source/dunex/auth/crypt.d(33,67): Error: `@safe` function `dunex.auth.crypt.crypt` cannot call `@system` function `std.string.fromStringz!char.fromStringz` /opt/dmd-safe/dmd/generated/linux/release/64/../../../../../phobos/std/string.d(222,15): `std.string.fromStringz!char.fromStringz` is declared here source/dunex/auth/crypt.d(33,12): Error: cast from `char[]` to `string` not allowed in safe code /opt/dmd-safe/dmd/dmd-safe failed with exit code 1.