build.log for Fedora ruby ipv4 multicast errors

...
+ sleep 30
+ ip maddress
1:	lo
	inet  224.0.0.1
	inet6 ff02::1
	inet6 ff01::1
+ make test-all TESTS=rinda/test_rinda.rb
	CC = gcc
	LD = ld
	LDSHARED = gcc -shared
	CFLAGS = -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -mtune=generic -fPIC -m64
	XCFLAGS = -D_FORTIFY_SOURCE=2 -fstack-protector -fno-strict-overflow -fvisibility=hidden -fexcess-precision=standard -DRUBY_EXPORT
	CPPFLAGS =   -I. -I.ext/include/x86_64-linux -I./include -I. -I./enc/unicode/9.0.0
	DLDFLAGS = -Wl,-z,relro -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -m64 -Wl,-soname,libruby.so.2.4  -fstack-protector  -m64
	SOLIBS = -lpthread -ldl -lcrypt -lm  
gcc (GCC) 7.1.1 20170802 (Red Hat 7.1.1-7)
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Run options: "--ruby=./miniruby -I./lib -I. -I.ext/common  ./tool/runruby.rb --extout=.ext  -- --disable-gems" --excludes-dir=./test/excludes --name=!/memory_leak/
# Running tests:
Leaked file descriptor: Rinda::TestRingServer#test_ring_server_ipv4_multicast: 10 : #<Socket:fd 10>
Closed file descriptor: Rinda::TestRingServer#test_ring_server_ipv6_multicast: 10
  1) Error:
Rinda::TestRingFinger#test_make_socket_ipv4_multicast:
Errno::ENETUNREACH: Network is unreachable - connect(2) for 239.0.0.1:7647
    /builddir/build/BUILD/ruby-2.4.1/lib/rinda/ring.rb:431:in `connect'
    /builddir/build/BUILD/ruby-2.4.1/lib/rinda/ring.rb:431:in `make_socket'
    /builddir/build/BUILD/ruby-2.4.1/test/rinda/test_rinda.rb:802:in `test_make_socket_ipv4_multicast'
  2) Error:
Rinda::TestRingFinger#test_make_socket_ipv4_multicast_hops:
Errno::ENETUNREACH: Network is unreachable - connect(2) for 239.0.0.1:7647
    /builddir/build/BUILD/ruby-2.4.1/lib/rinda/ring.rb:431:in `connect'
    /builddir/build/BUILD/ruby-2.4.1/lib/rinda/ring.rb:431:in `make_socket'
    /builddir/build/BUILD/ruby-2.4.1/test/rinda/test_rinda.rb:819:in `test_make_socket_ipv4_multicast_hops'
  3) Error:
Rinda::TestRingServer#test_make_socket_ipv4_multicast:
Errno::ENODEV: No such device - setsockopt(2)
    /builddir/build/BUILD/ruby-2.4.1/lib/rinda/ring.rb:154:in `setsockopt'
    /builddir/build/BUILD/ruby-2.4.1/lib/rinda/ring.rb:154:in `make_socket'
    /builddir/build/BUILD/ruby-2.4.1/test/rinda/test_rinda.rb:646:in `test_make_socket_ipv4_multicast'
  4) Error:
Rinda::TestRingServer#test_ring_server_ipv4_multicast:
Errno::ENODEV: No such device - setsockopt(2)
    /builddir/build/BUILD/ruby-2.4.1/lib/rinda/ring.rb:154:in `setsockopt'
    /builddir/build/BUILD/ruby-2.4.1/lib/rinda/ring.rb:154:in `make_socket'
    /builddir/build/BUILD/ruby-2.4.1/lib/rinda/ring.rb:108:in `block in initialize'
    /builddir/build/BUILD/ruby-2.4.1/lib/rinda/ring.rb:106:in `each'
    /builddir/build/BUILD/ruby-2.4.1/lib/rinda/ring.rb:106:in `initialize'
    /builddir/build/BUILD/ruby-2.4.1/test/rinda/test_rinda.rb:687:in `new'
    /builddir/build/BUILD/ruby-2.4.1/test/rinda/test_rinda.rb:687:in `test_ring_server_ipv4_multicast'
Finished tests in 0.934559s, 41.7309 tests/s, 404.4688 assertions/s.
39 tests, 378 assertions, 0 failures, 4 errors, 4 skips
ruby -v: ruby 2.4.1p111 (2017-03-22 revision 58053) [x86_64-linux]
RPM build errors:
make: *** [uncommon.mk:623: yes-test-all] Error 4
error: Bad exit status from /var/tmp/rpm-tmp.q1SK2b (%check)
    Bad exit status from /var/tmp/rpm-tmp.q1SK2b (%check)
Child return code was: 1
EXCEPTION: [Error()]
Traceback (most recent call last):
  File "/usr/lib/python3.5/site-packages/mockbuild/trace_decorator.py", line 96, in trace
    result = func(*args, **kw)
  File "/usr/lib/python3.5/site-packages/mockbuild/util.py", line 590, in do
    raise exception.Error("Command failed: \n # %s\n%s" % (command, output), child.returncode)
mockbuild.exception.Error: Command failed: 
 # /usr/bin/systemd-nspawn -q -M f5fc152045b041a08a7acb350db2d837 -D /var/lib/mock/fedora-rawhide-x86_64/root -a --private-network --setenv=TERM=vt100 --setenv=PATH=/usr/bin:/bin:/usr/sbin:/sbin --setenv=HOME=/builddir --setenv=HOSTNAME=mock --setenv=PROMPT_COMMAND=printf "\033]0;<mock-chroot>\007" --setenv=LANG=en_US.UTF-8 --setenv=SHELL=/bin/bash --setenv=PS1=<mock-chroot> \s-\v\$  -u mockbuild bash --login -c /usr/bin/rpmbuild -bb --target x86_64 --nodeps /builddir/build/SPECS/ruby.spec