Build:
  1. 0
2026-06-19 19:51.51: New job: build mirage-channel.4.0.1 (d798e5fba6b8)
2026-06-19 19:51.51: Waiting for resource in pool day11-builds
2026-06-19 20:12.29: Got resource from pool day11-builds
2026-06-19 20:12.29: [profile full] build mirage-channel.4.0.1
2026-06-19 20:12.29: build mirage-channel.4.0.1 (d798e5fba6b8)
=== DEPENDENCIES (20 transitive) ===
  base-bytes.base                                    38023b842165
  base-threads.base                                  b7164ff76afe
  base-unix.base                                     839dc585f12d
  bigarray-compat.1.1.0                              f132a29a396b
  cppo.1.8.0                                         58ff60202126
  csexp.1.5.2                                        6a11fd34e537
  cstruct.6.0.1                                      255c06436eb1
  dune.3.23.1                                        b9e31df96092
  dune-configurator.3.23.1                           cdae849f232e
  fmt.0.11.0                                         ff83722f4864
  logs.0.10.0                                        d616bbe50f5c
  lwt.6.1.2                                          f9825635bd29
  mirage-flow.5.0.0                                  182c7568e76a
  ocaml.5.5.0                                        7bdffd2f55d9
  ocaml-base-compiler.5.5.0                          88ac983b1a28
  ocaml-compiler.5.5.0                               8d77bbea3746
  ocamlbuild.0.16.1                                  b61d8be21b8c
  ocamlfind.1.9.8                                    1872268d1aec
  ocplib-endian.1.2                                  2e63c292ed3b
  topkg.1.1.1                                        ecfbf436618b
=== STDOUT ===
Processing: [default: loading data]
[mirage-channel.4.0.1: dl]
[mirage-channel.4.0.1: extract]
-> retrieved mirage-channel.4.0.1  (https://opam.ocaml.org/cache)
[mirage-channel: dune build]
+ /home/opam/.opam/default/bin/dune "build" "-p" "mirage-channel" "-j" "39" (CWD=/home/opam/.opam/default/.opam-switch/build/mirage-channel.4.0.1)
- (cd _build/default && /home/opam/.opam/default/bin/ocamlc.opt -w -40 -g -bin-annot -bin-annot-occurrences -I src/.mirage_channel.objs/byte -I /home/opam/.opam/default/lib/bigarray-compat -I /home/opam/.opam/default/lib/cstruct -I /home/opam/.opam/default/lib/fmt -I /home/opam/.opam/default/lib/logs -I /home/opam/.opam/default/lib/lwt -I /home/opam/.opam/default/lib/mirage-flow -cmi-file src/.mirage_channel.objs/byte/mirage_channel.cmi -no-alias-deps -o src/.mirage_channel.objs/byte/mirage_channel.cmo -c -impl src/mirage_channel.ml)
- File "src/mirage_channel.ml", line 80, characters 26-37:
- 80 |     | Ok (`Data buf) when Cstruct.len buf = 0 ->
-                                ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "src/mirage_channel.ml", line 100, characters 20-31:
- 100 |     | Some buf when Cstruct.len buf = 0 -> ibuf_refill t >>=~ fun _ -> get_ibuf t
-                           ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "src/mirage_channel.ml", line 117, characters 16-27:
- 117 |     let avail = Cstruct.len buf in
-                       ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "src/mirage_channel.ml", line 136, characters 37-48:
- 136 |         loop (buffer :: acc) (len - (Cstruct.len buffer)) in
-                                            ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "src/mirage_channel.ml", line 142, characters 14-25:
- 142 |     let len = Cstruct.len buf in
-                     ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "src/mirage_channel.ml", line 164, characters 33-44:
- 164 |       | Ok (`Not_found buf) when Cstruct.len buf = 0 -> Lwt.return (Ok (`Data acc))
-                                        ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "src/mirage_channel.ml", line 168, characters 23-34:
- 168 |           let buflen = Cstruct.len buf in
-                              ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "src/mirage_channel.ml", line 190, characters 19-30:
- 190 |     |Some buf when Cstruct.len buf = t.opos -> (* obuf is full *)
-                          ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "src/mirage_channel.ml", line 205, characters 19-30:
- 205 |     |Some buf when Cstruct.len buf = t.opos -> queue_obuf t; alloc_obuf t
-                          ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "src/mirage_channel.ml", line 223, characters 16-27:
- 223 |     let avail = Cstruct.len buf - t.opos in
-                       ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- (cd _build/default && /home/opam/.opam/default/bin/ocamlopt.opt -w -40 -g -I src/.mirage_channel.objs/byte -I src/.mirage_channel.objs/native -I /home/opam/.opam/default/lib/bigarray-compat -I /home/opam/.opam/default/lib/cstruct -I /home/opam/.opam/default/lib/fmt -I /home/opam/.opam/default/lib/logs -I /home/opam/.opam/default/lib/lwt -I /home/opam/.opam/default/lib/mirage-flow -cmi-file src/.mirage_channel.objs/byte/mirage_channel.cmi -no-alias-deps -o src/.mirage_channel.objs/native/mirage_channel.cmx -c -impl src/mirage_channel.ml)
- File "src/mirage_channel.ml", line 80, characters 26-37:
- 80 |     | Ok (`Data buf) when Cstruct.len buf = 0 ->
-                                ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "src/mirage_channel.ml", line 100, characters 20-31:
- 100 |     | Some buf when Cstruct.len buf = 0 -> ibuf_refill t >>=~ fun _ -> get_ibuf t
-                           ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "src/mirage_channel.ml", line 117, characters 16-27:
- 117 |     let avail = Cstruct.len buf in
-                       ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "src/mirage_channel.ml", line 136, characters 37-48:
- 136 |         loop (buffer :: acc) (len - (Cstruct.len buffer)) in
-                                            ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "src/mirage_channel.ml", line 142, characters 14-25:
- 142 |     let len = Cstruct.len buf in
-                     ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "src/mirage_channel.ml", line 164, characters 33-44:
- 164 |       | Ok (`Not_found buf) when Cstruct.len buf = 0 -> Lwt.return (Ok (`Data acc))
-                                        ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "src/mirage_channel.ml", line 168, characters 23-34:
- 168 |           let buflen = Cstruct.len buf in
-                              ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "src/mirage_channel.ml", line 190, characters 19-30:
- 190 |     |Some buf when Cstruct.len buf = t.opos -> (* obuf is full *)
-                          ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "src/mirage_channel.ml", line 205, characters 19-30:
- 205 |     |Some buf when Cstruct.len buf = t.opos -> queue_obuf t; alloc_obuf t
-                          ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "src/mirage_channel.ml", line 223, characters 16-27:
- 223 |     let avail = Cstruct.len buf - t.opos in
-                       ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- (cd _build/default && /home/opam/.opam/default/bin/ocamlopt.opt -w -40 -g -I src/.mirage_channel.objs/byte -I src/.mirage_channel.objs/native -I /home/opam/.opam/default/lib/bigarray-compat -I /home/opam/.opam/default/lib/cstruct -I /home/opam/.opam/default/lib/fmt -I /home/opam/.opam/default/lib/logs -I /home/opam/.opam/default/lib/lwt -I /home/opam/.opam/default/lib/mirage-flow -cmi-file src/.mirage_channel.objs/byte/mirage_channel_lwt.cmi -no-alias-deps -o src/.mirage_channel.objs/native/mirage_channel_lwt.cmx -c -impl src/mirage_channel_lwt.ml)
- File "src/mirage_channel_lwt.ml", line 1, characters 4-20:
- 1 | [@@@ocaml.deprecated "This module will be removed from MirageOS 4.0. Please use Mirage_channel instead."]
-         ^^^^^^^^^^^^^^^^
- Warning 53 [misplaced-attribute]: the ocaml.deprecated attribute cannot appear in this context
-> compiled  mirage-channel.4.0.1
-> installed mirage-channel.4.0.1

=== STDERR ===

2026-06-19 20:12.37: OK: build mirage-channel.4.0.1 (runc: 2.7s, disk: 14KB)
2026-06-19 20:12.37: Job succeeded