(not at the head of any monitored branch or PR)
2026-05-06 16:08.21: New job: build mfat.0.0.1~beta1, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29866/head (6d7e98a672c81f54f403d7276f03661f81f096ec)
                              on debian-13-ocaml-4.14-flambda/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29866/head" && git reset --hard 6d7e98a6
git fetch origin master
git merge --no-edit 14640dc0cb5ad592a5350f7e5ba29e794675f078
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.14-flambda@sha256:1d5bc4179c416a17943ed1b7b8103055a44f5ad4fe7cb28660695b83b897797b
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn mfat.0.0.1~beta1 0.0.1~beta1
RUN opam reinstall mfat.0.0.1~beta1; \
    res=$?; \
    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 "$pkg" != 'mfat.0.0.1~beta1' && partial_fails="$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 .

2026-05-06 16:08.21: Using cache hint "ocaml/opam:debian-13-ocaml-4.14-flambda@sha256:1d5bc4179c416a17943ed1b7b8103055a44f5ad4fe7cb28660695b83b897797b-mfat.0.0.1~beta1-6d7e98a672c81f54f403d7276f03661f81f096ec"
2026-05-06 16:08.21: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.14-flambda@sha256:1d5bc4179c416a17943ed1b7b8103055a44f5ad4fe7cb28660695b83b897797b)
 (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 mfat.0.0.1~beta1 0.0.1~beta1"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall mfat.0.0.1~beta1;\
             \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 \"$pkg\" != 'mfat.0.0.1~beta1' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-05-06 16:08.21: Waiting for resource in pool OCluster
2026-05-06 16:08.22: Waiting for worker…
2026-05-06 16:08.22: Got resource from pool OCluster
Building on eumache.caelum.ci.dev
All commits already cached
HEAD is now at 14640dc0cb Merge pull request #29859 from dinosaure/release-httpcats-v0.3.0
Updating 14640dc0cb..6d7e98a672
Fast-forward
 packages/mfat/mfat.0.0.1~beta1/opam | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 packages/mfat/mfat.0.0.1~beta1/opam

(from ocaml/opam:debian-13-ocaml-4.14-flambda@sha256:1d5bc4179c416a17943ed1b7b8103055a44f5ad4fe7cb28660695b83b897797b)
Unable to find image 'ocaml/opam:debian-13-ocaml-4.14-flambda@sha256:1d5bc4179c416a17943ed1b7b8103055a44f5ad4fe7cb28660695b83b897797b' locally
docker.io/ocaml/opam@sha256:1d5bc4179c416a17943ed1b7b8103055a44f5ad4fe7cb28660695b83b897797b: Pulling from ocaml/opam
3b32e3bb7338: Already exists
0a2047d92c36: Already exists
6468c8739f79: Already exists
dc1c52e586c3: Already exists
62b886ae38ec: Already exists
c217a15c852c: Already exists
1631c3f40e56: Already exists
fec1b7aa2529: Already exists
46c2f2e52299: Already exists
dfd625f9488b: Already exists
a92b2bbc3601: Already exists
21b06961f9ce: Already exists
56ea7bb8517a: Already exists
f88fa5fac715: Already exists
ef860ccaf48a: Already exists
7299894d19a3: Already exists
cfd8a5bbbbad: Already exists
458be87cd8e2: Already exists
d25c8303c40a: Already exists
0dd0c180412f: Already exists
3cce6b8d3022: Already exists
48811119dc00: Already exists
4f4fb700ef54: Already exists
9274adcd9010: Already exists
d7f1811cc461: Already exists
9883b0c98d0f: Already exists
9be0dcfb3ea0: Already exists
b64ebb6ea54f: Already exists
7f7a3980142e: Already exists
c4dd42c2d373: Already exists
bd37488f4682: Already exists
efaea8bd3292: Already exists
d08303018370: Already exists
ccb64fc6d165: Already exists
df5461936c45: Already exists
4ad6d8be4e6f: Already exists
ad49b5bd4234: Already exists
3cca9ef56161: Already exists
4917de64b7d3: Already exists
0ce36fc523dd: Already exists
ec347e98f03b: Already exists
d09c5de6ce5c: Pulling fs layer
b93dff79e061: Pulling fs layer
7e80fcb4fcc3: Pulling fs layer
95e6b278d4ff: Pulling fs layer
95e6b278d4ff: Waiting
b93dff79e061: Download complete
7e80fcb4fcc3: Verifying Checksum
7e80fcb4fcc3: Download complete
95e6b278d4ff: Download complete
d09c5de6ce5c: Verifying Checksum
d09c5de6ce5c: Download complete
d09c5de6ce5c: Pull complete
b93dff79e061: Pull complete
7e80fcb4fcc3: Pull complete
95e6b278d4ff: Pull complete
Digest: sha256:1d5bc4179c416a17943ed1b7b8103055a44f5ad4fe7cb28660695b83b897797b
Status: Downloaded newer image for ocaml/opam@sha256:1d5bc4179c416a17943ed1b7b8103055a44f5ad4fe7cb28660695b83b897797b
2026-05-06 16:09.08 ---> using "d82293bc556b553fa61b673bb2c710e3d173e4602ea083dd373d80e13bc0e1ae" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-05-06 16:09.08 ---> using "79c9df01834552911f4ebd243c0d599b22f7104d09c579a58adabf26ed01bfcc" 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
2026-05-06 16:09.08 ---> using "405876ff6a50e65a933dc92ec322ec31c339e1ed402f2e81e15e6c87acf09316" 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         2.5.1
# 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       4.14
# invariant            ["ocaml-options-only-flambda"]
# compiler-packages    ocaml-option-flambda.1, ocaml-options-only-flambda.1, ocaml-variants.4.14.3+options
# 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       4.14.3+options+flambda
2026-05-06 16:09.08 ---> using "3d72625e7517e9cc70fd28919e9678065f5b3400370391b845d4c2caeb74dde8" 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/"))
2026-05-06 16:09.08 ---> using "55a4b627d2fc99542a43f90f5f12bfba8c07b90704b6389dea12c1b6a159fee0" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-05-06 16:09.18 ---> saved as "0d233b1409624e06a5d61d2da1f61b25766188b6afff19a41e6f74e08ae2f547"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-05-06 16:09.38 ---> saved as "44f296af88dc5bd555e88d9b1895ee4c0af4f12ae87e57dbc55feb047918c949"

/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 [132 kB]
- Fetched 222 kB in 0s (1947 kB/s)
- Reading package lists...
- 
2026-05-06 16:09.40 ---> saved as "f617fd648ea30268abef931ff9db7c79b02c2a0698258ed2dd16d2e19c734eab"

/home/opam: (run (shell "opam pin add -k version -yn mfat.0.0.1~beta1 0.0.1~beta1"))
mfat is now pinned to version 0.0.1~beta1
2026-05-06 16:09.40 ---> saved as "b49a15f5a0830c20b5c7c15eef507b9f702430e71fe01c6cb42a040dc56ddc30"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall mfat.0.0.1~beta1;\
                        \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 \"$pkg\" != 'mfat.0.0.1~beta1' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
mfat.0.0.1~beta1 is not installed. Install it? [Y/n] y
  * No agreement on the version of ocaml:
    - (invariant) -> ocaml-options-only-flambda -> ocaml-option-flambda -> ocaml-variants >= 4.12.0~ -> ocaml = 4.14.3
    - mfat -> ocaml >= 5.3.0
    You can temporarily relax the switch invariant with `--update-invariant'
  * Missing dependency:
    - mfat -> ocaml >= 5.3.0 -> dkml-base-compiler >= 5.6.0~ | ocaml-base-compiler >= 5.6.0 | ocaml-system >= 5.6.0~ | ocaml-variants >= 5.6.0~
    no matching version
    no matching version
    no matching version
    not available because the package is pinned to version 4.14.3+options

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall mfat.0.0.1~beta1;
        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 "$pkg" != 'mfat.0.0.1~beta1' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2026-05-06 16:09.53: Job failed: Failed: Build failed
2026-05-06 16:09.53: Log analysis:
2026-05-06 16:09.53: >>> 
No solution found, exiting
 (score = 100)
2026-05-06 16:09.53: [SKIP] Package not available