From the log:
Submodule path 'scripts/i18n': checked out '02dfc2fd02e4d1372e1a48a83ab96187b62ec6e5' No submodule mapping found in .gitmodules for path 'core_stable' Failed to recurse into submodule path 'scripts/i18n' The command "eval git submodule update --init --recursive" failed. Retrying, 2 of 3. No submodule mapping found in .gitmodules for path 'core_stable' Failed to recurse into submodule path 'scripts/i18n' The command "eval git submodule update --init --recursive" failed. Retrying, 3 of 3. No submodule mapping found in .gitmodules for path 'core_stable' Failed to recurse into submodule path 'scripts/i18n' The command "eval git submodule update --init --recursive" failed 3 times. The command "git submodule update --init --recursive" failed and exited with 1 during . Your build has been stopped.