make: varmod-mtime.mk:46: Invalid argument '123x' for modifier ':mtime'
	while evaluating variable "no/such/file" with value "no/such/file"
make: varmod-mtime.mk:68: Cannot determine mtime for 'no/such/file1': <ENOENT>
	while evaluating variable "no/such/file1 no/such/file2" with value "no/such/file1 no/such/file2"
make: varmod-mtime.mk:68: Cannot determine mtime for 'no/such/file2': <ENOENT>
	while evaluating variable "no/such/file1 no/such/file2" with value "no/such/file1 no/such/file2"
make: varmod-mtime.mk:78: Invalid argument 'errorhandler-no' for modifier ':mtime'
	while evaluating variable "MAKEFILE" with value "varmod-mtime.mk"
make: varmod-mtime.mk:86: Invalid argument 'warn' for modifier ':mtime'
	while evaluating variable "MAKEFILE" with value "varmod-mtime.mk"
make: varmod-mtime.mk:110: Unknown modifier ":mtim"
	while evaluating variable "anything" with value "anything"
make: Fatal errors encountered -- cannot continue
make: stopped in unit-tests
exit status 1