Analyse following RPM build log snippet. Describe contents accurately, without speculation or suggestions for resolution.            
Your analysis must be as concise as possible, while keeping relevant information intact.
Snippet: 
+ for ff in case1 case2 case3
+ '[' '!' -f x86_64.case3 ']'
+ RPM_EC=1
++ jobs -p
+ exit 1
error: Bad exit status from /var/tmp/rpm-tmp.LZl7el (%check)

build check phase failed due to poor shell code