Build:
  1. 0
2026-06-24 16:43.36: New job: build mirage-block-unix.2.12.1 (ce952c892d48)
2026-06-24 16:43.36: Waiting for resource in pool day11-builds
2026-06-24 17:29.29: Got resource from pool day11-builds
2026-06-24 17:29.29: [profile full] build mirage-block-unix.2.12.1
2026-06-24 17:29.29: build mirage-block-unix.2.12.1 (ce952c892d48)
=== DEPENDENCIES (32 transitive) ===
  angstrom.0.16.1                                    b3c0b2c22161
  base-bytes.base                                    c40d17bc86b5
  base-threads.base                                  c9e7bdbf5823
  base-unix.base                                     7d1428be9ddb
  bigarray-compat.1.1.0                              6340769fc89d
  bigstringaf.0.10.0                                 2670f46d1cef
  cmdliner.1.3.0                                     7280d3fb1acd
  conf-linux-libc-dev.0                              2d4ad9bc3a8f
  conf-pkg-config.5                                  d5de2c6a88f9
  cppo.1.8.0                                         5f3f70cae95b
  csexp.1.5.2                                        610c78f17734
  cstruct.6.0.1                                      01957cad303e
  cstruct-lwt.6.0.1                                  d1cc57ec2ebe
  dune.3.23.1                                        848a72441e15
  dune-configurator.3.23.1                           bc97ce98d8a9
  fmt.0.11.0                                         7cf6f7d63275
  io-page.2.4.0                                      9e991d796515
  logs.0.10.0                                        eb8d773a14d6
  lwt.6.1.2                                          d46d0c4f757d
  mirage-block.2.0.1                                 a374c11b798b
  mirage-device.2.0.0                                a361c907f55f
  ocaml.4.14.4                                       b047fb9251f4
  ocaml-base-compiler.4.14.4                         d3b7ccb2c6fb
  ocaml-config.2                                     2d9c209f5590
  ocaml-syntax-shims.1.0.0                           ac7d70c1c23c
  ocamlbuild.0.16.1                                  7e0d6aadb209
  ocamlfind.1.9.8                                    214dd418ac02
  ocplib-endian.1.2                                  380dd426e898
  rresult.0.7.0                                      ab060a31b0aa
  stringext.1.6.0                                    9dbcca0df50a
  topkg.1.1.1                                        511e1a1958da
  uri.4.4.0                                          ae40a4374ff7
=== STDOUT ===
Processing: [default: loading data]
[mirage-block-unix.2.12.1: dl]
[mirage-block-unix.2.12.1: extract]
-> retrieved mirage-block-unix.2.12.1  (https://opam.ocaml.org/cache)
[mirage-block-unix: dune build]
+ /home/opam/.opam/default/bin/dune "build" "-p" "mirage-block-unix" "-j" "39" (CWD=/home/opam/.opam/default/.opam-switch/build/mirage-block-unix.2.12.1)
- (cd _build/default/lib && /usr/bin/gcc -O2 -fno-strict-aliasing -fwrapv -pthread -fPIC -D_FILE_OFFSET_BITS=64 -O2 -fno-strict-aliasing -fwrapv -pthread -fPIC -g -I /home/opam/.opam/default/lib/ocaml -I /home/opam/.opam/default/lib/angstrom -I /home/opam/.opam/default/lib/bigarray-compat -I /home/opam/.opam/default/lib/bigstringaf -I /home/opam/.opam/default/lib/bytes -I /home/opam/.opam/default/lib/cstruct -I /home/opam/.opam/default/lib/cstruct-lwt -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/lwt/unix -I /home/opam/.opam/default/lib/mirage-block -I /home/opam/.opam/default/lib/mirage-device -I /home/opam/.opam/default/lib/ocaml/threads -I /home/opam/.opam/default/lib/ocplib-endian -I /home/opam/.opam/default/lib/ocplib-endian/bigstring -I /home/opam/.opam/default/lib/rresult -I /home/opam/.opam/default/lib/stringext -I /home/opam/.opam/default/lib/uri -o blkgetsize_stubs.o -c blkgetsize_stubs.c)
- blkgetsize_stubs.c: In function 'stub_blkgetsize':
- blkgetsize_stubs.c:126:13: warning: "enter_blocking_section" is deprecated: use "caml_enter_blocking_section" instead
-   126 |   enter_blocking_section();
-       |             ^~~~~~~~~~~~~~~                                                                        
- blkgetsize_stubs.c:129:13: warning: "leave_blocking_section" is deprecated: use "caml_leave_blocking_section" instead
-   129 |   leave_blocking_section();
-       |             ^~~~~~~~~~~~~~~                                                                        
- blkgetsize_stubs.c: In function 'stub_blkgetsectorsize':
- blkgetsize_stubs.c:144:13: warning: "enter_blocking_section" is deprecated: use "caml_enter_blocking_section" instead
-   144 |   enter_blocking_section();
-       |             ^~~~~~~~~~~~~~~                                                                        
- blkgetsize_stubs.c:147:13: warning: "leave_blocking_section" is deprecated: use "caml_leave_blocking_section" instead
-   147 |   leave_blocking_section();
-       |             ^~~~~~~~~~~~~~~                                                                        
- (cd _build/default/lib && /usr/bin/gcc -O2 -fno-strict-aliasing -fwrapv -pthread -fPIC -D_FILE_OFFSET_BITS=64 -O2 -fno-strict-aliasing -fwrapv -pthread -fPIC -g -I /home/opam/.opam/default/lib/ocaml -I /home/opam/.opam/default/lib/angstrom -I /home/opam/.opam/default/lib/bigarray-compat -I /home/opam/.opam/default/lib/bigstringaf -I /home/opam/.opam/default/lib/bytes -I /home/opam/.opam/default/lib/cstruct -I /home/opam/.opam/default/lib/cstruct-lwt -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/lwt/unix -I /home/opam/.opam/default/lib/mirage-block -I /home/opam/.opam/default/lib/mirage-device -I /home/opam/.opam/default/lib/ocaml/threads -I /home/opam/.opam/default/lib/ocplib-endian -I /home/opam/.opam/default/lib/ocplib-endian/bigstring -I /home/opam/.opam/default/lib/rresult -I /home/opam/.opam/default/lib/stringext -I /home/opam/.opam/default/lib/uri -o odirect_stubs.o -c odirect_stubs.c)
- odirect_stubs.c: In function 'stub_openfile_direct':
- odirect_stubs.c:47:13: warning: "enter_blocking_section" is deprecated: use "caml_enter_blocking_section" instead
-    47 |   enter_blocking_section();
-       |             ^~~~~~~~~~~~~~~                                                                        
- odirect_stubs.c:63:13: warning: "leave_blocking_section" is deprecated: use "caml_leave_blocking_section" instead
-    63 |   leave_blocking_section();
-       |             ^~~~~~~~~~~~~~~                                                                        
- (cd _build/default/lib && /usr/bin/gcc -O2 -fno-strict-aliasing -fwrapv -pthread -fPIC -D_FILE_OFFSET_BITS=64 -O2 -fno-strict-aliasing -fwrapv -pthread -fPIC -g -I /home/opam/.opam/default/lib/ocaml -I /home/opam/.opam/default/lib/angstrom -I /home/opam/.opam/default/lib/bigarray-compat -I /home/opam/.opam/default/lib/bigstringaf -I /home/opam/.opam/default/lib/bytes -I /home/opam/.opam/default/lib/cstruct -I /home/opam/.opam/default/lib/cstruct-lwt -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/lwt/unix -I /home/opam/.opam/default/lib/mirage-block -I /home/opam/.opam/default/lib/mirage-device -I /home/opam/.opam/default/lib/ocaml/threads -I /home/opam/.opam/default/lib/ocplib-endian -I /home/opam/.opam/default/lib/ocplib-endian/bigstring -I /home/opam/.opam/default/lib/rresult -I /home/opam/.opam/default/lib/stringext -I /home/opam/.opam/default/lib/uri -o flock_stubs.o -c flock_stubs.c)
- flock_stubs.c: In function 'stub_flock':
- flock_stubs.c:47:13: warning: "enter_blocking_section" is deprecated: use "caml_enter_blocking_section" instead
-    47 |   enter_blocking_section();
-       |             ^~~~~~~~~~~~~~~                                                                        
- flock_stubs.c:49:13: warning: "leave_blocking_section" is deprecated: use "caml_leave_blocking_section" instead
-    49 |   leave_blocking_section();
-       |             ^~~~~~~~~~~~~~~                                                                        
- (cd _build/default && /home/opam/.opam/default/bin/ocamlc.opt -w -40 -g -bin-annot -I lib/.mirage_block_unix.objs/byte -I /home/opam/.opam/default/lib/angstrom -I /home/opam/.opam/default/lib/bigarray-compat -I /home/opam/.opam/default/lib/bigstringaf -I /home/opam/.opam/default/lib/bytes -I /home/opam/.opam/default/lib/cstruct -I /home/opam/.opam/default/lib/cstruct-lwt -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/lwt/unix -I /home/opam/.opam/default/lib/mirage-block -I /home/opam/.opam/default/lib/mirage-device -I /home/opam/.opam/default/lib/ocaml/threads -I /home/opam/.opam/default/lib/ocplib-endian -I /home/opam/.opam/default/lib/ocplib-endian/bigstring -I /home/opam/.opam/default/lib/rresult -I /home/opam/.opam/default/lib/stringext -I /home/opam/.opam/default/lib/uri -intf-suffix .ml -no-alias-deps -o lib/.mirage_block_unix.objs/byte/block.cmo -c -impl lib/block.ml)
- File "lib/block.ml", line 253, characters 96-107:
- 253 |     else "with buffers of length [ " ^ (String.concat ", " (List.map (fun b -> string_of_int @@ Cstruct.len b) buffers)) ^ " ]" in
-                                                                                                       ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- File "lib/block.ml", line 258, characters 16-27:
- 258 |       let len = Cstruct.len b in
-                       ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- File "lib/block.ml", line 288, characters 41-52:
- 288 |   let len = List.fold_left (fun acc c -> Cstruct.len c + acc) 0
-                                                ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- File "lib/block.ml", line 300, characters 15-26:
- 300 |       let y' = Cstruct.len y in
-                      ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- File "lib/block.ml", line 344, characters 79-90:
- 344 |                           let virtual_zeroes = Int64.(sub (add offset (of_int (Cstruct.len b))) x.size_bytes) in
-                                                                                      ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- File "lib/block.ml", line 359, characters 77-88:
- 359 |                           x.seek_offset <- Int64.(add x.seek_offset (of_int (Cstruct.len b)));
-                                                                                    ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- File "lib/block.ml", line 415, characters 77-88:
- 415 |                           x.seek_offset <- Int64.(add x.seek_offset (of_int (Cstruct.len b)));
-                                                                                    ^^^^^^^^^^^
- 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 lib/.mirage_block_unix.objs/byte -I lib/.mirage_block_unix.objs/native -I /home/opam/.opam/default/lib/angstrom -I /home/opam/.opam/default/lib/bigarray-compat -I /home/opam/.opam/default/lib/bigstringaf -I /home/opam/.opam/default/lib/bytes -I /home/opam/.opam/default/lib/cstruct -I /home/opam/.opam/default/lib/cstruct-lwt -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/lwt/unix -I /home/opam/.opam/default/lib/mirage-block -I /home/opam/.opam/default/lib/mirage-device -I /home/opam/.opam/default/lib/ocaml/threads -I /home/opam/.opam/default/lib/ocplib-endian -I /home/opam/.opam/default/lib/ocplib-endian/bigstring -I /home/opam/.opam/default/lib/rresult -I /home/opam/.opam/default/lib/stringext -I /home/opam/.opam/default/lib/uri -intf-suffix .ml -no-alias-deps -o lib/.mirage_block_unix.objs/native/block.cmx -c -impl lib/block.ml)
- File "lib/block.ml", line 253, characters 96-107:
- 253 |     else "with buffers of length [ " ^ (String.concat ", " (List.map (fun b -> string_of_int @@ Cstruct.len b) buffers)) ^ " ]" in
-                                                                                                       ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- File "lib/block.ml", line 258, characters 16-27:
- 258 |       let len = Cstruct.len b in
-                       ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- File "lib/block.ml", line 288, characters 41-52:
- 288 |   let len = List.fold_left (fun acc c -> Cstruct.len c + acc) 0
-                                                ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- File "lib/block.ml", line 300, characters 15-26:
- 300 |       let y' = Cstruct.len y in
-                      ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- File "lib/block.ml", line 344, characters 79-90:
- 344 |                           let virtual_zeroes = Int64.(sub (add offset (of_int (Cstruct.len b))) x.size_bytes) in
-                                                                                      ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- File "lib/block.ml", line 359, characters 77-88:
- 359 |                           x.seek_offset <- Int64.(add x.seek_offset (of_int (Cstruct.len b)));
-                                                                                    ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- File "lib/block.ml", line 415, characters 77-88:
- 415 |                           x.seek_offset <- Int64.(add x.seek_offset (of_int (Cstruct.len b)));
-                                                                                    ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
-> compiled  mirage-block-unix.2.12.1
-> installed mirage-block-unix.2.12.1

=== STDERR ===

2026-06-24 17:29.53: OK: build mirage-block-unix.2.12.1 (runc: 2.6s, disk: 20KB)
2026-06-24 17:29.53: Job succeeded