hex = { package = "hex-conservative", version = "0.1.1", default-features = false }
regex = { version = "1.5.6", optional = true }
backtrace = { version = "0.3", optional = true }
hex = { package = "hex-conservative", version = "0.1.1", default-features = false }
regex = { version = "1.5.6", optional = true }
backtrace = { version = "0.3", optional = true }