perl 5.010001: Can't locate object method "foo" via package "main" at -e line 6.
perl 5.012004: Can't locate object method "foo" via package "main" at -e line 6.
perl 5.014002: Can't locate object method "foo" via package "main" at -e line 6.
perl 5.016000: Can't locate object method "foo" via package "main" at -e line 6.