2026-10-06 17:34.36: New job: build oseq.0.4.1 (0315bb6c5284)
2026-10-06 17:34.36: Waiting for resource in pool day11-builds
2026-10-06 17:42.52: Got resource from pool day11-builds
2026-10-06 17:42.52: [profile oxcaml-odoc-master] build oseq.0.4.1
2026-10-06 17:42.52: build oseq.0.4.1 (0315bb6c5284)
=== DEPENDENCIES (10 transitive) ===
  base-threads.base                                  464810371b96
  base-unix.base                                     4596d20d2cf7
  conf-autoconf.1                                    8ee1e3913008
  conf-which.1                                       65c43ca119c3
  dune.3.22.2+ox                                     9158bd0e098d
  ocaml.5.2.0                                        879ae859f814
  ocaml-config.3                                     37112a8040f8
  ocaml-variants.5.2.0+ox                            8119d9341417
  oxcaml-compiler.5.2.0minus39                       72925b65bf23
  seq.base                                           4e4fc87282b8
=== STDOUT ===
Processing: [default: loading data]
[oseq.0.4.1: dl]
[oseq.0.4.1: extract]
-> retrieved oseq.0.4.1  (https://opam.ocaml.org/cache)
[oseq: dune build]
+ /home/opam/.opam/default/bin/dune "build" "-p" "oseq" "-j" "39" (CWD=/home/opam/.opam/default/.opam-switch/build/oseq.0.4.1)
- (cd _build/default && /home/opam/.opam/default/bin/ocamlc.opt -w -40 -safe-string -warn-error -a+8 -g -bin-annot -bin-annot-occurrences -bin-annot-cms -I src/.oseq.objs/byte -I /home/opam/.opam/default/lib/seq -no-alias-deps -o src/.oseq.objs/byte/oSeq.cmi -c -intf src/OSeq.mli)
- File "src/OSeq.mli", lines 3-4, characters 8-33:
- 3 | ........module type of Seq
- 4 |   with type 'a node = 'a Seq.node
- Error: In this "with" constraint, the new definition of "node"
-        does not match its original definition in the constrained signature:
-        Type declarations do not match:
-          type 'a node = 'a Seq.node = Nil | Cons of 'a * 'a t
-        is not included in
-          type ('a : value_or_null) node =
-            'a Seq.node =
-              Nil
-            | Cons of 'a * 'a t
-        The problem is in the kinds of a parameter:
-        The layout of 'a is value_or_null.
-        But the layout of 'a must be a sublayout of value
-          because it instantiates an unannotated type parameter of node,
-          chosen to have layout value.
-        File "seq.mli", lines 102-104, characters 0-21: Expected declaration
-        File "src/OSeq.mli", line 4, characters 7-33: Actual declaration
build failed... 
[ERROR] The compilation of oseq.0.4.1 failed at "dune build -p oseq -j 39".

=== STDERR ===

2026-10-06 17:42.57: FAILED: build oseq.0.4.1
2026-10-06 17:42.57: Job failed: build failed: oseq.0.4.1