2026-06-14 12:31.34: New job: test ahrefs/devkit https://github.com/ahrefs/devkit.git#refs/heads/master (a805e833a2cb30f3e40095de8caee33b48ef46f3) (windows-x86_64:windows-server-mingw-ltsc2025-5.4_opam-2.5) Base: ocaml/opam:windows-server-mingw-ltsc2025-ocaml-5.4@sha256:6b6bcfd98b4600d5c8de1feffe95b566f1c337d961157c2fea3ccf3e3c5939bd Opam project build To reproduce locally: git clone --recursive "https://github.com/ahrefs/devkit.git" -b "master" && cd "devkit" && git reset --hard a805e833 cat > Dockerfile <<'END-OF-DOCKERFILE' FROM ocaml/opam:windows-server-mingw-ltsc2025-ocaml-5.4@sha256:6b6bcfd98b4600d5c8de1feffe95b566f1c337d961157c2fea3ccf3e3c5939bd # windows-server-mingw-ltsc2025-5.4_opam-2.5 USER 1000:1000 ENV CLICOLOR_FORCE="1" ENV OPAMCOLOR="always" RUN ln -f /usr/local/bin/opam-2.5 /usr/local/bin/opam RUN cd ~/opam-repository && (git cat-file -e e8dee6070985e2146f9ef14e5432de435831e572 || git fetch origin master) && git reset -q --hard e8dee6070985e2146f9ef14e5432de435831e572 && git log --no-decorate -n1 --oneline RUN opam init --reinit -ni RUN uname -rs && opam exec -- ocaml -version && opam --version RUN opam update -u COPY --chown=1000:1000 devkit.opam /cygwin64/home/opam/src/./ RUN opam pin add -yn devkit.dev '/cygwin64/home/opam/src/./' RUN echo '(lang dune 3.0)' > '/home/opam/src/./dune-project' ENV DEPS="arch-x86_64.1 astring.0.8.5 base-bigarray.base base-bytes.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base camlzip.1.14 conf-libcurl.2 conf-libevent.1 conf-libpcre2-8.2 conf-mingw-w64-curl-x86_64.1 conf-mingw-w64-gcc-x86_64.1 conf-mingw-w64-libevent-x86_64.1 conf-mingw-w64-pcre2-x86_64.1 conf-mingw-w64-zlib-x86_64.1 conf-pkg-config.5 conf-zlib.1 cppo.1.8.0 csexp.1.5.2 cstruct.6.2.0 curl.0.10.0 curl_lwt.0.10.0 dune.3.23.1 dune-compiledb.0.6.0 dune-configurator.3.23.1 extlib.1.8.0 extunix.0.4.4 ezjsonm.1.3.0 flexdll.0.44 fmt.0.11.0 fpath.0.7.3 hex.1.5.0 host-arch-x86_64.1 host-system-mingw.1 jsonm.1.0.2 libevent.0.9.0 lwt.6.1.2 lwt_ppx.6.1.0 mingw-w64-shims.1.0.1 num.1.6 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-env-mingw64.1 ocaml-options-vanilla.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 ocurl.transition ounit2.2.2.7 parsexp.v0.17.0 pcre2.8.0.4 ppx_derivers.1.2.1 ppxlib.0.38.0 seq.base sexplib.v0.17.0 sexplib0.v0.17.0 stdlib-shims.0.3.0 system-mingw.1 topkg.1.1.1 trace.0.12 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 devkit.dev $DEPS RUN opam install $DEPS COPY --chown=1000:1000 . /cygwin64/home/opam/src RUN cd /home/opam/src && opam exec -- dune build @install @check @runtest && rm -rf _build END-OF-DOCKERFILE docker build . END-REPRO-BLOCK 2026-06-14 12:31.34: Using cache hint "ahrefs/devkit-ocaml/opam:windows-server-mingw-ltsc2025-ocaml-5.4@sha256:6b6bcfd98b4600d5c8de1feffe95b566f1c337d961157c2fea3ccf3e3c5939bd-windows-server-mingw-ltsc2025-5.4_opam-2.5-b7e9cd9a1bf5c782b61ca1330d55360d" 2026-06-14 12:31.34: Using OBuilder spec: ((from ocaml/opam:windows-server-mingw-ltsc2025-ocaml-5.4@sha256:6b6bcfd98b4600d5c8de1feffe95b566f1c337d961157c2fea3ccf3e3c5939bd) (comment windows-server-mingw-ltsc2025-5.4_opam-2.5) (user (uid 1000) (gid 1000)) (env CLICOLOR_FORCE 1) (env OPAMCOLOR always) (run (shell "ln -f /usr/local/bin/opam-2.5 /usr/local/bin/opam")) (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache"))) (network host) (shell "cd ~/opam-repository && (git cat-file -e e8dee6070985e2146f9ef14e5432de435831e572 || git fetch origin master) && git reset -q --hard e8dee6070985e2146f9ef14e5432de435831e572 && git log --no-decorate -n1 --oneline")) (run (shell "opam init --reinit -ni")) (run (shell "uname -rs && opam exec -- ocaml -version && opam --version")) (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache"))) (network host) (shell "opam update -u")) (copy (src devkit.opam) (dst /cygwin64/home/opam/src/./)) (run (network host) (shell "opam pin add -yn devkit.dev '/cygwin64/home/opam/src/./'")) (run (shell "echo '(lang dune 3.0)' > '/home/opam/src/./dune-project'")) (env DEPS "arch-x86_64.1 astring.0.8.5 base-bigarray.base base-bytes.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base camlzip.1.14 conf-libcurl.2 conf-libevent.1 conf-libpcre2-8.2 conf-mingw-w64-curl-x86_64.1 conf-mingw-w64-gcc-x86_64.1 conf-mingw-w64-libevent-x86_64.1 conf-mingw-w64-pcre2-x86_64.1 conf-mingw-w64-zlib-x86_64.1 conf-pkg-config.5 conf-zlib.1 cppo.1.8.0 csexp.1.5.2 cstruct.6.2.0 curl.0.10.0 curl_lwt.0.10.0 dune.3.23.1 dune-compiledb.0.6.0 dune-configurator.3.23.1 extlib.1.8.0 extunix.0.4.4 ezjsonm.1.3.0 flexdll.0.44 fmt.0.11.0 fpath.0.7.3 hex.1.5.0 host-arch-x86_64.1 host-system-mingw.1 jsonm.1.0.2 libevent.0.9.0 lwt.6.1.2 lwt_ppx.6.1.0 mingw-w64-shims.1.0.1 num.1.6 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-env-mingw64.1 ocaml-options-vanilla.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 ocurl.transition ounit2.2.2.7 parsexp.v0.17.0 pcre2.8.0.4 ppx_derivers.1.2.1 ppxlib.0.38.0 seq.base sexplib.v0.17.0 sexplib0.v0.17.0 stdlib-shims.0.3.0 system-mingw.1 topkg.1.1.1 trace.0.12 uutf.1.0.4 yojson.3.0.0") (env CI true) (env OCAMLCI true) (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache"))) (network host) (shell "opam update --depexts && opam install --cli=2.5 --depext-only -y devkit.dev $DEPS")) (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache"))) (network host) (shell "opam install $DEPS")) (copy (src .) (dst /cygwin64/home/opam/src)) (run (shell "cd /home/opam/src && opam exec -- dune build @install @check @runtest && rm -rf _build")) ) 2026-06-14 12:31.34: Waiting for resource in pool OCluster 2026-06-14 12:31.34: Waiting for worker… 2026-06-14 21:14.45: Connecting to build cluster… 2026-06-14 21:14.56: Waiting for worker… 2026-06-15 02:50.20: Got resource from pool OCluster Building on ltsc2025-3 All commits already cached HEAD is now at a805e83 drop last mentions of logstash (from ocaml/opam:windows-server-mingw-ltsc2025-ocaml-5.4@sha256:6b6bcfd98b4600d5c8de1feffe95b566f1c337d961157c2fea3ccf3e3c5939bd) 2026-06-15 02:50.32 ---> using "47f7838a4aa9bba8b4a71358c252d241055ea2dd7e9e55067a8fc43fd8ca6486" from cache C:/: (comment windows-server-mingw-ltsc2025-5.4_opam-2.5) C:/: (user (uid 1000) (gid 1000)) C:/: (env CLICOLOR_FORCE 1) C:/: (env OPAMCOLOR always) C:/: (run (shell "ln -f /usr/local/bin/opam-2.5 /usr/local/bin/opam")) 2026-06-15 02:50.32 ---> using "13c53a6739a624f85cfa07c5897ebb2fe832e07df2a198c2ee35e9bcf7662cb5" from cache C:/: (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache"))) (network host) (shell "cd ~/opam-repository && (git cat-file -e e8dee6070985e2146f9ef14e5432de435831e572 || git fetch origin master) && git reset -q --hard e8dee6070985e2146f9ef14e5432de435831e572 && git log --no-decorate -n1 --oneline")) From https://github.com/ocaml/opam-repository * branch master -> FETCH_HEAD 1138ca347f..bfde4320ee master -> origin/master warning: unable to unlink '/home/opam/opam-repository/.git/objects/maintenance.lock': Permission denied e8dee60709 Merge pull request #30040 from dra27/mingw-w64-shims 2026-06-15 02:50.32 ---> using "968082438e6e0a223c5af51e65b532a0b40f74cd1f589011be373780a37d5378" from cache C:/: (run (shell "opam init --reinit -ni")) No configuration file found, using built-in defaults. <><> Unix support infrastructure ><><><><><><><><><><><><><><><><><><><><><><><> opam and the OCaml ecosystem in general require various Unix tools in order to operate correctly. At present, this requires the installation of Cygwin to provide these tools. How should opam obtain Unix tools? > 1. Use tools found in PATH (Cygwin installation at C:\cygwin64) 2. Automatically create an internal Cygwin installation that will be managed by opam (recommended) 3. Use Cygwin installation found in C:\cygwin64 4. Use another existing Cygwin/MSYS2 installation 5. Abort initialisation [1/2/3/4/5] 1 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. <><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><> [default] Initialised 2026-06-15 02:50.32 ---> using "aa68071369c6fd8d9655c43e16dbd60ef3c328bc3a39a290cdd7d5ae8f661453" from cache C:/: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version")) CYGWIN_NT-10.0-26100 3.6.9-1.x86_64 The OCaml toplevel, version 5.4.1 2.5.1 2026-06-15 02:50.32 ---> using "7bd0a3ba5f5c6afdfde4f7b76f874f9977ac54eca590d91d0c0f2acc489f454c" from cache C:/: (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache"))) (network host) (shell "opam update -u")) <><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><> [default] no changes from git+file://C:/cygwin64/home/opam/opam-repository The following actions will be performed: === recompile 10 packages - recompile base-domains base [uses ocaml] - recompile base-effects base [uses ocaml] - recompile base-nnp base [uses base-domains] - recompile conf-mingw-w64-gcc-x86_64 1 [uses mingw-w64-shims] - recompile ocaml 5.4.1 [uses ocaml-env-mingw64] - recompile ocaml-base-compiler 5.4.1 (pinned) [uses ocaml-compiler] - recompile ocaml-compiler 5.4.1 [uses system-mingw] - recompile ocaml-config 3 [uses ocaml-base-compiler] - recompile ocaml-env-mingw64 1 [uses mingw-w64-shims] - recompile system-mingw 1 [uses ocaml-env-mingw64] === upgrade 1 package - upgrade mingw-w64-shims 0.2.0 to 1.0.1 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><> -> retrieved ocaml-config.3 (cached) -> removed base-effects.base -> removed base-nnp.base -> removed base-domains.base -> removed ocaml.5.4.1 -> removed ocaml-config.3 -> removed ocaml-base-compiler.5.4.1 -> retrieved conf-mingw-w64-gcc-x86_64.1 (cached) -> retrieved ocaml-compiler.5.4.1 (cached) -> removed ocaml-compiler.5.4.1 -> removed system-mingw.1 -> removed ocaml-env-mingw64.1 -> removed mingw-w64-shims.0.2.0 -> removed conf-mingw-w64-gcc-x86_64.1 -> installed mingw-w64-shims.1.0.1 -> installed conf-mingw-w64-gcc-x86_64.1 -> installed ocaml-env-mingw64.1 -> installed system-mingw.1 -> installed ocaml-compiler.5.4.1 -> installed ocaml-base-compiler.5.4.1 -> installed ocaml-config.3 -> installed ocaml.5.4.1 -> installed base-domains.base -> installed base-effects.base -> installed base-nnp.base Done. # To update the current shell environment, run: eval $(opam env) 2026-06-15 02:50.32 ---> using "1f974f2a6db6f8322b3912acb34c625201b303dd7504b5a6e613ac834a53be66" from cache C:/: (copy (src devkit.opam) (dst /cygwin64/home/opam/src/./)) 2026-06-15 02:51.29 ---> saved as "44194d8ad2db48594e1b8fdcd8883f20c5f7dddfb953590badd8d11962c96632" C:/: (run (network host) (shell "opam pin add -yn devkit.dev '/cygwin64/home/opam/src/./'")) Failure("Failed to prepare snapshot obuilder-bf4e97756a4fbd74514b3394f74e8064f5c4d6629208493ab179bd5f6fd53145: \"ctr\" \"snapshot\" \"prepare\" \"--mounts\" \"obuilder-bf4e97756a4fbd74514b3394f74e8064f5c4d6629208493ab179bd5f6fd53145\" \"obuilder-44194d8ad2db48594e1b8fdcd8883f20c5f7dddfb953590badd8d11962c96632-committed\" failed with exit status 1") 2026-06-15 02:51.53: Job failed: Failed: Build failed