stack-collapse is a tool to produce Flame Graph compatible folded stacks from measureme data.
$ # Install stack_collapse if you haven't done so yet.
$ cargo install --git https://github.com/rust-lang/measureme --branch stable stack_collapse
$ git clone https://github.com/rust-lang/regex.git
$ cd regex
$ cargo rustc -- -Z self-profile
$ stack_collapse regex-{pid}.mm_profdata
$ ../path/to/FlameGraph/flamegraph.pl out.stacks_folded > rustc.svg
$ open rustc.svg