Build:
  1. 0
2026-05-20 10:22.59: New job: build lrgrep.0.9, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29928/head (07fbcc3b99d47734688318c6e2971cce19794907)
                              on centos-10-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29928/head" && git reset --hard 07fbcc3b
git fetch origin master
git merge --no-edit 64a847a29e96527a72f3e45822610f25e7ad0a40
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:centos-10-ocaml-4.14@sha256:2e2bd1982e0302d4c25a786a4a321827718e54aab664002a930ed0285d8ba1c9
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn lrgrep.0.9 0.9
RUN opam reinstall lrgrep.0.9; \
    res=$?; \
    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 "\"centos-10\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'lrgrep.0.9' && partial_fails="$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 .

2026-05-20 10:22.59: Using cache hint "ocaml/opam:centos-10-ocaml-4.14@sha256:2e2bd1982e0302d4c25a786a4a321827718e54aab664002a930ed0285d8ba1c9-lrgrep.0.9-07fbcc3b99d47734688318c6e2971cce19794907"
2026-05-20 10:22.59: Using OBuilder spec:
((from ocaml/opam:centos-10-ocaml-4.14@sha256:2e2bd1982e0302d4c25a786a4a321827718e54aab664002a930ed0285d8ba1c9)
 (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 lrgrep.0.9 0.9"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall lrgrep.0.9;\
             \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 \"\\\"centos-10\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'lrgrep.0.9' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-05-20 10:22.59: Waiting for resource in pool OCluster
2026-05-20 10:23.00: Waiting for worker…
2026-05-20 10:23.00: Got resource from pool OCluster
Building on bremusa.ocamllabs.io
All commits already cached
HEAD is now at 64a847a29e Merge pull request #29924 from jmid/add-dune-3.23.0-ocaml-bound
Updating 64a847a29e..07fbcc3b99
Fast-forward
 packages/lrgrep/lrgrep.0.9/opam | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 packages/lrgrep/lrgrep.0.9/opam

(from ocaml/opam:centos-10-ocaml-4.14@sha256:2e2bd1982e0302d4c25a786a4a321827718e54aab664002a930ed0285d8ba1c9)
Unable to find image 'ocaml/opam:centos-10-ocaml-4.14@sha256:2e2bd1982e0302d4c25a786a4a321827718e54aab664002a930ed0285d8ba1c9' locally
docker.io/ocaml/opam@sha256:2e2bd1982e0302d4c25a786a4a321827718e54aab664002a930ed0285d8ba1c9: Pulling from ocaml/opam
fd8e0b0eefd7: Already exists
db8861ce9493: Already exists
50a2d95a38ed: Already exists
31460203772c: Already exists
6d183a4d8cb8: Already exists
8a40fa767f7d: Already exists
f6946abca931: Already exists
0afd7ea846ca: Already exists
9eedfa159b6c: Already exists
60d233553a71: Already exists
6a73bd7d349c: Already exists
413542ed97af: Already exists
9533f26799d5: Already exists
7198f65fde0c: Already exists
e94def20e9fe: Already exists
753a93dc1978: Already exists
a45513c1d034: Already exists
a45513c1d034: Already exists
76a5dbbfab37: Already exists
fe3b5f0bb8a6: Already exists
707a56058504: Already exists
ff69d9bd12a0: Already exists
4f4fb700ef54: Already exists
d941dc87236e: Already exists
6143c2fe658a: Already exists
aa8100e426ff: Already exists
53e9e21dfc25: Already exists
072c8e87be5f: Already exists
73aacf3ef47e: Already exists
f5fadd6977f8: Already exists
487ab55ffd6a: Already exists
4bc4ef1a2d87: Already exists
392dff9718e0: Already exists
cd5bb21a1ac5: Already exists
8a887fc73b5b: Already exists
3375901daef5: Already exists
efbe2cac90af: Already exists
82a4c0c166a3: Already exists
9ba826da2507: Already exists
4f4fb700ef54: Already exists
ffc9f33c8781: Already exists
79b0aebde02e: Pulling fs layer
870a9f178e03: Pulling fs layer
3d0c650c5198: Pulling fs layer
aeeb4a3564f2: Pulling fs layer
aeeb4a3564f2: Waiting
870a9f178e03: Download complete
3d0c650c5198: Download complete
aeeb4a3564f2: Download complete
79b0aebde02e: Verifying Checksum
79b0aebde02e: Download complete
79b0aebde02e: Pull complete
870a9f178e03: Pull complete
3d0c650c5198: Pull complete
aeeb4a3564f2: Pull complete
Digest: sha256:2e2bd1982e0302d4c25a786a4a321827718e54aab664002a930ed0285d8ba1c9
Status: Downloaded newer image for ocaml/opam@sha256:2e2bd1982e0302d4c25a786a4a321827718e54aab664002a930ed0285d8ba1c9
2026-05-20 10:25.34 ---> saved as "2122e11e71147d96ed433cab323d5a13dbfedddfd8d58bd5e62d965b8f898fb2"

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-05-20 10:25.34 ---> saved as "0d2b0eb6d07635bcfa99bfbaa96c814deeb151889cf6bfb8e835115546fded8a"

/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 2.1 to version 2.2, which can't be reverted.
You may want to back it up before going further.

[NOTE] The 'jobs' option was reset, its value was 1 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=1 --global
Continue? [Y/n] y
Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] no changes from git+file:///home/opam/opam-repository
2026-05-20 10:25.44 ---> saved as "b6645319da9e5d82d30fb6195c03c2f1c19106af421208acaa9a067b127a63c8"

/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=centos os-version=10
# 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-base-compiler" {= "4.14.3"}]
# compiler-packages    ocaml-base-compiler.4.14.3, 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       4.14.3
2026-05-20 10:25.45 ---> saved as "009dc25b314c4363bfc98265485369464c059235e8d766404a59dc2a2905f088"

/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/"))
2026-05-20 10:25.50 ---> saved as "6b00d1306b1ac92d551bedcc1189ad08bae9716ffe8e30e095d1149cd66a04c7"

/home/opam: (copy (src .) (dst opam-repository/))
2026-05-20 10:26.01 ---> saved as "eff46bcf89927c5224c4cc84507781b268e57d96af46091b53ff8abf1cd8646f"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-05-20 10:26.10 ---> saved as "46565bbc2eb397197c1cb4159868da5d7ffc7b416c51321da693a1e0b2caca66"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "yum" "makecache"
- CentOS Stream 10 - BaseOS                        60 kB/s |  14 kB     00:00    
- CentOS Stream 10 - BaseOS                        10 MB/s | 7.0 MB     00:00    
- CentOS Stream 10 - AppStream                    112 kB/s |  14 kB     00:00    
- CentOS Stream 10 - AppStream                    7.4 MB/s | 3.6 MB     00:00    
- CentOS Stream 10 - CRB                          106 kB/s |  14 kB     00:00    
- CentOS Stream 10 - CRB                          3.6 MB/s | 839 kB     00:00    
- CentOS Stream 10 - Extras packages              136 kB/s |  16 kB     00:00    
- Metadata cache created.
2026-05-20 10:26.16 ---> saved as "ed9420035496e11d24651cf3ae01a44d4e91d4a709a6c1965d532e25c58c36ac"

/home/opam: (run (shell "opam pin add -k version -yn lrgrep.0.9 0.9"))
lrgrep is now pinned to version 0.9
2026-05-20 10:26.17 ---> saved as "8e10ace1ba2288417d24470dd1152343791d10de5e1be4e7336c75b319580594"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall lrgrep.0.9;\
                        \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 \"\\\"centos-10\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'lrgrep.0.9' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
lrgrep.0.9 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 10 packages
  - install cmon      0.2          [required by lrgrep]
  - install dune      3.23.1       [required by lrgrep]
  - install grenier   0.16         [required by cmon]
  - install lrgrep    0.9 (pinned)
  - install menhir    20260209     [required by lrgrep]
  - install menhirCST 20260209     [required by menhir]
  - install menhirGLR 20260209     [required by menhir]
  - install menhirLib 20260209     [required by menhir]
  - install menhirSdk 20260209     [required by menhir]
  - install pprint    20230830     [required by cmon]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved cmon.0.2  (cached)
-> retrieved dune.3.23.1  (cached)
-> retrieved grenier.0.16  (cached)
-> retrieved lrgrep.0.9  (cached)
-> retrieved menhir.20260209, menhirCST.20260209, menhirGLR.20260209, menhirLib.20260209, menhirSdk.20260209  (cached)
-> retrieved pprint.20230830  (cached)
-> installed dune.3.23.1
-> installed menhirCST.20260209
-> installed grenier.0.16
-> installed pprint.20230830
-> installed menhirLib.20260209
-> installed menhirGLR.20260209
-> installed menhirSdk.20260209
-> installed cmon.0.2
-> installed menhir.20260209
[ERROR] The compilation of lrgrep.0.9 failed at "dune build -p lrgrep -j 71".

#=== ERROR while compiling lrgrep.0.9 =========================================#
# context              2.5.1 | linux/x86_64 | ocaml-base-compiler.4.14.3 | pinned(https://github.com/let-def/lrgrep/releases/download/v0.9/lrgrep-0.9.tbz)
# path                 ~/.opam/4.14/.opam-switch/build/lrgrep.0.9
# command              ~/.opam/opam-init/hooks/sandbox.sh build dune build -p lrgrep -j 71
# exit-code            1
# env-file             ~/.opam/log/lrgrep-7-b5d8a4.env
# output-file          ~/.opam/log/lrgrep-7-b5d8a4.out
### output ###
# (cd _build/default && /home/opam/.opam/4.14/bin/ocamlc.opt -w -40 -g -bin-annot -I src/command/.lrgrep_top.objs/byte -I /home/opam/.opam/4.14/lib/cmon -I /home/opam/.opam/4.14/lib/grenier/binder_introducer -I /home/opam/.opam/4.14/lib/grenier/fastdom -I /home/opam/.opam/4.14/lib/menhirSdk -I /home/opam/.opam/4.14/lib/pprint -I src/fix/.fix.objs/byte -I src/front/.front.objs/byte -I src/kernel/.kernel.objs/byte -I src/lrijkstra-utils/.lrijkstra_utils.objs/byte -I src/syntax/.syntax.objs/byte -I src/utils/.utils.objs/byte -I src/utils/bit_lib/.bit_lib.objs/byte -I src/valmari/.valmari.objs/byte -I support/.runtime.objs/byte -I support/.support.objs/byte -intf-suffix .ml -no-alias-deps -open Lrgrep_top__ -o src/command/.lrgrep_top.objs/byte/lrgrep_top.cmo -c -impl src/command/lrgrep_top.ml)
# File "src/command/lrgrep_top.ml", line 618, characters 16-29:
# 618 |         if not (List.is_empty cgr.sinks) then (
#                       ^^^^^^^^^^^^^
# Error: Unbound value List.is_empty
# (cd _build/default && /home/opam/.opam/4.14/bin/ocamlopt.opt -w -40 -g -I src/command/.lrgrep_top.objs/byte -I src/command/.lrgrep_top.objs/native -I /home/opam/.opam/4.14/lib/cmon -I /home/opam/.opam/4.14/lib/grenier/binder_introducer -I /home/opam/.opam/4.14/lib/grenier/fastdom -I /home/opam/.opam/4.14/lib/menhirSdk -I /home/opam/.opam/4.14/lib/pprint -I src/fix/.fix.objs/byte -I src/fix/.fix.objs/native -I src/front/.front.objs/byte -I src/front/.front.objs/native -I src/kernel/.kernel.objs/byte -I src/kernel/.kernel.objs/native -I src/lrijkstra-utils/.lrijkstra_utils.objs/byte -I src/lrijkstra-utils/.lrijkstra_utils.objs/native -I src/syntax/.syntax.objs/byte -I src/syntax/.syntax.objs/native -I src/utils/.utils.objs/byte -I src/utils/.utils.objs/native -I src/utils/bit_lib/.bit_lib.objs/byte -I src/utils/bit_lib/.bit_lib.objs/native -I src/valmari/.valmari.objs/byte -I src/valmari/.valmari.objs/native -I support/.runtime.objs/byte -I support/.runtime.objs/native -I support/.support.objs/byte -I support/.support.objs/native -intf-suffix .ml -no-alias-deps -open Lrgrep_top__ -o src/command/.lrgrep_top.objs/native/lrgrep_top.cmx -c -impl src/command/lrgrep_top.ml)
# File "src/command/lrgrep_top.ml", line 618, characters 16-29:
# 618 |         if not (List.is_empty cgr.sinks) then (
#                       ^^^^^^^^^^^^^
# Error: Unbound value List.is_empty



<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - build lrgrep 0.9
+- 
+- The following changes have been performed
| - install cmon      0.2
| - install dune      3.23.1
| - install grenier   0.16
| - install menhir    20260209
| - install menhirCST 20260209
| - install menhirGLR 20260209
| - install menhirLib 20260209
| - install menhirSdk 20260209
| - install pprint    20230830
+- 
# 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/4.14/.opam-switch/backup/state-20260520102618.export"
[WARNING] OPAMCONFIRMLEVEL was ignored because CLI 2.0 was requested and it was introduced in 2.1.
[WARNING] OPAMCONFIRMLEVEL was ignored because CLI 2.0 was requested and it was introduced in 2.1.
"/usr/bin/env" "bash" "-c" "opam reinstall lrgrep.0.9;
        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 "\"centos-10\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'lrgrep.0.9' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 1
2026-05-20 10:27.08: Job failed: Failed: Build failed
2026-05-20 10:27.08: Log analysis:
2026-05-20 10:27.08: >>> 
[ERROR] The compilation of lrgrep.0.9 failed at "dune build -p lrgrep -j 71".
 (score = 20)
2026-05-20 10:27.08: >>> 
# Error: Unbound value List.is_empty
 (score = 48)
2026-05-20 10:27.08: >>> 
# Error: Unbound value List.is_empty
 (score = 48)
2026-05-20 10:27.08: Unbound value List.is_empty