Lines      Copies    Function name
  -----      ------    -------------
  51 (100%)  4 (100%)  (TOTAL)
  26 (51.0%) 1 (25.0%) jemallocator::layout_to_flags
  10 (19.6%) 1 (25.0%) core::num::<impl usize>::trailing_zeros
   9 (17.6%) 1 (25.0%) <jemallocator::Jemalloc as core::fmt::Debug>::fmt
   6 (11.8%) 1 (25.0%) jemalloc_sys::MALLOCX_ALIGN