Discovering: System.Text.Encoding.Tests (method display = ClassAndMethod, method display options = None)
  Discovered:  System.Text.Encoding.Tests (found 338 of 341 test cases)
  Starting:    System.Text.Encoding.Tests (parallel test collections = on, max threads = 4)
    System.Text.Tests.TranscodingStreamTests.ReadAsync_Memory(bufferLength: 1) [FAIL]
      Assert.Equal() Failure
                                       ↓ (pos 10246391)
      Expected: ···fghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmn···
      Actual:   ···fghijklmnopqrstuvwxyZabcdefghijklmnopqrstuvwxyzabcdefghijklmn···
                                       ↑ (pos 10246391)
      Stack Trace:
        /_/src/libraries/System.Text.Encoding/tests/Encoding/TranscodingStreamTests.cs(630,0): at System.Text.Tests.TranscodingStreamTests.<>c__DisplayClass29_0.<<RunReadTestAsync>g__RunOneTestIteration|3>d.MoveNext()
        --- End of stack trace from previous location ---
        /_/src/libraries/System.Text.Encoding/tests/Encoding/TranscodingStreamTests.cs(577,0): at System.Text.Tests.TranscodingStreamTests.RunReadTestAsync(Func`4 callback, Boolean suppressExpectedCancellationTokenAsserts)
        /_/src/libraries/System.Text.Encoding/tests/Encoding/TranscodingStreamTests.cs(462,0): at System.Text.Tests.TranscodingStreamTests.ReadAsync_Memory(Int32 bufferLength)
        --- End of stack trace from previous location ---
  Finished:    System.Text.Encoding.Tests
=== TEST EXECUTION SUMMARY ===
   System.Text.Encoding.Tests  Total: 11166, Errors: 0, Failed: 1, Skipped: 0, Time: 221.904s
/root/helix/work/workitem/e
----- end Tue Oct 26 10:10:34 UTC 2021 ----- exit code 1 ----------------------------------------------------------