program hangs when using String::from_char with negativ value

[konstin]

The following program compiles, but when launched, it uses 100% of one cpu core but never finishes:

fn main() {
    println!("{}", String::from_char(-1, ' '));
}

EDIT: System & Version:

rustc 0.13.0-nightly (bd7138dd6 2014-10-27 23:02:55 +0000)
binary: rustc
commit-hash: bd7138dd698dde29fb4d7fd34529a863b85d947e
commit-date: 2014-10-27 23:02:55 +0000
host: x86_64-unknown-linux-gnu
release: 0.13.0-nightly

[thestinger]

This is working as intended. The 1 is a uint literal, and the - makes it wrap around to uint::MAX. It would get killed by the OOM killer if you waited long enough.