 ---> using "0a7188cbe95f4fe0ff26694977eb8794c975bdb534078da98a06d6c7373289b4" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-03-21 21:41.15 ---> using "64b0b1c5956282be62155632b73d49a512770a013b8177e3bd97cfd5e30573f3" from cache

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-03-21 21:41.15 ---> using "5bbc18b187922ee43ab28303966f314ef55d58cc243daaa1a62d891c4651643d" from cache

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Get:1 http://deb.debian.org/debian trixie InRelease [140 kB]
- 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 trixie/main amd64 Packages [9671 kB]
- Get:5 http://deb.debian.org/debian-security trixie-security/main amd64 Packages [113 kB]
- Fetched 10.0 MB in 1s (9665 kB/s)
- Reading package lists...
2026-03-21 21:41.15 ---> using "26c4cf2d2932a5613ac2db8ae671186642ac802d5db4f44c87661f5676362dec" from cache

/home/opam: (run (shell "opam pin add -k version -yn conf-m4.1 1"))
conf-m4 is now pinned to version 1
2026-03-21 21:41.15 ---> using "1f550c38f5bac1e80ecbaf30222372f1ba650bb720c00e72e38ddd72856eafa1" from cache

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall conf-m4.1;\
                        \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 \"$pkg\" != 'conf-m4.1' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
conf-m4.1 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 1 package
  - install conf-m4 1 (pinned)

The following system packages will first need to be installed:
    m4

<><> Handling external dependencies <><><><><><><><><><><><><><><><><><><><><><>

opam believes some required external dependencies are missing. opam can:
> 1. Run apt-get to install them (may need root/sudo access)
  2. Display the recommended apt-get command and wait while you run it manually (e.g. in another terminal)
  3. Continue anyway, and, upon success, permanently register that this external dependency is present, but not detectable
  4. Abort the installation

[1/2/3/4] 1

+ /usr/bin/sudo "apt-get" "install" "-qq" "-yy" "m4"
- Selecting previously unselected package m4.
- (Reading database ... 
(Reading database ... 5%
(Reading database ... 10%
(Reading database ... 15%
(Reading database ... 20%
(Reading database ... 25%
(Reading database ... 30%
(Reading database ... 35%
(Reading database ... 40%
(Reading database ... 45%
(Reading database ... 50%
(Reading database ... 55%
(Reading database ... 60%
(Reading database ... 65%
(Reading database ... 70%
(Reading database ... 75%
(Reading database ... 80%
(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 20623 files and directories currently installed.)
- Preparing to unpack .../archives/m4_1.4.19-8_amd64.deb ...
- Unpacking m4 (1.4.19-8) ...
- Setting up m4 (1.4.19-8) ...

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> installed conf-m4.1
Done.
# To update the current shell environment, run: eval $(opam env)
2026-03-21 21:41.15 ---> using "e0baf65572c68338ca7ad6c8769e7aeb1e3d03e85ea3541782477400153674e3" from cache

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall merge-fmt.0.4;\
                        \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 \"$pkg\" != 'merge-fmt.0.4' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
merge-fmt.0.4 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 8 packages
  - install base              v0.16.4 [required by merge-fmt]
  - install cmdliner          2.1.0   [required by merge-fmt]
  - install csexp             1.5.2   [required by dune-configurator]
  - install dune              3.22.0  [required by merge-fmt]
  - install dune-configurator 3.22.0  [required by base]
  - install merge-fmt         0.4
  - install sexplib0          v0.16.0 [required by base]
  - install stdio             v0.16.0 [required by merge-fmt]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved base.v0.16.4  (cached)
-> retrieved cmdliner.2.1.0  (cached)
-> retrieved csexp.1.5.2  (cached)
-> retrieved dune.3.22.0, dune-configurator.3.22.0  (cached)
-> retrieved merge-fmt.0.4  (https://opam.ocaml.org/cache)
-> retrieved sexplib0.v0.16.0  (cached)
-> retrieved stdio.v0.16.0  (cached)
-> installed cmdliner.2.1.0
-> installed dune.3.22.0
-> installed csexp.1.5.2
-> installed sexplib0.v0.16.0
-> installed dune-configurator.3.22.0
-> installed base.v0.16.4
-> installed stdio.v0.16.0
-> installed merge-fmt.0.4
Done.
# To update the current shell environment, run: eval $(opam env)
2026-03-21 21:41.55 ---> saved as "c8d75eef99c77f3c39176870a1862ae9c0dd656f79f8e7fc24fb6fb6fb2ce715"

/home/opam: (run (network host)
                 (shell "(opam reinstall --with-test merge-fmt.0.4) || true"))
The following actions will be performed:
=== downgrade 1 package
  - downgrade cmdliner                    2.1.0 to 1.3.0 [required by merge-fmt]
=== recompile 1 package
  - recompile merge-fmt                   0.4
=== install 81 packages
  - install   astring                     0.8.5          [required by ocamlformat-lib]
  - install   base_bigstring              v0.16.0        [required by core]
  - install   base_quickcheck             v0.16.0        [required by core, expect_test_helpers_core]
  - install   bin_prot                    v0.16.0        [required by core]
  - install   camlp-streams               5.0.1          [required by ocamlformat-lib]
  - install   core                        v0.16.2        [required by core_unix]
  - install   core_kernel                 v0.16.0        [required by core_unix]
  - install   core_unix                   v0.16.0        [required by merge-fmt]
  - install   dune-build-info             3.22.0         [required by ocamlformat-lib]
  - install   either                      1.0.0          [required by ocamlformat-lib]
  - install   expect_test_helpers_core    v0.16.0        [required by core_unix]
  - install   fieldslib                   v0.16.0        [required by core]
  - install   fix                         20250919       [required by ocamlformat-lib]
  - install   fpath                       0.7.3          [required by ocamlformat-lib]
  - install   int_repr                    v0.16.0        [required by core_kernel]
  - install   jane-street-headers         v0.16.0        [required by core_unix]
  - install   jst-config                  v0.16.0        [required by core_unix]
  - install   menhir                      20260209       [required by ocamlformat-lib]
  - install   menhirCST                   20260209       [required by menhir]
  - install   menhirGLR                   20260209       [required by menhir]
  - install   menhirLib                   20260209       [required by ocamlformat-lib]
  - install   menhirSdk                   20260209       [required by ocamlformat-lib]
  - install   num                         1.6            [required by sexplib]
  - install   ocaml-compiler-libs         v0.12.4        [required by ppxlib]
  - install   ocaml-version               4.0.3          [required by ocamlformat-lib]
  - install   ocaml_intrinsics            v0.16.2        [required by core_unix]
  - install   ocamlbuild                  0.16.1         [required by fpath, astring, uuseg]
  - install   ocamlfind                   1.9.8          [required by ocp-indent, astring, fpath, uuseg]
  - install   ocamlformat                 0.27.0         [required by merge-fmt]
  - install   ocamlformat-lib             0.27.0         [required by ocamlformat]
  - install   ocp-indent                  1.9.0          [required by ocamlformat-lib]
  - install   parsexp                     v0.16.0        [required by sexplib]
  - install   ppx_assert                  v0.16.0        [required by core]
  - install   ppx_base                    v0.16.0        [required by core]
  - install   ppx_bench                   v0.16.0        [required by ppx_jane]
  - install   ppx_bin_prot                v0.16.0        [required by ppx_jane]
  - install   ppx_cold                    v0.16.0        [required by ppx_base]
  - install   ppx_compare                 v0.16.0        [required by ppx_base, bin_prot]
  - install   ppx_custom_printf           v0.16.0        [required by ppx_jane]
  - install   ppx_derivers                1.2.1          [required by ppxlib]
  - install   ppx_disable_unused_warnings v0.16.0        [required by ppx_jane]
  - install   ppx_enumerate               v0.16.0        [required by ppx_base]
  - install   ppx_expect                  v0.16.2        [required by merge-fmt]
  - install   ppx_fields_conv             v0.16.0        [required by ppx_jane]
  - install   ppx_fixed_literal           v0.16.0        [required by ppx_jane]
  - install   ppx_globalize               v0.16.0        [required by ppx_base]
  - install   ppx_hash                    v0.16.0        [required by core]
  - install   ppx_here                    v0.16.0        [required by ppx_jane]
  - install   ppx_ignore_instrumentation  v0.16.0        [required by ppx_jane]
  - install   ppx_inline_test             v0.16.1        [required by core]
  - install   ppx_jane                    v0.16.0        [required by core_unix]
  - install   ppx_let                     v0.16.0        [required by ppx_jane]
  - install   ppx_log                     v0.16.0        [required by ppx_jane]
  - install   ppx_module_timer            v0.16.0        [required by ppx_jane]
  - install   ppx_optcomp                 v0.16.0        [required by core_unix]
  - install   ppx_optional                v0.16.0        [required by ppx_jane]
  - install   ppx_pipebang                v0.16.0        [required by ppx_jane]
  - install   ppx_sexp_conv               v0.16.0        [required by core]
  - install   ppx_sexp_message            v0.16.0        [required by core]
  - install   ppx_sexp_value              v0.16.0        [required by ppx_jane]
  - install   ppx_stable                  v0.16.0        [required by ppx_jane]
  - install   ppx_stable_witness          v0.16.0        [required by ppx_jane]
  - install   ppx_string                  v0.16.0        [required by ppx_jane]
  - install   ppx_tydi                    v0.16.0        [required by ppx_jane]
  - install   ppx_typerep_conv            v0.16.0        [required by ppx_jane]
  - install   ppx_variants_conv           v0.16.0        [required by ppx_jane]
  - install   ppxlib                      0.35.0         [required by ppx_jane]
  - install   re                          1.14.0         [required by ocamlformat]
  - install   sexp_pretty                 v0.16.0        [required by expect_test_helpers_core]
  - install   sexplib                     v0.16.0        [required by core_unix]
  - install   spawn                       v0.17.0        [required by core_unix]
  - install   splittable_random           v0.16.0        [required by core]
  - install   stdlib-shims                0.3.0          [required by ppxlib]
  - install   time_now                    v0.16.0        [required by core]
  - install   timezone                    v0.16.0        [required by core_unix]
  - install   topkg                       1.1.1          [required by fpath, astring, uuseg]
  - install   typerep                     v0.16.0        [required by core]
  - install   uucp                        17.0.0         [required by uuseg]
  - install   uuseg                       17.0.0         [required by ocamlformat-lib]
  - install   uutf                        1.0.4          [required by ocamlformat-lib]
  - install   variantslib                 v0.16.0        [required by core]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved astring.0.8.5  (https://opam.ocaml.org/cache)
-> retrieved base_bigstring.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved base_quickcheck.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved bin_prot.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved camlp-streams.5.0.1  (https://opam.ocaml.org/cache)
-> retrieved cmdliner.1.3.0  (https://opam.ocaml.org/cache)
-> retrieved core.v0.16.2  (https://opam.ocaml.org/cache)
-> installed camlp-streams.5.0.1
-> retrieved core_kernel.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved core_unix.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved dune-build-info.3.22.0  (https://opam.ocaml.org/cache)
-> retrieved either.1.0.0  (https://opam.ocaml.org/cache)
-> retrieved expect_test_helpers_core.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved fieldslib.v0.16.0  (https://opam.ocaml.org/cache)
-> installed either.1.0.0
-> retrieved fix.20250919  (https://opam.ocaml.org/cache)
-> installed fieldslib.v0.16.0
-> retrieved fpath.0.7.3  (https://opam.ocaml.org/cache)
-> retrieved int_repr.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved jane-street-headers.v0.16.0  (https://opam.ocaml.org/cache)
-> installed dune-build-info.3.22.0
-> retrieved jst-config.v0.16.0  (https://opam.ocaml.org/cache)
-> installed jane-street-headers.v0.16.0
-> installed fix.20250919
-> retrieved menhir.20260209, menhirCST.20260209, menhirGLR.20260209, menhirLib.20260209, menhirSdk.20260209  (https://opam.ocaml.org/cache)
-> installed menhirCST.20260209
-> retrieved merge-fmt.0.4  (https://opam.ocaml.org/cache)
-> retrieved num.1.6  (https://opam.ocaml.org/cache)
-> retrieved ocaml-compiler-libs.v0.12.4  (https://opam.ocaml.org/cache)
-> installed menhirGLR.20260209
-> installed menhirLib.20260209
-> retrieved ocaml-version.4.0.3  (https://opam.ocaml.org/cache)
-> installed menhirSdk.20260209
-> retrieved ocaml_intrinsics.v0.16.2  (https://opam.ocaml.org/cache)
-> retrieved ocamlbuild.0.16.1  (https://opam.ocaml.org/cache)
-> installed ocaml-version.4.0.3
-> retrieved ocamlfind.1.9.8  (https://opam.ocaml.org/cache)
-> retrieved ocamlformat.0.27.0, ocamlformat-lib.0.27.0  (https://opam.ocaml.org/cache)
-> installed num.1.6
-> installed ocaml-compiler-libs.v0.12.4
-> installed ocaml_intrinsics.v0.16.2
-> retrieved ocp-indent.1.9.0  (https://opam.ocaml.org/cache)
-> retrieved parsexp.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_assert.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_base.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_bench.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_bin_prot.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_cold.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_compare.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_custom_printf.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_derivers.1.2.1  (https://opam.ocaml.org/cache)
-> retrieved ppx_disable_unused_warnings.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_enumerate.v0.16.0  (https://opam.ocaml.org/cache)
-> installed ppx_derivers.1.2.1
-> retrieved ppx_expect.v0.16.2  (https://opam.ocaml.org/cache)
-> retrieved ppx_fields_conv.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_fixed_literal.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_globalize.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_hash.v0.16.0  (https://opam.ocaml.org/cache)
-> installed parsexp.v0.16.0
-> retrieved ppx_here.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_ignore_instrumentation.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_inline_test.v0.16.1  (https://opam.ocaml.org/cache)
-> retrieved ppx_jane.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_let.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_log.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_module_timer.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_optcomp.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_optional.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_pipebang.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_sexp_conv.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_sexp_message.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_sexp_value.v0.16.0  (https://opam.ocaml.org/cache)
-> installed ocamlfind.1.9.8
-> installed ocamlbuild.0.16.1
-> retrieved ppx_stable.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_stable_witness.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_string.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_tydi.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_typerep_conv.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_variants_conv.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved ppxlib.0.35.0  (https://opam.ocaml.org/cache)
-> installed menhir.20260209
-> retrieved re.1.14.0  (https://opam.ocaml.org/cache)
-> retrieved sexp_pretty.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved sexplib.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved spawn.v0.17.0  (https://opam.ocaml.org/cache)
-> retrieved splittable_random.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved stdlib-shims.0.3.0  (https://opam.ocaml.org/cache)
-> retrieved time_now.v0.16.0  (https://opam.ocaml.org/cache)
-> retrieved timezone.v0.16.0  (https://opam.ocaml.org/cache)
-> installed stdlib-shims.0.3.0
-> installed spawn.v0.17.0
-> retrieved topkg.1.1.1  (https://opam.ocaml.org/cache)
-> retrieved typerep.v0.16.0  (https://opam.ocaml.org/cache)
-> installed sexplib.v0.16.0
-> installed re.1.14.0
-> retrieved uucp.17.0.0  (https://opam.ocaml.org/cache)
-> retrieved uuseg.17.0.0  (https://opam.ocaml.org/cache)
-> retrieved uutf.1.0.4  (https://opam.ocaml.org/cache)
-> retrieved variantslib.v0.16.0  (https://opam.ocaml.org/cache)
-> installed typerep.v0.16.0
-> removed   merge-fmt.0.4
-> removed   cmdliner.2.1.0
-> installed cmdliner.1.3.0
-> installed variantslib.v0.16.0
-> installed ocp-indent.1.9.0
-> installed topkg.1.1.1
-> installed uutf.1.0.4
-> installed astring.0.8.5
-> installed fpath.0.7.3
-> installed ppxlib.0.35.0
-> installed ppx_globalize.v0.16.0
-> installed ppx_optcomp.v0.16.0
-> installed ppx_enumerate.v0.16.0
-> installed ppx_tydi.v0.16.0
-> installed ppx_cold.v0.16.0
-> installed ppx_disable_unused_warnings.v0.16.0
-> installed ppx_compare.v0.16.0
-> installed ppx_here.v0.16.0
-> installed ppx_stable_witness.v0.16.0
-> installed ppx_typerep_conv.v0.16.0
-> installed ppx_variants_conv.v0.16.0
-> installed ppx_fields_conv.v0.16.0
-> installed ppx_stable.v0.16.0
-> installed ppx_pipebang.v0.16.0
-> installed ppx_ignore_instrumentation.v0.16.0
-> installed ppx_fixed_literal.v0.16.0
-> installed ppx_optional.v0.16.0
-> installed ppx_sexp_conv.v0.16.0
-> installed ppx_let.v0.16.0
-> installed ppx_hash.v0.16.0
-> installed ppx_assert.v0.16.0
-> installed ppx_sexp_value.v0.16.0
-> installed ppx_sexp_message.v0.16.0
-> installed ppx_custom_printf.v0.16.0
-> installed ppx_base.v0.16.0
-> installed ppx_log.v0.16.0
-> installed jst-config.v0.16.0
-> installed sexp_pretty.v0.16.0
-> installed ppx_string.v0.16.0
-> installed bin_prot.v0.16.0
-> installed time_now.v0.16.0
-> installed ppx_bin_prot.v0.16.0
-> installed ppx_module_timer.v0.16.0
-> installed ppx_inline_test.v0.16.1
-> installed uucp.17.0.0
-> installed ppx_bench.v0.16.0
-> installed ppx_expect.v0.16.2
-> installed uuseg.17.0.0
-> installed splittable_random.v0.16.0
-> installed base_quickcheck.v0.16.0
-> installed ppx_jane.v0.16.0
-> installed int_repr.v0.16.0
-> installed ocamlformat-lib.0.27.0
-> installed base_bigstring.v0.16.0
-> installed ocamlformat.0.27.0
-> installed core.v0.16.2
-> installed timezone.v0.16.0
-> installed expect_test_helpers_core.v0.16.0
-> installed core_kernel.v0.16.0
-> installed core_unix.v0.16.0
-> installed merge-fmt.0.4
Done.

<><> ocp-indent.1.9.0 installed successfully ><><><><><><><><><><><><><><><><><>
=> This package requires additional configuration for use in editors. Install package 'user-setup', or manually:

   * for Emacs, add these lines to ~/.emacs:
     (add-to-list 'load-path "/home/opam/.opam/4.14/share/emacs/site-lisp")
     (require 'ocp-indent)

   * for Vim, add this line to ~/.vimrc:
     set rtp^="/home/opam/.opam/4.14/share/ocp-indent/vim"
# To update the current shell environment, run: eval $(opam env)
2026-03-21 21:43.26 ---> saved as "94f20f5ed91471bd5b6b0b88608fa9bd653f7475db59db585241a9846295bf14"

/home/opam: (run (shell  "opam reinstall --with-test --verbose merge-fmt.0.4;\
                        \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 \"$pkg\" != 'merge-fmt.0.4' && partial_fails=\"$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:
=== recompile 1 package
  - recompile merge-fmt 0.4

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Processing  1/4: [merge-fmt.0.4: extract]
-> retrieved merge-fmt.0.4  (cached)
Processing  2/4: [merge-fmt: dune build]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "dune" "build" "-p" "merge-fmt" "-j" "255" "@install" (CWD=/home/opam/.opam/4.14/.opam-switch/build/merge-fmt.0.4)
-> compiled  merge-fmt.0.4
-> removed   merge-fmt.0.4
-> installed merge-fmt.0.4
Done.
# To update the current shell environment, run: eval $(opam env)
2026-03-21 21:43.32 ---> saved as "c08155c27567abf9364b17617fb04ac8da60f99c007d6ee497dccf843ca74fe7"
Job succeeded
2026-03-21 21:43.38: Job succeeded