Fix for backup exception boxing
Fix for backup exception boxing

behnamm/cs244b_project,DavidLi2010/ramcloud,utah-scs/RAMCloud,y-higuchi/ramcloud,IMCG/RamCloud,taschik/ramcloud-load-manager,y-higuchi/ramcloud,SMatsushi/RAMCloud,anirajk/RAMCloud,SMatsushi/RAMCloud,y-higuchi/ramcloud,QingkaiLu/RAMCloud,matrix207/RAMCloud,anirajk/RAMCloud,jcarreira/ramcloud,behnamm/cs244b_project,QingkaiLu/RAMCloud,DavidLi2010/ramcloud,jblomer/ramcloud,QingkaiLu/RAMCloud,QingkaiLu/RAMCloud,alexandermerritt/ramcloud,anirajk/RAMCloud,Frank-Wu/RamCloud,Frank-Wu/RamCloud,rstutsman/RAMCloud,mrdiegoa/ramcloud,mrdiegoa/ramcloud,rstutsman/RAMCloud,utah-scs/RAMCloud,anirajk/RAMCloud,rstutsman/RAMCloud,SMatsushi/RAMCloud,taschik/ramcloud,jcarreira/ramcloud,behnamm/cs244b_project,alexandermerritt/ramcloud,IMCG/RamCloud,rstutsman/RAMCloud,QingkaiLu/RAMCloud,alexandermerritt/ramcloud,jblomer/ramcloud,jblomer/ramcloud,matrix207/RAMCloud,Frank-Wu/RamCloud,taschik/ramcloud-load-manager,behnamm/cs244b_project,behnamm/cs244b_project,behnamm/cs244b_project,y-higuchi/ramcloud,utah-scs/RAMCloud,taschik/ramcloud-load-manager,y-higuchi/ramcloud,jcarreira/ramcloud,DavidLi2010/ramcloud,jblomer/ramcloud,jcarreira/ramcloud,IMCG/RamCloud,alexandermerritt/ramcloud,IMCG/RamCloud,DavidLi2010/ramcloud,utah-scs/RAMCloud,matrix207/RAMCloud,rstutsman/RAMCloud,alexandermerritt/ramcloud,jcarreira/ramcloud,anirajk/RAMCloud,anirajk/RAMCloud,Frank-Wu/RamCloud,SMatsushi/RAMCloud,alexandermerritt/ramcloud,DavidLi2010/ramcloud,QingkaiLu/RAMCloud,taschik/ramcloud,utah-scs/RAMCloud,Frank-Wu/RamCloud,mrdiegoa/ramcloud,taschik/ramcloud,Frank-Wu/RamCloud,SMatsushi/RAMCloud,matrix207/RAMCloud,jblomer/ramcloud,taschik/ramcloud,mrdiegoa/ramcloud,mrdiegoa/ramcloud,rstutsman/RAMCloud,utah-scs/RAMCloud,taschik/ramcloud-load-manager,SMatsushi/RAMCloud,matrix207/RAMCloud,IMCG/RamCloud,mrdiegoa/ramcloud,matrix207/RAMCloud,taschik/ramcloud-load-manager,IMCG/RamCloud,y-higuchi/ramcloud,jcarreira/ramcloud,jblomer/ramcloud,taschik/ramcloud,DavidLi2010/ramcloud