Fix printing of 'unknown stage' during crossStageCheck #1096

Job	Run time
emscripten	2m 2s
linux (clang, clang++, Debug)	1m 59s
iOS	1m 55s
linux (clang, clang++, Release)	1m 24s
android (ON)	1m 11s
Linux Backcompat	3m 11s
linux (gcc, g++, Debug)	7m 8s
android (OFF)	1m 29s
linux-asan (gcc, g++, Debug, -fsanitize=address)	3m 48s
linux (gcc, g++, Release)	1m 42s
linux-asan (gcc, g++, Debug, -fsanitize=thread)	8m 17s
linux-shared (clang, clang++, Release)	1m 27s
linux-asan (gcc, g++, Debug, -fsanitize=undefined)	3m 40s
macos (macos-14, clang, clang++, Debug)	4m 40s
linux-shared (gcc, g++, Release)	1m 52s
macos-shared (macos-14, clang, clang++, Release)	3m 34s
macos (macos-14, clang, clang++, Release)	3m 39s
macos (macos-14, gcc, g++, Debug)	7m 9s
windows (windows-2019, windows, Debug)	5m 1s
macos (macos-14, gcc, g++, Release)	3m 40s
windows-shared (windows-2019, windows, Debug)	3m 26s
windows (windows-2019, windows, Release)	5m 7s
macos (macos-13, clang, clang++, Debug)	14m 41s
windows-shared (windows-2019, windows, Release)	4m 57s
macos (macos-13, clang, clang++, Release)	11m 34s
macos (macos-13, gcc, g++, Debug)	13m 41s
macos (macos-13, gcc, g++, Release)	8m 59s
	2h 11m 13s

Provide feedback