view .arcconfig @ 44189:4a4c3b9fd91b

rust-cpython: make sure PySharedRef::borrow_mut() never panics

Since it returns a Result, it shouldn't panic depending on where the
borrowing fails.

PySharedRef::borrow_mut() will be renamed to try_borrow_mut() by the next
patch.

{
    "conduit_uri": "https://phab.mercurial-scm.org/api",
    "phabricator.uri": "https://phab.mercurial-scm.org/",
    "repository.callsign": "HG",
    "arc.land.onto.default": "@",
    "base": "hg:.^"
}