Lines       Copies    Function name
  -----       ------    -------------
  146 (100%)  5 (100%)  (TOTAL)
   50 (34.2%) 1 (20.0%) core::fmt::Arguments::new_v1
   34 (23.3%) 1 (20.0%) <concurrent_queue::PopError as core::fmt::Debug>::fmt
   34 (23.3%) 1 (20.0%) <concurrent_queue::PopError as core::fmt::Display>::fmt
   14 (9.6%)  1 (20.0%) concurrent_queue::PopError::is_closed
   14 (9.6%)  1 (20.0%) concurrent_queue::PopError::is_empty