Just started happing both in CI boxes and on my Mac:
$ git pull # Fetch received by "web.phacility.net", forwarding to cluster host. # Waiting up to 120 second(s) for a cluster read lock on "repo002.phacility.net"... # Acquired read lock immediately. # Device "repo002.phacility.net" is already a cluster leader and does not need to be synchronized. # Cleared to fetch on cluster host "repo002.phacility.net". PHP Fatal error: Uncaught exception 'FilesystemException' with message 'Requested path '/core/log/hyper' is not writable.' in /core/lib/libphutil/src/filesystem/Filesystem.php:1107 Stack trace: #0 /core/lib/libphutil/src/filesystem/Filesystem.php(650): Filesystem::assertWritable('/core/log/hyper') #1 /core/lib/libphutil/src/filesystem/PhutilDeferredLog.php(183): Filesystem::createDirectory('/core//log/hype...', 493, true) #2 /core/lib/libphutil/src/filesystem/PhutilDeferredLog.php(155): PhutilDeferredLog->write() #3 [internal function]: PhutilDeferredLog->__destruct() #4 {main} thrown in /core/lib/libphutil/src/filesystem/Filesystem.php on line 1107 Already up-to-date.