debian-13-4.14+flambda_opam-2.5

2026-04-03 11:35.30: New job: test backtracking/bitv https://github.com/backtracking/bitv.git#refs/heads/persistent-bit-vectors (459b76d4286b3fd31297aa41766da2762554a426) (linux-x86_64:debian-13-4.14+flambda_opam-2.5)
Base: ocaml/opam:debian-13-ocaml-4.14-flambda@sha256:850943c645431e59dd4eb923682deed0ccf9ed0c7a0e8185ae2f5a75e20d5024
Opam project build

To reproduce locally:

git clone --recursive "https://github.com/backtracking/bitv.git" -b "persistent-bit-vectors" && cd "bitv" && git reset --hard 459b76d4
cat > Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.14-flambda@sha256:850943c645431e59dd4eb923682deed0ccf9ed0c7a0e8185ae2f5a75e20d5024
# debian-13-4.14+flambda_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 d06cfb1853afceb1dc127f88edaac3f8110bf6cc || git fetch origin master) && git reset -q --hard d06cfb1853afceb1dc127f88edaac3f8110bf6cc && git log --no-decorate -n1 --oneline && opam update -u
COPY --chown=1000:1000 bitv.opam ./
RUN opam pin add -yn bitv.dev './'
RUN echo '(lang dune 3.0)' > './dune-project'
ENV DEPS="base-bigarray.base base-threads.base base-unix.base dune.3.22.1 ocaml.4.14.2 ocaml-config.2 ocaml-variants.4.14.2+options"
ENV CI="true"
ENV OCAMLCI="true"
RUN opam update --depexts && opam install --cli=2.5 --depext-only -y bitv.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

2026-04-03 11:35.30: Using cache hint "backtracking/bitv-ocaml/opam:debian-13-ocaml-4.14-flambda@sha256:850943c645431e59dd4eb923682deed0ccf9ed0c7a0e8185ae2f5a75e20d5024-debian-13-4.14+flambda_opam-2.5-07ed70b41c89e28fcb4914f024e2c479"
2026-04-03 11:35.30: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.14-flambda@sha256:850943c645431e59dd4eb923682deed0ccf9ed0c7a0e8185ae2f5a75e20d5024)
 (comment debian-13-4.14+flambda_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 d06cfb1853afceb1dc127f88edaac3f8110bf6cc || git fetch origin master) && git reset -q --hard d06cfb1853afceb1dc127f88edaac3f8110bf6cc && git log --no-decorate -n1 --oneline && opam update -u"))
 (copy (src bitv.opam) (dst ./))
 (run (network host)
      (shell "opam pin add -yn bitv.dev './'"))
 (run (shell "echo '(lang dune 3.0)' > './dune-project'"))
 (env DEPS "base-bigarray.base base-threads.base base-unix.base dune.3.22.1 ocaml.4.14.2 ocaml-config.2 ocaml-variants.4.14.2+options")
 (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 bitv.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"))
)

2026-04-03 11:35.30: Waiting for resource in pool OCluster
2026-04-03 11:41.12: Waiting for worker…
2026-04-03 11:43.23: Got resource from pool OCluster
Building on laodoke.caelum.ci.dev
All commits already cached
HEAD is now at 459b76d sets over a given universe

(from ocaml/opam:debian-13-ocaml-4.14-flambda@sha256:850943c645431e59dd4eb923682deed0ccf9ed0c7a0e8185ae2f5a75e20d5024)
2026-04-03 11:43.24 ---> using "41bb500b3da064b5e6b574ace6ef3b37c3265c5cd17110ed5b389cfc4a3ddcf6" from cache

/: (comment debian-13-4.14+flambda_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"))
2026-04-03 11:43.24 ---> using "4e7506ccd24fbb0a775d0bd5334e8aaeda992917123ce3cdeeb76ad82b5b270e" 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
Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2026-04-03 11:43.24 ---> using "d86544469f80f0de95313c7ed4a4e69f1d3f5c53f6d097a2164d1a2f6772f0eb" from cache

/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Linux 6.8.0-106-generic
The OCaml toplevel, version 4.14.2
2.5.0
2026-04-03 11:43.24 ---> using "5b84e48c94b1f5072f3fcfa4069d4701e77121e50f2a5f18079e2a28b9d5af43" from cache

/src: (workdir /src)

/src: (run (shell "sudo chown opam /src"))
2026-04-03 11:43.24 ---> using "5eb7c30af6bfe33176fe69462b27df6b126910791a11f405965e62fa25c8f287" from cache

/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
           (network host)
           (shell "cd ~/opam-repository && (git cat-file -e d06cfb1853afceb1dc127f88edaac3f8110bf6cc || git fetch origin master) && git reset -q --hard d06cfb1853afceb1dc127f88edaac3f8110bf6cc && git log --no-decorate -n1 --oneline && opam update -u"))
From https://github.com/ocaml/opam-repository
 * branch                  master     -> FETCH_HEAD
   ffb54b9bdd..d06cfb1853  master     -> origin/master
d06cfb1853 Merge pull request #29632 from shonfeder/release-dune-3.22.1

<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>
[default] synchronised from git+file:///home/opam/opam-repository

Everything as up-to-date as possible (run with --verbose to show unavailable upgrades).
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)
2026-04-03 11:43.24 ---> using "d79fe874b5ba1fd135e6c9987b1f3b1b34aea17601e16fdc412520b7f326b017" from cache

/src: (copy (src bitv.opam) (dst ./))
2026-04-03 11:43.24 ---> saved as "bf13cb6871b0a799bb4a20a5352a857ad0474020a4e8d01c1a4b85d1ccd9f9be"

/src: (run (network host)
           (shell "opam pin add -yn bitv.dev './'"))
[bitv.dev] synchronised (file:///src)
bitv is now pinned to file:///src (version dev)
2026-04-03 11:43.27 ---> saved as "caadec5da0d0267d243987296d4fcfba3233f9c36f5d389c593e6004dd564633"

/src: (run (shell "echo '(lang dune 3.0)' > './dune-project'"))
2026-04-03 11:43.28 ---> saved as "3e993d3c43afd86254a4cf528e11cf73a324276347c5d11cf57a0c0ab32fddb6"

/src: (env DEPS "base-bigarray.base base-threads.base base-unix.base dune.3.22.1 ocaml.4.14.2 ocaml-config.2 ocaml-variants.4.14.2+options")

/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 bitv.dev $DEPS"))
+ /usr/bin/sudo "apt-get" "update"
- Get:1 http://deb.debian.org/debian trixie InRelease [140 kB]
- Get:2 http://deb.debian.org/debian trixie-updates InRelease [47.3 kB]
- Get:3 http://deb.debian.org/debian-security trixie-security InRelease [43.4 kB]
- Get:4 http://deb.debian.org/debian trixie/main amd64 Packages [9671 kB]
- Get:5 http://deb.debian.org/debian-security trixie-security/main amd64 Packages [119 kB]
- Fetched 10.0 MB in 3s (3037 kB/s)
- Reading package lists...
- 

<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>
[bitv.dev] synchronised (file:///src)

[NOTE] Package ocaml-variants is already installed (current version is 4.14.2+options).
[NOTE] Package ocaml-config is already installed (current version is 2).
[NOTE] Package ocaml is already installed (current version is 4.14.2).
[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-bigarray is already installed (current version is base).
# To update the current shell environment, run: eval $(opam env)
2026-04-03 11:43.53 ---> saved as "1d79e6d446e24e7de2205ab7229cae43264432221e21686d0723397fd25f7ccc"

/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
           (network host)
           (shell "opam install $DEPS"))
[NOTE] Package ocaml-variants is already installed (current version is 4.14.2+options).
[NOTE] Package ocaml-config is already installed (current version is 2).
[NOTE] Package ocaml is already installed (current version is 4.14.2).
[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-bigarray is already installed (current version is base).
The following actions will be performed:
=== install 1 package
  - install dune 3.22.1

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved dune.3.22.1  (cached)
-> installed dune.3.22.1
Done.
# To update the current shell environment, run: eval $(opam env)
2026-04-03 11:45.46 ---> saved as "dd3fff67005f1f84bc5e28d25ad783fdf2fba300b5ebc99770c1a2eb01035e95"

/src: (copy (src .) (dst /src))
2026-04-03 11:45.47 ---> saved as "4f1c594c69fbbd47c596d42339749f4bdfb3482c7e26062d14f2c30dfe86a7d4"

/src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))
(cd _build/default && /home/opam/.opam/4.14/bin/ocamlc.opt -w @1..3@5..28@30..39@43@46..47@49..57@61..62-40 -strict-sequence -strict-formats -short-paths -keep-locs -w -32 -g -bin-annot -I .test_pbv.eobjs/byte -I .bitv.objs/byte -no-alias-deps -opaque -o .test_pbv.eobjs/byte/dune__exe__Test_pbv.cmo -c -impl test_pbv.ml)
File "test_pbv.ml", lines 149-152, characters 13-4:
149 | .............Make(struct
150 |   include String
151 |   let print = Format.pp_print_string
152 | end)
Error: Modules do not match:
       sig
         type t = string
         val make : int -> char -> t
         val init : int -> (int -> char) -> t
         val empty : t
         val of_bytes : bytes -> t
         val to_bytes : t -> bytes
         external length : t -> int = "%string_length"
         external get : t -> int -> char = "%string_safe_get"
         val concat : t -> t list -> t
         val cat : t -> t -> t
         val equal : t -> t -> bool
         val compare : t -> t -> int
         val starts_with : prefix:t -> t -> bool
         val ends_with : suffix:t -> t -> bool
         val contains_from : t -> int -> char -> bool
         val rcontains_from : t -> int -> char -> bool
         val contains : t -> char -> bool
         val sub : t -> int -> int -> t
         val split_on_char : char -> t -> t list
         val map : (char -> char) -> t -> t
         val mapi : (int -> char -> char) -> t -> t
         val fold_left : ('a -> char -> 'a) -> 'a -> t -> 'a
         val fold_right : (char -> 'a -> 'a) -> t -> 'a -> 'a
         val for_all : (char -> bool) -> t -> bool
         val exists : (char -> bool) -> t -> bool
         val trim : t -> t
         val escaped : t -> t
         val uppercase_ascii : t -> t
         val lowercase_ascii : t -> t
         val capitalize_ascii : t -> t
         val uncapitalize_ascii : t -> t
         val iter : (char -> unit) -> t -> unit
         val iteri : (int -> char -> unit) -> t -> unit
         val index_from : t -> int -> char -> int
         val index_from_opt : t -> int -> char -> int option
         val rindex_from : t -> int -> char -> int
         val rindex_from_opt : t -> int -> char -> int option
         val index : t -> char -> int
         val index_opt : t -> char -> int option
         val rindex : t -> char -> int
         val rindex_opt : t -> char -> int option
         val to_seq : t -> char Seq.t
         val to_seqi : t -> (int * char) Seq.t
         val of_seq : char Seq.t -> t
         val get_utf_8_uchar : t -> int -> Uchar.utf_decode
         val is_valid_utf_8 : t -> bool
         val get_utf_16be_uchar : t -> int -> Uchar.utf_decode
         val is_valid_utf_16be : t -> bool
         val get_utf_16le_uchar : t -> int -> Uchar.utf_decode
         val is_valid_utf_16le : t -> bool
         external create : int -> bytes = "caml_create_string"
         external set : bytes -> int -> char -> unit = "%string_safe_set"
         val blit : t -> int -> bytes -> int -> int -> unit
         val copy : t -> t
         val fill : bytes -> int -> int -> char -> unit
         val uppercase : t -> t
         val lowercase : t -> t
         val capitalize : t -> t
         val uncapitalize : t -> t
         val get_uint8 : t -> int -> int
         val get_int8 : t -> int -> int
         val get_uint16_ne : t -> int -> int
         val get_uint16_be : t -> int -> int
         val get_uint16_le : t -> int -> int
         val get_int16_ne : t -> int -> int
         val get_int16_be : t -> int -> int
         val get_int16_le : t -> int -> int
         val get_int32_ne : t -> int -> int32
         val get_int32_be : t -> int -> int32
         val get_int32_le : t -> int -> int32
         val get_int64_ne : t -> int -> int64
         val get_int64_be : t -> int -> int64
         val get_int64_le : t -> int -> int64
         external unsafe_get : t -> int -> char = "%string_unsafe_get"
         external unsafe_set : bytes -> int -> char -> unit
           = "%string_unsafe_set"
         external unsafe_blit : t -> int -> bytes -> int -> int -> unit
           = "caml_blit_string" [@@noalloc]
         external unsafe_fill : bytes -> int -> int -> char -> unit
           = "caml_fill_string" [@@noalloc]
         val print : Format.formatter -> t -> unit
       end
     is not included in Bitv__Pbv.UNIVERSE
     The value `hash' is required but not provided
     File "pbv.mli", line 141, characters 2-20: Expected declaration
"/usr/bin/env" "bash" "-c" "opam exec -- dune build @install @check @runtest && rm -rf _build" failed with exit status 1
2026-04-03 11:45.48: Job failed: Failed: Build failed