make: "varmod-range.mk" line 53: Invalid number "x}Rest" != "Rest"" for ':range' modifier
make: "varmod-range.mk" line 53: Malformed conditional ("${:U:range=x}Rest" != "Rest")
make: "varmod-range.mk" line 62: Unknown modifier "x0"
make: "varmod-range.mk" line 62: Malformed conditional ("${:U:range=0x0}Rest" != "Rest")
make: "varmod-range.mk" line 78: Unknown modifier "rang"
make: "varmod-range.mk" line 78: Malformed conditional ("${a b c:L:rang}Rest" != "Rest")
make: "varmod-range.mk" line 85: Unknown modifier "rango"
make: "varmod-range.mk" line 85: Malformed conditional ("${a b c:L:rango}Rest" != "Rest")
make: "varmod-range.mk" line 92: Unknown modifier "ranger"
make: "varmod-range.mk" line 92: Malformed conditional ("${a b c:L:ranger}Rest" != "Rest")
make: Fatal errors encountered -- cannot continue
make: stopped in unit-tests
exit status 1