I am trying to update my Guix package on Fedora Copr to 0.15.0, but I found many
tests fail when running 'make check'. The version of Guile is 2.0.14.

# TOTAL: 800
# PASS:  784
# SKIP:  10
# XFAIL: 0
# FAIL:  6
# XPASS: 0
# ERROR: 0

I attached test-suite.log and I hope it will be useful for debugging. It is a
large file (30 MB), so I compressed it with xz to avoid hitting size limit.