This happens (at least) due to https://github.com/libgit2/libgit2/commit/9dd1bfe81c3aba6ce35ed85bf62fa75d9c61e1a6 in which the allocators have been simplified.
This happens (at least) due to libgit2/libgit2@9dd1bfe in which the allocators have been simplified.