Inline::Perl5 installation error

[cjfields@cjfields-imac zef (master)]$ zef install Inline::Perl5
===> Searching for: Inline::Perl5
===> Searching for missing dependencies: File::Temp
===> Searching for missing dependencies: File::Directory::Tree
===> Building: Inline::Perl5:ver('0.15'):auth('github:niner')
===> Building [OK] for Inline::Perl5:ver('0.15'):auth('github:niner')
===> Testing: File::Directory::Tree:auth('labster')
t/basic.t .. ok
All tests successful.
Files=1, Tests=7,  0 wallclock secs
Result: PASS
===> Testing [OK] for File::Directory::Tree:auth('labster')
===> Testing: File::Temp
t/01-load.t ....... ok
t/02-stress_gc.t .. ok
t/03-tempfile.t ... ok
All tests successful.
Files=3, Tests=18,  1 wallclock secs
Result: PASS
===> Testing [OK] for File::Temp
===> Testing: Inline::Perl5:ver('0.15'):auth('github:niner')
t/argv.t ...................... ok
t/autoload.t .................. ok
t/call.t ...................... ok
t/call_back.t ................. ok
t/call_hash.t ................. ok
t/call_p6_function_from_p5.t .. ok
t/callables.t ................. ok
t/can.t ....................... ok
t/eval.t ...................... ok

# Failed test at t/eval_p6_in_p5.t line 9
# expected: '2'
#      got: (Any)
# Looks like you failed 1 test of 1
t/eval_p6_in_p5.t ............. Failed 1/1 subtests
t/eval_return_values.t ........ ok
t/exceptions.t ................ ok
t/file_handles.t .............. ok
t/from.t ...................... ok
t/globals.t ................... ok
t/import.t .................... ok
t/inherit.t ................... ok
t/invoke.t .................... ok
t/invoke_p6_method_from_p5.t ..1/?#   Failed test at (eval 6) line 6.
#          got: undef
#     expected: 'pos1barbaz'
# Looks like you failed 1 test of 3.
t/invoke_p6_method_from_p5.t .. Failed 1/3 subtests
t/modify_array.t .............. ok
t/modify_hash.t ............... ok
t/overload.t .................. ok
t/p5_to_p6.t .................. ok
t/p6_object_destructor.t ...... ok
t/p6_to_p5.t .................. ok
t/perl5package.t .............. ok
t/perl5parent.t ............... ok
t/shadow.t .................... ok
t/stringify.t ................. ok
t/use.t ....................... ok
t/use_nested.t ................ ok
t/v6.t ........................ ok

Test Summary Report
-------------------
t/eval_p6_in_p5.t  (Wstat: 0 Tests: 1 Failed: 1)
  Failed tests:  1
t/invoke_p6_method_from_p5.t (Wstat: 0 Tests: 3 Failed: 1)
  Failed tests:  3
Files=32, Tests=416,  13 wallclock secs
Result: FAILED
===> Testing [FAIL]: Inline::Perl5:ver('0.15'):auth('github:niner')
Aborting due to test failure: Inline::Perl5:ver('0.15'):auth('github:niner') (use --force to override)
  in code  at /Users/cjfields/.perl6/share/perl6/site/sources/1DC0BAA246D0774E7EB4F5119C6168E0D8266EFA (Zef::Client) line 306
  in method test at /Users/cjfields/.perl6/share/perl6/site/sources/1DC0BAA246D0774E7EB4F5119C6168E0D8266EFA (Zef::Client) line 285
  in code  at /Users/cjfields/.perl6/share/perl6/site/sources/1DC0BAA246D0774E7EB4F5119C6168E0D8266EFA (Zef::Client) line 456
  in sub  at /Users/cjfields/.perl6/share/perl6/site/sources/1DC0BAA246D0774E7EB4F5119C6168E0D8266EFA (Zef::Client) line 453
  in method install at /Users/cjfields/.perl6/share/perl6/site/sources/1DC0BAA246D0774E7EB4F5119C6168E0D8266EFA (Zef::Client) line 559
  in sub MAIN at /Users/cjfields/.perl6/share/perl6/site/sources/A9948E7371E0EB9AFDF1EEEB07B52A1B75537C31 (Zef::CLI) line 122
  in block <unit> at /Users/cjfields/.perl6/share/perl6/site/resources/3DD33EF601FD300095284AE7C24B770BAADAF32E line 1

[cjfields@cjfields-imac zef (master)]$ perl6 -v
This is Rakudo version 2016.11-163-g7511b43 built on MoarVM version 2016.11-41-gd2139b5
implementing Perl 6.c.

Perl version (from perlbrew):

[cjfields@cjfields-imac zef (master)]$ perl -v

This is perl 5, version 20, subversion 1 (v5.20.1) built for darwin-thread-multi-2level

Copyright 1987-2014, Larry Wall

Perl may be copied only under the terms of either the Artistic License or the
GNU General Public License, which may be found in the Perl 5 source kit.

Complete documentation for Perl, including FAQ lists, should be found on
this system using "man perl" or "perldoc perl".  If you have access to the
Internet, point your browser at http://www.perl.org/, the Perl Home Page.