*** Error in `/opt/rakudo-pkg/bin/moar': free(): invalid pointer: 0x00007fffea2450f8 ***                                                                                                             ======= Backtrace: =========                                                                                                                                                                         /lib/x86_64-linux-gnu/libc.so.6(+0x70bfb)[0x7f1ea2170bfb]                                                                                                                                            /lib/x86_64-linux-gnu/libc.so.6(+0x76fc6)[0x7f1ea2176fc6]                                                                                                                                            /lib/x86_64-linux-gnu/libc.so.6(+0x7780e)[0x7f1ea217780e]                                                                                                                                            //opt/rakudo-pkg/lib/libmoar.so(MVM_jit_code_destroy+0x22)[0x7f1ea27774d2]                                                                                                                           //opt/rakudo-pkg/lib/libmoar.so(+0x22b030)[0x7f1ea26cb030]                                                                                                                                           //opt/rakudo-pkg/lib/libmoar.so(MVM_gc_collect_free_gen2_unmarked+0x1ae)[0x7f1ea26ae86e]                                                                                                             //opt/rakudo-pkg/lib/libmoar.so(+0x20a07a)[0x7f1ea26aa07a]                                                                                                                                           //opt/rakudo-pkg/lib/libmoar.so(MVM_gc_enter_from_allocator+0x365)[0x7f1ea26aaa05]                                                                                                                   //opt/rakudo-pkg/lib/libmoar.so(MVM_gc_allocate_nursery+0x38)[0x7f1ea26aac38]                                                                                                                        //opt/rakudo-pkg/lib/libmoar.so(MVM_gc_allocate_frame+0xe)[0x7f1ea26aaf0e]                                                                                                                           //opt/rakudo-pkg/lib/libmoar.so(+0x1e76bc)[0x7f1ea26876bc]                                                                                                                                           //opt/rakudo-pkg/lib/libmoar.so(MVM_frame_invoke+0x171)[0x7f1ea26878a1]                                                                                                                              //opt/rakudo-pkg/lib/libmoar.so(+0x22f573)[0x7f1ea26cf573]                                                                                                                                           //opt/rakudo-pkg/lib/libmoar.so(MVM_interp_run+0x1cd8)[0x7f1ea266e448]                                                                                                                               //opt/rakudo-pkg/lib/libmoar.so(+0x1ef316)[0x7f1ea268f316]                                                                                                                                           /lib/x86_64-linux-gnu/libpthread.so.0(+0x7494)[0x7f1ea1bd7494]                                                                                                                                       /lib/x86_64-linux-gnu/libc.so.6(clone+0x3f)[0x7f1ea21e8acf]