Unable to pull image from mcr.microsoft.com

[jozkee]

Build Information

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1108670
Build error leg or test failing:

Error Message

Fill the error message using step by step known issues guidance.

{
  "ErrorMessage": "Unable to pull image mcr.microsoft.com/dotnet-buildtools/prereqs",
  "BuildRetry": true,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1108670
Result validation: ⚠️ Validation could not be done without an Azure DevOps build URL on the issue. Please add it to the "Build: 🔎" line.
Validation performed at: 8/1/2025 8:10:46 AM UTC

Report

Build	Repository	Test	Pull Request
1495016	dotnet/runtime	System.Xml.XmlSerializer.ReflectionOnly.Tests.WorkItemExecution
1495003	dotnet/runtime	WasmTestOnFirefox-CLR-ST-System.Threading.Tasks.Tests.WorkItemExecution	#130238
1494896	dotnet/runtime	WBT-NoWebcil-MONO-ST-Wasm.Build.Tests.MT.Blazor.SimpleMultiThreadedTests.WorkItemExecution	#130234
1494757	dotnet/runtime	Microsoft.Extensions.DependencyInjection.Tests.WorkItemExecution	#130062
1494767	dotnet/runtime	WasmTestOnChrome-MONO-ST-Microsoft.Extensions.Options.Tests.WorkItemExecution	#130232
1494678	dotnet/runtime	System.Reflection.Context.Tests.WorkItemExecution
1494680	dotnet/runtime	Microsoft.Bcl.AsyncInterfaces.Tests.WorkItemExecution	#129992
1494373	dotnet/runtime	Methodical_r2.WorkItemExecution
1494370	dotnet/runtime	System.Xml.Linq.Misc.Tests.WorkItemExecution
1494358	dotnet/runtime	WBT-Workloads-MONO-ST-Wasm.Build.Tests.WasmSIMDTests.WorkItemExecution	#130210
1494331	dotnet/runtime	jit64_5.WorkItemExecution	#130202
1494298	dotnet/runtime	Microsoft.Extensions.Http.Tests.WorkItemExecution	#130213
1494284	dotnet/runtime	Microsoft.AspNetCore.Hosting.FunctionalTests.ShutdownTests.ShutdownTestRun	#130207
1494261	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-9.WorkItemExecution	#130209
1494245	dotnet/runtime	WasmTestOnFirefox-CLR-ST-System.Runtime.Tests.WorkItemExecution	#130207
1494216	dotnet/runtime	WBT-NoWebcil-MONO-ST-Wasm.Build.Tests.NativeBuildTests.WorkItemExecution
1494189	dotnet/runtime	JIT/Regression/JitBlue/Runtime_34937/Runtime_34937/Runtime_34937.cmd
1494152	dotnet/runtime	Regression_d.WorkItemExecution	#130202
1494157	dotnet/runtime	reflection.WorkItemExecution	#130203
1494127	dotnet/runtime	Microsoft.Extensions.FileProviders.Physical.Tests.PhysicalFilesWatcherTests.CreateFileChangeToken_RootDeletedAndRecreated_TokenFiresWhenFileCreated	#130201
1494059	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-19.WorkItemExecution	#130197
1494052	dotnet/runtime	System.Threading.Tests.WorkItemExecution	#130196
1494002	dotnet/runtime	System.Text.Json.SourceGeneration.Roslyn4.4.Unit.Tests.WorkItemExecution	#125379
1493986	dotnet/runtime	System.Threading.Tests.MutexTests.CrossProcess_NamedMutex_ConcurrentCreateOrOpen
1493925	dotnet/runtime	Workloads-ST-Wasm.Build.Tests.TestAppScenarios.LazyLoadingTests.WorkItemExecution	#130194
1493889	dotnet/runtime	Methodical_r1.WorkItemExecution
1493751	dotnet/runtime	WBT-Workloads-MONO-ST-Wasm.Build.Tests.WasmTemplateTests.WorkItemExecution	#128799
1493534	dotnet/runtime	tracing.WorkItemExecution	#130141
1493324	dotnet/runtime	tracing.WorkItemExecution	#130172
1492983	dotnet/runtime	WasmTestOnChrome-MONO-ST-Microsoft.VisualBasic.Core.Tests.WorkItemExecution	#130167
1492892	dotnet/runtime	WBT-Workloads-MONO-ST-Wasm.Build.Tests.InvariantTimezoneTests.WorkItemExecution	#130122
1492684	dotnet/runtime	Microsoft.Extensions.Caching.Memory.MemoryCacheSetAndRemoveTests.OvercapacityPurge_AreThreadSafe
1492343	dotnet/runtime	WBT-NoWebcil-MONO-ST-Wasm.Build.Tests.NativeBuildTests.WorkItemExecution	#130142
1492316	dotnet/runtime	reflection.WorkItemExecution	#130141
1492240	dotnet/runtime	System.Threading.ThreadPool.Tests.WorkItemExecution
1491332	dotnet/runtime	JIT/opt/Add/IntAdd/IntAdd.cmd
1491315	dotnet/runtime	WBT-Workloads-MONO-ST-Wasm.Build.Tests.WasmSIMDTests.WorkItemExecution	#130111
1491203	dotnet/runtime	WasmTestOnFirefox-CLR-ST-System.Threading.Tasks.Tests.WorkItemExecution	#130109
1491062	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Xml.Linq.Misc.Tests.WorkItemExecution	#129118
1490833	dotnet/runtime	Regression_ro_1.WorkItemExecution	#130104
1490760	dotnet/runtime	Regression_PdbOnly_r_4.WorkItemExecution	#129828
1490315	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Text.RegularExpressions.Tests.WorkItemExecution	#129118
1490140	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch--1.WorkItemExecution	#129894
1490051	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Reflection.DispatchProxy.Tests.WorkItemExecution	#130084
1489974	dotnet/runtime	JIT.performance.WorkItemExecution	#128950
1490012	dotnet/runtime	Microsoft.Extensions.Options.Tests.WorkItemExecution	#125437
1489396	dotnet/runtime	System.Net.Http.Functional.Tests.SocketsHttpHandler_DiagnosticsTest_Http2.SendAsync_Success_ConnectionSetupActivityGraphRecorded
1489251	dotnet/runtime	System.Net.HttpListener.Tests.WorkItemExecution	#130061
1489205	dotnet/runtime	WasmTestOnFirefox-MONO-ST-Microsoft.Extensions.Configuration.Xml.Tests.WorkItemExecution	#130065
1488719	dotnet/runtime	Microsoft.Extensions.Configuration.Ini.Tests.WorkItemExecution	#130057
1488579	dotnet/runtime	CdacStressTests.WorkItemExecution	#129761
1488363	dotnet/runtime	Regression_1.WorkItemExecution
1488062	dotnet/runtime	WasmTestOnFirefox-MONO-ST-System.Net.Http.Functional.Tests.WorkItemExecution	#129424
1487983	dotnet/runtime	System.ServiceModel.Syndication.Tests.WorkItemExecution	#130032
1487853	dotnet/runtime	System.Net.Security.Unit.Tests.WorkItemExecution	#130033
1487769	dotnet/runtime	WBT-NoWorkload-CLR-ST-Wasm.Build.Tests.IcuShardingTests.WorkItemExecution	#125437
1487651	dotnet/runtime	System.IO.Pipelines.Tests.WorkItemExecution	#129801
1487541	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-9.WorkItemExecution	#129978
1487457	dotnet/runtime	System.Reflection.Tests.WorkItemExecution
1487296	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Runtime.Serialization.Xml.Canonicalization.Tests.WorkItemExecution	#129424
1487100	dotnet/runtime	NoWebcil-ST-Wasm.Build.Tests.Blazor.NativeTests.WorkItemExecution	#129988
1487068	dotnet/runtime	tracing.WorkItemExecution	#130019
1487073	dotnet/runtime	WasmTestOnFirefox-CLR-ST-System.Threading.Tests.WorkItemExecution	#129935
1487022	dotnet/runtime	System.Runtime.Serialization.Primitives.Tests.WorkItemExecution	#130011
1487037	dotnet/runtime	System.IO.UnmanagedMemoryStream.Tests.WorkItemExecution
1486957	dotnet/runtime	System.Collections.Immutable.Tests.WorkItemExecution	#130016
1486422	dotnet/runtime	Microsoft.AspNetCore.Hosting.FunctionalTests.ShutdownTests.ShutdownTestRun	#125436
1486212	dotnet/runtime	Workloads-NoWebcil-ST-Wasm.Build.Tests.WasmBuildAppTest.WorkItemExecution
1485786	dotnet/runtime	System.Xml.XmlSerializer.ReflectionOnly.Tests.WorkItemExecution
1485607	dotnet/runtime	MetricOuterLoop.Tests.WorkItemExecution	#129968
1485582	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Text.Encodings.Web.Tests.WorkItemExecution	#128862
1485511	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Security.Claims.Tests.WorkItemExecution	#122093
1485187	dotnet/runtime	WasmTestOnChrome-ST-System.Text.RegularExpressions.Tests.WorkItemExecution
1485378	dotnet/runtime	Microsoft.XmlSerializer.Generator.Tests.WorkItemExecution	#129582
1485343	dotnet/runtime	tracing.WorkItemExecution	#129424
1484925	dotnet/runtime	Microsoft.AspNetCore.Hosting.FunctionalTests.ShutdownTests.ShutdownTestRun
1484826	dotnet/runtime	WasmTestOnFirefox-MONO-ST-Microsoft.CSharp.Tests.WorkItemExecution	#129259
1484821	dotnet/runtime	WBT-NoWebcil-MONO-ST-Wasm.Build.Tests.PreloadingTests.WorkItemExecution	#129934
1484807	dotnet/runtime	WasmTestOnFirefox-CLR-ST-System.Threading.Tests.WorkItemExecution	#129910
1484815	dotnet/runtime	WasmTestOnFirefox-CLR-ST-System.Runtime.Tests.WorkItemExecution	#129941
1484749	dotnet/runtime	Microsoft.AspNetCore.Hosting.FunctionalTests.ShutdownTests.ShutdownTestRun
1484750	dotnet/runtime	threading_group1.WorkItemExecution
1484622	dotnet/runtime	threading_group1.WorkItemExecution	#129941
1484615	dotnet/runtime	CdacStressTests.WorkItemExecution	#129935
1484480	dotnet/runtime	System.Linq.AsyncEnumerable.Tests.WorkItemExecution	#129502
1484429	dotnet/runtime	JIT/Regression/JitBlue/Runtime_34937/Runtime_34937/Runtime_34937.cmd
1484398	dotnet/runtime	jit64_5.WorkItemExecution
1484420	dotnet/runtime	CdacDumpTests.WorkItemExecution	#129858
1484382	dotnet/runtime	System.IO.Tests.Enumeration.MatchTypesTests_DirectoryInfo_GetFiles.OverlappingExtensions_AllMatchTypes_Comprehensive	#127368
1484363	dotnet/runtime	System.Collections.Concurrent.Tests.WorkItemExecution	#129923
1484157	dotnet/runtime	System.Data.Odbc.Tests.WorkItemExecution	#129923
1484000	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-17.WorkItemExecution	#129703
1484052	dotnet/runtime	System.Diagnostics.StackTrace.Tests.WorkItemExecution	#127980
1483880	dotnet/runtime	Workloads-NoWebcil-ST-Wasm.Build.NativeRebuild.Tests.ReferenceNewAssemblyRebuildTest.WorkItemExecution	#129357
1483754	dotnet/runtime	System.Xml.Linq.Properties.Tests.WorkItemExecution	#129908
1483521	dotnet/runtime	WasmTestOnChrome-MONO-ST-Microsoft.Extensions.Configuration.FileExtensions.Tests.WorkItemExecution	#126367
1483291	dotnet/runtime	Microsoft.Extensions.FileProviders.Physical.Tests.WorkItemExecution	#129894
1483236	dotnet/runtime	Regression_1.WorkItemExecution	#127520
1483107	dotnet/runtime	System.Private.Xml.Tests.WorkItemExecution	#129885
1482799	dotnet/runtime	System.IO.Compression.Tests.zip_ReadTests.PasswordProtectedZip64_UpdateMode_Throws	#122093
Displaying 100 of 368 results

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
7	71	368

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[jozkee]

This is from a preview6 run from Jun 20th, it might've been fixed in main already.

[lewing]

@akoeplinger do we know what is causing these in general?

[akoeplinger]

hm no, this looks like an infrastructure/dnceng issue to me

[AndriySvyryd]

We are hitting a similar one: Unable to pull image mcr.microsoft.com/dotnet-buildtools/prereqs:ubuntu-22.04-helix-sqlserver-amd64 in efcore
https://dev.azure.com/dnceng-public/public/_build/results?buildId=1106421&view=logs&j=f95328f7-07f5-5106-5c2a-5dc7069f305c&t=e2f3026d-346a-509b-3549-57236476a9cb
https://dev.azure.com/dnceng-public/public/_build/results?buildId=1108065&view=logs&j=f95328f7-07f5-5106-5c2a-5dc7069f305c&t=e2f3026d-346a-509b-3549-57236476a9cb