remark: foo.proto:1:10: "proto4" isn't real, it can't hurt you
error: foo.proto:1:18: missing `;`
remark: foo.proto:7:2: EOF
error: foo.proto:3:1: package
error: foo.proto:3:1: package
error: foo.proto:3:1: this is an overlapping error
error: foo.proto:3:1: P A C K A G E
error: foo.proto:3:1: P A C K A G E
error: foo.proto:3:3: P A C K A G E (different order)
error: foo.proto:3:1: P A C K A G E (single letters)