2026-04-22 14:12.48: New job: test ocaml-multicore/reagents https://github.com/ocaml-multicore/reagents.git#refs/heads/main (5a385fde1e8b22950ce0afc41a104811d6615a3a) (linux-s390x:debian-13-5.4_s390x_opam-2.5) Base: ocaml/opam:debian-13-ocaml-5.4@sha256:861c06f54720da3b18d2bf59d8bf9344a8ed199bb58da47182f5d7998ae05400 Opam project build To reproduce locally: git clone --recursive "https://github.com/ocaml-multicore/reagents.git" -b "main" && cd "reagents" && git reset --hard 5a385fde cat > Dockerfile <<'END-OF-DOCKERFILE' FROM ocaml/opam:debian-13-ocaml-5.4@sha256:861c06f54720da3b18d2bf59d8bf9344a8ed199bb58da47182f5d7998ae05400 # debian-13-5.4_s390x_opam-2.5 USER 1000:1000 ENV CLICOLOR_FORCE="1" ENV OPAMCOLOR="always" WORKDIR /src RUN sudo ln -f /usr/bin/opam-2.5 /usr/bin/opam RUN opam init --reinit -ni RUN uname -rs && opam exec -- ocaml -version && opam --version WORKDIR /src RUN sudo chown opam /src RUN cd ~/opam-repository && (git cat-file -e 036883c5402b41e0d35f6b200245cc7c3a302395 || git fetch origin master) && git reset -q --hard 036883c5402b41e0d35f6b200245cc7c3a302395 && git log --no-decorate -n1 --oneline && opam update -u COPY --chown=1000:1000 reagents.opam ./ RUN opam pin add -yn reagents.dev './' RUN echo '(lang dune 3.0)' > './dune-project' ENV DEPS="alcotest.1.9.1 astring.0.8.5 backoff.0.1.1 base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base cmdliner.2.1.1 domain-local-await.1.0.1 domain-local-timeout.1.0.1 domain_shims.0.1.0 dune.3.22.2 fmt.0.11.0 kcas.0.7.0 kcas_data.0.7.0 lockfree.0.3.1 mtime.2.1.0 multicore-magic.2.3.2 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocamlbuild.0.16.1 ocamlfind.1.9.8 psq.0.2.1 re.1.14.0 seq.base stdlib-shims.0.3.0 thread-table.1.0.0 topkg.1.1.1 uutf.1.0.4 yojson.3.0.0" ENV CI="true" ENV OCAMLCI="true" RUN opam update --depexts && opam install --cli=2.5 --depext-only -y reagents.dev $DEPS RUN opam install $DEPS COPY --chown=1000:1000 . /src RUN opam exec -- dune build @install @check @runtest && rm -rf _build END-OF-DOCKERFILE docker build . END-REPRO-BLOCK 2026-04-22 14:12.48: Using cache hint "ocaml-multicore/reagents-ocaml/opam:debian-13-ocaml-5.4@sha256:861c06f54720da3b18d2bf59d8bf9344a8ed199bb58da47182f5d7998ae05400-debian-13-5.4_s390x_opam-2.5-a968c2d244011aa8faef99779c4bc7aa" 2026-04-22 14:12.48: Using OBuilder spec: ((from ocaml/opam:debian-13-ocaml-5.4@sha256:861c06f54720da3b18d2bf59d8bf9344a8ed199bb58da47182f5d7998ae05400) (comment debian-13-5.4_s390x_opam-2.5) (user (uid 1000) (gid 1000)) (env CLICOLOR_FORCE 1) (env OPAMCOLOR always) (workdir /src) (run (shell "sudo ln -f /usr/bin/opam-2.5 /usr/bin/opam")) (run (shell "opam init --reinit -ni")) (run (shell "uname -rs && opam exec -- ocaml -version && opam --version")) (workdir /src) (run (shell "sudo chown opam /src")) (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "cd ~/opam-repository && (git cat-file -e 036883c5402b41e0d35f6b200245cc7c3a302395 || git fetch origin master) && git reset -q --hard 036883c5402b41e0d35f6b200245cc7c3a302395 && git log --no-decorate -n1 --oneline && opam update -u")) (copy (src reagents.opam) (dst ./)) (run (network host) (shell "opam pin add -yn reagents.dev './'")) (run (shell "echo '(lang dune 3.0)' > './dune-project'")) (env DEPS "alcotest.1.9.1 astring.0.8.5 backoff.0.1.1 base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base cmdliner.2.1.1 domain-local-await.1.0.1 domain-local-timeout.1.0.1 domain_shims.0.1.0 dune.3.22.2 fmt.0.11.0 kcas.0.7.0 kcas_data.0.7.0 lockfree.0.3.1 mtime.2.1.0 multicore-magic.2.3.2 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocamlbuild.0.16.1 ocamlfind.1.9.8 psq.0.2.1 re.1.14.0 seq.base stdlib-shims.0.3.0 thread-table.1.0.0 topkg.1.1.1 uutf.1.0.4 yojson.3.0.0") (env CI true) (env OCAMLCI true) (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "opam update --depexts && opam install --cli=2.5 --depext-only -y reagents.dev $DEPS")) (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "opam install $DEPS")) (copy (src .) (dst /src)) (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build")) ) 2026-04-22 14:12.48: Waiting for resource in pool OCluster 2026-04-22 15:59.37: Waiting for worker… 2026-04-22 22:58.13: Got resource from pool OCluster Building on s390x-worker-01.marist.ci.dev All commits already cached HEAD is now at 5a385fd add warning to readme, describe situation with kcas (from ocaml/opam:debian-13-ocaml-5.4@sha256:861c06f54720da3b18d2bf59d8bf9344a8ed199bb58da47182f5d7998ae05400) Unable to find image 'ocaml/opam:debian-13-ocaml-5.4@sha256:861c06f54720da3b18d2bf59d8bf9344a8ed199bb58da47182f5d7998ae05400' locally docker.io/ocaml/opam@sha256:861c06f54720da3b18d2bf59d8bf9344a8ed199bb58da47182f5d7998ae05400: Pulling from ocaml/opam Digest: sha256:861c06f54720da3b18d2bf59d8bf9344a8ed199bb58da47182f5d7998ae05400 Status: Downloaded newer image for ocaml/opam@sha256:861c06f54720da3b18d2bf59d8bf9344a8ed199bb58da47182f5d7998ae05400 2026-04-22 22:58.13 ---> using "1409726e79dc9be9e4654217e55476173a1c5e4979c5ce8b4590b4f02c5bba90" from cache /: (comment debian-13-5.4_s390x_opam-2.5) /: (user (uid 1000) (gid 1000)) /: (env CLICOLOR_FORCE 1) /: (env OPAMCOLOR always) /: (workdir /src) /src: (run (shell "sudo ln -f /usr/bin/opam-2.5 /usr/bin/opam")) 2026-04-22 22:58.13 ---> using "5984c7db0c3205eebbe2b0f9dffc8a14fce2938cbfb2bd7f84def5e90e28ede8" from cache /src: (run (shell "opam init --reinit -ni")) Configuring from /home/opam/.opamrc and then 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 2026-04-22 22:58.13 ---> using "c352ee630ca44c2cbb5a2306c53342d63d89bb3eace87beefde3a620dbe8617a" from cache /src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version")) Linux 6.8.0-107-generic The OCaml toplevel, version 5.4.1 2.5.0 2026-04-22 22:58.13 ---> using "631a37c5bd52ff501299e11acc882062011c2c834e90ee4b8e0b8314ff72feef" from cache /src: (workdir /src) /src: (run (shell "sudo chown opam /src")) 2026-04-22 22:58.13 ---> using "4cf8a4ec6775313ba00e7945991404b95d24be54cf13198975e09a30f94a5632" from cache /src: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "cd ~/opam-repository && (git cat-file -e 036883c5402b41e0d35f6b200245cc7c3a302395 || git fetch origin master) && git reset -q --hard 036883c5402b41e0d35f6b200245cc7c3a302395 && git log --no-decorate -n1 --oneline && opam update -u")) From https://github.com/ocaml/opam-repository * branch master -> FETCH_HEAD 42844088d7..80ba534fc6 master -> origin/master 036883c540 Merge pull request #29788 from dbuenzli/b0-publish-cmdliner.2.1.1 <><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><> [default] synchronised from git+file:///home/opam/opam-repository default (at git+file:///home/opam/opam-repository): [WARNING] opam is out-of-date. Please consider updating it (https://opam.ocaml.org/doc/Install.html) default (at git+file:///home/opam/opam-repository): [INFO] opam 2.5.1 includes security fixes; please consider upgrading (https://opam.ocaml.org/doc/Install.html) Everything as up-to-date as possible However, you may "opam upgrade" these packages explicitly at these versions (e.g. "opam upgrade ocaml.5.5.0"), which will ask permission to downgrade or uninstall the conflicting packages. Nothing to do. # To update the current shell environment, run: eval $(opam env) 2026-04-22 22:58.13 ---> using "4be6a5f0b7decc166259a6ebf6bf335bf9bc277ebb95c516308335b3d521d675" from cache /src: (copy (src reagents.opam) (dst ./)) 2026-04-22 22:58.19 ---> saved as "b4c7f29c4543e22109da7b477445ef0bbee4cf5c4c52780a71776b970806e700" /src: (run (network host) (shell "opam pin add -yn reagents.dev './'")) [NOTE] Package reagents does not exist in opam repositories registered in the current switch. [reagents.dev] synchronised (file:///src) reagents is now pinned to file:///src (version dev) 2026-04-22 22:58.34 ---> saved as "041e826f4b1043eb300b9a11534a89581dbe7b14377d7d967f2343caa19712ad" /src: (run (shell "echo '(lang dune 3.0)' > './dune-project'")) 2026-04-22 22:58.37 ---> saved as "c5229205039e2cfa2692dafa23df51cfa76646cd3a5fb5c137b2c0fb87d74b68" /src: (env DEPS "alcotest.1.9.1 astring.0.8.5 backoff.0.1.1 base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base cmdliner.2.1.1 domain-local-await.1.0.1 domain-local-timeout.1.0.1 domain_shims.0.1.0 dune.3.22.2 fmt.0.11.0 kcas.0.7.0 kcas_data.0.7.0 lockfree.0.3.1 mtime.2.1.0 multicore-magic.2.3.2 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocamlbuild.0.16.1 ocamlfind.1.9.8 psq.0.2.1 re.1.14.0 seq.base stdlib-shims.0.3.0 thread-table.1.0.0 topkg.1.1.1 uutf.1.0.4 yojson.3.0.0") /src: (env CI true) /src: (env OCAMLCI true) /src: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "opam update --depexts && opam install --cli=2.5 --depext-only -y reagents.dev $DEPS")) + /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 s390x Packages [119 kB] - Fetched 210 kB in 1s (414 kB/s) - Reading package lists... - <><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><> [reagents.dev] synchronised (file:///src) [NOTE] Package ocaml-options-vanilla is already installed (current version is 1). [NOTE] Package ocaml-config is already installed (current version is 3). [NOTE] Package ocaml-compiler is already installed (current version is 5.4.1). [NOTE] Package ocaml-base-compiler is already installed (current version is 5.4.1). [NOTE] Package ocaml is already installed (current version is 5.4.1). [NOTE] Package base-unix is already installed (current version is base). [NOTE] Package base-threads is already installed (current version is base). [NOTE] Package base-nnp is already installed (current version is base). [NOTE] Package base-effects is already installed (current version is base). [NOTE] Package base-domains is already installed (current version is base). [NOTE] Package base-bigarray is already installed (current version is base). # To update the current shell environment, run: eval $(opam env) 2026-04-22 22:59.25 ---> saved as "5749d4077671a28917b8c191c6d2e8c85840772d66230fb870b65c973183a007" /src: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "opam install $DEPS")) [NOTE] Package ocaml-options-vanilla is already installed (current version is 1). [NOTE] Package ocaml-config is already installed (current version is 3). [NOTE] Package ocaml-compiler is already installed (current version is 5.4.1). [NOTE] Package ocaml-base-compiler is already installed (current version is 5.4.1). [NOTE] Package ocaml is already installed (current version is 5.4.1). [NOTE] Package base-unix is already installed (current version is base). [NOTE] Package base-threads is already installed (current version is base). [NOTE] Package base-nnp is already installed (current version is base). [NOTE] Package base-effects is already installed (current version is base). [NOTE] Package base-domains is already installed (current version is base). [NOTE] Package base-bigarray is already installed (current version is base). The following actions will be performed: === install 25 packages - install alcotest 1.9.1 - install astring 0.8.5 - install backoff 0.1.1 - install cmdliner 2.1.1 - install domain-local-await 1.0.1 - install domain-local-timeout 1.0.1 - install domain_shims 0.1.0 - install dune 3.22.2 - install fmt 0.11.0 - install kcas 0.7.0 - install kcas_data 0.7.0 - install lockfree 0.3.1 - install mtime 2.1.0 - install multicore-magic 2.3.2 - install ocaml-syntax-shims 1.0.0 - install ocamlbuild 0.16.1 - install ocamlfind 1.9.8 - install psq 0.2.1 - install re 1.14.0 - install seq base - install stdlib-shims 0.3.0 - install thread-table 1.0.0 - install topkg 1.1.1 - install uutf 1.0.4 - install yojson 3.0.0 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><> -> retrieved alcotest.1.9.1 (cached) -> retrieved astring.0.8.5 (cached) -> retrieved backoff.0.1.1 (cached) -> retrieved cmdliner.2.1.1 (cached) -> retrieved domain-local-await.1.0.1 (cached) -> retrieved domain-local-timeout.1.0.1 (cached) -> retrieved domain_shims.0.1.0 (cached) -> retrieved fmt.0.11.0 (cached) -> retrieved kcas.0.7.0, kcas_data.0.7.0 (cached) -> retrieved lockfree.0.3.1 (cached) -> retrieved mtime.2.1.0 (cached) -> retrieved multicore-magic.2.3.2 (cached) -> retrieved ocaml-syntax-shims.1.0.0 (cached) -> retrieved ocamlbuild.0.16.1 (cached) -> retrieved ocamlfind.1.9.8 (cached) -> retrieved dune.3.22.2 (cached) -> retrieved seq.base (cached) -> retrieved psq.0.2.1 (cached) -> retrieved re.1.14.0 (cached) -> retrieved stdlib-shims.0.3.0 (cached) -> retrieved thread-table.1.0.0 (cached) -> retrieved topkg.1.1.1 (cached) -> retrieved uutf.1.0.4 (cached) -> retrieved yojson.3.0.0 (cached) -> installed ocamlfind.1.9.8 -> installed cmdliner.2.1.1 -> installed ocamlbuild.0.16.1 -> installed seq.base -> installed topkg.1.1.1 -> installed fmt.0.11.0 -> installed astring.0.8.5 -> installed mtime.2.1.0 -> installed uutf.1.0.4 -> installed dune.3.22.2 -> installed domain_shims.0.1.0 -> installed backoff.0.1.1 -> installed multicore-magic.2.3.2 -> installed psq.0.2.1 -> installed stdlib-shims.0.3.0 -> installed ocaml-syntax-shims.1.0.0 -> installed thread-table.1.0.0 -> installed domain-local-await.1.0.1 -> installed domain-local-timeout.1.0.1 -> installed yojson.3.0.0 -> installed re.1.14.0 -> installed kcas.0.7.0 -> installed kcas_data.0.7.0 -> installed alcotest.1.9.1 -> installed lockfree.0.3.1 Done. # To update the current shell environment, run: eval $(opam env) 2026-04-22 23:02.00 ---> saved as "115ddaca0f72060ea6380a27d8c10dc0989fb9ea6dc028f0de9aded96deb0c56" /src: (copy (src .) (dst /src)) 2026-04-22 23:02.14 ---> saved as "f49b8a97f0cc59004f2341f2f022eb8eba0db65c41d548ea9fffcf96b202573e" /src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build")) (cd _build/default && /home/opam/.opam/5.4/bin/ocamlc.opt -w @1..3@5..28@30..39@43@46..47@49..57@61..62-40 -strict-sequence -strict-formats -short-paths -keep-locs -g -bin-annot -bin-annot-occurrences -I lib/.reagents.objs/byte -I /home/opam/.opam/5.4/lib/backoff -I /home/opam/.opam/5.4/lib/domain-local-await -I /home/opam/.opam/5.4/lib/domain-local-timeout -I /home/opam/.opam/5.4/lib/domain_shims -I /home/opam/.opam/5.4/lib/kcas -I /home/opam/.opam/5.4/lib/lockfree -I /home/opam/.opam/5.4/lib/mtime -I /home/opam/.opam/5.4/lib/mtime/clock -I /home/opam/.opam/5.4/lib/multicore-magic -H /home/opam/.opam/5.4/lib/multicore-magic/__private__/multicore_magic_atomic_array_unboxed5_4 -H /home/opam/.opam/5.4/lib/multicore-magic/__private__/multicore_magic_atomic_array_unboxed5_4/.public_cmi -I /home/opam/.opam/5.4/lib/ocaml/threads -I /home/opam/.opam/5.4/lib/ocaml/unix -I /home/opam/.opam/5.4/lib/psq -I /home/opam/.opam/5.4/lib/seq -I /home/opam/.opam/5.4/lib/thread-table -cmi-file lib/.reagents.objs/byte/reagents__PostCommitCas.cmi -no-alias-deps -opaque -open Reagents__ -o lib/.reagents.objs/byte/reagents__PostCommitCas.cmo -c -impl lib/postCommitCas.ml) File "lib/postCommitCas.ml", line 18, characters 12-19: 18 | module Op = Kcas.Op ^^^^^^^ Error: Unbound module Kcas.Op (cd _build/default && /home/opam/.opam/5.4/bin/ocamlopt.opt -w @1..3@5..28@30..39@43@46..47@49..57@61..62-40 -strict-sequence -strict-formats -short-paths -keep-locs -g -I lib/.reagents.objs/byte -I lib/.reagents.objs/native -I /home/opam/.opam/5.4/lib/backoff -I /home/opam/.opam/5.4/lib/domain-local-await -I /home/opam/.opam/5.4/lib/domain-local-timeout -I /home/opam/.opam/5.4/lib/domain_shims -I /home/opam/.opam/5.4/lib/kcas -I /home/opam/.opam/5.4/lib/lockfree -I /home/opam/.opam/5.4/lib/mtime -I /home/opam/.opam/5.4/lib/mtime/clock -I /home/opam/.opam/5.4/lib/multicore-magic -I /home/opam/.opam/5.4/lib/multicore-magic/__private__/multicore_magic_atomic_array_unboxed5_4 -H /home/opam/.opam/5.4/lib/multicore-magic/__private__/multicore_magic_atomic_array_unboxed5_4/.public_cmi -I /home/opam/.opam/5.4/lib/ocaml/threads -I /home/opam/.opam/5.4/lib/ocaml/unix -I /home/opam/.opam/5.4/lib/psq -I /home/opam/.opam/5.4/lib/seq -I /home/opam/.opam/5.4/lib/thread-table -cmi-file lib/.reagents.objs/byte/reagents__PostCommitCas.cmi -no-alias-deps -opaque -open Reagents__ -o lib/.reagents.objs/native/reagents__PostCommitCas.cmx -c -impl lib/postCommitCas.ml) File "lib/postCommitCas.ml", line 18, characters 12-19: 18 | module Op = Kcas.Op ^^^^^^^ Error: Unbound module Kcas.Op (cd _build/default && /home/opam/.opam/5.4/bin/ocamlopt.opt -w @1..3@5..28@30..39@43@46..47@49..57@61..62-40 -strict-sequence -strict-formats -short-paths -keep-locs -g -I lib/.reagents.objs/byte -I lib/.reagents.objs/native -I /home/opam/.opam/5.4/lib/backoff -I /home/opam/.opam/5.4/lib/domain-local-await -I /home/opam/.opam/5.4/lib/domain-local-timeout -I /home/opam/.opam/5.4/lib/domain_shims -I /home/opam/.opam/5.4/lib/kcas -I /home/opam/.opam/5.4/lib/lockfree -I /home/opam/.opam/5.4/lib/mtime -I /home/opam/.opam/5.4/lib/mtime/clock -I /home/opam/.opam/5.4/lib/multicore-magic -I /home/opam/.opam/5.4/lib/multicore-magic/__private__/multicore_magic_atomic_array_unboxed5_4 -H /home/opam/.opam/5.4/lib/multicore-magic/__private__/multicore_magic_atomic_array_unboxed5_4/.public_cmi -I /home/opam/.opam/5.4/lib/ocaml/threads -I /home/opam/.opam/5.4/lib/ocaml/unix -I /home/opam/.opam/5.4/lib/psq -I /home/opam/.opam/5.4/lib/seq -I /home/opam/.opam/5.4/lib/thread-table -cmi-file lib/.reagents.objs/byte/reagents__Ref.cmi -no-alias-deps -opaque -open Reagents__ -o lib/.reagents.objs/native/reagents__Ref.cmx -c -impl lib/ref.ml) File "lib/ref.ml", line 23, characters 14-21: 23 | module Op = Kcas.Op ^^^^^^^ Error: Unbound module Kcas.Op (cd _build/default && /home/opam/.opam/5.4/bin/ocamlc.opt -w @1..3@5..28@30..39@43@46..47@49..57@61..62-40 -strict-sequence -strict-formats -short-paths -keep-locs -g -bin-annot -bin-annot-occurrences -I lib/.reagents.objs/byte -I /home/opam/.opam/5.4/lib/backoff -I /home/opam/.opam/5.4/lib/domain-local-await -I /home/opam/.opam/5.4/lib/domain-local-timeout -I /home/opam/.opam/5.4/lib/domain_shims -I /home/opam/.opam/5.4/lib/kcas -I /home/opam/.opam/5.4/lib/lockfree -I /home/opam/.opam/5.4/lib/mtime -I /home/opam/.opam/5.4/lib/mtime/clock -I /home/opam/.opam/5.4/lib/multicore-magic -H /home/opam/.opam/5.4/lib/multicore-magic/__private__/multicore_magic_atomic_array_unboxed5_4 -H /home/opam/.opam/5.4/lib/multicore-magic/__private__/multicore_magic_atomic_array_unboxed5_4/.public_cmi -I /home/opam/.opam/5.4/lib/ocaml/threads -I /home/opam/.opam/5.4/lib/ocaml/unix -I /home/opam/.opam/5.4/lib/psq -I /home/opam/.opam/5.4/lib/seq -I /home/opam/.opam/5.4/lib/thread-table -cmi-file lib/.reagents.objs/byte/reagents__Ref.cmi -no-alias-deps -opaque -open Reagents__ -o lib/.reagents.objs/byte/reagents__Ref.cmo -c -impl lib/ref.ml) File "lib/ref.ml", line 23, characters 14-21: 23 | module Op = Kcas.Op ^^^^^^^ Error: Unbound module Kcas.Op "/usr/bin/env" "bash" "-c" "opam exec -- dune build @install @check @runtest && rm -rf _build" failed with exit status 1 2026-04-22 23:02.21: Job failed: Failed: Build failed