Crust weirdness

[3x5co]

I tried to installl caffeine today by running `sudo apt install caffeine`. I got this error message:

```
md5sum: /usr/lib/crust/scp.bin: No such file or directory
E: Sub-process if grep -qE '(u-boot-sunxi|arm-trusted-firmware)'; then touch /tmp/upgrade-uboot; else md5sum /usr/lib/crust/scp.bin > /tmp/crust.md5; fi returned an error code (1)
E: Failure running script if grep -qE '(u-boot-sunxi|arm-trusted-firmware)'; then touch /tmp/upgrade-uboot; else md5sum /usr/lib/crust/scp.bin > /tmp/crust.md5; fi

```

After this, I couldn't installl anything without getting the same message. So I ran the following:

```
sudo mkdir /usr/lib/crust/

sudo cp /usr/bin/scp /usr/lib/crust/scp.bin
```

Now everything works, but this is a hack and I'm not sure what went wrong here, or how to fix it properly. Thoughts?