Searching discourse for that error, it seems like a permissions issue with files in your hosts directory.
If you’re on Windows, see this: Remote Server Setup on Windows
Otherwise, see this: Exec format error / Hosts chmod And if you’re not on Windows, this seems like a new error I haven’t seen before. Could you tell us your OS? Has deployment ever succeeded in the past? Could you post any more of the output (if there is more)? Could you tell us of any customizations you think might be relevant? Thanks!