AnyError is a serializable casing for Error.
AnyError can be employed to transform other Error types into a serializable Error for transmission, preserving most of the essential information.
let err = fmt::Error {};
let e = AnyError::new(&err)
.add_context(|| "running test")
.add_context(|| "developing new feature");
println!("{:#}", e);The above code will print error description with context:
core::fmt::Error: an error occurred when formatting an argument
while: running test
while: developing new feature