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Building on thyme

(from windows-server-2022-amd64-ocaml-5.3)
2026-01-01 02:53.45 ---> using "1d6ffeb5a52124df73b2e951323e99615c52ca4f9bdf0f65039be6146fabdaab" from cache

/: (user (uid 1000) (gid 1000))

/: (env OPAMPRECISETRACKING 1)

/: (env OPAMUTF8 never)

/: (env OPAMEXTERNALSOLVER builtin-0install)

/: (env OPAMCRITERIA +removed)

/: (env CI true)

/: (env OPAM_HEALTH_CHECK_CI true)

/: (run (shell "ln -f /usr/bin/opam-dev.exe /usr/bin/opam.exe"))
2026-01-01 02:53.45 ---> using "75bf3fbea1cbc65a9803f40104651d67c546cddf5606f6a4af6db8fca92eb5c0" from cache

/: (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 235b964523a3fb438c9ad050e86b03e07685c4c1"))
2026-01-01 02:53.45 ---> using "ce72607792e3717d7890fe9ffe950c84bb4035b737fa8276353420335e367f48" from cache

/: (run (shell "rm -rf ~/.opam && opam init -ya --bare ~/opam-repository"))

User configuration:
  Updating ~\.bash_profile.
[NOTE] Make sure that ~\.bash_profile is well sourced in your ~/.bashrc.

  Added 9 lines after line 1 in ~\.bash_profile.
2026-01-01 02:53.45 ---> using "84ff5abf2562b40da7c3bbb60d261ddf3675a821590d1f48a3bd40ee1043a040" from cache

/: (run (cache (opam-archives (target "c:\\Users\\opam\\AppData\\Local\\opam\\download-cache")))
        (network host)
        (shell "opam switch create --repositories=default '5.3' '5.3.0'"))

<><> Installing new switch packages <><><><><><><><><><><><><><><><><><><><><><>
Switch invariant: ["ocaml-base-compiler" {= "5.3.0"} | "ocaml-system" {= "5.3.0"}]

<><> 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  (cached)
-> retrieved ocaml-config.3  (cached)
-> installed flexdll.0.44
-> installed ocaml-options-vanilla.1
-> retrieved mingw-w64-shims.0.2.0  (cached)
-> installed conf-mingw-w64-gcc-x86_64.1
-> installed ocaml-env-mingw64.1
-> installed system-mingw.1
-> retrieved ocaml-compiler.5.3.0  (cached)
-> installed mingw-w64-shims.0.2.0
-> installed ocaml-compiler.5.3.0
-> installed ocaml-base-compiler.5.3.0
-> installed ocaml-config.3
-> installed ocaml.5.3.0
-> installed base-domains.base
-> installed base-effects.base
-> installed base-nnp.base
Done.
# To update the current shell environment, run: eval $(opam env --switch=5.3)
2026-01-01 02:53.45 ---> using "82e51e55029ba8c5bb8f9c1b383df7d99ae7f925c131c81a291ef9037a5c4de1" from cache

/: (run (network host)
        (shell "opam update --depexts"))
2026-01-01 02:53.45 ---> using "3220698d912df6483e7c8e021a743df47a557d0d966fa6ecb0aeae0ad2c51ff5" from cache

/: (run (cache (opam-archives (target "c:\\Users\\opam\\AppData\\Local\\opam\\download-cache")))
        (network host)
        (shell  "opam remove -y shared-block-ring.3.0.1\
               \nopam install -vy shared-block-ring.3.0.1\
               \nres=$?\
               \nif [ $res = 31 ]; then\
               \n    if opam show -f x-ci-accept-failures: shared-block-ring.3.0.1 | grep -q 'windows-server-2022-amd64-ocaml-5.3'; 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] shared-block-ring.3.0.1 is not installed.

The following actions will be performed:
=== recompile 1 package
  - recompile mingw-w64-shims         0.2.0             [uses conf-pkg-config]
=== install 45 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   bigstringaf             0.10.0            [required by angstrom]
  - install   cmdliner                1.3.0             [required by shared-block-ring]
  - 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 shared-block-ring]
  - install   cstruct-lwt             6.2.0             [required by mirage-block-unix]
  - install   dune                    3.19.1            [required by shared-block-ring]
  - install   dune-configurator       3.19.1            [required by lwt, base]
  - install   duration                0.2.1             [required by shared-block-ring]
  - install   fmt                     0.11.0            [required by logs, cstruct, mirage-block]
  - install   io-page                 3.0.0             [required by shared-block-ring]
  - install   logs                    0.9.0             [required by shared-block-ring]
  - install   lwt                     6.0.0~alpha00     [required by shared-block-ring]
  - install   lwt_log                 1.1.2             [required by shared-block-ring]
  - install   mirage-block            3.0.2             [required by shared-block-ring]
  - install   mirage-block-unix       2.14.2            [required by shared-block-ring]
  - install   mirage-clock            4.2.0             [required by shared-block-ring]
  - install   mirage-time             3.0.0             [required by shared-block-ring]
  - install   mirage-time-unix        3.0.0             [required by shared-block-ring]
  - 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]
  - install   ocamlfind               1.9.8             [required by logs]
  - install   ocplib-endian           1.2               [required by lwt]
  - install   parsexp                 v0.17.0           [required by sexplib]
  - install   ppx_cstruct             6.2.0             [required by shared-block-ring]
  - install   ppx_derivers            1.2.1             [required by ppxlib]
  - install   ppx_sexp_conv           v0.17.1           [required by shared-block-ring]
  - install   ppxlib                  0.37.0~5.4preview [required by ppx_cstruct, ppx_sexp_conv]
  - install   ppxlib_jane             v0.17.4           [required by ppx_sexp_conv]
  - install   result                  1.5               [required by shared-block-ring]
  - install   rresult                 0.7.0             [required by shared-block-ring]
  - install   sexplib                 v0.17.0           [required by shared-block-ring]
  - install   sexplib0                v0.17.0           [required by shared-block-ring]
  - install   shared-block-ring       3.0.1
  - install   stdlib-shims            0.3.0             [required by ppxlib]
  - install   stringext               1.6.0             [required by uri]
  - install   topkg                   1.1.0             [required by logs]
  - install   uri                     4.4.0             [required by mirage-block-unix]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Processing  1/135: [angstrom.0.16.1: extract]
Processing  2/135: [angstrom.0.16.1: extract] [base.v0.17.3: http]
Processing  3/135: [angstrom.0.16.1: extract] [base.v0.17.3: http]
Processing  4/135: [angstrom.0.16.1: extract] [base.v0.17.3: http] [bigstringaf.0.10.0: extract]
-> retrieved angstrom.0.16.1  (cached)
Processing  4/135: [base.v0.17.3: http] [bigstringaf.0.10.0: extract]
Processing  5/135: [base.v0.17.3: http] [bigstringaf.0.10.0: extract] [cmdliner.1.3.0: extract]
-> retrieved bigstringaf.0.10.0  (cached)
Processing  5/135: [base.v0.17.3: http] [cmdliner.1.3.0: extract]
Processing  6/135: [base.v0.17.3: http] [cmdliner.1.3.0: extract]
Processing  7/135: [base.v0.17.3: http] [cmdliner.1.3.0: extract] [cppo.1.8.0: extract]
Processing  8/135: [base.v0.17.3: http] [cmdliner.1.3.0: extract] [cppo.1.8.0: extract] [conf-pkg-config: pkgconf]
Processing  8/135: [base.v0.17.3: extract] [cmdliner.1.3.0: extract] [cppo.1.8.0: extract] [conf-pkg-config: pkgconf]
-> retrieved cmdliner.1.3.0  (cached)
Processing  8/135: [base.v0.17.3: extract] [cppo.1.8.0: extract] [conf-pkg-config: pkgconf]
Processing  9/135: [base.v0.17.3: extract] [cppo.1.8.0: extract] [csexp.1.5.2: extract] [conf-pkg-config: pkgconf]
Processing 10/135: [base.v0.17.3: extract] [cppo.1.8.0: extract] [csexp.1.5.2: extract] [cmdliner: make all] [conf-pkg-config: pkgconf]
-> retrieved cppo.1.8.0  (cached)
Processing 10/135: [base.v0.17.3: extract] [csexp.1.5.2: extract] [cmdliner: make all] [conf-pkg-config: pkgconf]
Processing 11/135: [base.v0.17.3: extract] [csexp.1.5.2: extract] [cstruct.6.2.0 + 2 others: extract] [cmdliner: make all] [conf-pkg-config: pkgconf]
-> retrieved base.v0.17.3  (https://github.com/janestreet/base/archive/refs/tags/v0.17.3.tar.gz)
Processing 11/135: [csexp.1.5.2: extract] [cstruct.6.2.0 + 2 others: extract] [cmdliner: make all] [conf-pkg-config: pkgconf]
Processing 12/135: [csexp.1.5.2: extract] [cstruct.6.2.0 + 2 others: extract] [dune.3.19.1, dune-configurator.3.19.1: http] [cmdliner: make all] [conf-pkg-config: pkgconf]
-> retrieved csexp.1.5.2  (cached)
Processing 12/135: [cstruct.6.2.0 + 2 others: extract] [dune.3.19.1, dune-configurator.3.19.1: http] [cmdliner: make all] [conf-pkg-config: pkgconf]
Processing 13/135: [cstruct.6.2.0 + 2 others: extract] [dune.3.19.1, dune-configurator.3.19.1: http] [duration.0.2.1: extract] [cmdliner: make all] [conf-pkg-config: pkgconf]
-> retrieved cstruct.6.2.0, cstruct-lwt.6.2.0, ppx_cstruct.6.2.0  (cached)
Processing 13/135: [dune.3.19.1, dune-configurator.3.19.1: http] [duration.0.2.1: extract] [cmdliner: make all] [conf-pkg-config: pkgconf]
Processing 14/135: [dune.3.19.1, dune-configurator.3.19.1: http] [duration.0.2.1: extract] [fmt.0.11.0: http] [cmdliner: make all] [conf-pkg-config: pkgconf]
Processing 14/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [duration.0.2.1: extract] [fmt.0.11.0: http] [cmdliner: make all] [conf-pkg-config: pkgconf]
-> retrieved duration.0.2.1  (cached)
Processing 14/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [fmt.0.11.0: http] [cmdliner: make all] [conf-pkg-config: pkgconf]
Processing 15/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [fmt.0.11.0: http] [io-page.3.0.0: extract] [cmdliner: make all] [conf-pkg-config: pkgconf]
Processing 15/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [fmt.0.11.0: extract] [io-page.3.0.0: extract] [cmdliner: make all] [conf-pkg-config: pkgconf]
-> retrieved io-page.3.0.0  (cached)
Processing 15/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [fmt.0.11.0: extract] [cmdliner: make all] [conf-pkg-config: pkgconf]
Processing 16/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [fmt.0.11.0: extract] [logs.0.9.0: http] [cmdliner: make all] [conf-pkg-config: pkgconf]
-> retrieved fmt.0.11.0  (https://erratique.ch/software/fmt/releases/fmt-0.11.0.tbz)
Processing 16/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [logs.0.9.0: http] [cmdliner: make all] [conf-pkg-config: pkgconf]
Processing 17/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [logs.0.9.0: http] [lwt.6.0.0~alpha00: http] [cmdliner: make all] [conf-pkg-config: pkgconf]
+ C:\cygwin64\bin\pkgconf.exe "--version" (CWD=C:\Users\opam\AppData\Local\opam\5.3\.opam-switch\build\conf-pkg-config.4)
- 2.5.1
-> compiled  conf-pkg-config.4
Processing 17/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [logs.0.9.0: http] [lwt.6.0.0~alpha00: http] [cmdliner: make all]
-> installed conf-pkg-config.4
Processing 18/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [logs.0.9.0: http] [lwt.6.0.0~alpha00: http] [cmdliner: make all]
Processing 18/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [logs.0.9.0: extract] [lwt.6.0.0~alpha00: http] [cmdliner: make all]
Processing 18/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [logs.0.9.0: extract] [lwt.6.0.0~alpha00: extract] [cmdliner: make all]
-> retrieved logs.0.9.0  (https://erratique.ch/software/logs/releases/logs-0.9.0.tbz)
Processing 18/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [lwt.6.0.0~alpha00: extract] [cmdliner: make all]
Processing 19/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [lwt.6.0.0~alpha00: extract] [lwt_log.1.1.2: extract] [cmdliner: make all]
-> retrieved lwt_log.1.1.2  (cached)
Processing 19/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [lwt.6.0.0~alpha00: extract] [cmdliner: make all]
Processing 20/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [lwt.6.0.0~alpha00: extract] [mingw-w64-shims.0.2.0: extract] [cmdliner: make all]
-> retrieved mingw-w64-shims.0.2.0  (cached)
Processing 20/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [lwt.6.0.0~alpha00: extract] [cmdliner: make all]
Processing 21/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [lwt.6.0.0~alpha00: extract] [cmdliner: make all]
Processing 22/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [lwt.6.0.0~alpha00: extract] [mirage-block.3.0.2: extract] [cmdliner: make all]
Processing 23/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [lwt.6.0.0~alpha00: extract] [mirage-block.3.0.2: extract] [cmdliner: make all] [mingw-w64-shims: sh mingw-w64-shims]
-> retrieved lwt.6.0.0~alpha00  (https://github.com/ocsigen/lwt/archive/refs/tags/6.0.0-alpha00.tar.gz)
Processing 23/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [mirage-block.3.0.2: extract] [cmdliner: make all] [mingw-w64-shims: sh mingw-w64-shims]
Processing 24/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [mirage-block.3.0.2: extract] [mirage-block-unix.2.14.2: extract] [cmdliner: make all] [mingw-w64-shims: sh mingw-w64-shims]
-> retrieved mirage-block.3.0.2  (cached)
Processing 24/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [mirage-block-unix.2.14.2: extract] [cmdliner: make all] [mingw-w64-shims: sh mingw-w64-shims]
Processing 25/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [mirage-block-unix.2.14.2: extract] [mirage-clock.4.2.0: extract] [cmdliner: make all] [mingw-w64-shims: sh mingw-w64-shims]
-> retrieved mirage-block-unix.2.14.2  (cached)
Processing 25/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [mirage-clock.4.2.0: extract] [cmdliner: make all] [mingw-w64-shims: sh mingw-w64-shims]
Processing 26/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [mirage-clock.4.2.0: extract] [mirage-time.3.0.0, mirage-time-unix.3.0.0: extract] [cmdliner: make all] [mingw-w64-shims: sh mingw-w64-shims]
-> retrieved mirage-clock.4.2.0  (cached)
Processing 26/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [mirage-time.3.0.0, mirage-time-unix.3.0.0: extract] [cmdliner: make all] [mingw-w64-shims: sh mingw-w64-shims]
Processing 27/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [mirage-time.3.0.0, mirage-time-unix.3.0.0: extract] [num.1.6: http] [cmdliner: make all] [mingw-w64-shims: sh mingw-w64-shims]
-> retrieved mirage-time.3.0.0, mirage-time-unix.3.0.0  (cached)
Processing 27/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [num.1.6: http] [cmdliner: make all] [mingw-w64-shims: sh mingw-w64-shims]
Processing 28/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [num.1.6: http] [ocaml-compiler-libs.v0.17.0: extract] [cmdliner: make all] [mingw-w64-shims: sh mingw-w64-shims]
Processing 28/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [num.1.6: extract] [ocaml-compiler-libs.v0.17.0: extract] [cmdliner: make all] [mingw-w64-shims: sh mingw-w64-shims]
-> retrieved ocaml-compiler-libs.v0.17.0  (cached)
Processing 28/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [num.1.6: extract] [cmdliner: make all] [mingw-w64-shims: sh mingw-w64-shims]
Processing 29/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [num.1.6: extract] [ocaml-syntax-shims.1.0.0: extract] [cmdliner: make all] [mingw-w64-shims: sh mingw-w64-shims]
-> retrieved num.1.6  (https://github.com/ocaml/num/archive/refs/tags/v1.6.tar.gz)
Processing 29/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [ocaml-syntax-shims.1.0.0: extract] [cmdliner: make all] [mingw-w64-shims: sh mingw-w64-shims]
Processing 30/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [ocaml-syntax-shims.1.0.0: extract] [ocaml_intrinsics_kernel.v0.17.1: extract] [cmdliner: make all] [mingw-w64-shims: sh mingw-w64-shims]
Processing 31/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [ocaml-syntax-shims.1.0.0: extract] [ocaml_intrinsics_kernel.v0.17.1: extract] [cmdliner: make all] [mingw-w64-shims: sh mingw-w64-shims] [num: make opam-modern]
-> retrieved ocaml-syntax-shims.1.0.0  (cached)
Processing 31/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [ocaml_intrinsics_kernel.v0.17.1: extract] [cmdliner: make all] [mingw-w64-shims: sh mingw-w64-shims] [num: make opam-modern]
Processing 32/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [ocaml_intrinsics_kernel.v0.17.1: extract] [ocamlbuild.0.16.1: extract] [cmdliner: make all] [mingw-w64-shims: sh mingw-w64-shims] [num: make opam-modern]
-> retrieved ocaml_intrinsics_kernel.v0.17.1  (cached)
Processing 32/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [ocamlbuild.0.16.1: extract] [cmdliner: make all] [mingw-w64-shims: sh mingw-w64-shims] [num: make opam-modern]
Processing 33/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [ocamlbuild.0.16.1: extract] [ocamlfind.1.9.8: extract] [cmdliner: make all] [mingw-w64-shims: sh mingw-w64-shims] [num: make opam-modern]
+ C:\cygwin64\bin\sh.exe "./gen_config.sh" "mingw-w64-shims" "i686-gcc-g++-false" "x86_64-binutils" "x86_64-gcc-core" "x86_64-gcc-g++-false" "pkgconf" (CWD=C:\Users\opam\AppData\Local\opam\5.3\.opam-switch\build\mingw-w64-shims.0.2.0)
-> compiled  mingw-w64-shims.0.2.0
Processing 33/135: [dune.3.19.1, dune-configurator.3.19.1: extract] [ocamlbuild.0.16.1: extract] [ocamlfind.1.9.8: extract] [cmdliner: make all] [num: make opam-modern]
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved ocamlfind.1.9.8  (cached)

#=== ERROR while installing mingw-w64-shims.0.2.0 =============================#
Cannot copy C:\Users\opam\AppData\Local\opam\5.3\.opam-switch\build\mingw-w64-shims.0.2.0\shim.exe to C:\Users\opam\AppData\Local\opam\5.3\bin\x86_64-w64-mingw32-gcc.exe (C:\cygwin64\bin\opam.exe: "open" failed on C:\Users\opam\AppData\Local\opam\5.3\bin\x86_64-w64-mingw32-gcc.exe: Permission denied).


<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions were aborted
| - fetch   ocamlbuild              0.16.1
| - fetch   ocamlfind               1.9.8
| - fetch   ocplib-endian           1.2
| - fetch   parsexp                 v0.17.0
| - fetch   ppx_derivers            1.2.1
| - fetch   ppx_sexp_conv           v0.17.1
| - fetch   ppxlib                  0.37.0~5.4preview
| - fetch   ppxlib_jane             v0.17.4
| - fetch   result                  1.5
| - fetch   rresult                 0.7.0
| - fetch   sexplib                 v0.17.0
| - fetch   sexplib0                v0.17.0
| - fetch   shared-block-ring       3.0.1
| - fetch   stdlib-shims            0.3.0
| - fetch   stringext               1.6.0
| - fetch   topkg                   1.1.0
| - fetch   uri                     4.4.0
| - install angstrom                0.16.1
| - install base                    v0.17.3
| - install base-bytes              base
| - install bigstringaf             0.10.0
| - install cppo                    1.8.0
| - install csexp                   1.5.2
| - install cstruct                 6.2.0
| - install cstruct-lwt             6.2.0
| - install duration                0.2.1
| - install fmt                     0.11.0
| - install io-page                 3.0.0
| - install logs                    0.9.0
| - install lwt                     6.0.0~alpha00
| - install lwt_log                 1.1.2
| - install mirage-block            3.0.2
| - install mirage-block-unix       2.14.2
| - install mirage-clock            4.2.0
| - install mirage-time             3.0.0
| - install mirage-time-unix        3.0.0
| - install ocaml-compiler-libs     v0.17.0
| - install ocaml-syntax-shims      1.0.0
| - install ocaml_intrinsics_kernel v0.17.1
| - install ocamlbuild              0.16.1
| - install ocamlfind               1.9.8
| - install ocplib-endian           1.2
| - install parsexp                 v0.17.0
| - install ppx_cstruct             6.2.0
| - install ppx_derivers            1.2.1
| - install ppx_sexp_conv           v0.17.1
| - install ppxlib                  0.37.0~5.4preview
| - install ppxlib_jane             v0.17.4
| - install result                  1.5
| - install rresult                 0.7.0
| - install sexplib                 v0.17.0
| - install sexplib0                v0.17.0
| - install shared-block-ring       3.0.1
| - install stdlib-shims            0.3.0
| - install stringext               1.6.0
| - install topkg                   1.1.0
| - install uri                     4.4.0
+- 
+- The following actions failed
| - fetch   dune.3.19.1, dune-configurator.3.19.1 
| - build   cmdliner                              1.3.0
| - build   num                                   1.6
| - install mingw-w64-shims                       0.2.0
+- 
+- The following changes have been performed (the rest was aborted)
| - remove  mingw-w64-shims 0.2.0
| - install conf-pkg-config 4
+- 
# To update the current shell environment, run: eval $(opam env)

The former state can be restored with:
    C:\cygwin64\bin\opam.exe switch import "C:\\Users\\opam\\AppData\\Local\\opam\\5.3\\.opam-switch\\backup\\state-20260101025931.export"
'C:\cygwin64\bin\opam.exe install -vy shared-block-ring.3.0.1' failed.
"opam remove -y shared-block-ring.3.0.1
opam install -vy shared-block-ring.3.0.1
res=$?
if [ $res = 31 ]; then
    if opam show -f x-ci-accept-failures: shared-block-ring.3.0.1 | grep -q 'windows-server-2022-amd64-ocaml-5.3'; 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 31
Failed: Build failed