Error running the tests on ppc64le

Any pointers/help on how to fix the failed tests.

Error log:-
[root@pts00450-vm1 echo-nginx-module-0.61]# cat t/servroot/logs/error.log
2019/09/27 17:36:34 [notice] 29395#0: using the "epoll" event method
2019/09/27 17:36:34 [notice] 29395#0: openresty/1.17.1.1rc0
2019/09/27 17:36:34 [notice] 29395#0: built by gcc 4.8.5 20150623 (Red Hat 4.8.5-39) (GCC)
2019/09/27 17:36:34 [notice] 29395#0: OS: Linux 3.10.0-957.27.2.el7.ppc64le
2019/09/27 17:36:34 [notice] 29395#0: getrlimit(RLIMIT_NOFILE): 1024:4096
2019/09/27 17:36:35 [notice] 29396#0: signal 15 (SIGTERM) received from 29389, exiting
2019/09/27 17:36:35 [notice] 29396#0: signal 3 (SIGQUIT) received from 29389, shutting down
2019/09/27 17:36:35 [info] 29396#0: epoll_wait() failed (4: Interrupted system call)
2019/09/27 17:36:35 [notice] 29396#0: exiting
2019/09/27 17:36:35 [notice] 29396#0: exit

[root@pts00450-vm1 echo-nginx-module-0.61]# nginx -v
nginx version: openresty/1.17.1.1rc0
[root@pts00450-vm1 echo-nginx-module-0.61]#

Detailed error:
[root@pts00450-vm1 echo-nginx-module-0.61]# prove -r t/
t/abort-parent.t ...... skipped: not working at all
t/blocking-sleep.t .... ok
t/echo-after-body.t ... ok
t/echo-before-body.t .. ok
t/echo-duplicate.t .... ok
t/echo-timer.t ........ ok
t/echo.t .............. ok
t/exec.t .............. ok
t/filter-used.t ....... ok
t/foreach-split.t ..... ok
t/gzip.t .............. ok
t/if.t ................ ok
t/incr.t .............. ok
t/location-async.t .... 33/90
Failed test 'TEST 16: unsafe uri - pattern "echo_location_async sees unsafe uri: "/../foo"" should match a line in error.log (req 0)'
at /usr/local/share/perl5/Test/Nginx/Socket.pm line 1213.

Failed test 'TEST 16: unsafe uri - pattern "echo_location_async sees unsafe uri: "/../foo"" should match a line in error.log (req 1)'
at /usr/local/share/perl5/Test/Nginx/Socket.pm line 1213.
t/location-async.t .... 79/90 # Looks like you failed 2 tests of 90.
t/location-async.t .... Dubious, test returned 2 (wstat 512, 0x200)
Failed 2/90 subtests
t/location.t .......... 53/96
Failed test 'TEST 14: unsafe uri - pattern "echo_location sees unsafe uri: "/../foo"" should match a line in error.log (req 0)'
at /usr/local/share/perl5/Test/Nginx/Socket.pm line 1213.

Failed test 'TEST 14: unsafe uri - pattern "echo_location sees unsafe uri: "/../foo"" should match a line in error.log (req 1)'
at /usr/local/share/perl5/Test/Nginx/Socket.pm line 1213.
t/location.t .......... 75/96 # Looks like you failed 2 tests of 96.
t/location.t .......... Dubious, test returned 2 (wstat 512, 0x200)
Failed 2/96 subtests
t/mixed.t ............. ok
t/request-body.t ...... ok
t/request-info.t ...... ok
t/sleep.t ............. ok
t/status.t ............ ok
t/subrequest-async.t .. 5/118
Failed test 'TEST 20: unsafe uri - pattern "echo_subrequest_async sees unsafe uri: "/../foo"" should match a line in error.log (req 0)'
at /usr/local/share/perl5/Test/Nginx/Socket.pm line 1213.
t/subrequest-async.t .. 28/118
Failed test 'TEST 20: unsafe uri - pattern "echo_subrequest_async sees unsafe uri: "/../foo"" should match a line in error.log (req 1)'
at /usr/local/share/perl5/Test/Nginx/Socket.pm line 1213.
t/subrequest-async.t .. 99/118 # Looks like you failed 2 tests of 118.
t/subrequest-async.t .. Dubious, test returned 2 (wstat 512, 0x200)
Failed 2/118 subtests
t/subrequest.t ........ 113/130
Failed test 'TEST 19: unsafe uri - pattern "echo_subrequest sees unsafe uri: "/../foo"" should match a line in error.log (req 0)'
at /usr/local/share/perl5/Test/Nginx/Socket.pm line 1213.

Failed test 'TEST 19: unsafe uri - pattern "echo_subrequest sees unsafe uri: "/../foo"" should match a line in error.log (req 1)'
at /usr/local/share/perl5/Test/Nginx/Socket.pm line 1213.
Looks like you failed 2 tests of 130.
t/subrequest.t ........ Dubious, test returned 2 (wstat 512, 0x200)
Failed 2/130 subtests
t/unused.t ............ 1/20
Failed test 'TEST 1: filters used - pattern "echo header filter, uri "/echo?blah"" should match a line in error.log (req 0)'
at /usr/local/share/perl5/Test/Nginx/Socket.pm line 1213.

Failed test 'TEST 1: filters used - pattern "echo body filter, uri "/echo?blah"" should match a line in error.log (req 0)'
at /usr/local/share/perl5/Test/Nginx/Socket.pm line 1213.

Failed test 'TEST 1: filters used - pattern "echo header filter, uri "/echo?blah"" should match a line in error.log (req 1)'
at /usr/local/share/perl5/Test/Nginx/Socket.pm line 1213.

Failed test 'TEST 1: filters used - pattern "echo body filter, uri "/echo?blah"" should match a line in error.log (req 1)'
at /usr/local/share/perl5/Test/Nginx/Socket.pm line 1213.
t/unused.t ............ 11/20 # Looks like you failed 4 tests of 20.
t/unused.t ............ Dubious, test returned 4 (wstat 1024, 0x400)
Failed 4/20 subtests

Start by rerunning prove -r t/ on the ppc64le environment and inspect the failures in t/location-async.t, t/location.t, t/subrequest-async.t, t/subrequest.t, and t/unused.t alongside t/servroot/logs/error.log. Determine the cause of the missing expected log lines and make the affected tests pass without regressing the other tests.