alt/base_as_notnull_alt5.nit:41,6: Warning: 'as(not null)' on non nullable type. alt/base_as_notnull_alt5.nit:42,6--7: Warning: 'as(not null)' on non nullable type. alt/base_as_notnull_alt5.nit:43,6: Warning: 'as(not null)' on non nullable type. alt/base_as_notnull_alt5.nit:52,6: Warning: 'as(not null)' on non nullable type. Runtime error: Cast failed (alt/base_as_notnull_alt5.nit:59) 1 2 3 4 5 6 3 6