2026-05-22 11:28.22: New job: test ocaml-ppx/ppxlib https://github.com/ocaml-ppx/ppxlib.git#refs/heads/main (51a717b12ea3f4661c483c1889164eaf96e0e998) (linux-x86_64:debian-13-5.4+flambda_opam-2.5) Base: ocaml/opam:debian-13-ocaml-5.4-flambda@sha256:be09c6e2c840b597ddbcaa8cb9a37ecd7846657c076cb69454e0b94203c04665 Opam project build To reproduce locally: git clone --recursive "https://github.com/ocaml-ppx/ppxlib.git" -b "main" && cd "ppxlib" && git reset --hard 51a717b1 cat > Dockerfile <<'END-OF-DOCKERFILE' FROM ocaml/opam:debian-13-ocaml-5.4-flambda@sha256:be09c6e2c840b597ddbcaa8cb9a37ecd7846657c076cb69454e0b94203c04665 # debian-13-5.4+flambda_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 cd ~/opam-repository && (git cat-file -e c180e1630960e0dbb8e30c22b3de89113eb5cc93 || git fetch origin master) && git reset -q --hard c180e1630960e0dbb8e30c22b3de89113eb5cc93 && git log --no-decorate -n1 --oneline RUN opam init --reinit -ni RUN uname -rs && opam exec -- ocaml -version && opam --version WORKDIR /src RUN sudo chown opam /src RUN opam update -u COPY --chown=1000:1000 ppxlib.opam ppxlib-tools.opam ppxlib-bench.opam ./ RUN opam pin add -yn ppxlib.dev './' && \ opam pin add -yn ppxlib-tools.dev './' && \ opam pin add -yn ppxlib-bench.dev './' RUN echo '(lang dune 3.0)' > './dune-project' ENV DEPS="base.v0.17.3 base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base cinaps.v0.15.1 cmdliner.2.1.1 csexp.1.5.2 dune.3.23.1 dune-configurator.3.23.1 ocaml.5.4.1 ocaml-compiler.5.4.1 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-variants.5.4.1+options ocaml_intrinsics_kernel.v0.17.2 ocamlfind.1.9.8 ppx_derivers.1.2.1 re.1.14.0 sexplib0.v0.17.0 yojson.3.0.0" ENV CI="true" ENV OCAMLCI="true" RUN opam update --depexts && opam install --cli=2.5 --depext-only -y ppxlib.dev ppxlib-tools.dev ppxlib-bench.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 2026-05-22 11:28.22: Using cache hint "ocaml-ppx/ppxlib-ocaml/opam:debian-13-ocaml-5.4-flambda@sha256:be09c6e2c840b597ddbcaa8cb9a37ecd7846657c076cb69454e0b94203c04665-debian-13-5.4+flambda_opam-2.5-a4cf4d5b4d9dc2a0cd947cc925f9c916" 2026-05-22 11:28.22: Using OBuilder spec: ((from ocaml/opam:debian-13-ocaml-5.4-flambda@sha256:be09c6e2c840b597ddbcaa8cb9a37ecd7846657c076cb69454e0b94203c04665) (comment debian-13-5.4+flambda_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 (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "cd ~/opam-repository && (git cat-file -e c180e1630960e0dbb8e30c22b3de89113eb5cc93 || git fetch origin master) && git reset -q --hard c180e1630960e0dbb8e30c22b3de89113eb5cc93 && git log --no-decorate -n1 --oneline")) (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 "opam update -u")) (copy (src ppxlib.opam ppxlib-tools.opam ppxlib-bench.opam) (dst ./)) (run (network host) (shell "opam pin add -yn ppxlib.dev './' && \ \nopam pin add -yn ppxlib-tools.dev './' && \ \nopam pin add -yn ppxlib-bench.dev './'")) (run (shell "echo '(lang dune 3.0)' > './dune-project'")) (env DEPS "base.v0.17.3 base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base cinaps.v0.15.1 cmdliner.2.1.1 csexp.1.5.2 dune.3.23.1 dune-configurator.3.23.1 ocaml.5.4.1 ocaml-compiler.5.4.1 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-variants.5.4.1+options ocaml_intrinsics_kernel.v0.17.2 ocamlfind.1.9.8 ppx_derivers.1.2.1 re.1.14.0 sexplib0.v0.17.0 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 ppxlib.dev ppxlib-tools.dev ppxlib-bench.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")) ) 2026-05-22 11:28.22: Waiting for resource in pool OCluster 2026-05-22 11:28.22: Waiting for worker… 2026-05-22 11:28.50: Got resource from pool OCluster Building on eumache.caelum.ci.dev All commits already cached HEAD is now at 51a717b1 Merge pull request #643 from janestreet/jrickard/fix-pexp-apply (from ocaml/opam:debian-13-ocaml-5.4-flambda@sha256:be09c6e2c840b597ddbcaa8cb9a37ecd7846657c076cb69454e0b94203c04665) Unable to find image 'ocaml/opam:debian-13-ocaml-5.4-flambda@sha256:be09c6e2c840b597ddbcaa8cb9a37ecd7846657c076cb69454e0b94203c04665' locally docker.io/ocaml/opam@sha256:be09c6e2c840b597ddbcaa8cb9a37ecd7846657c076cb69454e0b94203c04665: Pulling from ocaml/opam 307f8152a55e: Already exists 53d481666795: Already exists 4ee22a5df705: Already exists ae88ba2e7c99: Already exists 466fcae906a3: Already exists 024abae8c1ed: Already exists d582ebdec32b: Already exists aa12715098f1: Already exists 62299cb9f759: Already exists a25072680c61: Already exists 43b56dd9ccf7: Already exists 244d3fc9f983: Already exists c4fb47424a8f: Already exists cf6798d648a4: Already exists 279a991ac05e: Already exists cf66fc12d100: Already exists cf66fc12d100: Already exists d39d0e8ae83c: Already exists 4b54e9cd8568: Already exists f65d25bce8ea: Already exists 7d77baca5957: Already exists 4f4fb700ef54: Already exists a99a940ecfac: Already exists f5264679c08b: Already exists f2b70106109c: Already exists b37088730bad: Already exists cbd33ffade5f: Already exists f1cf9ab18ca0: Already exists 87f3d72372a4: Already exists 25d15f09ece2: Already exists 6304df60357e: Already exists 34a8ea3e9b48: Already exists a0636f21098e: Already exists 9511add15c87: Already exists 963ec00065e9: Already exists 3a098b8178a5: Already exists ca1c1d43252a: Already exists ca50eb78767c: Already exists 85fc1e77225e: Already exists 088f7de253ad: Already exists 034bdf46d916: Pulling fs layer 6e3fdc53a7b8: Pulling fs layer 661daaf3c703: Pulling fs layer 406ee8756938: Pulling fs layer 5828dc96a7ea: Pulling fs layer f7987e4afa2c: Pulling fs layer b2b72cdd4c5f: Pulling fs layer 406ee8756938: Waiting 5828dc96a7ea: Waiting b2b72cdd4c5f: Waiting f7987e4afa2c: Waiting 034bdf46d916: Verifying Checksum 034bdf46d916: Pull complete 6e3fdc53a7b8: Pull complete 661daaf3c703: Verifying Checksum 661daaf3c703: Download complete 5828dc96a7ea: Verifying Checksum 5828dc96a7ea: Download complete 661daaf3c703: Pull complete f7987e4afa2c: Download complete b2b72cdd4c5f: Download complete 406ee8756938: Verifying Checksum 406ee8756938: Download complete 406ee8756938: Pull complete 5828dc96a7ea: Pull complete f7987e4afa2c: Pull complete b2b72cdd4c5f: Pull complete Digest: sha256:be09c6e2c840b597ddbcaa8cb9a37ecd7846657c076cb69454e0b94203c04665 Status: Downloaded newer image for ocaml/opam@sha256:be09c6e2c840b597ddbcaa8cb9a37ecd7846657c076cb69454e0b94203c04665 2026-05-22 11:28.58 ---> using "44c3a341b0ed3abfe48baeebe63ca0d055f3082272deeafe1331c042eada0bf0" from cache /: (comment debian-13-5.4+flambda_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")) 2026-05-22 11:28.58 ---> using "53c3f02df00f4c17d7b3a83a235a06c4213d7212acd8284bc4791a635ff0e5fb" from cache /src: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "cd ~/opam-repository && (git cat-file -e c180e1630960e0dbb8e30c22b3de89113eb5cc93 || git fetch origin master) && git reset -q --hard c180e1630960e0dbb8e30c22b3de89113eb5cc93 && git log --no-decorate -n1 --oneline")) From https://github.com/ocaml/opam-repository * branch master -> FETCH_HEAD fc08333d1b..3e30e43808 master -> origin/master c180e16309 Merge pull request #29907 from dra27/host-arch-fixes 2026-05-22 11:28.58 ---> using "2ce678435cc5f597e8f1c25ef6b49fc2c3feba67b4808db160178cf4492d2f61" 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 2.1 to version 2.2, which can't be reverted. You may want to back it up before going further. Continue? [Y/n] y [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 Format upgrade done. <><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><> [default] synchronised from git+file:///home/opam/opam-repository 2026-05-22 11:28.58 ---> using "c222e962f9c239d5be8afef309d1567d4e0b84329d41a0c2f244211bb5918043" from cache /src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version")) Linux 6.8.0-111-generic The OCaml toplevel, version 5.4.1 2.5.1 2026-05-22 11:28.58 ---> using "a00bbe5d186a4984542796e1ba14f3a2f99b388185b70b47b79ba5da7434ac15" from cache /src: (workdir /src) /src: (run (shell "sudo chown opam /src")) 2026-05-22 11:28.58 ---> using "351657fcaa5c675c72d6435b66d38d839cfe724d3a10b9b890bbfef8e27fbd1a" from cache /src: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "opam update -u")) <><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><> [default] no changes from git+file:///home/opam/opam-repository Everything as up-to-date as possible The following packages are not being upgraded because the new versions conflict with other installed packages: - ocaml.5.5.0 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) 2026-05-22 11:28.58 ---> using "bb8fbe7821202297ed3ee6b077947dfd050981fdf9ff26f5bd702a7d5974fe68" from cache /src: (copy (src ppxlib.opam ppxlib-tools.opam ppxlib-bench.opam) (dst ./)) 2026-05-22 11:28.58 ---> saved as "5136311b98713f417f607f9a8e207869688d1bdb981feda485fb5312779b5fef" /src: (run (network host) (shell "opam pin add -yn ppxlib.dev './' && \ \nopam pin add -yn ppxlib-tools.dev './' && \ \nopam pin add -yn ppxlib-bench.dev './'")) [ppxlib.dev] synchronised (file:///src) ppxlib is now pinned to file:///src (version dev) [ppxlib-tools.dev] synchronised (file:///src) ppxlib-tools is now pinned to file:///src (version dev) [NOTE] Package ppxlib-bench does not exist in opam repositories registered in the current switch. [ppxlib-bench.dev] synchronised (file:///src) ppxlib-bench is now pinned to file:///src (version dev) 2026-05-22 11:29.07 ---> saved as "643c572b4dacd2ea812e5bf9177028e67129db22c402cbb1b12d64aeab17b03f" /src: (run (shell "echo '(lang dune 3.0)' > './dune-project'")) 2026-05-22 11:29.07 ---> saved as "4be42b351117272700a2c8b200d74ba6a74965914b1473b8bc95092a640f7ea6" /src: (env DEPS "base.v0.17.3 base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base cinaps.v0.15.1 cmdliner.2.1.1 csexp.1.5.2 dune.3.23.1 dune-configurator.3.23.1 ocaml.5.4.1 ocaml-compiler.5.4.1 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-variants.5.4.1+options ocaml_intrinsics_kernel.v0.17.2 ocamlfind.1.9.8 ppx_derivers.1.2.1 re.1.14.0 sexplib0.v0.17.0 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 ppxlib.dev ppxlib-tools.dev ppxlib-bench.dev $DEPS")) + /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 [9671 kB] - Get:5 http://deb.debian.org/debian-security trixie-security/main amd64 Packages [166 kB] - Fetched 10.1 MB in 2s (4284 kB/s) - Reading package lists... - <><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><> [ppxlib.dev] synchronised (file:///src) [ppxlib-bench.dev] synchronised (file:///src) [ppxlib-tools.dev] synchronised (file:///src) [NOTE] Package ocaml-variants is already installed (current version is 5.4.1+options). [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 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) 2026-05-22 11:29.28 ---> saved as "29c4eeb627d61e64f5c79924cefe3c7b855acde5cc1524b2351b5fd42690d9e7" /src: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "opam install $DEPS")) [NOTE] Package ocaml-variants is already installed (current version is 5.4.1+options). [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 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 13 packages - install base v0.17.3 - install cinaps v0.15.1 - install cmdliner 2.1.1 - install csexp 1.5.2 - install dune 3.23.1 - install dune-configurator 3.23.1 - install ocaml-compiler-libs v0.17.0 - install ocaml_intrinsics_kernel v0.17.2 - install ocamlfind 1.9.8 - install ppx_derivers 1.2.1 - install re 1.14.0 - install sexplib0 v0.17.0 - install yojson 3.0.0 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><> -> retrieved base.v0.17.3 (cached) -> retrieved cinaps.v0.15.1 (cached) -> retrieved cmdliner.2.1.1 (cached) -> retrieved csexp.1.5.2 (cached) -> retrieved ocaml-compiler-libs.v0.17.0 (cached) -> retrieved ocaml_intrinsics_kernel.v0.17.2 (cached) -> retrieved ppx_derivers.1.2.1 (cached) -> retrieved ocamlfind.1.9.8 (cached) -> retrieved re.1.14.0 (cached) -> retrieved sexplib0.v0.17.0 (cached) -> retrieved yojson.3.0.0 (cached) -> retrieved dune.3.23.1, dune-configurator.3.23.1 (cached) -> installed cmdliner.2.1.1 -> installed ocamlfind.1.9.8 -> installed dune.3.23.1 -> installed ppx_derivers.1.2.1 -> installed ocaml_intrinsics_kernel.v0.17.2 -> installed csexp.1.5.2 -> installed sexplib0.v0.17.0 -> installed re.1.14.0 -> installed ocaml-compiler-libs.v0.17.0 -> installed yojson.3.0.0 -> installed cinaps.v0.15.1 -> installed dune-configurator.3.23.1 -> installed base.v0.17.3 Done. # To update the current shell environment, run: eval $(opam env) 2026-05-22 11:31.52 ---> saved as "d3ba3109270b0c11df887227247a60d24b06d632d16d5924923bb6929f91afad" /src: (copy (src .) (dst /src)) 2026-05-22 11:31.54 ---> saved as "c649c7ee2236b6ffef935f3eee94cb6c742ce672db1be2c75c4bd2bb2d9f5686" /src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build")) File "dune-project", line 21, characters 2-42: 21 | (sexplib0 (and :with-test (>= "v0.15"))) ; Printexc.register_printer in sexplib0 changed ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Warning: Duplicate dependency on package (sexplib0 (and :with-test (>= v0.15))) in 'depends' field. If you want to specify multiple constraints, combine them using (and ...). Hint: To disable this warning, add the following to your dune-project file: (warnings (duplicate_deps disabled)) (cd _build/default && /home/opam/.opam/5.4/bin/ocamlopt.opt -w -24 -I test/expect/.cinaps.a11867db/.cinaps.eobjs/byte -I test/expect/.cinaps.a11867db/.cinaps.eobjs/native -I /home/opam/.opam/5.4/lib/cinaps/runtime -I src/cinaps/.ppxlib_cinaps_helpers.objs/byte -I src/cinaps/.ppxlib_cinaps_helpers.objs/native -cmi-file test/expect/.cinaps.a11867db/.cinaps.eobjs/byte/dune__exe__Cinaps.cmi -no-alias-deps -o test/expect/.cinaps.a11867db/.cinaps.eobjs/native/dune__exe__Cinaps.cmx -c -impl test/expect/.cinaps.a11867db/cinaps.ml-gen) File "_none_", line 1: Alert ocaml_deprecated_auto_include: OCaml's lib directory layout changed in 5.0. The unix subdirectory has been automatically added to the search path, but you should add -I +unix to the command-line to silence this alert (e.g. by adding unix to the list of libraries in your dune file, or adding use_unix to your _tags file for ocamlbuild, or using -package unix for ocamlfind). (cd _build/default && /home/opam/.opam/5.4/bin/ocamlopt.opt -w -24 -I ast/.cinaps.d5d13568/.cinaps.eobjs/byte -I ast/.cinaps.d5d13568/.cinaps.eobjs/native -I /home/opam/.opam/5.4/lib/cinaps/runtime -I ast/cinaps/.ast_cinaps_helpers.objs/byte -I ast/cinaps/.ast_cinaps_helpers.objs/native -cmi-file ast/.cinaps.d5d13568/.cinaps.eobjs/byte/dune__exe__Cinaps.cmi -no-alias-deps -o ast/.cinaps.d5d13568/.cinaps.eobjs/native/dune__exe__Cinaps.cmx -c -impl ast/.cinaps.d5d13568/cinaps.ml-gen) File "_none_", line 1: Alert ocaml_deprecated_auto_include: OCaml's lib directory layout changed in 5.0. The unix subdirectory has been automatically added to the search path, but you should add -I +unix to the command-line to silence this alert (e.g. by adding unix to the list of libraries in your dune file, or adding use_unix to your _tags file for ocamlbuild, or using -package unix for ocamlfind). (cd _build/default && /home/opam/.opam/5.4/bin/ocamlopt.opt -w -24 -I src/.cinaps.7c83e97a/.cinaps.eobjs/byte -I src/.cinaps.7c83e97a/.cinaps.eobjs/native -I /home/opam/.opam/5.4/lib/cinaps/runtime -I src/cinaps/.ppxlib_cinaps_helpers.objs/byte -I src/cinaps/.ppxlib_cinaps_helpers.objs/native -cmi-file src/.cinaps.7c83e97a/.cinaps.eobjs/byte/dune__exe__Cinaps.cmi -no-alias-deps -o src/.cinaps.7c83e97a/.cinaps.eobjs/native/dune__exe__Cinaps.cmx -c -impl src/.cinaps.7c83e97a/cinaps.ml-gen) File "_none_", line 1: Alert ocaml_deprecated_auto_include: OCaml's lib directory layout changed in 5.0. The unix subdirectory has been automatically added to the search path, but you should add -I +unix to the command-line to silence this alert (e.g. by adding unix to the list of libraries in your dune file, or adding use_unix to your _tags file for ocamlbuild, or using -package unix for ocamlfind). (cd _build/default && /home/opam/.opam/5.4/bin/ocamlopt.opt -w -24 -I astlib/.cinaps.440255ab/.cinaps.eobjs/byte -I astlib/.cinaps.440255ab/.cinaps.eobjs/native -I /home/opam/.opam/5.4/lib/cinaps/runtime -I astlib/cinaps/.astlib_cinaps_helpers.objs/byte -I astlib/cinaps/.astlib_cinaps_helpers.objs/native -cmi-file astlib/.cinaps.440255ab/.cinaps.eobjs/byte/dune__exe__Cinaps.cmi -no-alias-deps -o astlib/.cinaps.440255ab/.cinaps.eobjs/native/dune__exe__Cinaps.cmx -c -impl astlib/.cinaps.440255ab/cinaps.ml-gen) File "_none_", line 1: Alert ocaml_deprecated_auto_include: OCaml's lib directory layout changed in 5.0. The unix subdirectory has been automatically added to the search path, but you should add -I +unix to the command-line to silence this alert (e.g. by adding unix to the list of libraries in your dune file, or adding use_unix to your _tags file for ocamlbuild, or using -package unix for ocamlfind). 2026-05-22 11:33.09 ---> saved as "0ffe5baf5be43c82753b0f5768d4536844bfd43be1c60e87e530ba6693566fc1" Job succeeded 2026-05-22 11:33.09: Job succeeded