Fix apt?

Currently on master:

```
$ source devtools/ci/install.sh
Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/e/eglibc/libc6-dev_2.15-0ubuntu10.5_amd64.deb  404  Not Found [IP: 2001:67c:1562::15 80]
Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/e/eglibc/libc-dev-bin_2.15-0ubuntu10.5_amd64.deb  404  Not Found [IP: 2001:67c:1562::15 80]
Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/e/eglibc/libc-bin_2.15-0ubuntu10.5_amd64.deb  404  Not Found [IP: 2001:67c:1562::15 80]
Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/e/eglibc/libc6_2.15-0ubuntu10.5_amd64.deb  404  Not Found [IP: 2001:67c:1562::15 80]
Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/e/eglibc/libc6-dbg_2.15-0ubuntu10.5_amd64.deb  404  Not Found [IP: 2001:67c:1562::15 80]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/e/eglibc/libc6-dev_2.15-0ubuntu10.5_amd64.deb  404  Not Found [IP: 2001:67c:1562::14 80]
Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/e/eglibc/libc-dev-bin_2.15-0ubuntu10.5_amd64.deb  404  Not Found [IP: 2001:67c:1562::14 80]
Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/e/eglibc/libc-bin_2.15-0ubuntu10.5_amd64.deb  404  Not Found [IP: 2001:67c:1562::14 80]
Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/e/eglibc/libc6_2.15-0ubuntu10.5_amd64.deb  404  Not Found [IP: 2001:67c:1562::14 80]
Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/e/eglibc/libc6-i386_2.15-0ubuntu10.5_amd64.deb  404  Not Found [IP: 2001:67c:1562::14 80]
Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/e/eglibc/libc6-dev-i386_2.15-0ubuntu10.5_amd64.deb  404  Not Found [IP: 2001:67c:1562::14 80]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
```