The job was canceled because "_7_0_prefer-stable_false" failed.

Your requirements could not be resolved to an installable set of packages. Problem 1 - doctrine/coding-standard[9.0.1, 12.0.0] require php ^7.2 || ^8.0 -> your php version (5.6.40) does not satisfy that requirement. - doctrine/coding-standard[9.0.0, ..., 9.0.2] require php ^7.1 || ^8.0 -> your php version (5.6.40) does not satisfy that requirement. - Root composer.json requires doctrine/coding-standard ^9 || ^12.0 -> satisfiable by doctrine/coding-standard[9.0.0, 9.0.1, 9.0.2, 12.0.0].