"XML syntax error" causing go get to fail.

[erjoalgo]

$ go get github.com/shadowsocks/shadowsocks-go/cmd/shadowsocks-server
package golang.org/x/sys/cpu: unrecognized import path "golang.org/x/sys/cpu" (parsing golang.org/x/sys/cpu: XML syntax error on line 9: expected /> in element)
package golang.org/x/crypto/blowfish: unrecognized import path "golang.org/x/crypto/blowfish" (parsing golang.org/x/crypto/blowfish: XML syntax error on line 9: expected /> in element)
package golang.org/x/crypto/cast5: unrecognized import path "golang.org/x/crypto/cast5" (parsing golang.org/x/crypto/cast5: XML syntax error on line 9: expected /> in element)
package golang.org/x/crypto/salsa20/salsa: unrecognized import path "golang.org/x/crypto/salsa20/salsa" (parsing golang.org/x/crypto/salsa20/salsa: XML syntax error on line 9: expected /> in element)
$ go version
go version go1.7.5 linux/amd64

[erjoalgo]

This error was not related to this project.