E0003
An invalid escape in a string: a backslash followed by anything but one of the escapes. Spans the backslash.
Machine-applicable fix: none.
Example
This program fails with E0003.
fn main() {
let path = "C:\data"
}
Fixed
The same program, fixed.
fn main() {
let path = "C:\\data"
}
Listed in the checker notes. oskac explain E0003 prints this entry offline.