`go-licenses csv "github.com/google/trillian/server/trillian_log_server"` gives me empty result about go-licenses HOT 2 CLOSED

$ go-licenses csv "github.com/google/trillian/server/trillian_log_server"
Error: errors for ["github.com/google/trillian/server/trillian_log_server"]:
github.com/google/trillian/server/trillian_log_server: -: no required module provides package github.com/google/trillian/server/trillian_log_server; to add it:
        go get github.com/google/trillian/server/trillian_log_server

$ go get github.com/google/trillian/server/trillian_log_server
go: downloading github.com/google/trillian v1.4.0
go get: module github.com/google/trillian@upgrade found (v1.4.0), but does not contain package github.com/google/trillian/server/trillian_log_server

$ go-licenses csv "github.com/google/trillian/server/trillian_log_server"
Error: errors for ["github.com/google/trillian/server/trillian_log_server"]:
github.com/google/trillian/server/trillian_log_server: -: no required module provides 
package github.com/google/trillian/server/trillian_log_server; to add it:
        go get github.com/google/trillian/server/trillian_log_server

$ go version
go version go1.17.2 linux/amd64