If backtrace is missing, don't print it.
If backtrace is missing, don't print it.

SkySkimmer/coq,coq/coq,coq/coq,coq/coq,Matafou/coq,ejgallego/coq,ejgallego/coq,Zimmi48/coq,JasonGross/coq,silene/coq,ejgallego/coq,Matafou/coq,gares/coq,Zimmi48/coq,JasonGross/coq,SkySkimmer/coq,Matafou/coq,JasonGross/coq,SkySkimmer/coq,coq/coq,SkySkimmer/coq,gares/coq,ejgallego/coq,silene/coq,gares/coq,silene/coq,Zimmi48/coq,Zimmi48/coq,gares/coq,JasonGross/coq,gares/coq