The following code (counting lines of given file) fails (Error: Access Violation) with 0.173 but works fine with 0.172:

import std.stdio;
import std.stream;

int main(char[][] args) {
	
	BufferedFile inFile = new BufferedFile();
	try {
		inFile.open( args[ 1 ], FileMode.In ) ;

		// count the lines 
		int max;
		foreach ( ulong n, char[] line; inFile ) {
			max = n;
		}
		
		printf( "%d", max );
		
	} finally {
		inFile.close();
	}
	
    return 0;
}