Error logs to the ERROR, WARNING, and INFO logs.

Errorf logs to the ERROR, WARNING, and INFO logs.

Errorln logs to the ERROR, WARNING, and INFO logs.

Fatal logs to the FATAL, ERROR, WARNING, and INFO logs, including a stack trace of all running goroutines, then calls os.Exit(255).

Fatalf logs to the FATAL, ERROR, WARNING, and INFO logs, including a stack trace of all running goroutines, then calls os.Exit(255).

Fatalln logs to the FATAL, ERROR, WARNING, and INFO logs, including a stack trace of all running goroutines, then calls os.Exit(255).

Info logs to the INFO log.

Infof logs to the INFO log.

Infoln logs to the INFO log.

Warning logs to the WARNING and INFO logs.

Warningf logs to the WARNING and INFO logs.

Warningln logs to the WARNING and INFO logs.