Homu retry log - libc

Time (UTC) PR Message
2021-07-29 23:30:01 2304
@bors retry
2021-07-29 19:20:23 2306
Oh well, actually there was another failure:
```
 qemu-system-sparc64: terminating on signal 15 from pid 3193 (timeout)
```

@bors retry
2021-07-13 08:48:12 2282
```
 qemu-system-sparc64: terminating on signal 15 from pid 2415 (timeout)
```

@bors retry
2021-07-07 06:40:25 2276
Ugh, this PR is CURSED. @bors retry
2021-07-07 05:43:21 2276
@bors retry
2021-07-07 03:54:26 2276
It should be unrelated/spurious, @bors retry
2021-06-28 09:59:14 2258
@bors retry
2021-06-21 09:03:02 2253
@bors retry
2021-06-19 17:20:14 2249
@bors retry
2021-06-18 14:57:57 2244
@bors retry

```
E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/t/tcl8.6/libtcl8.6_8.6.10+dfsg-1_amd64.deb  Undetermined Error [IP: 91.189.88.142 80]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
```