2026-04-16 16:37.58: New job: test jmid/mutaml https://github.com/jmid/mutaml.git#refs/heads/main (783831dcb58310a4cd7a6c03dc12c45cd8b74f36) (linux-x86_64:ubuntu-22.04-5.4_opam-2.5) Base: ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:820d5bdb3799f5da6694d98eaf83c30643622415a2382ee9f2be3676799737f7 Opam project build To reproduce locally: git clone --recursive "https://github.com/jmid/mutaml.git" -b "main" && cd "mutaml" && git reset --hard 783831dc cat > Dockerfile <<'END-OF-DOCKERFILE' FROM ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:820d5bdb3799f5da6694d98eaf83c30643622415a2382ee9f2be3676799737f7 # ubuntu-22.04-5.4_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 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 || git fetch origin master) && git reset -q --hard 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 && git log --no-decorate -n1 --oneline && opam update -u COPY --chown=1000:1000 mutaml.opam ./ RUN opam pin add -yn mutaml.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 conf-diffutils.2 conf-timeout.1 cppo.1.8.0 csexp.1.5.2 dune.3.22.2 dune-configurator.3.22.2 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml_intrinsics_kernel.v0.17.1 ocamlfind.1.9.8 octavius.1.2.2 ounit2.2.2.7 ppx_derivers.1.2.1 ppx_deriving.6.1.1 ppx_js_style.v0.17.1 ppx_yojson_conv.v0.17.1 ppx_yojson_conv_lib.v0.17.0 ppxlib.0.38.0 seq.base sexplib0.v0.17.0 stdlib-random.1.2.0 stdlib-shims.0.3.0 yojson.3.0.0" ENV CI="true" ENV OCAMLCI="true" RUN opam update --depexts && opam install --cli=2.5 --depext-only -y mutaml.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 2026-04-16 16:37.58: Using cache hint "jmid/mutaml-ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:820d5bdb3799f5da6694d98eaf83c30643622415a2382ee9f2be3676799737f7-ubuntu-22.04-5.4_opam-2.5-b89b763db5a073438c5cd4df74d63046" 2026-04-16 16:37.58: Using OBuilder spec: ((from ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:820d5bdb3799f5da6694d98eaf83c30643622415a2382ee9f2be3676799737f7) (comment ubuntu-22.04-5.4_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 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 || git fetch origin master) && git reset -q --hard 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 && git log --no-decorate -n1 --oneline && opam update -u")) (copy (src mutaml.opam) (dst ./)) (run (network host) (shell "opam pin add -yn mutaml.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 conf-diffutils.2 conf-timeout.1 cppo.1.8.0 csexp.1.5.2 dune.3.22.2 dune-configurator.3.22.2 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml_intrinsics_kernel.v0.17.1 ocamlfind.1.9.8 octavius.1.2.2 ounit2.2.2.7 ppx_derivers.1.2.1 ppx_deriving.6.1.1 ppx_js_style.v0.17.1 ppx_yojson_conv.v0.17.1 ppx_yojson_conv_lib.v0.17.0 ppxlib.0.38.0 seq.base sexplib0.v0.17.0 stdlib-random.1.2.0 stdlib-shims.0.3.0 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 mutaml.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")) ) 2026-04-16 16:37.58: Waiting for resource in pool OCluster 2026-04-16 18:01.01: Waiting for worker… 2026-04-16 18:10.58: Got resource from pool OCluster Building on asteria.caelum.ci.dev All commits already cached HEAD is now at 783831d Merge pull request #44 from jmid/dependabot/github_actions/actions/checkout-5 (from ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:820d5bdb3799f5da6694d98eaf83c30643622415a2382ee9f2be3676799737f7) Unable to find image 'ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:820d5bdb3799f5da6694d98eaf83c30643622415a2382ee9f2be3676799737f7' locally docker.io/ocaml/opam@sha256:820d5bdb3799f5da6694d98eaf83c30643622415a2382ee9f2be3676799737f7: Pulling from ocaml/opam de47083ed7d7: Already exists ae7ac0da60c3: Already exists 57ff9bc83013: Already exists a288301b5d01: Already exists f352b66a76e4: Already exists f509f3aae84b: Already exists 1674fa14ab09: Already exists 2698574bb308: Already exists f6298ee465ed: Already exists c0144cfcd9e7: Already exists 1222e5b97bf7: Already exists 7894caceea27: Already exists bebaf8dbf49e: Already exists 272347abc412: Already exists 75f374e606d8: Already exists 712806a06ccc: Already exists d464987372fd: Already exists d464987372fd: Already exists 4f4fb700ef54: Already exists b9f4b7812175: Already exists 45615c57dc28: Already exists d939b9fd721c: Already exists 4f4fb700ef54: Already exists d349c59e05ec: Already exists 5d929fb3122d: Already exists ced6e49d89aa: Already exists 98f37ff91287: Already exists b0cdb242d0af: Already exists 89adf72eb9a4: Already exists 181427a5010e: Already exists 0ecf8e12c8cc: Already exists 9655b24677e6: Already exists 8e0b925edd61: Already exists 2213c8f60be2: Already exists 99c5f3c2e946: Already exists 85a338c15b57: Already exists 0a1aa60a6b47: Already exists a073965d9bcb: Already exists 54a820b98e2c: Already exists 61fa9bc5bce5: Already exists 8aca8b1ce062: Already exists 46a9515cde75: Pulling fs layer 262d9bd8c855: Pulling fs layer ae5331734743: Pulling fs layer 08bd63570bca: Pulling fs layer 78eb3fe40c1b: Pulling fs layer 3a79a58b2092: Pulling fs layer ac7e8a5a96a7: Pulling fs layer 78eb3fe40c1b: Waiting 3a79a58b2092: Waiting ac7e8a5a96a7: Waiting 08bd63570bca: Waiting 46a9515cde75: Verifying Checksum 46a9515cde75: Download complete 262d9bd8c855: Download complete 46a9515cde75: Pull complete 262d9bd8c855: Pull complete ae5331734743: Verifying Checksum ae5331734743: Download complete ae5331734743: Pull complete 78eb3fe40c1b: Verifying Checksum 78eb3fe40c1b: Download complete 3a79a58b2092: Download complete ac7e8a5a96a7: Verifying Checksum ac7e8a5a96a7: Download complete 08bd63570bca: Verifying Checksum 08bd63570bca: Download complete 08bd63570bca: Pull complete 78eb3fe40c1b: Pull complete 3a79a58b2092: Pull complete ac7e8a5a96a7: Pull complete Digest: sha256:820d5bdb3799f5da6694d98eaf83c30643622415a2382ee9f2be3676799737f7 Status: Downloaded newer image for ocaml/opam@sha256:820d5bdb3799f5da6694d98eaf83c30643622415a2382ee9f2be3676799737f7 2026-04-16 18:15.04 ---> using "d2564225bf1b0f86f879d98077c5aee1af360c988d8f5d2b60b97ba1f9e07761" from cache /: (comment ubuntu-22.04-5.4_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")) 2026-04-16 18:15.04 ---> using "6173b475db7783a1c34961d8c0aaafb3b382c024f78aacc75dadbdbb936b85d4" 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 [NOTE] The 'jobs' option was reset, its value was 71 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=71 --global Format upgrade done. <><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><> [default] Initialised 2026-04-16 18:15.09 ---> using "66cb56b7a1bde2643b508320ad816b5e889a6c383d870e6c22e4b9a554e7404f" 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 2026-04-16 18:15.10 ---> using "e7e8c309fc8dc0f965860a37d87001b835a5e47de72f1345f21f0d262101c352" from cache /src: (workdir /src) /src: (run (shell "sudo chown opam /src")) 2026-04-16 18:15.17 ---> using "6db34e0f0c6b7c2450cd6b22daeecef2536e20c11596e7f80d694dbb4746bbe7" from cache /src: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "cd ~/opam-repository && (git cat-file -e 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 || git fetch origin master) && git reset -q --hard 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 && git log --no-decorate -n1 --oneline && opam update -u")) From https://github.com/ocaml/opam-repository * branch master -> FETCH_HEAD 42844088d7..0b0acbee05 master -> origin/master 5f7bb1a6e6 Merge pull request #29704 from shonfeder/release-dune-3.22.2 <><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><> [default] synchronised from git+file:///home/opam/opam-repository 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) 2026-04-16 18:15.20 ---> using "c8827eb5def96c533cb6189e039e957f8d1cb3a9f1100949c42085617f3219b5" from cache /src: (copy (src mutaml.opam) (dst ./)) 2026-04-16 18:15.43 ---> saved as "22cc6c64e1ea9c35525f6906ef98b1bccd2c02b4b2dfa8c21a48a55e19d877bc" /src: (run (network host) (shell "opam pin add -yn mutaml.dev './'")) [mutaml.dev] synchronised (file:///src) mutaml is now pinned to file:///src (version dev) 2026-04-16 18:16.10 ---> saved as "69b5bb5d5e05d859a88e6f40e64eede93111298c7643ef600e7079021974dd60" /src: (run (shell "echo '(lang dune 3.0)' > './dune-project'")) 2026-04-16 18:16.29 ---> saved as "9e94dde75f40e5c8cd05eab0127eefb0370e2cb63c0de8f261389029e7722b2d" /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 conf-diffutils.2 conf-timeout.1 cppo.1.8.0 csexp.1.5.2 dune.3.22.2 dune-configurator.3.22.2 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml_intrinsics_kernel.v0.17.1 ocamlfind.1.9.8 octavius.1.2.2 ounit2.2.2.7 ppx_derivers.1.2.1 ppx_deriving.6.1.1 ppx_js_style.v0.17.1 ppx_yojson_conv.v0.17.1 ppx_yojson_conv_lib.v0.17.0 ppxlib.0.38.0 seq.base sexplib0.v0.17.0 stdlib-random.1.2.0 stdlib-shims.0.3.0 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 mutaml.dev $DEPS")) + /usr/bin/sudo "apt-get" "update" - Get:1 http://security.ubuntu.com/ubuntu jammy-security InRelease [129 kB] - Hit:2 http://archive.ubuntu.com/ubuntu jammy InRelease - Get:3 http://security.ubuntu.com/ubuntu jammy-security/restricted amd64 Packages [7015 kB] - Get:4 http://security.ubuntu.com/ubuntu jammy-security/universe amd64 Packages [1311 kB] - Get:5 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages [3929 kB] - Get:6 http://archive.ubuntu.com/ubuntu jammy-updates InRelease [128 kB] - Get:7 http://archive.ubuntu.com/ubuntu jammy-backports InRelease [127 kB] - Get:8 http://archive.ubuntu.com/ubuntu jammy-updates/restricted amd64 Packages [7232 kB] - Get:9 http://archive.ubuntu.com/ubuntu jammy-updates/universe amd64 Packages [1623 kB] - Get:10 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages [4264 kB] - Get:11 http://archive.ubuntu.com/ubuntu jammy-backports/universe amd64 Packages [35.9 kB] - Fetched 25.8 MB in 34s (758 kB/s) - Reading package lists... - <><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><> [mutaml.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) 2026-04-16 18:17.49 ---> saved as "99481aaa9319c18fe38b9cd2691909f90995b2b253391345a3f5da337953ce1e" /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 23 packages - install base v0.17.3 - install conf-diffutils 2 - install conf-timeout 1 - install cppo 1.8.0 - install csexp 1.5.2 - install dune 3.22.2 - install dune-configurator 3.22.2 - install ocaml-compiler-libs v0.17.0 - install ocaml_intrinsics_kernel v0.17.1 - install ocamlfind 1.9.8 - install octavius 1.2.2 - install ounit2 2.2.7 - install ppx_derivers 1.2.1 - install ppx_deriving 6.1.1 - install ppx_js_style v0.17.1 - install ppx_yojson_conv v0.17.1 - install ppx_yojson_conv_lib v0.17.0 - install ppxlib 0.38.0 - install seq base - install sexplib0 v0.17.0 - install stdlib-random 1.2.0 - install stdlib-shims 0.3.0 - install yojson 3.0.0 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><> -> retrieved base.v0.17.3 (cached) -> retrieved cppo.1.8.0 (cached) -> retrieved csexp.1.5.2 (cached) -> installed conf-diffutils.2 -> installed conf-timeout.1 -> retrieved ocaml-compiler-libs.v0.17.0 (cached) -> retrieved ocaml_intrinsics_kernel.v0.17.1 (cached) -> retrieved octavius.1.2.2 (cached) -> retrieved ocamlfind.1.9.8 (cached) -> retrieved ounit2.2.2.7 (cached) -> retrieved ppx_derivers.1.2.1 (cached) -> retrieved ppx_js_style.v0.17.1 (cached) -> retrieved ppx_deriving.6.1.1 (cached) -> retrieved ppx_yojson_conv.v0.17.1 (cached) -> retrieved ppx_yojson_conv_lib.v0.17.0 (cached) -> retrieved seq.base (cached) -> installed seq.base -> retrieved sexplib0.v0.17.0 (cached) -> retrieved stdlib-random.1.2.0 (cached) -> retrieved stdlib-shims.0.3.0 (cached) -> retrieved yojson.3.0.0 (cached) -> retrieved ppxlib.0.38.0 (cached) -> retrieved dune.3.22.2, dune-configurator.3.22.2 (cached) -> installed ocamlfind.1.9.8 -> installed dune.3.22.2 -> installed csexp.1.5.2 -> installed cppo.1.8.0 -> installed ocaml-compiler-libs.v0.17.0 -> installed ocaml_intrinsics_kernel.v0.17.1 -> installed octavius.1.2.2 -> installed ppx_derivers.1.2.1 -> installed sexplib0.v0.17.0 -> installed stdlib-shims.0.3.0 -> installed yojson.3.0.0 -> installed stdlib-random.1.2.0 -> installed ppx_yojson_conv_lib.v0.17.0 -> installed ounit2.2.2.7 -> installed dune-configurator.3.22.2 -> installed base.v0.17.3 -> installed ppxlib.0.38.0 -> installed ppx_js_style.v0.17.1 -> installed ppx_deriving.6.1.1 -> installed ppx_yojson_conv.v0.17.1 Done. # To update the current shell environment, run: eval $(opam env) 2026-04-16 18:19.14 ---> saved as "7c30e5001acd48436553e08411508f3ddff35b217df7b2691130455d1f65da17" /src: (copy (src .) (dst /src)) 2026-04-16 18:22.38 ---> saved as "3b1918fc4ba8e1c235574522e3deb37feec4097d8870961914fc1febffb036b1" /src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build")) (cd _build/default/examples/testproj-2-modules/test && ./ounittest.exe) .. Ran: 2 tests in: 0.10 seconds. OK (cd _build/default/examples/testproj-1-module && ./ounittest.exe) .... Ran: 4 tests in: 0.11 seconds. OK (cd _build/default && /home/opam/.opam/5.4/bin/ocamlc.opt -w @1..3@5..28@31..39@43@46..47@49..57@61..62@67@69-40 -strict-sequence -strict-formats -short-paths -keep-locs -g -bin-annot -bin-annot-occurrences -I src/ppx/.mutaml_ppx.objs/byte -I /home/opam/.opam/5.4/lib/ocaml-compiler-libs/common -I /home/opam/.opam/5.4/lib/ocaml-compiler-libs/shadow -I /home/opam/.opam/5.4/lib/ocaml/compiler-libs -I /home/opam/.opam/5.4/lib/ppx_derivers -I /home/opam/.opam/5.4/lib/ppx_yojson_conv_lib -I /home/opam/.opam/5.4/lib/ppxlib -I /home/opam/.opam/5.4/lib/ppxlib/ast -I /home/opam/.opam/5.4/lib/ppxlib/astlib -I /home/opam/.opam/5.4/lib/ppxlib/print_diff -I /home/opam/.opam/5.4/lib/ppxlib/stdppx -I /home/opam/.opam/5.4/lib/ppxlib/traverse_builtins -I /home/opam/.opam/5.4/lib/sexplib0 -I /home/opam/.opam/5.4/lib/stdlib-random/v4 -I /home/opam/.opam/5.4/lib/stdlib-shims -I /home/opam/.opam/5.4/lib/yojson -I src/common/.mutaml_common.objs/byte -no-alias-deps -opaque -o src/ppx/.mutaml_ppx.objs/byte/mutaml_ppx.cmo -c -impl src/ppx/mutaml_ppx.pp.ml) File "src/ppx/mutaml_ppx.ml", line 466, characters 9-28: 466 | | _, Pexp_function cases -> ^^^^^^^^^^^^^^^^^^^ Error: The constructor Pexp_function expects 3 argument(s), but is applied here to 1 argument(s) "/usr/bin/env" "bash" "-c" "opam exec -- dune build @install @check @runtest && rm -rf _build" failed with exit status 1 2026-04-16 18:24.49: Job failed: Failed: Build failed