New comment by emacsomancer on void-packages repository

https://github.com/void-linux/void-packages/pull/21131#issuecomment-616168998

Comment:
> `xbps-src check` segfault.

This is odd, because while

`xbps-src check` does produce one failure:
```
.....
make[1]: Entering directory '/builddir/mu-1.4/lib'
make  check-recursive
make[2]: Entering directory '/builddir/mu-1.4/lib'
Making check in utils
make[3]: Entering directory '/builddir/mu-1.4/lib/utils'
make  check-TESTS
make[3]: Leaving directory '/builddir/mu-1.4/lib/utils'
make[2]: Leaving directory '/builddir/mu-1.4/lib'
make[1]: Leaving directory '/builddir/mu-1.4/lib'
Making check in m4
make[1]: Entering directory '/builddir/mu-1.4/m4'
make[1]: Nothing to be done for 'check'.
make[1]: Leaving directory '/builddir/mu-1.4/m4'
Making check in man
make[1]: Entering directory '/builddir/mu-1.4/man'
make[1]: Nothing to be done for 'check'.
make[1]: Leaving directory '/builddir/mu-1.4/man'
Making check in lib
make[1]: Entering directory '/builddir/mu-1.4/lib'
make  check-recursive
make[2]: Entering directory '/builddir/mu-1.4/lib'
Making check in utils
make[3]: Entering directory '/builddir/mu-1.4/lib/utils'
make  check-TESTS
make[4]: Entering directory '/builddir/mu-1.4/lib/utils'
make[5]: Entering directory '/builddir/mu-1.4/lib/utils'
PASS: test-mu-util
../../build-aux/test-driver: line 107: 20588 Aborted                 "$@" > $log_file 2>&1
FAIL: test-mu-utils
PASS: test-mu-str
PASS: test-sexp-parser
PASS: test-command-parser
============================================================================
Testsuite summary for mu 1.4
============================================================================
# TOTAL: 5
# PASS:  4
# SKIP:  0
# XFAIL: 0
# FAIL:  1
# XPASS: 0
# ERROR: 0
============================================================================
.....
```

Building it by hand on Void and running `make check` passes everything:

```
....
make[5]: Entering directory '/home/slade/Documents/sourcecode/mu/lib/utils'
PASS: test-mu-util
PASS: test-mu-utils
PASS: test-mu-str
PASS: test-sexp-parser
PASS: test-command-parser
============================================================================
Testsuite summary for mu 1.4
============================================================================
# TOTAL: 5
# PASS:  5
# SKIP:  0
# XFAIL: 0
# FAIL:  0
# XPASS: 0
# ERROR: 0
============================================================================
...
```

The package itself seems to work fine as far as I can tell - I've been using it extensively since yesterday.  Maybe related to https://github.com/djcb/mu/issues/1187 ?