There was a proposal at some point to integrate github.com/pkg/errors into the stdlib, since it's pretty much a drop-in replacement to the current errors packag

There was a proposal at some point to integrate github.com/pkg/errors into the stdlib, since it's pretty much a drop-in replacement to the current errors package, with extras. One of them is that errors contain stack traces that can be printed out if needed. Pretty useful, and still not an exception.