Build:
  1. 0
2026-07-23 19:39.27: New job: build vhd-format.0.12.0 (42814ec2cf1a)
2026-07-23 19:39.27: Waiting for resource in pool day11-builds
2026-07-23 20:25.43: Got resource from pool day11-builds
2026-07-23 20:25.43: [profile full] build vhd-format.0.12.0
2026-07-23 20:25.43: build vhd-format.0.12.0 (42814ec2cf1a)
=== DEPENDENCIES (29 transitive) ===
  base.v0.15.2                                       e10fcea238bc
  base-threads.base                                  afe16a8e71c3
  base-unix.base                                     73c0a5fdd34a
  conf-pkg-config.5                                  2c611009363a
  csexp.1.5.2                                        2950daf4914a
  cstruct.6.2.0                                      b999b7929efe
  dune.3.24.1                                        0a92e2592b32
  dune-configurator.3.22.2                           bfd73dfd964b
  fmt.0.11.0                                         536c8b8c99bc
  io-page.3.0.0                                      7e31c0f90a5e
  num.1.6                                            8eed150659f2
  ocaml.4.12.1                                       2e208a8b534b
  ocaml-base-compiler.4.12.1                         59bab1e31391
  ocaml-compiler-libs.v0.12.4                        c737e2ba3de8
  ocaml-config.2                                     3bbb540b53a1
  ocaml-secondary-compiler.4.14.2                    576aeb230977
  ocamlbuild.0.16.1                                  b795277b77b8
  ocamlfind.1.9.6                                    b41952648e60
  ocamlfind-secondary.1.9.6                          fa694827f6f0
  parsexp.v0.15.0                                    9b05166f6dfb
  ppx_cstruct.6.2.0                                  72ce9e97c9a8
  ppx_derivers.1.2.1                                 726f0f4f2437
  ppxlib.0.38.0                                      45abc7e21790
  rresult.0.7.0                                      967be48c1766
  sexplib.v0.15.1                                    bfe67f26224c
  sexplib0.v0.15.1                                   306008fed579
  stdlib-shims.0.3.0                                 40cf490670d4
  topkg.1.1.1                                        52e967aad5ef
  uuidm.0.9.8                                        56242b6a51ff
=== STDOUT ===
Processing: [default: loading data]
[vhd-format.0.12.0: dl]
[vhd-format.0.12.0: extract]
-> retrieved vhd-format.0.12.0  (https://opam.ocaml.org/cache)
[vhd-format: dune build]
+ /home/opam/.opam/default/bin/dune "build" "-p" "vhd-format" "-j" "39" (CWD=/home/opam/.opam/default/.opam-switch/build/vhd-format.0.12.0)
- (cd _build/default && /home/opam/.opam/default/bin/ocamlc.opt -w -40 -w -32-34-37 -g -bin-annot -I vhd_format/.vhd_format.objs/byte -I /home/opam/.opam/default/lib/bytes -I /home/opam/.opam/default/lib/cstruct -I /home/opam/.opam/default/lib/io-page -I /home/opam/.opam/default/lib/rresult -I /home/opam/.opam/default/lib/uuidm -intf-suffix .ml -no-alias-deps -open Vhd_format -o vhd_format/.vhd_format.objs/byte/vhd_format__Element.cmo -c -impl vhd_format/element.pp.ml)
- File "vhd_format/element.ml", line 30, characters 7-18:
- 30 |     if Cstruct.len x = sector_size
-             ^^^^^^^^^^^
- Error: Unbound value Cstruct.len
- Hint: Did you mean lenv?
- (cd _build/default && /home/opam/.opam/default/bin/ocamlopt.opt -w -40 -w -32-34-37 -g -I vhd_format/.vhd_format.objs/byte -I vhd_format/.vhd_format.objs/native -I /home/opam/.opam/default/lib/bytes -I /home/opam/.opam/default/lib/cstruct -I /home/opam/.opam/default/lib/io-page -I /home/opam/.opam/default/lib/rresult -I /home/opam/.opam/default/lib/uuidm -intf-suffix .ml -no-alias-deps -open Vhd_format -o vhd_format/.vhd_format.objs/native/vhd_format__Element.cmx -c -impl vhd_format/element.pp.ml)
- File "vhd_format/element.ml", line 30, characters 7-18:
- 30 |     if Cstruct.len x = sector_size
-             ^^^^^^^^^^^
- Error: Unbound value Cstruct.len
- Hint: Did you mean lenv?
- (cd _build/default && /home/opam/.opam/default/bin/ocamlc.opt -w -40 -w -32-34-37 -g -bin-annot -I vhd_format/.vhd_format.objs/byte -I /home/opam/.opam/default/lib/bytes -I /home/opam/.opam/default/lib/cstruct -I /home/opam/.opam/default/lib/io-page -I /home/opam/.opam/default/lib/rresult -I /home/opam/.opam/default/lib/uuidm -intf-suffix .ml -no-alias-deps -open Vhd_format -o vhd_format/.vhd_format.objs/byte/vhd_format__F.cmo -c -impl vhd_format/f.pp.ml)
- File "vhd_format/f.ml", line 26, characters 19-30:
- 26 |       for i = 0 to Cstruct.len a - 1 do
-                         ^^^^^^^^^^^
- Error: Unbound value Cstruct.len
- Hint: Did you mean lenv?
[ERROR] The compilation of vhd-format.0.12.0 failed at "dune build -p vhd-format -j 39".
build failed... 

=== STDERR ===

2026-07-23 20:26.18: FAILED: build vhd-format.0.12.0
2026-07-23 20:26.18: Job failed: build failed: vhd-format.0.12.0