varnishmtail is having a bad time on cp4032 and panics quite often:
Jan 24 11:45:15 cp4032 varnishmtail[15172]: panic: runtime error: index out of range Jan 24 11:45:15 cp4032 varnishmtail[15172]: goroutine 43 [running]: Jan 24 11:45:15 cp4032 varnishmtail[15172]: bytes.(*Buffer).WriteByte(0xc000298000, 0xc00063e073, 0x0, 0x0) Jan 24 11:45:15 cp4032 varnishmtail[15172]: /usr/lib/go-1.11/src/bytes/buffer.go:271 +0xa8 Jan 24 11:45:15 cp4032 varnishmtail[15172]: bytes.(*Buffer).WriteRune(0xc000298000, 0x73, 0xd42, 0x73, 0x1) Jan 24 11:45:15 cp4032 varnishmtail[15172]: /usr/lib/go-1.11/src/bytes/buffer.go:281 +0x14c Jan 24 11:45:15 cp4032 varnishmtail[15172]: github.com/google/mtail/internal/tailer.(*File).Read(0xc000286480, 0xc0002e1dd8, 0x1) Jan 24 11:45:15 cp4032 varnishmtail[15172]: github.com/google/mtail/internal/tailer/file.go:197 +0xf9 Jan 24 11:45:15 cp4032 varnishmtail[15172]: github.com/google/mtail/internal/tailer.(*File).Follow(0xc000286480, 0xc0001aae98, 0xc0001aae98) Jan 24 11:45:15 cp4032 varnishmtail[15172]: github.com/google/mtail/internal/tailer/file.go:143 +0x3b3 Jan 24 11:45:15 cp4032 varnishmtail[15172]: github.com/google/mtail/internal/tailer.doFollow(0xc000286480) Jan 24 11:45:15 cp4032 varnishmtail[15172]: github.com/google/mtail/internal/tailer/tail.go:203 +0x2f Jan 24 11:45:15 cp4032 varnishmtail[15172]: github.com/google/mtail/internal/tailer.(*Tailer).handleLogEvent(0xc00027ff80, 0x7ffce3047f22, 0xa) Jan 24 11:45:15 cp4032 varnishmtail[15172]: github.com/google/mtail/internal/tailer/tail.go:198 +0x10a Jan 24 11:45:15 cp4032 varnishmtail[15172]: github.com/google/mtail/internal/tailer.(*Tailer).run(0xc00027ff80, 0xc0001c69c0) Jan 24 11:45:15 cp4032 varnishmtail[15172]: github.com/google/mtail/internal/tailer/tail.go:293 +0x177 Jan 24 11:45:15 cp4032 varnishmtail[15172]: created by github.com/google/mtail/internal/tailer.New Jan 24 11:45:15 cp4032 varnishmtail[15172]: github.com/google/mtail/internal/tailer/tail.go:79 +0x193 Jan 24 11:45:15 cp4032 varnishmtail[15172]: Log overrun Jan 24 11:45:15 cp4032 varnishmtail[15172]: Log reacquired Jan 24 11:45:15 cp4032 systemd[1]: varnishmtail.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Jan 24 11:45:15 cp4032 systemd[1]: varnishmtail.service: Failed with result 'exit-code'.