Building on ltsc2025-3
(from ocaml/opam:windows-server-mingw-ltsc2025-opam)
2026-03-09 02:37.41 ---> using "63e5ddb9687855d0a0c4c5e0088f813758807605401f3a88b07751088826ddff" from cache
C:/: (user (uid 1000) (gid 1000))
C:/: (env OPAMPRECISETRACKING 1)
C:/: (env OPAMUTF8 never)
C:/: (env OPAMEXTERNALSOLVER builtin-0install)
C:/: (env OPAMCRITERIA +removed)
C:/: (env CI true)
C:/: (env OPAM_HEALTH_CHECK_CI true)
C:/: (run (shell "ln -f /usr/local/bin/opam-dev.exe /usr/local/bin/opam.exe"))
2026-03-09 02:37.41 ---> using "eb751f1617949fccf400da87a349c508e73323f3f0e3482f2cce8c46fbcb6c21" from cache
C:/: (run (network host)
(shell "rm -rf ~/opam-repository && git clone -q 'https://github.com/ocaml/opam-repository' ~/opam-repository && git -C ~/opam-repository checkout -q 31db989bcaf14647d9889b8903120d6202ac37a8"))
2026-03-09 02:37.41 ---> using "ef58fca6f6db70f2bdfd85579892df7c50e047d2e179a3be59dcaa5c5a2d773c" from cache
C:/: (run (shell "rm -rf ~/.opam && opam init -ya --bare ~/opam-repository"))
User configuration:
Updating ~\.bashrc.
[NOTE] Make sure that ~/.bashrc is well sourced in your ~\.bash_profile.
Added 9 lines after line 1 in ~\.bashrc.
2026-03-09 02:37.41 ---> using "c700dfaf6f2da6800841bb961abfee8cd8858dee38ab51c0793b149f1795270d" from cache
C:/: (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
(network host)
(shell "opam switch create --repositories=default 'mingw-5.4' '5.4.0'"))
<><> Installing new switch packages <><><><><><><><><><><><><><><><><><><><><><>
Switch invariant: ["ocaml-base-compiler" {= "5.4.0"}]
<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> installed arch-x86_64.1
-> installed base-bigarray.base
-> installed base-threads.base
-> installed base-unix.base
-> installed host-arch-x86_64.1
-> installed host-system-mingw.1
-> retrieved mingw-w64-shims.0.2.0 (cached)
-> retrieved flexdll.0.44 (https://github.com/ocaml/flexdll/archive/refs/tags/0.44.tar.gz)
-> installed flexdll.0.44
-> installed ocaml-options-vanilla.1
-> installed conf-mingw-w64-gcc-x86_64.1
-> installed ocaml-env-mingw64.1
-> installed system-mingw.1
-> retrieved ocaml-config.3 (2 extra sources)
-> retrieved ocaml-config.3 (2 extra sources)
-> installed mingw-w64-shims.0.2.0
-> retrieved ocaml-compiler.5.4.0 (https://github.com/ocaml/ocaml/releases/download/5.4.0/ocaml-5.4.0.tar.gz)
-> installed ocaml-compiler.5.4.0
-> installed ocaml-base-compiler.5.4.0
-> installed ocaml-config.3
-> installed ocaml.5.4.0
-> installed base-domains.base
-> installed base-effects.base
-> installed base-nnp.base
Done.
# To update the current shell environment, run: eval $(opam env --switch=mingw-5.4)
2026-03-09 02:37.41 ---> using "bde3e22405d3d4b8eb936b6a5924016abe757c72ef4284f806d0ffa633cf6608" from cache
C:/: (run (network host)
(shell "opam update --depexts"))
2026-03-09 02:37.41 ---> using "52107e23401ba5a409505a63e9d96ae2fb84390238c362f7049829fa18c5671f" from cache
C:/: (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
(network host)
(shell "opam remove -y nbd-unix.6.0.1\
\nopam install -vy nbd-unix.6.0.1\
\nres=$?\
\nif [ $res = 31 ]; then\
\n if opam show -f x-ci-accept-failures: nbd-unix.6.0.1 | grep -q 'ocaml/opam:windows-server-mingw-ltsc2025-opam'; then\
\n echo \"This package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\"\
\n exit 69\
\n fi\
\nfi \
\n\
\n\
\nexit $res"))
[NOTE] nbd-unix.6.0.1 is not installed.
Nothing to do.
The following actions will be performed:
=== recompile 1 package
- recompile mingw-w64-shims 0.2.0 [uses conf-pkg-config]
=== install 47 packages
- install angstrom 0.16.1 [required by uri]
- install base v0.17.3 [required by ppx_sexp_conv]
- install base-bytes base [required by ocplib-endian]
- install bigarray-compat 1.1.0 [required by nbd-unix]
- install bigstringaf 0.10.0 [required by angstrom]
- install conf-libssl 4 [required by ssl]
- install conf-mingw-w64-gcc-i686 1 [required by mingw-w64-shims]
- install conf-mingw-w64-openssl-i686 1 [required by conf-libssl]
- install conf-mingw-w64-openssl-x86_64 1 [required by conf-libssl]
- install conf-pkg-config 4 [required by io-page]
- install cppo 1.8.0 [required by lwt]
- install csexp 1.5.2 [required by dune-configurator]
- install cstruct 6.2.0 [required by mirage-block-unix, io-page, cstruct-lwt, etc.]
- install cstruct-lwt 6.2.0 [required by nbd-unix]
- install dune 3.21.1 [required by nbd-unix]
- install dune-configurator 3.21.1 [required by lwt, ssl]
- install fmt 0.11.0 [required by mirage-block]
- install io-page 3.0.0 [required by nbd-unix]
- install logs 0.10.0 [required by mirage-block-unix]
- install lwt 5.9.2 [required by nbd-unix]
- install lwt_log 1.1.2 [required by nbd]
- install lwt_ssl 1.2.0 [required by nbd-unix]
- install mirage-block 3.0.2 [required by nbd-unix]
- install mirage-block-unix 2.14.2 [required by nbd-unix]
- install nbd 6.0.1 [required by nbd-unix]
- install nbd-unix 6.0.1
- install num 1.6 [required by sexplib]
- install ocaml-compiler-libs v0.17.0 [required by ppxlib]
- install ocaml-syntax-shims 1.0.0 [required by angstrom]
- install ocaml_intrinsics_kernel v0.17.1 [required by base]
- install ocamlbuild 0.16.1 [required by logs, rresult]
- install ocamlfind 1.9.8 [required by logs, rresult]
- install ocplib-endian 1.2 [required by lwt]
- install parsexp v0.17.0 [required by sexplib]
- install ppx_cstruct 6.2.0 [required by nbd]
- install ppx_derivers 1.2.1 [required by ppxlib]
- install ppx_sexp_conv v0.17.1 [required by nbd]
- install ppxlib 0.37.0 [required by ppx_cstruct, ppx_sexp_conv]
- install ppxlib_jane v0.17.4 [required by ppx_sexp_conv]
- install rresult 0.7.0 [required by mirage-block-unix, nbd]
- install sexplib v0.17.0 [required by nbd]
- install sexplib0 v0.17.0 [required by ppx_sexp_conv]
- install ssl 0.7.0 [required by nbd-unix]
- install stdlib-shims 0.3.0 [required by ppxlib]
- install stringext 1.6.0 [required by uri]
- install topkg 1.1.1 [required by logs, rresult]
- install uri 4.4.0 [required by mirage-block-unix, nbd]
The following system packages will first need to be installed:
mingw64-i686-gcc-core mingw64-i686-openssl mingw64-x86_64-openssl pkgconf
<><> Handling external dependencies <><><><><><><><><><><><><><><><><><><><><><>
opam believes some required external dependencies are missing. opam can:
> 1. Run C:\opam\.opam\.cygwin\setup-x86_64.exe to install them (may need root/sudo access)
2. Display the recommended C:\opam\.opam\.cygwin\setup-x86_64.exe command and wait while you run it manually (e.g. in another terminal)
3. Continue anyway, and, upon success, permanently register that this external dependency is present, but not detectable
4. Abort the installation
[NOTE] You can retry with '--assume-depexts' to skip this check, or run 'opam option depext=false' to permanently disable handling of system packages.
Running the system package manager non-interactively requires '--confirm-level=unsafe-yes'.
[1/2/3/4] 4
'C:\cygwin64\usr\local\bin\opam.exe install -vy nbd-unix.6.0.1' failed.
"C:\cygwin64\bin\bash.exe" "-lc" "opam remove -y nbd-unix.6.0.1
opam install -vy nbd-unix.6.0.1
res=$?
if [ $res = 31 ]; then
if opam show -f x-ci-accept-failures: nbd-unix.6.0.1 | grep -q 'ocaml/opam:windows-server-mingw-ltsc2025-opam'; then
echo "This package failed and has been disabled for CI using the 'x-ci-accept-failures' field."
exit 69
fi
fi
exit $res" failed with exit status 10
Failed: Build failed
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