2026-04-03 11:35.30: New job: test backtracking/bitv https://github.com/backtracking/bitv.git#refs/heads/persistent-bit-vectors (459b76d4286b3fd31297aa41766da2762554a426) (linux-arm64:debian-13-4.14_arm32_opam-2.5) Base: ocaml/opam:debian-13-ocaml-4.14@sha256:240308a5d75926948dbd1ab448e6f5b34c6a57e65a302c58d266a8b73278c8ee 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@sha256:240308a5d75926948dbd1ab448e6f5b34c6a57e65a302c58d266a8b73278c8ee # debian-13-4.14_arm32_opam-2.5 USER 1000:1000 SHELL [ "/usr/bin/linux32", "/bin/sh", "-c" ] 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-base-compiler.4.14.2 ocaml-config.2 ocaml-options-vanilla.1" 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@sha256:240308a5d75926948dbd1ab448e6f5b34c6a57e65a302c58d266a8b73278c8ee-debian-13-4.14_arm32_opam-2.5-fa30f036ab67ee4b487207bc0d6e12de" 2026-04-03 11:35.30: Using OBuilder spec: ((from ocaml/opam:debian-13-ocaml-4.14@sha256:240308a5d75926948dbd1ab448e6f5b34c6a57e65a302c58d266a8b73278c8ee) (comment debian-13-4.14_arm32_opam-2.5) (user (uid 1000) (gid 1000)) (shell /usr/bin/linux32 /bin/sh -c) (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-base-compiler.4.14.2 ocaml-config.2 ocaml-options-vanilla.1") (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 11:35.30: Waiting for worker… 2026-04-03 11:47.04: Got resource from pool OCluster Building on molpadia.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@sha256:240308a5d75926948dbd1ab448e6f5b34c6a57e65a302c58d266a8b73278c8ee) Unable to find image 'ocaml/opam:debian-13-ocaml-4.14@sha256:240308a5d75926948dbd1ab448e6f5b34c6a57e65a302c58d266a8b73278c8ee' locally docker.io/ocaml/opam@sha256:240308a5d75926948dbd1ab448e6f5b34c6a57e65a302c58d266a8b73278c8ee: Pulling from ocaml/opam e7e4c87ce695: Already exists 098244b1fe4f: Already exists 94a818ec2cdc: Already exists 29e77b813c7f: Already exists b9dc986333a7: Already exists 023a3b8ea315: Already exists 2684ea5ea2fe: Already exists 93c319c970b2: Already exists 03f63d243d48: Already exists 237874024f5b: Already exists 954f264158bf: Already exists 85f6eb6723bd: Already exists 2882e9da3bb0: Already exists 4aabbd87a4c4: Already exists 4f386ee1e947: Already exists 76eac5355b1e: Already exists 7732af2249d2: Already exists 0864fc6233a3: Already exists 74a602ddff51: Already exists eff8656d1a08: Already exists 480ead97e7de: Already exists 71d9c83b5938: Already exists 4f4fb700ef54: Already exists 46ffbb314b18: Already exists 9ad678cce639: Already exists cee0ad8655f3: Already exists d7a6444c98ec: Already exists fb7ac70d48b8: Already exists 9e9d8c0fc63b: Already exists 4fd15bd8b00c: Already exists cfb25ffd51ce: Already exists a1d4a67b1423: Already exists b5f05950c5d7: Already exists ffaeb3c9d76d: Already exists 4c3b6722757e: Already exists 0f58a95c7a9b: Already exists c3e40142c411: Already exists 7f8475cb6605: Already exists 05a50efaf303: Already exists 6b01dec062a8: Already exists 9fd1e9989233: Already exists 433ff276b12f: Pulling fs layer efd9b50fadc4: Pulling fs layer d1391430121a: Pulling fs layer f656d97c5aae: Pulling fs layer f656d97c5aae: Waiting efd9b50fadc4: Download complete d1391430121a: Download complete f656d97c5aae: Verifying Checksum f656d97c5aae: Download complete 433ff276b12f: Verifying Checksum 433ff276b12f: Download complete 433ff276b12f: Pull complete efd9b50fadc4: Pull complete d1391430121a: Pull complete f656d97c5aae: Pull complete Digest: sha256:240308a5d75926948dbd1ab448e6f5b34c6a57e65a302c58d266a8b73278c8ee Status: Downloaded newer image for ocaml/opam@sha256:240308a5d75926948dbd1ab448e6f5b34c6a57e65a302c58d266a8b73278c8ee 2026-04-03 11:47.04 ---> using "877ed5cf0a98c815bb2e7ba009eecea1fd1a0ff506ee70a6bbbdb6e441d64adc" from cache /: (comment debian-13-4.14_arm32_opam-2.5) /: (user (uid 1000) (gid 1000)) /: (shell /usr/bin/linux32 /bin/sh -c) /: (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 11:47.04 ---> using "80364e7ea3205efd59b6cbc366965d6fdeadf26970763d3042667a502d2bbf01" 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 11:47.04 ---> using "52062abc9754f2f7adbcdae53513e4f1235a1be0e687b9206e441a5dd0e48602" from cache /src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version")) Linux 6.8.0-90-generic The OCaml toplevel, version 4.14.2 2.5.0 2026-04-03 11:47.04 ---> using "fa12169a33bbc70a6fa9176fcc7359a2140c5372c9c0bec86cfe85c767ebe583" from cache /src: (workdir /src) /src: (run (shell "sudo chown opam /src")) 2026-04-03 11:47.04 ---> using "714c205c6aa9a3a01f77892c73cd70f2e82e79a2d5dd8150eb0263fd0a8a8c7f" 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 11:47.04 ---> using "f157fc357df2b8e0cb7b460e279162a775424d0c0ad911c9895a82f5aec92f7a" from cache /src: (copy (src bitv.opam) (dst ./)) 2026-04-03 11:47.04 ---> saved as "f68cc330906f0cfef39d928bf84e1628fb1f18587d42da3ae1669d3afae74adb" /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 11:47.06 ---> saved as "135984b9df192135e5c33e22dc002b82c0b1b631409171a409c31e49a0d25f3c" /src: (run (shell "echo '(lang dune 3.0)' > './dune-project'")) 2026-04-03 11:47.06 ---> saved as "722dd93834350736c537f3d9bd34c99750d4a0d56dfdacfc42f19deebd1abcc7" /src: (env DEPS "base-bigarray.base base-threads.base base-unix.base dune.3.22.1 ocaml.4.14.2 ocaml-base-compiler.4.14.2 ocaml-config.2 ocaml-options-vanilla.1") /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 armhf Packages [9237 kB] - Get:5 http://deb.debian.org/debian-security trixie-security/main armhf Packages [114 kB] - Fetched 9582 kB in 45s (213 kB/s) - Reading package lists... <><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><> [bitv.dev] synchronised (file:///src) [NOTE] Package ocaml-options-vanilla is already installed (current version is 1). [NOTE] Package ocaml-config is already installed (current version is 2). [NOTE] Package ocaml-base-compiler is already installed (current version is 4.14.2). [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 11:48.03 ---> saved as "d7adb6e688c3c8b6f72f0c68f0f75e9be4a7eba216cf0f10177d6db1b4c229a7" /src: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "opam install $DEPS")) [NOTE] Package ocaml-options-vanilla is already installed (current version is 1). [NOTE] Package ocaml-config is already installed (current version is 2). [NOTE] Package ocaml-base-compiler is already installed (current version is 4.14.2). [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 11:48.54 ---> saved as "a21de71c2b7e8db21ba4afe412a44faa66e2647023f6452a7ffe88a780a46dc8" /src: (copy (src .) (dst /src)) 2026-04-03 11:48.54 ---> saved as "4f86d645a0f23c8813c2274178cbac24cc4a9ca0bdc91059f1a08d1ca5d8ad89" /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 (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 .bitv.objs/byte -intf-suffix .ml -no-alias-deps -opaque -open Bitv__ -o .bitv.objs/byte/bitv__Pbv.cmo -c -impl pbv.ml) File "pbv.ml", line 508, characters 22-33: 508 | let bits x = x land 0xFFFF_FFFF ^^^^^^^^^^^ Error: Integer literal exceeds the range of representable integers of type int (cd _build/default && /home/opam/.opam/4.14/bin/ocamlopt.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 -I .bitv.objs/byte -I .bitv.objs/native -intf-suffix .ml -no-alias-deps -opaque -open Bitv__ -o .bitv.objs/native/bitv__Pbv.cmx -c -impl pbv.ml) File "pbv.ml", line 508, characters 22-33: 508 | let bits x = x land 0xFFFF_FFFF ^^^^^^^^^^^ Error: Integer literal exceeds the range of representable integers of type int "/usr/bin/linux32" "/bin/sh" "-c" "opam exec -- dune build @install @check @runtest && rm -rf _build" failed with exit status 1 2026-04-03 11:48.55: Job failed: Failed: Build failed