Build fails on Rakudo 2017.3-232-gfbc6697

[CurtTilmes]

$ perl6 --version
This is Rakudo version 2017.03-232-gfbc6697 built on MoarVM version 2017.03-128-gc9ab59c
===> Testing: Template::Mustache:auth('github:softmoth')
t/01-basic.t ....... ok
t/02-file.t ........ ok
t/03-cascade.t .....1/5
# Failed test 'Inline partial can get filesystem partial'
# at t/03-cascade.t line 56
# expected: 'Say Hello, Jimmy.
# , and find me a Hello, Jimmy.
# '
#      got: 'Say , and find me a '
# Looks like you failed 1 test of 5
t/03-cascade.t ..... Failed 1/5 subtests 
t/04-lambda.t ...... ok
t/05-promise.t ..... ok
t/10-objects.t ..... ok
t/50-readme.t ...... ok
# Reading spec files from '../mustache-spec/specs'
t/91-specs.t ....... ok
# Reading spec files from '../mustache-spec/specs'
t/92-specs-file.t .. ok
Test Summary Report
-------------------
t/03-cascade.t  (Wstat: 0 Tests: 5 Failed: 1)
  Failed tests:  5
Files=9, Tests=28,  5 wallclock secs
Result: FAILED
===> Testing [FAIL]: Template::Mustache:auth('github:softmoth')