2022-12-31T03:53:05 rpiboot-unstable 2021.07.01 -> 20221215-105525 https://github.com/raspberrypi/usbboot/releases
2022-12-31T03:53:08 attrpath: rpiboot-unstable
2022-12-31T03:53:08 Checking auto update branch...
2022-12-31T03:53:08 No auto update branch exists
2022-12-31T03:53:11 [version] 
2022-12-31T03:53:12 stderr did not split as expected full stderr was: 
warning: unknown setting 'experimental-features'
error: attribute 'rpiboot-unstable' in selection path 'rpiboot-unstable.src' not found
stderr did not split as expected full stderr was: 
warning: unknown setting 'experimental-features'
error: attribute 'rpiboot-unstable' in selection path 'rpiboot-unstable.originalSrc' not found
stderr did not split as expected full stderr was: 
warning: unknown setting 'experimental-features'
error: attribute 'rpiboot-unstable' in selection path 'rpiboot-unstable' not found