Build:
  1. 0
2026-01-22 21:52.32: New job: test intel_hex.0.2, using opam 2.2
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29266/head (ae1e7f899409044c5ce16095c05689b61dacec3c)
                              on debian-13-ocaml-5.4/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29266/head" && git reset --hard ae1e7f89
git fetch origin master
git merge --no-edit 69f4d66596cd0a420dffdd43036a9eeb0b410d84
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-5.4@sha256:9f4103f7d94b5db36adc57e1243e7aafbc77118b03f3c64c9d783f6875957bd3
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-2.2 /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn intel_hex.0.2 0.2
RUN opam reinstall intel_hex.0.2; \
    res=$?; \
    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 "\"debian-13\""; 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 "\"debian-13\""; 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:debian-13-ocaml-5.4@sha256:9f4103f7d94b5db36adc57e1243e7aafbc77118b03f3c64c9d783f6875957bd3-intel_hex.0.2-ae1e7f899409044c5ce16095c05689b61dacec3c"
2026-01-22 21:52.32: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-5.4@sha256:9f4103f7d94b5db36adc57e1243e7aafbc77118b03f3c64c9d783f6875957bd3)
 (user (uid 1000) (gid 1000))
 (workdir /home/opam)
 (run (shell "sudo ln -f /usr/bin/opam-2.2 /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 \"\\\"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 \"$pkg\" != 'intel_hex.0.2' && partial_fails=\"$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 \"\\\"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 \"$pkg\" != 'intel_hex.0.2' && partial_fails=\"$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 07:38.24: Waiting for worker…
2026-01-23 07:43.27: Got resource from pool OCluster
Building on toxis.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:debian-13-ocaml-5.4@sha256:9f4103f7d94b5db36adc57e1243e7aafbc77118b03f3c64c9d783f6875957bd3)
2026-01-23 07:43.33 ---> using "85f72cf1fe4e2d7307f2dbfaf295ab13f00915a95088b79c0422ecbd77383032" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-2.2 /usr/bin/opam"))
2026-01-23 07:43.33 ---> using "c9ba0f0593727f4019135c117edef69341262736ce7ad241885b8e71e99c19ed" 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 development 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 07:44.03 ---> saved as "47a4079cba44d73187dae724da3e59bf125fef4bc8b997036fda7c65d6198caa"

/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         2.2.1 (01e9a24a61e23e42d513b4b775d8c30c807439b2)
# self-upgrade         no
# system               arch=x86_64 os=linux os-distribution=debian os-version=13
# solver               builtin-0install
# install-criteria     
# upgrade-criteria     
# jobs                 71
# 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 07:44.04 ---> saved as "e999c1dee9f17c14e2184bf5e58551d1cb549ad69f898ff2dba8268a1d19cd18"

/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 07:44.15 ---> saved as "a1b3f2c7beb9e655a25b52a174965c5a18a7feb8605a88e13b5405cc8e068e29"

/home/opam: (copy (src .) (dst opam-repository/))
2026-01-23 07:44.41 ---> saved as "2964cbe691395d6d678f1c719b4a65d883e7d7c3c2eb466630994a4ceb54e932"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-01-23 07:45.05 ---> saved as "2a42462a1cd0e7379f533824c520511ff04bf954094ed3cc305ceaf9eca26151"

/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 [9670 kB]
- Get:5 http://deb.debian.org/debian-security trixie-security/main amd64 Packages [97.9 kB]
- Fetched 9999 kB in 1s (7196 kB/s)
- Reading package lists...
- 
2026-01-23 07:45.07 ---> saved as "17b21994919ef299d9010c202c5c70a8111f63c958790ef1ac030e560b89042a"

/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 07:45.08 ---> saved as "b2add0324f1e2ec8314ec5692dd9a33aa726b3da5e2c2bbe9d1696df381d63a3"

/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 \"\\\"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 \"$pkg\" != 'intel_hex.0.2' && partial_fails=\"$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
+- 
# Run eval $(opam env) to update the current shell environment

The former state can be restored with:
    /usr/bin/opam switch import "/home/opam/.opam/5.4/.opam-switch/backup/state-20260123074509.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 "\"debian-13\""; 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 07:45.57: Job failed: Failed: Build failed
2026-01-23 07:45.57: Log analysis:
2026-01-23 07:45.57: >>> 
[ERROR] Failed to get sources of intel_hex.0.2: Bad checksum
 (score = 25)
2026-01-23 07:45.57: Failed to get sources of intel_hex.0.2: Bad checksum