-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -fasynchronous-unwind-tables -fstack-clash-protection -I/usr/lib64/gfortran/modules'
+ export FFLAGS
+ FCFLAGS='-O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -fasynchronous-unwind-tables -fstack-clash-protection -I/usr/lib64/gfortran/modules'
+ export FCFLAGS
+ LDFLAGS='-Wl,-z,relro  -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld'
+ export LDFLAGS
+ VSN=2.5.3
+ export VSN
+ REBAR_VSN_CACHE_FILE=/builddir/build/BUILD/riak-erlang-client-2.5.3/vsn.cache
+ export REBAR_VSN_CACHE_FILE
+ echo '{{git, "/builddir/build/BUILD/riak-erlang-client-2.5.3"}, "2.5.3"}.'
+ REBAR_DEPS_PREFER_LIBS=TRUE
+ export REBAR_DEPS_PREFER_LIBS
+ IGNORE_MISSING_DEPS=TRUE
+ export IGNORE_MISSING_DEPS
+ ERL_LIBS=/usr/share/erlang/lib/
+ export ERL_LIBS
+ /usr/bin/rebar compile skip_deps=true -vv
DEBUG: Evaluating config script "/builddir/build/BUILD/riak-erlang-client-2.5.3/rebar.config.script"
DEBUG: Consult config file "/builddir/build/BUILD/riak-erlang-client-2.5.3/rebar.config"
DEBUG: Rebar location: "/usr/bin/rebar"
DEBUG: Consult config file "/builddir/build/BUILD/riak-erlang-client-2.5.3/src/riakc.app.src"
DEBUG: is_app_available, looking for App riak_pb with Path "/builddir/build/BUILD/riak-erlang-client-2.5.3/deps/riak_pb"
DEBUG: Directory expected to be an app dir, but it doesn't exist (yet?):
/builddir/build/BUILD/riak-erlang-client-2.5.3/deps/riak_pb
DEBUG: is_app_available, looking for App riak_pb with Path "/usr/lib64/erlang/lib/riak_pb-2.3.2"
INFO:  Looking for riak_pb-2.3.[0-9]+ ; found riak_pb-2.3.2 at /usr/lib64/erlang/lib/riak_pb-2.3.2
DEBUG: Available deps: [{dep,"/usr/lib64/erlang/lib/riak_pb-2.3.2",riak_pb,
                             "2.3.[0-9]+",
                             {git,"https://github.com/basho/riak_pb",
                                  {tag,"2.3.2"}},
                             false}]
DEBUG: Missing deps  : []
DEBUG: is_app_available, looking for App riak_pb with Path "/usr/lib64/erlang/lib/riak_pb-2.3.2"
INFO:  Looking for riak_pb-2.3.[0-9]+ ; found riak_pb-2.3.2 at /usr/lib64/erlang/lib/riak_pb-2.3.2
DEBUG: Adding /usr/lib64/erlang/lib/riak_pb-2.3.2/ebin to code path
DEBUG: Adding skip dir: /usr/lib64/erlang/lib/riak_pb-2.3.2
DEBUG: Associate sub_dir /usr/lib64/erlang/lib/riak_pb-2.3.2 with /builddir/build/BUILD/riak-erlang-client-2.5.3
DEBUG: Plugins requested while processing /builddir/build/BUILD/riak-erlang-client-2.5.3: []
DEBUG: Predirs: ["/usr/lib64/erlang/lib/riak_pb-2.3.2"]
DEBUG: Consult config file "/usr/lib64/erlang/lib/riak_pb-2.3.2/rebar.config"
DEBUG: Available deps: []
DEBUG: Missing deps  : []
DEBUG: Plugins requested while processing /usr/lib64/erlang/lib/riak_pb-2.3.2: []
DEBUG: Predirs: []
INFO:  Skipping compile in /usr/lib64/erlang/lib/riak_pb-2.3.2
DEBUG: Postdirs: []
==> riak-erlang-client-2.5.3 (compile)
DEBUG: Matched required ERTS version: 9.3.1 -> .*
BUILDSTDERR: ERROR: OTP release 20 does not match required regex R15|R16|17|18|19
BUILDSTDERR: ERROR: compile failed while processing /builddir/build/BUILD/riak-erlang-client-2.5.3: rebar_abort
RPM build errors:
BUILDSTDERR: error: Bad exit status from /var/tmp/rpm-tmp.MHzoRp (%build)
BUILDSTDERR:     Bad exit status from /var/tmp/rpm-tmp.MHzoRp (%build)
Child return code was: 1
EXCEPTION: [Error()]
Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/mockbuild/trace_decorator.py", line 96, in trace
    result = func(*args, **kw)
  File "/usr/lib/python3.6/site-packages/mockbuild/util.py", line 626, in do
    raise exception.Error("Command failed: \n # %s\n%s" % (command, output), child.returncode)
mockbuild.exception.Error: Command failed: 
 # bash --login -c /usr/bin/rpmbuild -bb --target riscv64 --nodeps /builddir/build/SPECS/erlang-riak_client.spec