Add the OCaml problem matcher · ocaml/setup-ocaml@8f18152

Unable to process command '::add-matcher::/home/runner/work/setup-ocaml/setup-ocaml/.github/ocaml.json' successfully.

Only the last pattern in a multiline matcher may set 'loop'

An error has been caught in some system package index files, so the system package index files have been re-synchronised, and the system package installation has been retried: the process '/usr/bin/sudo' failed with exit code 100