Build:
  1. 0
2026-01-22 21:52.32: New job: test intel_hex.0.2, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29266/head (ae1e7f899409044c5ce16095c05689b61dacec3c)
                              on fedora-43-ocaml-5.4/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29266/head" && git reset --hard ae1e7f89
git fetch origin master
git merge --no-edit 69f4d66596cd0a420dffdd43036a9eeb0b410d84
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:fedora-43-ocaml-5.4@sha256:1e157411a029dc296401a6334a17eeba0eb85cc40889b2644a1eb588b63a2ed2
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn intel_hex.0.2 0.2
RUN opam reinstall intel_hex.0.2; \
    res=$?; \
    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 "\"fedora-43\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'intel_hex.0.2' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
RUN (opam reinstall --with-test intel_hex.0.2) || true
RUN opam reinstall --with-test --verbose intel_hex.0.2; \
    res=$?; \
    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 "\"fedora-43\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'intel_hex.0.2' && partial_fails="$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 .

2026-01-22 21:52.32: Using cache hint "ocaml/opam:fedora-43-ocaml-5.4@sha256:1e157411a029dc296401a6334a17eeba0eb85cc40889b2644a1eb588b63a2ed2-intel_hex.0.2-ae1e7f899409044c5ce16095c05689b61dacec3c"
2026-01-22 21:52.32: Using OBuilder spec:
((from ocaml/opam:fedora-43-ocaml-5.4@sha256:1e157411a029dc296401a6334a17eeba0eb85cc40889b2644a1eb588b63a2ed2)
 (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 intel_hex.0.2 0.2"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall intel_hex.0.2;\
             \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 \"\\\"fedora-43\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'intel_hex.0.2' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (run (network host)
      (shell "(opam reinstall --with-test intel_hex.0.2) || true"))
 (run (shell  "opam reinstall --with-test --verbose intel_hex.0.2;\
             \n        res=$?;\
             \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 \"\\\"fedora-43\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'intel_hex.0.2' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-01-22 21:52.32: Waiting for resource in pool OCluster
2026-01-23 07:37.08: Waiting for worker…
2026-01-23 07:41.57: Got resource from pool OCluster
Building on odawa.caelum.ci.dev
All commits already cached
HEAD is now at 69f4d66596 Merge pull request #29159 from tbrk/release-ortools-9.14.0
Updating 69f4d66596..ae1e7f8994
Fast-forward
 packages/intel_hex/intel_hex.0.1/opam |  1 +
 packages/intel_hex/intel_hex.0.2/opam | 37 +++++++++++++++++++++++++++++++++++
 2 files changed, 38 insertions(+)
 create mode 100644 packages/intel_hex/intel_hex.0.2/opam

(from ocaml/opam:fedora-43-ocaml-5.4@sha256:1e157411a029dc296401a6334a17eeba0eb85cc40889b2644a1eb588b63a2ed2)
2026-01-23 07:42.00 ---> using "563e5d8b9f29a10b04d1d47babf031cb5cb9e45915fe6744769ea81d40437d42" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-01-23 07:42.00 ---> using "e8e94176244ec8681f2986dd72bd593f333bdbc2f88bbcb302834b35716aba50" 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
2026-01-23 07:42.00 ---> using "01fc7c0691f4733dae33afed3324b756f5adae23e649af9f578ac4e1c51367cd" 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=fedora os-version=43
# 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       5.4
# invariant            ["ocaml-base-compiler" {>= "5.4.0"}]
# compiler-packages    ocaml-base-compiler.5.4.0, ocaml-compiler.5.4.0, ocaml-options-vanilla.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/5.4/lib/ocaml/stublibs:/home/opam/.opam/5.4/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       5.4.0
2026-01-23 07:42.00 ---> using "a8eace04e44e96490d98dd71c337412f44cbe32748c5747a797e5f7ebdde76ca" 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/"))
2026-01-23 07:42.00 ---> using "eaeb7137240ddeb924bfa449d8aceee6856befa2e044a9e1bd9f4bcdc93f259a" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-01-23 07:42.05 ---> saved as "db18a7edec5e5ba77cd6bf77544113a2721e0cebbe0f2080c6efd53b20d50aaa"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-01-23 07:42.22 ---> saved as "91f5713dd4c66b6b94673f8662cdb0b4dff0b5984bcd9a3ac400e554208d1baf"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/sbin/sudo "yum" "makecache"
- Updating and loading repositories:
-  Fedora 43 - x86_64 - Updates           100% |  53.2 KiB/s |   6.0 KiB |  00m00s
- Repositories loaded.
- Metadata cache created.
2026-01-23 07:42.25 ---> saved as "480cf5de90a095aee95d6438213f62f5e927376dc5e06f69f100757f6cc32011"

/home/opam: (run (shell "opam pin add -k version -yn intel_hex.0.2 0.2"))
intel_hex is now pinned to version 0.2
2026-01-23 07:42.26 ---> saved as "cc1ae31fd2b942c5c255adc054b600d36ffa5f60437e5a3f36b1e9e5b1006ef1"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall intel_hex.0.2;\
                        \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 \"\\\"fedora-43\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'intel_hex.0.2' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
intel_hex.0.2 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 7 packages
  - install cstruct    6.2.0        [required by intel_hex]
  - install dune       3.21.0       [required by intel_hex]
  - install fmt        0.11.0       [required by cstruct]
  - install intel_hex  0.2 (pinned)
  - install ocamlbuild 0.16.1       [required by fmt]
  - install ocamlfind  1.9.8        [required by fmt]
  - install topkg      1.1.1        [required by fmt]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved cstruct.6.2.0  (cached)
-> retrieved dune.3.21.0  (cached)
-> retrieved fmt.0.11.0  (cached)
[ERROR] Failed to get sources of intel_hex.0.2: Bad checksum
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved topkg.1.1.1  (cached)
-> installed ocamlfind.1.9.8
-> installed ocamlbuild.0.16.1
-> installed topkg.1.1.1
-> installed fmt.0.11.0
-> installed dune.3.21.0
-> installed cstruct.6.2.0

#=== ERROR while fetching sources for intel_hex.0.2 ===========================#
OpamSolution.Fetch_fail("https://github.com/dx3mod/intel_hex/archive/refs/tags/0.2.tar.gz (Bad checksum, expected md5=d41d8cd98f00b204e9800998ecf8427e)")


<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - fetch intel_hex 0.2
+- 
+- The following changes have been performed
| - install cstruct    6.2.0
| - install dune       3.21.0
| - install fmt        0.11.0
| - install ocamlbuild 0.16.1
| - install ocamlfind  1.9.8
| - install topkg      1.1.1
+- 
# To update the current shell environment, run: eval $(opam env)

The former state can be restored with:
    /usr/bin/opam switch import "/home/opam/.opam/5.4/.opam-switch/backup/state-20260123074226.export"
"/usr/bin/env" "bash" "-c" "opam reinstall intel_hex.0.2;
        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 "\"fedora-43\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'intel_hex.0.2' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 40
2026-01-23 07:42.55: Job failed: Failed: Build failed
2026-01-23 07:42.55: Log analysis:
2026-01-23 07:42.55: >>> 
[ERROR] Failed to get sources of intel_hex.0.2: Bad checksum
 (score = 25)
2026-01-23 07:42.55: Failed to get sources of intel_hex.0.2: Bad checksum