2026-06-16 14:10.21: New job: build jupyter.2.7.4 (88c2df2e0174)
2026-06-16 14:10.21: Waiting for resource in pool day11-builds
2026-06-16 15:54.47: Got resource from pool day11-builds
2026-06-16 15:54.47: [profile full] build jupyter.2.7.4
2026-06-16 15:54.47: build jupyter.2.7.4 (88c2df2e0174)
=== DEPENDENCIES (37 transitive) ===
  base-bytes.base                                    9e3796bcb03e
  base-threads.base                                  b7164ff76afe
  base-unix.base                                     839dc585f12d
  base64.3.5.2                                       128a407835fe
  conf-gmp.5                                         61e3c79e0ddf
  conf-gmp-powm-sec.4                                ceb17ad6499b
  conf-pkg-config.5                                  64c6b37d622b
  conf-zlib.1                                        6a8e9cb470aa
  conf-zmq.0.1                                       97a5bda52bbb
  cppo.1.8.0                                         4982184c4300
  cryptokit.1.20                                     1ad62dfaf123
  csexp.1.5.2                                        be052fa6b82c
  dune.3.22.2                                        ad6d28ec9960
  dune-configurator.3.22.2                           43df73c35f4a
  logs.0.8.0                                         ed26a8423043
  lwt.5.10.0                                         fdc3f7732e0d
  lwt_ppx.5.9.3                                      b7933dd5cd0a
  ocaml.4.12.1                                       b220906b3826
  ocaml-base-compiler.4.12.1                         ce8680725b32
  ocaml-compiler-libs.v0.12.4                        1f632f5c17e6
  ocaml-config.2                                     3a99bd9dbb34
  ocamlbuild.0.16.1                                  0aed2948eb5f
  ocamlfind.1.9.8                                    9ccba9f3d58c
  ocplib-endian.1.2                                  d76cda184775
  ppx_derivers.1.2.1                                 2503a1855649
  ppx_deriving.6.1.1                                 6f19ce805ea3
  ppx_deriving_yojson.3.10.0                         58985a503bfe
  ppxlib.0.38.0                                      e36cceabe583
  sexplib0.v0.16.0                                   73a948a1e4db
  stdint.0.7.2                                       9c07e08773f8
  stdlib-shims.0.3.0                                 d498c78422d2
  topkg.1.1.1                                        7b16f58d847f
  uuidm.0.9.8                                        7d83a507edea
  yojson.3.0.0                                       2782225521b9
  zarith.1.14                                        98b70de7ec54
  zmq.5.3.0                                          87b9a9a196e1
  zmq-lwt.5.3.0                                      ce7e5b46e21c
=== STDOUT ===
Processing: [default: loading data]
[jupyter.2.7.4: dl]
[jupyter.2.7.4: extract]
-> retrieved jupyter.2.7.4  (https://opam.ocaml.org/cache)
[jupyter: dune build]
+ /home/opam/.opam/default/bin/dune "build" "-p" "jupyter" "-j" "39" (CWD=/home/opam/.opam/default/.opam-switch/build/jupyter.2.7.4)
- (cd _build/default && /home/opam/.opam/default/bin/ocamlc.opt -ppx '/home/opam/.opam/default/lib/lwt_ppx/./ppx.exe --as-ppx' -ppx '/home/opam/.opam/default/lib/ppx_deriving/./ppx_deriving package:ppx_deriving_yojson' -short-paths -safe-string -strict-sequence -strict-formats -w A-4-31-33-34-39-41-42-43-44-45-48-49-50-58 -g -bin-annot -I jupyter/src/core/.jupyter.objs/byte -I /home/opam/.opam/default/lib/bytes -I /home/opam/.opam/default/lib/ppx_deriving/runtime -I /home/opam/.opam/default/lib/ppx_deriving_yojson/runtime -I /home/opam/.opam/default/lib/uuidm -I /home/opam/.opam/default/lib/yojson -no-alias-deps -open Jupyter__ -o jupyter/src/core/.jupyter.objs/byte/jupyter__Json.cmi -c -intf jupyter/src/core/json.pp.mli)
- File "jupyter/src/core/json.mli", line 25, characters 27-40:
- 25 | val or_none : ('a, string) Result.result -> 'a option
-                                 ^^^^^^^^^^^^^
- Error: Unbound type constructor Result.result
[ERROR] The compilation of jupyter.2.7.4 failed at "dune build -p jupyter -j 39".
build failed... 

=== STDERR ===

2026-06-16 15:55.09: FAILED: build jupyter.2.7.4
2026-06-16 15:55.09: Job failed: build failed: jupyter.2.7.4