Describe the bug
First-time Zap user here!

Zap doesn't print out any log when using L().

To Reproduce

1. go mod init test
2. go get go.uber.org/zap (v1.27.0)
3. Create simplest main.go:

cat << EOF > main.go
package main
import "go.uber.org/zap"
func main() {
	zap.L().Debug("DEBUG")
	zap.L().Info("INFO")
	zap.L().Warn("WARN")
	zap.L().Fatal("FATAL")
}
EOF

4. Run with go run main.go
5. See exit status 1, and nothing else

I can't just do zap.Info() since there are no such way to call those methods without L().

Expected behavior
It should simply print out the logs in order.

Additional context
-