Asynchronous digests part #2 (#13341) #38112

Job	Run time
Bootstrap (ubuntu-latest)	4m 49s
Nix Build 4.08 (ubuntu-latest)	6m 0s
Nix Tests (ubuntu-latest)	8m 23s
Documentation	51s
Cygwin Build	4m 4s
Format	1m 21s
Nix Build (macos-latest)	2m 58s
Nix Build (ubuntu-latest)	1m 12s
Test that the utop dev tool can be built and run	9m 4s
Build with OxCaml (ubuntu-latest)	25m 59s
Rocq 9.1 (native)	13m 39s
Rocq 9.1	7m 42s
Wasm_of_ocaml	7m 49s
Building Dune with OxCaml	34m 32s
Create local opam switch (macos-latest, 5)	9m 13s
Build microbenchmarks	2m 3s
Create local opam switch (ubuntu-latest, 5)	9m 45s
Build (ocaml-compiler.5.4.0,system-msvc, windows-latest, ocaml-compiler.5.4.0-system-msvc, true)	20m 37s
Build (4.14.x, 4.14.x, ubuntu-latest)	4m 31s
Build (5.4.x, 5.4.x, ubuntu-latest, true)	8m 53s
Build (ocaml-base-compiler.5.4.0,system-mingw, windows-latest, ocaml-compiler.5.4.0-system-mingw,...	21m 1s
Build (ocaml-variants.4.14.2+options,ocaml-option-32bit, ocaml-variants.4.14.2-ocaml-option-32bit...	3m 45s
Build (5.4.x, 5.4.x, macos-latest, true)	10m 14s
Build (ocaml-variants.5.5.0+trunk, ocaml-variants.5.5.0+trunk, ubuntu-latest)	5m 47s
Build (4.14.x, 4.14.x, macos-latest)	6m 9s
Build (5.4.x, 5.4.x, macos-15-intel)	11m 4s
	4h 1m 25s

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