I get a notification on my phone for some of my fatal panics on go programs. Here's how:
First, I generally run everything under daemontools (or similar) so it's monitored and will restart itself on failure.
Then, I generally log to syslog using the built-in log package. My syslog forwards to papertrail where I can review the state of things, set up alerts, etc... It is here I forward undesirable event notifications to an email address and notifymyandroid so I can be made aware of problems, search for similar recent issues, look at context around the problems, etc...
...but you can't log your own uncaught fatal panic, so I wrote logexec to execute the program and log its stdout and stderr separately along with an unsuccessful exit notification.
Example:
logexec -tag myprogram /path/to/myprogram -and -its arguments