6 pub struct Instant(Duration);  struct
8 impl Ord for Instant {  implementation
14 impl Eq for Instant {}  implementation
16 impl Instant {  impl
40     pub fn checked_add(&self, duration: Duration) -> Option<Instant> {  in checked_add()
48     pub fn checked_sub(&self, duration: Duration) -> Option<Instant> {  in checked_sub()
71 impl Add<Duration> for Instant {  implementation
80 impl AddAssign<Duration> for Instant {  implementation
87 impl Sub<Duration> for Instant {  implementation
96 impl Sub<Instant> for Instant {  implementation
105 impl SubAssign<Duration> for Instant {  implementation