flamegraph

It's used only as a dev dependency in 5 crates.

Number of dependers	flamegraph version	Downloads/month
4	0.6.5	7.3K
1	0.4.0	8

Depender (with downloads and own rev deps)			flamegraph version
310		markovgen	dev	^0.6.5
110		semsimian	dev	^0.6.3
		fast_aug	dev	^0.6
		bitman	dev	^0.6.3
		rust-sike	dev	^0.4