Given following log snippets, their explanation, and nothing else, explain what failure, if any, occurred during build of this package.

  Snippets are in a format of [X] : [Y], where [X] is a log snippet, and [Y] is the explanation.

  Snippets are delimited with '================'.

  Drawing on information from all snippets, provide a concise explanation of the issue and recommend a solution.

  Explanation of the issue, and recommended solution, should take a handful of sentences.

  Snippets:

  [+ ruby -Ilib test/test_async.rb
test/test_async.rb:28:in `<main>': uninitialized constant MiniTest (NameError)

class TestSinatraAsync < MiniTest::Unit::TestCase
                         ^^^^^^^^
Did you mean?  Minitest
]: [File and Line: The error originated in the file test/test_async.rb on line 28.
Uninitialized Constant: The Ruby interpreter encountered a reference to the MiniTest constant, but it wasn't defined. This means the necessary library or gem isn't included in the build environment.
Missing Dependency: The MiniTest library is a popular testing framework for Ruby. Its absence suggests that the gem's dependencies aren't correctly configured or aren't available during the build process.]

Issue: The error message also provides a helpful suggestion: "Did you mean? Minitest". This indicates that the interpreter thinks you might have meant Minitest instead of MiniTest::Unit::TestCase. While the latter is a more specific class, it's often used within the context of Minitest.
Resolution: Check Gemfile:
Ensure that minitest is listed as a dependency in the Gemfile.
Verify that the Gemfile is correctly configured to include necessary dependencies.
Verify Ruby Version:
Check if the Ruby version used for the build is compatible with the minitest gem and its dependencies.
Inspect Test File:
Review the code in test/test_async.rb to ensure that MiniTest is being used correctly and that there are no other issues.