(for PR #29068)

2026-03-19 08:08.42: New job: build matcha.0.1.0, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29068/head (199fe28cd74a5ffe7f2f116239daf07e8ca8c28f)
                              on ubuntu-24.04-ocaml-4.14/riscv64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29068/head" && git reset --hard 199fe28c
git fetch origin master
git merge --no-edit 9f189ca4f94fbb5f0045820bf3c4ffafb21145ef
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:ubuntu-24.04-ocaml-4.14@sha256:8d0071c48b623695c81dfcb3cba2ec2d6c693760ec440dd21e8c9840206ffd7e
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn matcha.0.1.0 0.1.0
RUN opam reinstall matcha.0.1.0; \
    res=$?; \
    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 "\"ubuntu-24.04\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'matcha.0.1.0' && partial_fails="$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 .

2026-03-19 08:08.42: Using cache hint "ocaml/opam:ubuntu-24.04-ocaml-4.14@sha256:8d0071c48b623695c81dfcb3cba2ec2d6c693760ec440dd21e8c9840206ffd7e-matcha.0.1.0-199fe28cd74a5ffe7f2f116239daf07e8ca8c28f"
2026-03-19 08:08.42: Using OBuilder spec:
((from ocaml/opam:ubuntu-24.04-ocaml-4.14@sha256:8d0071c48b623695c81dfcb3cba2ec2d6c693760ec440dd21e8c9840206ffd7e)
 (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 matcha.0.1.0 0.1.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall matcha.0.1.0;\
             \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 \"\\\"ubuntu-24.04\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'matcha.0.1.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-03-19 08:08.42: Waiting for resource in pool OCluster
2026-03-19 08:08.44: Waiting for worker…
2026-03-19 08:21.48: Got resource from pool OCluster
Building on riscv-bm-01.sw.ci.dev
Updating files:  10% (1919/18505)
Updating files:  11% (2036/18505)
Updating files:  12% (2221/18505)
Updating files:  13% (2406/18505)
Updating files:  14% (2591/18505)
Updating files:  15% (2776/18505)
Updating files:  16% (2961/18505)
Updating files:  17% (3146/18505)
Updating files:  18% (3331/18505)
Updating files:  19% (3516/18505)
Updating files:  20% (3701/18505)
Updating files:  21% (3887/18505)
Updating files:  22% (4072/18505)
Updating files:  22% (4080/18505)
Updating files:  23% (4257/18505)
Updating files:  24% (4442/18505)
Updating files:  25% (4627/18505)
Updating files:  26% (4812/18505)
Updating files:  27% (4997/18505)
Updating files:  28% (5182/18505)
Updating files:  29% (5367/18505)
Updating files:  30% (5552/18505)
Updating files:  31% (5737/18505)
Updating files:  32% (5922/18505)
Updating files:  33% (6107/18505)
Updating files:  34% (6292/18505)
Updating files:  35% (6477/18505)
Updating files:  35% (6528/18505)
Updating files:  36% (6662/18505)
Updating files:  37% (6847/18505)
Updating files:  38% (7032/18505)
Updating files:  39% (7217/18505)
Updating files:  40% (7402/18505)
Updating files:  41% (7588/18505)
Updating files:  42% (7773/18505)
Updating files:  43% (7958/18505)
Updating files:  44% (8143/18505)
Updating files:  45% (8328/18505)
Updating files:  46% (8513/18505)
Updating files:  46% (8589/18505)
Updating files:  47% (8698/18505)
Updating files:  48% (8883/18505)
Updating files:  49% (9068/18505)
Updating files:  50% (9253/18505)
Updating files:  51% (9438/18505)
Updating files:  52% (9623/18505)
Updating files:  53% (9808/18505)
Updating files:  54% (9993/18505)
Updating files:  55% (10178/18505)
Updating files:  56% (10363/18505)
Updating files:  57% (10548/18505)
Updating files:  57% (10638/18505)
Updating files:  58% (10733/18505)
Updating files:  59% (10918/18505)
Updating files:  60% (11103/18505)
Updating files:  61% (11289/18505)
Updating files:  62% (11474/18505)
Updating files:  63% (11659/18505)
Updating files:  64% (11844/18505)
Updating files:  65% (12029/18505)
Updating files:  66% (12214/18505)
Updating files:  66% (12389/18505)
Updating files:  67% (12399/18505)
Updating files:  68% (12584/18505)
Updating files:  69% (12769/18505)
Updating files:  70% (12954/18505)
Updating files:  71% (13139/18505)
Updating files:  72% (13324/18505)
Updating files:  73% (13509/18505)
Updating files:  74% (13694/18505)
Updating files:  75% (13879/18505)
Updating files:  75% (13917/18505)
Updating files:  76% (14064/18505)
Updating files:  77% (14249/18505)
Updating files:  78% (14434/18505)
Updating files:  79% (14619/18505)
Updating files:  80% (14804/18505)
Updating files:  81% (14990/18505)
Updating files:  82% (15175/18505)
Updating files:  83% (15360/18505)
Updating files:  84% (15545/18505)
Updating files:  85% (15730/18505)
Updating files:  85% (15812/18505)
Updating files:  86% (15915/18505)
Updating files:  87% (16100/18505)
Updating files:  88% (16285/18505)
Updating files:  89% (16470/18505)
Updating files:  90% (16655/18505)
Updating files:  91% (16840/18505)
Updating files:  92% (17025/18505)
Updating files:  93% (17210/18505)
Updating files:  94% (17395/18505)
Updating files:  95% (17580/18505)
Updating files:  96% (17765/18505)
Updating files:  96% (17900/18505)
Updating files:  97% (17950/18505)
Updating files:  98% (18135/18505)
Updating files:  99% (18320/18505)
Updating files: 100% (18505/18505)
Updating files: 100% (18505/18505), done.
HEAD is now at 79d2d92c08 [new release] dune (18 packages) (3.22.0)
HEAD is now at 9f189ca4f9 Merge pull request #29562 from shonfeder/release-dune-3.22.0
Merge made by the 'ort' strategy.
 packages/matcha/matcha.0.1.0/opam | 40 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 packages/matcha/matcha.0.1.0/opam

(from ocaml/opam:ubuntu-24.04-ocaml-4.14@sha256:8d0071c48b623695c81dfcb3cba2ec2d6c693760ec440dd21e8c9840206ffd7e)
2026-03-19 08:22.12 ---> using "ea217873466a32995897219deecbfb415f5b65e57327eb6d6896918b841e3329" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-03-19 08:22.12 ---> using "1d9d8bb73c574e4bf8c49f0e16cd2d73a709eb545df83e8ec4216b08e7dd779d" 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
2026-03-19 08:22.12 ---> using "e4aaa80b431300b138a1ad34bb1021bcb96de2357df7d00318313658f7b87b41" 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=riscv64 os=linux os-distribution=ubuntu os-version=24.04
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 3
# 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
2026-03-19 08:22.12 ---> using "984c3ad735e69406573e706cd6e5591fcd2dd04d05210e93bab09f234173355c" 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/"))
2026-03-19 08:22.12 ---> using "ba45d311c07b4e21005eba9633c486473005a530f8a9e3b883ad7d6112a67255" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-03-19 08:22.39 ---> saved as "a6290ced4934fd334acc89d904223cdc8da431893a20d9f7b4bdf1c46f86961f"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-03-19 08:24.14 ---> saved as "e1cee68d421df057f44a427b5786e322b12171c8a14e84e1f42794b36ad24ccb"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Hit:1 http://ports.ubuntu.com/ubuntu-ports noble InRelease
- Get:2 http://ports.ubuntu.com/ubuntu-ports noble-updates InRelease [126 kB]
- Get:3 http://ports.ubuntu.com/ubuntu-ports noble-backports InRelease [126 kB]
- Get:4 http://ports.ubuntu.com/ubuntu-ports noble-security InRelease [126 kB]
- Get:5 http://ports.ubuntu.com/ubuntu-ports noble-updates/restricted riscv64 Packages [11.0 kB]
- Get:6 http://ports.ubuntu.com/ubuntu-ports noble-updates/main riscv64 Packages [949 kB]
- Get:7 http://ports.ubuntu.com/ubuntu-ports noble-updates/universe riscv64 Packages [1525 kB]
- Get:8 http://ports.ubuntu.com/ubuntu-ports noble-backports/main riscv64 Packages [49.4 kB]
- Get:9 http://ports.ubuntu.com/ubuntu-ports noble-backports/multiverse riscv64 Packages [695 B]
- Get:10 http://ports.ubuntu.com/ubuntu-ports noble-backports/universe riscv64 Packages [29.5 kB]
- Get:11 http://ports.ubuntu.com/ubuntu-ports noble-security/restricted riscv64 Packages [8714 B]
- Get:12 http://ports.ubuntu.com/ubuntu-ports noble-security/universe riscv64 Packages [974 kB]
- Get:13 http://ports.ubuntu.com/ubuntu-ports noble-security/main riscv64 Packages [623 kB]
- Fetched 4549 kB in 2s (2040 kB/s)
- Reading package lists...
- 
2026-03-19 08:24.23 ---> saved as "863c24c79ebec0791091774eb12c73c35cfb934a10684bb639f5d9b1a039b447"

/home/opam: (run (shell "opam pin add -k version -yn matcha.0.1.0 0.1.0"))
matcha is now pinned to version 0.1.0
2026-03-19 08:24.26 ---> saved as "07e46c98228860247fd0257829c81a9a808d8f3c45c51c568e0613897bf76331"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall matcha.0.1.0;\
                        \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 \"\\\"ubuntu-24.04\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'matcha.0.1.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
matcha.0.1.0 is not installed. Install it? [Y/n] y
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler = 4.14.2
    - matcha -> ocaml >= 5.3.0 -> ocaml-variants < 5.6.1~
    You can temporarily relax the switch invariant with `--update-invariant'
  * Missing dependency:
    - matcha -> ocaml >= 5.3.0 -> ocaml-variants < 5.3.1~ -> ocaml-beta
    unmet availability conditions: 'enable-ocaml-beta-repository'
  * Missing dependency:
    - matcha -> ocaml >= 5.3.0 -> ocaml-variants < 5.3.1~ -> system-msvc
    unmet availability conditions: 'os = "win32"'

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall matcha.0.1.0;
        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 "\"ubuntu-24.04\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'matcha.0.1.0' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2026-03-19 08:25.38: Job failed: Failed: Build failed
2026-03-19 08:25.38: Log analysis:
2026-03-19 08:25.38: >>> 
No solution found, exiting
 (score = 100)
2026-03-19 08:25.38: [SKIP] Package not available