Description of problem:
This occured during yum upgrade; not sure what docker was trying to do here.
Can't tell if I'll be able to reproduce it.
SELinux is preventing docker from 'getattr' accesses on the directory /etc/mplayer.

*****  Plugin catchall (100. confidence) suggests   **************************

If you believe that docker should be allowed getattr access on the mplayer directory by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# grep docker /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:docker_t:s0
Target Context                system_u:object_r:mplayer_etc_t:s0
Target Objects                /etc/mplayer [ dir ]
Source                        docker
Source Path                   docker
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           mplayer-common-1.1-32.20150123svn.fc21.x86_64
                              mplayer-common-1.1-33.20150211svn.fc21.x86_64
Policy RPM                    selinux-policy-3.13.1-105.13.fc21.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 3.19.5-200.fc21.x86_64 #1 SMP Mon
                              Apr 20 19:51:56 UTC 2015 x86_64 x86_64
Alert Count                   1
First Seen                    2015-05-14 07:33:36 CEST
Last Seen                     2015-05-14 07:33:36 CEST
Local ID                      699f9a48-83aa-4983-9c43-66092f4be05a

Raw Audit Messages
type=AVC msg=audit(1431581616.973:1022): avc:  denied  { getattr } for  pid=6133 comm="docker" path="/etc/mplayer" dev="dm-2" ino=2884811 scontext=system_u:system_r:docker_t:s0 tcontext=system_u:object_r:mplayer_etc_t:s0 tclass=dir permissive=1


Hash: docker,docker_t,mplayer_etc_t,dir,getattr

Version-Release number of selected component:
selinux-policy-3.13.1-105.13.fc21.noarch

Additional info:
reporter:       libreport-2.3.0
hashmarkername: setroubleshoot
kernel:         3.19.5-200.fc21.x86_64
type:           libreport