Can't install gems with Mastodon

[tenderlove]

I'm trying to use Gel with Mastodon, but gel install fails:

$ gel install
Installing microformats (4.4.1)
Installed 0 of 1 gems

Errors encountered with 1 gems:

microformats
  already installed



===== Gel Internal Error =====

/Users/aaron/git/gel/lib/gel/store.rb:51:in `block in add_gem': already installed (RuntimeError)
	from /Users/aaron/git/gel/vendor/pstore/lib/pstore.rb:333:in `block in transaction'
	from /Users/aaron/git/gel/vendor/pstore/lib/pstore.rb:332:in `catch'
	from /Users/aaron/git/gel/vendor/pstore/lib/pstore.rb:332:in `transaction'
	from /Users/aaron/git/gel/lib/gel/db.rb:211:in `writing'
	from /Users/aaron/git/gel/lib/gel/db.rb:158:in `writing'
	from /Users/aaron/git/gel/lib/gel/db.rb:79:in `block in writing'
	from /Users/aaron/git/gel/lib/gel/db.rb:76:in `synchronize'
	from /Users/aaron/git/gel/lib/gel/db.rb:76:in `writing'
	from /Users/aaron/git/gel/lib/gel/store.rb:49:in `add_gem'
	from /Users/aaron/git/gel/lib/gel/package/installer.rb:262:in `install'
	from /Users/aaron/git/gel/lib/gel/installer.rb:172:in `work_install'
	from /Users/aaron/git/gel/lib/gel/installer.rb:147:in `work_download'
	from /Users/aaron/git/gel/lib/gel/installer.rb:74:in `block (2 levels) in install_gem'
	from /Users/aaron/git/gel/lib/gel/work_pool.rb:62:in `block (4 levels) in start'
	from /Users/aaron/git/gel/lib/gel/work_pool.rb:47:in `loop'
	from /Users/aaron/git/gel/lib/gel/work_pool.rb:47:in `block (3 levels) in start'
	from /Users/aaron/git/gel/lib/gel/work_pool.rb:46:in `catch'
	from /Users/aaron/git/gel/lib/gel/work_pool.rb:46:in `block (2 levels) in start'

The Gemfile I'm using is here. I slightly modified the upstream Gemfile so I could use edge Ruby.

[tenderlove]

Also I'm using Gel version a396108

[matthewd]

Thanks!

I was able to reproduce this by just installing better_html on its own using edge ruby: it looks like the nokogiri platform / ruby-version compatibility combo isn't being handled correctly, at least when calculating immediate dependencies needed to build another dependant C-ext gem. 🤔