Just for the records: Looking a bit closer I saw that the failing tests in S03-operators/arith.t and S32-num/power.t (reported on 2013-06-03) where identical. Both test whether "1**Inf" equals 1.
Interestingly I got exactly those test failures on a current version of NetBSD (6.1.4): netbsd-6.1.4$ ./perl6-m -e "(1**Inf).say" NaN Last years OpenBSD also answered "NaN" (see above). A current version of OpenBSD (5.5) gives 1: openbsd-5.5$ ./perl6-m -e "(1**Inf).say" 1 I'm not sure how to interpret this difference. Maybe it's related to (differing/changing) functionalities of the operating system?