tokio-reactor-0.2.0-alpha.1            1.01 ± 0.03 times faster than 'custom cargo check -j8'
signature-1.5.0                        1.01 ± 0.01 times faster than 'custom cargo check -j8'
cranelift-codegen-shared-0.80.0        1.01 ± 0.01 times faster than 'custom cargo check -j8'