Stack overflow reported for &'static str `into()`

[johnedmonds]

struct Test {
  s: String
}

impl<'a> From<&'a String> for Test {
  fn from(s: &'a String) -> Test {
    return Test {s: s.to_string()};
  }
}

impl From<&'static str> for Test {
  fn from(s: &'static str) -> Test {
    s.into()
  }
}

fn main() {
  let test: Test = "test".into();
}

Doing rustc main.rs && ./main results in

thread 'main' has overflowed its stack
fatal runtime error: stack overflow
Abort trap: 6

The cause does not appear to actually be a stack overflow though. Running with rust-lldb reports EXC_BAD_ACCESS in the from method for &'static str.

[sfackler]

What behavior do you expect for the impl From<&'static str> for Test impl? It's recursing into itself through the .into() method.

EXC_BAD_ACCESS is how stack overflows are reported.

[estebank]

Same underlying problem as #45838.

[johnedmonds]

Ah, you're right. I'm sorry, when it crashed I didn't get a stack trace, I only got the one frame so I assumed it was something else going on.