Using the #[start] attribute causes --test to be silently ignored

[nmsmith]

Example:

#[test]
fn test() {
    assert!(false);
}

#[start]
fn start(argc: int, argv: **u8) -> int {
    return 1;
}

Running rustc with the --test flag here causes compilation to occur as if it wasn't used.

[steveklabnik]

This sample is now

#[start]
fn start(_argc: int, _argv: *const *const u8) -> int {
    0
}

But it still does ignore the --test.

[steveklabnik]

A warning might be appropriate here, as @klutzy suggests. maybe a lint.

[frewsxcv]

Visiting for triage: this is still an issue

coreyf@frewbook-air /tmp> cat hello-world.rs
#![feature(start)]

#[test]
fn test() {
    assert!(false);
}

#[start]
fn start(_argc: isize, _argv: *const *const u8) -> isize {
    0
}

coreyf@frewbook-air /tmp> rustc --test hello-world.rs
coreyf@frewbook-air /tmp> echo $status
0

coreyf@frewbook-air /tmp> ./hello-world
coreyf@frewbook-air /tmp> echo $status
0