export GOBIN=/syzkaller/bin; go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen
gmake .descriptions
gmake[1]: Entering directory '/syzkaller/gopath/src/github.com/google/syzkaller'
gmake[1]: *** No rule to make target 'bin/syz-sysgen', needed by '.descriptions'.  Stop.
gmake[1]: Leaving directory '/syzkaller/gopath/src/github.com/google/syzkaller'
gmake: *** [Makefile:140: descriptions] Error 2