The index of the piece that failed.
The tries the piece was given.
What its last try threw. When the caller's sentences threw before a try, that error.
Readonly indexThe index of the piece that failed.
Readonly attemptsThe tries the piece was given.
Readonly causeWhat its last try threw. When the caller's sentences threw before a try, that error.
A piece failed every attempt; the pieces before it were reported.