#2 Can't find work directory.

Running from cron, it can't find the work directory.

https://www.includehelp.com/golang/how-to-get-the-directory-of-the-currently-running-file-in-golang.aspx

import (
    "os"
    "path/filepath"
)

pathExecutable, err := os.Executable()
if err != nil {
    panic(err)
}
// Getting the directory path/name
dirPathExecutable := filepath.Dir(pathExecutable)
os.Chdir(dirPathExecutable)

That should have the program in the expected directory.

On olympus, you'll see there's a roku.log in your home directory. (A symptom of this issue.) It won't find etherwake.