looks like corrupted o/s but can't reimage until install.build is fixed.
replaced mini. mozillas-MacBook-Air-2:sysadmins vle$ fping bld-lion-r5-001.build.releng.scl3.mozilla.com sbld-lion-r5-001.build.releng.scl3.mozilla.com is alive mozillas-MacBook-Air-2:sysadmins vle$ ssh !$ ssh bld-lion-r5-001.build.releng.scl3.mozilla.com The authenticity of host 'bld-lion-r5-001.build.releng.scl3.mozilla.com (10.26.52.21)' can't be established. RSA key fingerprint is SHA256:B83iFo19hlKCmTn0rmCccS6QS/x4hvoKgIPMy0s4gR4. Are you sure you want to continue connecting (yes/no)?