System.Buffers.Text.Tests.Base64EncoderUnitTests.BasicEncoding failing on Windows.Amd64.Server2022

[runfoapp]

runtime/src/libraries/System.Memory/tests/Base64/Base64EncoderUnitTests.cs

Line 79 in 57bfe47

Assert.True(Base64TestHelper.VerifyEncodingCorrectness(expectedConsumed, expectedWritten, source, encodedBytes));

System.Buffers.Text.Tests.Base64EncoderUnitTests.BasicEncodingWithFinalBlockFalse [FAIL]
    Assert.True() Failure
    Expected: True
    Actual:   False
    Stack Trace:
    /_/src/libraries/System.Memory/tests/Base64/Base64EncoderUnitTests.cs(79,0): at System.Buffers.Text.Tests.Base64EncoderUnitTests.BasicEncodingWithFinalBlockFalse()

runtime/src/libraries/System.Memory/tests/Base64/Base64EncoderUnitTests.cs

Line 56 in 57bfe47

Assert.True(Base64TestHelper.VerifyEncodingCorrectness(source.Length, encodedBytes.Length, source, encodedBytes));

System.Buffers.Text.Tests.Base64EncoderUnitTests.BasicEncoding [FAIL]
    Assert.True() Failure
    Expected: True
    Actual:   False
    Stack Trace:
    /_/src/libraries/System.Memory/tests/Base64/Base64EncoderUnitTests.cs(45,0): at System.Buffers.Text.Tests.Base64EncoderUnitTests.BasicEncoding()

Runfo Tracking Issue: system.buffers.text.tests.base64encoderunittests.basicencoding

Build	Definition	Kind	Run Name	Console	Core Dump	Test Results	Run Client
1613481	runtime-extra-platforms	PR 65035	net7.0-windows-Release-x86-CoreCLR_release-Windows.Amd64.Server2022.Open	console.log			runclient.py
1608296	runtime-extra-platforms	Rolling	net7.0-windows-Release-x86-CoreCLR_release-Windows.Amd64.Server2022.Open	console.log			runclient.py
1606695	runtime-extra-platforms	Rolling	net7.0-windows-Release-x86-CoreCLR_release-Windows.Amd64.Server2022.Open	console.log			runclient.py
1600727	runtime-extra-platforms	PR 64968	net7.0-windows-Release-x86-CoreCLR_release-Windows.Amd64.Server2022.Open	console.log			runclient.py
1600670	runtime-extra-platforms	Rolling	net7.0-windows-Release-x86-CoreCLR_release-Windows.Amd64.Server2022.Open	console.log			runclient.py
1599120	runtime-extra-platforms	PR 64330	net7.0-windows-Release-x86-CoreCLR_release-Windows.Amd64.Server2022.Open	console.log			runclient.py

Build Result Summary

Day Hit Count	Week Hit Count	Month Hit Count
0	3	6

I couldn't figure out the best area label to add to this issue. If you have write-permissions please help me learn by adding exactly one area label.

Tagging subscribers to this area: @dotnet/area-system-memory
See info in area-owners.md if you want to be subscribed.

Issue Details

---

runtime/src/libraries/System.Memory/tests/Base64/Base64EncoderUnitTests.cs

Line 79 in 57bfe47

Assert.True(Base64TestHelper.VerifyEncodingCorrectness(expectedConsumed, expectedWritten, source, encodedBytes));

System.Buffers.Text.Tests.Base64EncoderUnitTests.BasicEncodingWithFinalBlockFalse [FAIL]
    Assert.True() Failure
    Expected: True
    Actual:   False
    Stack Trace:
    /_/src/libraries/System.Memory/tests/Base64/Base64EncoderUnitTests.cs(79,0): at System.Buffers.Text.Tests.Base64EncoderUnitTests.BasicEncodingWithFinalBlockFalse()

runtime/src/libraries/System.Memory/tests/Base64/Base64EncoderUnitTests.cs

Line 56 in 57bfe47

Assert.True(Base64TestHelper.VerifyEncodingCorrectness(source.Length, encodedBytes.Length, source, encodedBytes));

System.Buffers.Text.Tests.Base64EncoderUnitTests.BasicEncoding [FAIL]
    Assert.True() Failure
    Expected: True
    Actual:   False
    Stack Trace:
    /_/src/libraries/System.Memory/tests/Base64/Base64EncoderUnitTests.cs(45,0): at System.Buffers.Text.Tests.Base64EncoderUnitTests.BasicEncoding()

Runfo Tracking Issue: system.buffers.text.tests.base64encoderunittests.basicencoding

Build	Definition	Kind	Run Name	Console	Core Dump	Test Results	Run Client
1600727	runtime-extra-platforms	PR 64968	net7.0-windows-Release-x86-CoreCLR_release-Windows.Amd64.Server2022.Open	console.log			runclient.py
1600670	runtime-extra-platforms	Rolling	net7.0-windows-Release-x86-CoreCLR_release-Windows.Amd64.Server2022.Open	console.log			runclient.py
1599120	runtime-extra-platforms	PR 64330	net7.0-windows-Release-x86-CoreCLR_release-Windows.Amd64.Server2022.Open	console.log			runclient.py

Build Result Summary

Day Hit Count	Week Hit Count	Month Hit Count
3	3	3

Author:	runfoapp[bot]
Assignees:	-
Labels:	area-System.Memory, untriaged
Milestone:	-

[adamsitnik]

Since it's another mysterious x86 failure that was observed very recently it's most likely related to #65292 (comment)

[adamsitnik]

It has been most likely fixed by #65490. I am going to close the issue, please reopen it if it fails again.