Gem faster_path built by thermite trying to load a dylib file from user travis instead of current user

[PikachuEXE]

I am testing gem faster_path without installing rust
https://github.com/danielpclark/faster_path/issues/143

When using ruby 2.5.0 I got an error when requiring faster_path
It looks like the gem is trying to load a /Users/travis/.rvm/rubies/ruby-2.5.0/lib/libruby.2.5.dylib
But it should be loading /users/pikachuexe/.rvm/rubies/ruby-2.5.0/lib/libruby.2.5.dylib
No error occur in other ruby versions though

Error message and other details:
danielpclark/faster_path#143 (comment)

[malept]

Hmmm. This shouldn't happen due to

thermite/lib/thermite/package.rb

Lines 60 to 67 in acde6dd

	def prepare_downloaded_library
	return unless config.target_os.start_with?('darwin')
	libruby_path = Shellwords.escape(config.libruby_path)
	library_path = Shellwords.escape(config.ruby_extension_path)
	`install_name_tool -id #{library_path} #{library_path}`
	`install_name_tool -change @libruby_path@ #{libruby_path} #{library_path}`
	end

(when the tarball is created) and

thermite/lib/thermite/package.rb

Lines 87 to 93 in acde6dd

	def prepare_built_library
	return unless config.target_os.start_with?('darwin')
	libruby_path = Shellwords.escape(config.libruby_path)
	library_path = Shellwords.escape(config.ruby_extension_path)
	`install_name_tool -change #{libruby_path} @libruby_path@ #{library_path}`
	end

(when the Rust extension is installed locally). I'd have to test on a Mac with Ruby 2.5, although I'm not sure when I'd have time.

[PikachuEXE]

Is possible to output some logging to debug this situation?
And check the difference of logs between ruby 2.5 and other ruby versions

[malept]

Installing gems makes it very irritating to log things to stdout/stderr, so there's an environment variable you can set.

[PikachuEXE]

2.3.6

Unpacking GitHub release from Cargo version: faster_path-0.0.1-ruby2.3.6-darwin16-x86_64.tar.gz
Unpacking file: lib/faster_path.so

2.4.3

Unpacking GitHub release from Cargo version: faster_path-0.0.1-ruby2.4.3-darwin16-x86_64.tar.gz
Unpacking file: lib/faster_path.so

2.5.0

Unpacking GitHub release from Cargo version: faster_path-0.0.1-ruby2.5.0-darwin16-x86_64.tar.gz
Unpacking file: lib/faster_path.so

[malept]

Looks like it needs more debug logging.

[danielpclark]

The patches for steveklabnik/ruby-sys#31 and d-unsed/ruru#95 make this issue go away. That's not to say this issue still isn't possible for others who still keep using the older version.