source/nep/scanner.d(32,11): Error: `@safe` function `nep.scanner.Scanner.next` cannot call `@system` function `std.stdio.File.readln!string.readln`
/opt/dmd-safe/dmd/generated/linux/release/64/../../../../../phobos/std/stdio.d(1638,7):        `std.stdio.File.readln!string.readln` is declared here
/opt/dmd-safe/dmd/dmd-safe failed with exit code 1.