Mercurial errors when installing dependencies

Depman Version 2.9.4 [19/1939]
Installing:
| lrucache (2c00de6812e8a48d37dacba0b0494e5f2bc5e7e3)
| robotstxt-go (961a)
| goquery (a3fdc62e311a44c5199b0ef323ee5e056c527ef1) *
| $ go get -u github.com/PuerkitoBio/goquery
| cd /home/user/gopath/src/code.google.com/p/cascadia; hg pull
abort: requirement 'dotencode' not supported!
package github.com/PuerkitoBio/goquery
imports code.google.com/p/cascadia: exit status 255
cd /home/user/gopath/src/code.google.com/p/go.net; hg pull
abort: requirement 'dotencode' not supported!
package github.com/PuerkitoBio/goquery
imports code.google.com/p/go.net/html: exit status 255

[nicholascapo]

Thank you for the bug report. :-)

Can you attach your deps.json?

Also, are you using any Mercurial extensions, or custom configs?

[nicholascapo]

This may also be a problem with your mercurial version.
See: http://mercurial.selenic.com/wiki/RequiresFile#Older_Mercurial_versions