Documentation for method backtrace assembled from the following types:

class Exception

From Exception

(Exception) method backtrace

Defined as:

method backtrace(Exception:D:)

Returns the backtrace associated with the exception in a Backtrace object or an empty string if there is none. Only makes sense on exceptions that have been thrown at least once.

try die "Something bad happened";
with $! { .backtrace.print ; }