use std::error;
use std::fmt;
#[derive(Debug)]
pub struct InvalidThreadAccess;
impl fmt::Display for InvalidThreadAccess {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "fragile value accessed from foreign thread")
}
}
impl error::Error for InvalidThreadAccess {}
#[derive(Debug)]
pub struct FailTakeOwnership;
impl fmt::Display for FailTakeOwnership {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "failed to take ownership of value")
}
}