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I re-tried now it gives following

mkdir -p .build/image/ccenv/payload
cp .build/docker/gotools/bin/protoc-gen-go .build/bin/chaintool .build/goshim.tar.bz2 .build/image/ccenv/payload
cp: cannot stat ‘.build/docker/gotools/bin/protoc-gen-go’: No such file or directory
Makefile:278: recipe for target ‘.build/image/ccenv/payload’ failed
make: *** [.build/image/ccenv/payload] Error 1