Some errors have detailed explanations: E0277, E0308, E0599. For more information about an error, try `rustc --explain E0277`. warning: `tun1` (bin "tun1") generated 1 warning error: could not compile `tun1` (bin "tun1") due to 4 previous errors; 1 warning emitted The command '/bin/sh -c cargo build --release' returned a non-zero code: 101 Cleaning up project directory and file based variables ERROR: Job failed: exit code 101