regex = { version = "1.5.6", optional = true }
backtrace = { version = "0.3", optional = true }
core2 = { version = "0.3.0", optional = true, default-features = false }
[dev-dependencies]
regex = { version = "1.5.6", optional = true }
backtrace = { version = "0.3", optional = true }
core2 = { version = "0.3.0", optional = true, default-features = false }
[dev-dependencies]