Doesn't work with lib-pthreadpool

/home/tspits/workspace/libs/lib-pthreadpool
/home/tspits/Documents/unikraft-library-symbols-extractor/build/libpthreadpool//github.com/Maratyszcza/pthreadpool/archive/76042155a8b1e189c8f141429fd72219472c32e1.zip: No such file or directory
	zip warning: /home/tspits/Documents/unikraft-library-symbols-extractor/build/libpthreadpool/origin.zip not found or empty
	zip warning: name not matched: /home/tspits/Documents/unikraft-library-symbols-extractor/build/libpthreadpool//github.com/Maratyszcza/pthreadpool/archive/76042155a8b1e189c8f141429fd72219472c32e1.zip

zip error: Nothing to do! (/home/tspits/Documents/unikraft-library-symbols-extractor/build/libpthreadpool/origin.zip)
parse error: Invalid numeric literal at line 1, column 7