$ perl -wMstrict -E 'use open ()'
$ perl -wMstrict -E 'use if 1==1, open => ()'
open: needs explicit list of PerlIO layers at -e line 1.
BEGIN failed--compilation aborted at -e line 1.
$ perl -wMstrict -E 'use feature ()'
$ perl -wMstrict -E 'use if 1==1, feature => ()'
No features specified at -e line 1.
BEGIN failed--compilation aborted at -e line 1.
$ perl -wMstrict -E 'use List::Util ()'
$ perl -wMstrict -E 'use if 1==1, List::Util => ()'
Bareword "List::Util" not allowed while "strict subs" in use at -e line 1.
Execution of -e aborted due to compilation errors.