pub struct Manifest(_);
Panics if it’s not a package (only a workspace).
You can access .package field directly to handle the Option.
.package
Option
source
self
other
==
!=
TypeId
Returns the argument unchanged.
Span
Instrumented
Calls U::from(self).
U::from(self)
That is, this conversion is whatever the implementation of From<T> for U chooses to do.
From<T> for U
Self
Subscriber
WithDispatch