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
1457018	dotnet/runtime	CdacXPlatDumpTests_host_linux_x64_dumps_windows_arm64.WorkItemExecution
1456901	dotnet/runtime	reflection.WorkItemExecution	#129203
1456896	dotnet/runtime	Regression_PdbOnly_r_2.WorkItemExecution	#129202
1456839	dotnet/runtime	WBT-Workloads-MONO-ST-Wasm.Build.Tests.Blazor.AssetCachingTests.WorkItemExecution	#129197
1456682	dotnet/runtime	WBT-NoWebcil-MONO-ST-Wasm.Build.Tests.Blazor.AssetCachingTests.WorkItemExecution	#128869
1456648	dotnet/runtime	System.Text.Json.SourceGeneration.Roslyn3.11.Tests.WorkItemExecution	#129194
1456506	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Runtime.InteropServices.Tests.WorkItemExecution	#129043
1456365	dotnet/runtime	WasmTestOnChrome-ST-System.Text.RegularExpressions.Tests.WorkItemExecution
1456271	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-3.WorkItemExecution	#129102
1456245	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-8.WorkItemExecution	#129178
2995999	dotnet-runtime	System.Runtime.InteropServices.Tests.StructureToPtrTests.StructureToPtr_ByValTStr_MultiByte_Overflow	#61947
1456130	dotnet/runtime	Wasm.Build.Tests.IcuTests.FullIcuFromRuntimePackWithInvariant	#129173
1455670	dotnet/runtime	Workloads-NoWebcil-Wasm.Build.Tests.InvariantGlobalizationTests.WorkItemExecution	#128218
1455931	dotnet/runtime	WasmTestOnFirefox-MONO-ST-System.Reflection.MetadataLoadContext.Tests.WorkItemExecution	#129166
1455976	dotnet/runtime	System.IO.FileSystem.DisabledFileLocking.Tests.WorkItemExecution	#129121
1454308	dotnet/runtime	Wasi.Build.Tests.WasiTemplateTests.ConsolePublishAndRunForSingleFileBundle	#126394
1455568	dotnet/runtime	System.Security.Cryptography.Pkcs.Tests.SignedCmsTests.CreateSignature_RsaPss	#119255
1455515	dotnet/runtime	Microsoft.Bcl.Numerics.Tests.WorkItemExecution	#129125
1455392	dotnet/runtime	System.Linq.Parallel.Tests.WorkItemExecution	#129151
1455362	dotnet/runtime	WasmTestOnChrome-MONO-ST-Microsoft.Extensions.DependencyInjection.ExternalContainers.Tests.WorkItemExecution	#128869
1454997	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-6.WorkItemExecution	#127087
1455021	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-19.WorkItemExecution	#129136
1454853	dotnet/runtime	System.Runtime.Numerics.Tests.WorkItemExecution	#129134
1454889	dotnet/runtime	WBT-NoWebcil-MONO-ST-Wasm.Build.Tests.SatelliteLoadingTests.WorkItemExecution	#129067
1454837	dotnet/runtime	System.Xml.Linq.SDMSample.Tests.WorkItemExecution	#129035
1454781	dotnet/runtime	WBT-JavascriptBundler-MONO-ST-Wasm.Build.Tests.WorkItemExecution	#127087
1454726	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-11.WorkItemExecution	#128927
1454730	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-18.WorkItemExecution	#129091
1449378	dotnet/runtime	WBT-NoWorkload-CLR-ST-Wasm.Build.Tests.Blazor.AppsettingsTests.WorkItemExecution	#128956
1454275	dotnet/runtime	WasmTestOnFirefox-MONO-ST-Microsoft.Extensions.Options.SourceGeneration.Tests.WorkItemExecution	#129129
1454244	dotnet/runtime	System.Diagnostics.Tracing.Tests.WorkItemExecution	#126341
1454198	dotnet/runtime	Wasi.Build.Tests.WasiTemplateTests.ConsolePublishAndRunForSingleFileBundle	#126004
1453951	dotnet/runtime	System.Runtime.Numerics.Tests.WorkItemExecution
1453443	dotnet/runtime	WBT-Workloads-MONO-ST-Wasm.Build.Tests.WorkloadTests.WorkItemExecution	#129115
1453397	dotnet/runtime	System.Diagnostics.DiagnosticSource.Tests.WorkItemExecution	#129113
1453333	dotnet/runtime	System.IO.Tests.AnonymousPipeFileStreamConnectedConformanceTests_AsyncRead_AsyncWrite.ReadWrite_Success	#129110
1453313	dotnet/runtime	CdacDumpTests.WorkItemExecution	#128921
1453289	dotnet/runtime	WBT-NoWebcil-MONO-ST-Wasm.Build.Tests.LibraryInitializerTests.WorkItemExecution	#129103
1453266	dotnet/runtime	System.Formats.Nrbf.Tests.WorkItemExecution
1453269	dotnet/runtime	Methodical_r2.WorkItemExecution	#129101
1453239	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Reflection.Context.Tests.WorkItemExecution	#128735
1453198	dotnet/runtime	threading_group2.WorkItemExecution
1453143	dotnet/runtime	WasmTestOnFirefox-MONO-ST-System.Security.SecureString.Tests.WorkItemExecution	#100729
1453043	dotnet/runtime	System.Runtime.Numerics.Tests.WorkItemExecution
1452892	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-19.WorkItemExecution	#129089
1452853	dotnet/runtime	System.Diagnostics.Contracts.Tests.WorkItemExecution	#129084
1452731	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Runtime.InteropServices.JavaScript.Tests.WorkItemExecution	#127695
1452721	dotnet/runtime	JIT.CodeGenBringUpTests_ro.MergedTestAssembly.0.1.WorkItemExecution
1452677	dotnet/runtime	jit64_1.WorkItemExecution	#129075
1452666	dotnet/runtime	Common.Tests.WorkItemExecution	#129073
1452552	dotnet/runtime	System.Runtime.Tests.WorkItemExecution
1452534	dotnet/runtime	WBT-Workloads-MONO-ST-Wasm.Build.Tests.HttpTests.WorkItemExecution	#129067
1452517	dotnet/runtime	Regression_r_1.WorkItemExecution
1452511	dotnet/runtime	Regression_PdbOnly_ro.WorkItemExecution
1452460	dotnet/runtime	WasmTestOnFirefox-CLR-ST-System.Threading.Tests.WorkItemExecution	#129068
1452402	dotnet/runtime	WBT-NoWebcil-MONO-ST-Wasm.Build.Tests.Blazor.EventPipeDiagnosticsTests.WorkItemExecution	#129067
1452183	dotnet/runtime	Regression_PdbOnly_r_4.WorkItemExecution	#129060
1451132	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Runtime.ReflectionInvokeInterpreted.Tests.WorkItemExecution	#127318
1450960	dotnet/runtime	System.IO.Tests.WorkItemExecution	#128957
1450816	dotnet/runtime	System.Text.Encoding.Extensions.Tests.WorkItemExecution	#128604
1450824	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Runtime.Serialization.Xml.ReflectionOnly.Tests.WorkItemExecution	#127695
1450782	dotnet/runtime	System.Runtime.Tests.WorkItemExecution	#129007
1450454	dotnet/runtime	System.ValueTuple.Tests.WorkItemExecution	#129019
2992508	dotnet-runtime	System.Runtime.InteropServices.Tests.StructureToPtrTests.StructureToPtr_ByValTStr_MultiByte_Overflow	#61848
1450161	dotnet/runtime	System.Linq.Expressions.Tests.WorkItemExecution	#129006
1449973	dotnet/runtime	System.Runtime.Caching.Tests.WorkItemExecution	#126324
1449935	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Net.Primitives.Functional.Tests.WorkItemExecution	#128477
1449829	dotnet/runtime	System.Net.Primitives.Pal.Tests.WorkItemExecution	#128988
1449319	dotnet/runtime	Loader.classloader.WorkItemExecution
1449118	dotnet/runtime	WBT-NoWebcil-MONO-ST-Wasm.Build.Tests.WasmSIMDTests.WorkItemExecution	#128969
1449125	dotnet/runtime	Methodical_r1.WorkItemExecution	#128970
1448852	dotnet/runtime	WasmTestOnV8-CLR-ST-System.Runtime.Tests.WorkItemExecution	#128604
1448714	dotnet/runtime	WBT-NoWebcil-MONO-ST-Wasm.Build.Tests.IcuShardingTests.WorkItemExecution	#128272
1448402	dotnet/runtime	System.ComponentModel.Composition.Registration.Tests.WorkItemExecution	#128954
1448362	dotnet/runtime	Microsoft.CSharp.Tests.WorkItemExecution	#128863
1448333	dotnet/runtime	System.Reflection.Emit.ILGeneration.Tests.WorkItemExecution	#127318
1445911	dotnet/runtime	Microsoft.Extensions.Primitives.Tests.WorkItemExecution	#128896
1447585	dotnet/runtime	System.Diagnostics.Tools.Tests.WorkItemExecution	#128940
1447305	dotnet/runtime	JIT.Generics.MergedTestAssembly.0.1.WorkItemExecution	#125311
1447226	dotnet/runtime	System.ServiceModel.Syndication.Tests.WorkItemExecution	#128180
1447159	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-1.WorkItemExecution	#128922
1447125	dotnet/runtime	System.Xml.XmlSerializer.ReflectionOnly.Tests.WorkItemExecution
1446958	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch--2.WorkItemExecution	#128923
1446775	dotnet/runtime	WasmTestOnFirefox-MONO-ST-System.Reflection.Extensions.Tests.WorkItemExecution	#128917
1446669	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.IO.MemoryMappedFiles.Tests.WorkItemExecution	#118616
1446574	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-17.WorkItemExecution	#128920
1446486	dotnet/runtime	Microsoft.Extensions.Configuration.Functional.Tests.WorkItemExecution	#128916
1446344	dotnet/runtime	WasmTestOnChrome-ST-System.Buffers.Tests.WorkItemExecution
1446396	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.IO.Compression.ZipFile.Tests.WorkItemExecution
1446034	dotnet/runtime	Microsoft.Extensions.Configuration.FileExtensions.Tests.WorkItemExecution	#128365
1445510	dotnet/runtime	System.Text.Encoding.Extensions.Tests.WorkItemExecution	#125437
1445229	dotnet/runtime	CoreMangLib.WorkItemExecution
1444966	dotnet/runtime	System.Reflection.TypeExtensions.Tests.WorkItemExecution
1444837	dotnet/runtime	WBT-NoWebcil-MONO-ST-Wasm.Build.Tests.WasmBuildAppTest.WorkItemExecution	#128426
1444759	dotnet/runtime	System.Security.Cryptography.Xml.Tests.WorkItemExecution	#128599
1444735	dotnet/runtime	WBT-NoWorkload-MONO-ST-Wasm.Build.Tests.WorkItemExecution	#128423
1443779	dotnet/runtime	Workloads-NoWebcil-ST-Wasm.Build.Tests.BuildPublishTests.WorkItemExecution	#128775
1443658	dotnet/runtime	System.Globalization.Tests.WorkItemExecution	#127690
1443557	dotnet/runtime	System.Runtime.Tests.WorkItemExecution
1443286	dotnet/runtime	System.Numerics.Tensors.Tests.WorkItemExecution	#128319
Displaying 100 of 250 results

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
19	81	250

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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