Building on ltsc2025-2
(from ocaml/opam:windows-server-mingw-ltsc2025-opam)
2026-03-26 08:22.06 ---> 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"))
2026-03-26 08:22.06 ---> 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 e589be2bb3f3c3428c9c98a122428f3ad2d44845"))
2026-03-26 08:22.06 ---> using "e45ceda38848c636c52a582b7b0e0300f8265fd055608e2010eb9091af016259" 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.
2026-03-26 08:22.06 ---> using "fca0867f47a2fc38aa8538df0aa1321357eb4edfd9be8bd5b70f35382e16c023" 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 flexdll.0.44 (https://github.com/ocaml/flexdll/archive/refs/tags/0.44.tar.gz)
-> installed flexdll.0.44
-> retrieved mingw-w64-shims.0.2.0 (https://github.com/dra27/mingw-w64-shims/archive/refs/tags/0.2.0.tar.gz)
-> 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 $(opam env --switch=mingw-5.4)
2026-03-26 08:22.06 ---> using "50e23bda8cb7e182e2fb806cb3f1c6566c93ab53027ddfe1f4220b08bd2bf8f7" from cache
C:/: (run (network host)
(shell "opam update --depexts"))
2026-03-26 08:22.06 ---> using "882bc898cf68e632dee31003c12789c688566b3783a36d413db7b6a44325a086" from cache
C:/: (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
(network host)
(shell "opam remove -y slacko.0.15.0\
\nopam install -vy slacko.0.15.0\
\nres=$?\
\nif [ $res = 31 ]; then\
\n if opam show -f x-ci-accept-failures: slacko.0.15.0 | 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"))
Nothing to do.
[NOTE] slacko.0.15.0 is not installed.
The following actions will be performed:
=== recompile 1 package
- recompile mingw-w64-shims 0.2.0 [uses conf-mingw-w64-gcc-i686]
=== install 76 packages
- install angstrom 0.16.1 [required by uri]
- install asn1-combinators 0.2.6 [required by x509]
- install astring 0.8.5 [required by conduit, ca-certs]
- install base v0.17.3 [required by ppx_sexp_conv]
- install base-bytes base [required by ocplib-endian]
- install base64 3.5.2 [required by cohttp]
- install bigstringaf 0.10.0 [required by angstrom]
- install biniou 1.2.2 [required by yojson]
- install bos 0.2.1 [required by ca-certs]
- install ca-certs 0.2.3 [required by conduit-lwt-unix]
- install camlp-streams 5.0.1 [required by biniou]
- install cmdliner 1.3.0 [required by slacko]
- install cohttp 6.1.1 [required by cohttp-lwt-unix]
- install cohttp-lwt 6.1.1 [required by cohttp-lwt-unix]
- install cohttp-lwt-unix 6.1.1 [required by slacko]
- install conduit 8.0.0 [required by conduit-lwt]
- install conduit-lwt 8.0.0 [required by cohttp-lwt-unix]
- install conduit-lwt-unix 8.0.0 [required by cohttp-lwt-unix]
- install conf-gmp 5 [required by zarith, conf-gmp-powm-sec]
- install conf-gmp-powm-sec 4 [required by mirage-crypto-pk]
- install conf-mingw-w64-gcc-i686 1 [required by conf-mingw-w64-gmp-i686]
- install conf-mingw-w64-gmp-i686 1 [required by conf-gmp]
- install conf-mingw-w64-gmp-x86_64 1 [required by conf-gmp]
- install conf-pkg-config 4 [required by zarith]
- install cppo 1.8.0 [required by ppx_deriving, yojson]
- install csexp 1.5.2 [required by dune-configurator]
- install cstruct 6.2.0 [required by tls]
- install domain-name 0.5.0 [required by tls]
- install dune 3.21.1 [required by slacko]
- install dune-configurator 3.21.1 [required by base, lwt, mirage-crypto]
- install duration 0.2.1 [required by mirage-crypto-rng]
- install easy-format 1.3.4 [required by yojson]
- install eqaf 0.9 [required by mirage-crypto]
- install fmt 0.11.0 [required by cohttp-lwt-unix, tls]
- install fpath 0.7.3 [required by ca-certs]
- install gmap 0.3.0 [required by x509]
- install hkdf 1.0.4 (deprecated) [required by tls]
- install http 6.1.1 [required by cohttp-lwt-unix]
- install ipaddr 5.6.2 [required by tls]
- install ipaddr-sexp 5.6.2 [required by conduit-lwt-unix]
- install logs 0.10.0 [required by cohttp-lwt-unix, tls]
- install lwt 6.1.1 [required by slacko]
- install lwt_ppx 6.1.0 [required by slacko]
- install macaddr 5.6.2 [required by ipaddr]
- install magic-mime 1.3.1 [required by cohttp-lwt-unix]
- install mirage-crypto 0.11.3 [required by tls]
- install mirage-crypto-ec 0.11.3 [required by tls]
- install mirage-crypto-pk 0.11.3 [required by tls]
- install mirage-crypto-rng 0.11.3 [required by tls]
- 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]
- install ocamlfind 1.9.8 [required by ppx_deriving]
- install ocplib-endian 1.2 [required by lwt]
- install pbkdf 1.2.0 [required by x509]
- install ppx_derivers 1.2.1 [required by ppx_deriving]
- install ppx_deriving 6.1.1 [required by ppx_deriving_yojson]
- install ppx_deriving_yojson 3.10.0 [required by slacko]
- install ppx_sexp_conv v0.17.1 [required by cohttp-lwt-unix]
- install ppxlib 0.38.0~5.5preview [required by lwt_ppx, ppx_deriving_yojson]
- install ppxlib_jane v0.17.4 [required by ppx_sexp_conv]
- install ptime 1.2.0 [required by slacko]
- install re 1.14.0 [required by cohttp]
- install rresult 0.7.0 [required by bos]
- install sexplib0 v0.17.0 [required by cohttp-lwt, cohttp, conduit-lwt]
- install slacko 0.15.0
- install stdlib-shims 0.3.0 [required by ppxlib]
- install stringext 1.6.0 [required by cohttp]
- install tls 0.17.5 [required by slacko]
- install topkg 1.1.1 [required by logs]
- install uri 4.4.0 [required by cohttp-lwt, cohttp, conduit-lwt-unix]
- install uri-sexp 4.4.0 [required by cohttp]
- install x509 0.16.5 [required by tls]
- install yojson 1.7.0 [required by slacko]
- install zarith 1.14 [required by asn1-combinators, mirage-crypto-pk]
The following system packages will first need to be installed:
mingw64-i686-gcc-core mingw64-i686-gmp mingw64-x86_64-gmp 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
[1/2/3/4] 4
[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'.
'C:\cygwin64\usr\local\bin\opam.exe install -vy slacko.0.15.0' failed.
"C:\cygwin64\bin\bash.exe" "-lc" "opam remove -y slacko.0.15.0
opam install -vy slacko.0.15.0
res=$?
if [ $res = 31 ]; then
if opam show -f x-ci-accept-failures: slacko.0.15.0 | 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