println!(format!("")) causes infinite loop in compiler

[rcxdude]

Attempting to compile:

fn main() {
    println!(format!("test"))
}

Causes rustc to go into an infinite loop printing out the same two lines:

testcase.rs:2:14: 2:20 error: macro undefined: 'format'
testcase.rs:2     println!(format!("test"))

[alexcrichton]

Closing as a dupe of #11692, but thanks for the report!