std.file.write versus std.stdio.write

[dsmith]

import std.stdio;   // no std.file is imported, yet the following 
error:

Error: std.file.write at /usr/include/dmd/phobos/std/file.d(419) 
conflicts with std.stdio.write!(string,string).write at 
/usr/include/dmd/phobos/std/stdio.d(1544)