This adds a new step that attempts to ssh into the host before delegating
the build. This matters most when delegating builds as the root user (such as
in a multi-user Nix installation) because the root user might not have the
destination machine added as a known host. If the destination is not a known
host then the distributed build support will silently fail, which this change
fixes.
This adds a new step that attempts to
sshinto the host before delegating the build. This matters most when delegating builds as the root user (such as in a multi-user Nix installation) because the root user might not have the destination machine added as a known host. If the destination is not a known host then the distributed build support will silently fail, which this change fixes.