Lines      Copies    Function name
  -----      ------    -------------
  36 (100%)  4 (100%)  (TOTAL)
   9 (25.0%) 1 (25.0%) <crypto_mac::errors::InvalidKeyLength as core::fmt::Debug>::fmt
   9 (25.0%) 1 (25.0%) <crypto_mac::errors::InvalidKeyLength as core::fmt::Display>::fmt
   9 (25.0%) 1 (25.0%) <crypto_mac::errors::MacError as core::fmt::Debug>::fmt
   9 (25.0%) 1 (25.0%) <crypto_mac::errors::MacError as core::fmt::Display>::fmt