Cargo root dir panic

gistfile1.txt

PS C:\> with RUST_BACKTRACE=1 cargo init --name foo
thread 'main' panicked at 'called `Option::unwrap()` on a `None` value', src\libcore\option.rs:335
stack backtrace:
   0: git_reference_type
   1: git_reference_type
   2: git_reference_type
   3: git_reference_type
   4: git_reference_type
   5: git_reference_type
   6: git_reference_type
   7: git_reference_type
   8: git_reference_type
   9: <unknown>
  10: <unknown>
  11: <unknown>
  12: <unknown>
  13: <unknown>
  14: <unknown>
  15: git_reference_type
  16: git_reference_type
  17: git_odb_object_id
  18: BaseThreadInitThunk
PS C:\> with RUST_BACKTRACE=1 rustup run nightly cargo init --name foo
thread 'main' panicked at 'called `Option::unwrap()` on a `None` value', src\libcore\option.rs:335:20
stack backtrace:
   0: git_revwalk_repository
   1: git_revwalk_repository
   2: git_revwalk_repository
   3: git_revwalk_repository
   4: git_revwalk_repository
   5: git_revwalk_repository
   6: git_revwalk_repository
   7: git_revwalk_repository
   8: git_revwalk_repository
   9: <unknown>
  10: <unknown>
  11: <unknown>
  12: <unknown>
  13: <unknown>
  14: <unknown>
  15: git_revwalk_repository
  16: git_revwalk_repository
  17: git_index_owner
  18: BaseThreadInitThunk