Try this
- Use --batch for gpg command
- use keyserver hkp://ha.pool.sks-keyservers.net:80
- use keyserver hkp://ipv4.pool.sks-keyservers.net:80
- use key B42F6819007F00F88E364FD4036A9C25BF357DD4 and F1182E81C792928921DBCAB4CFCA4A29D26468DE
- look here for reference: https://gist.github.com/degree/51accc0da6cab6d8b5fb06b833bdac76 (it builds but is not guaranteed to work)