message: Upgrade hashbrown to 0.12.3
  This fixes a double-free in the `clone_from` function if dropping an
  existing element in the table panics. See
  for more details.
diff: @@ -163,9 +163,9 @@ dependencies = [
  [[package]]
  name = "hashbrown"
  -version = "0.12.0"
  +version = "0.12.3"
  source = "registry+https://github.com/rust-lang/crates.io-index"
  -checksum = "8c21d40587b92fa6a6c6e3c1bdbf87d75511db5672f9c93175574b3a00df1758"
  +checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
  [[package]]
  name = "indexmap"
  