Note that this experiment is based on #984

How to reproduce

mkdir all-sources
cd all-sources
opam list -a --columns name | grep -v "^#" | xargs -n 1 -I {} opam source {}
find ./ -type f -name "*.ml" -o -name "*.mli" | parallel -- ../ocamlformat/_build/release/src/ocamlformat.exe --enable-outside-detected-project --no-version-check --quiet --no-comment-check --ignore-invalid-option > /dev/null

gives, with some manual cleanup, the following errors:

• ./bap-objdump.1.6.0/lib/x86_cpu/x86_types.ml: formatting did not stabilize after 10 iterations. (fixed by Fix unstable unattached doc comment in records #998)
• ./boomerang.1.1.0/lib/bakery.ml: ast changed. (issue Bug: String literal changed #994, fixed by Fix string literal changed #995)
• ./frenetic.5.0.3/test/Test_Frenetic_NetKAT_Compiler.ml: ast changed. (fixed by Fix string literal changed #995)
• ./mldonkey.3.1.6/src/daemon/common/commonMessages.ml: ast changed. (fixed by Fix string literal changed #995)
• ./mldonkey.3.1.6/src/daemon/common/commonPictures.ml: ast changed. (fixed by Fix string literal changed #995)
• ./ocaml-variants.4.10.0+trunk+flambda/testsuite/tests/parsetree/source.ml: ~~generating invalid ocaml syntax~~ ast changed. (fixed by Fix type variable #996)
• ./ocaml_at_p.1.1.0/test/test.ml: ast changed. (Fix parens around constrained expr with attrs #987)
• ./ppx_cstubs.0.2.0/examples/inline.c.ml: generating invalid ocaml syntax. (Fix: escape special characters in external declaration #988)
• ./ppx_monadic.2.3.0/tests/test_beginm.ml: unhandled exception. Use [--debug] for details.
• ./ppx_monoid.0.2/test/test.ml: unhandled exception. Use [--debug] for details. (issue Bug: Crash on extension on sequence #990)
• ./tensorflow.0.0.11/src/stubs/tf_bindings.ml: formatting did not stabilize after 10 iterations.
• ./ott.0.29/src/lex_menhir_pp.ml: formatting did not stabilize after 10 iterations. (fixed by Fix comments' position #921)
• ./ocamleditor.1.13.4/src/oebuild/oebuild_parallel.ml: formatting did not stabilize after 10 iterations. (fixed by Fix comments' position #921)
• ./ocaml-protoc.1.2.0/src/compilerlib/pb_codegen_backend.ml: formatting did not stabilize after 10 iterations.
• ./haxe.3.4.7/libs/ilib/ilMeta.mli: formatting did not stabilize after 10 iterations. (issue Bug: Unstable comment in variant decl #989)
• ./bsbnative.1.9.4/jscomp/core/js_main.ml: formatting did not stabilize after 10 iterations. (fixed by Fix comments' position #921)
• ./bsbnative.1.9.4/jscomp/test/ocaml_proto_test.ml: formatting did not stabilize after 10 iterations.
• ./frama-c-base.15.0/src/libraries/utils/utf8_logic.ml: formatting did not stabilize after 10 iterations.
• ./frama-c.19.0/src/libraries/utils/utf8_logic.ml: formatting did not stabilize after 10 iterations.
• ./KaSim.4.0.0/KaSa_rep/lib/full/superargTk.ml: formatting did not stabilize after 10 iterations. (fixed by Fix comments' position #921)

(check the box then the issue has been identified and created or fixed)