+crypto_path=src/cypherpunks.ru/gogost/vendor/golang.org/x/crypto
+mkdir -p $crypto_path
+( cd $cur/gopath/pkg/mod/golang.org/x/crypto@v0.0.0-20190701094942-4def268fd1a4 ; \
+ tar cf - AUTHORS CONTRIBUTORS LICENSE PATENTS README.md pbkdf2 hkdf ) |
+ tar xfC - $crypto_path
+