go getでinstallできない

[tarr1124]

go getでinstallできませんでした。

go get -u github.com/timakin/ts                                                                                                                                                                  水  3/ 7 10:37:36 2018
# cd .; git clone https://github.com/jteeuwen/go-pkg-rss /Users/takahiro.tokunaga/workspace/go/src/github.com/jteeuwen/go-pkg-rss
Cloning into '/Users/takahiro.tokunaga/workspace/go/src/github.com/jteeuwen/go-pkg-rss'...
remote: Repository not found.
fatal: repository 'https://github.com/jteeuwen/go-pkg-rss/' not found
package github.com/jteeuwen/go-pkg-rss: exit status 128