Failures:

  1) YAML serialization to_yaml does for bytes
     Failure/Error: "hello".to_slice.to_yaml.should eq("--- !!binary 'aGVsbG8=\n\n'\n")

       Expected: "--- !!binary 'aGVsbG8=\n\n'\n"
            got: "--- !!binary 'aGVsbG8=\n\n  '\n"

     # spec/std/yaml/serialization_spec.cr:329

Finished in 42:04 minutes
15287 examples, 1 failures, 0 errors, 15 pending

Failed examples:

crystal spec spec/std/yaml/serialization_spec.cr:328 # YAML serialization to_yaml does for bytes
make: *** [Makefile:86: spec] Error 1