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
1470630	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-8.WorkItemExecution	#127520
1470552	dotnet/runtime	WasmTestOnFirefox-CLR-ST-System.Runtime.InteropServices.JavaScript.Tests.WorkItemExecution	#128981
1470482	dotnet/runtime	Regression_2.WorkItemExecution
1470498	dotnet/runtime	WBT-NoWebcil-MONO-ST-Wasm.Build.Tests.Blazor.AssetCachingTests.WorkItemExecution	#129503
1470293	dotnet/runtime	WBT-NoWebcil-MONO-ST-Wasm.Build.Tests.Blazor.AssetCachingTests.WorkItemExecution	#125901
1469780	dotnet/runtime	WBT-Workloads-MONO-ST-Wasm.Build.Tests.Blazor.AssetCachingTests.WorkItemExecution	#129543
1469655	dotnet/runtime	System.Text.Json.Tests.WorkItemExecution	#129542
1469480	dotnet/runtime	System.Collections.NonGeneric.Tests.WorkItemExecution	#128384
1469320	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Threading.RateLimiting.Tests.WorkItemExecution	#127582
1465505	dotnet/runtime	WBT-Workloads-MONO-ST-Wasm.Build.Tests.Blazor.AppsettingsTests.WorkItemExecution	#128365
1469203	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Reflection.Tests.WorkItemExecution	#129530
1468614	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Reflection.InvokeInterpreted.Tests.WorkItemExecution	#129512
1468448	dotnet/runtime	System.Resources.Extensions.BinaryFormat.Tests.WorkItemExecution	#125437
1468049	dotnet/runtime	JIT_others.WorkItemExecution
1467969	dotnet/runtime	System.Threading.Tasks.Extensions.Tests.WorkItemExecution
1467837	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-14.WorkItemExecution	#126669
1467290	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-9.WorkItemExecution	#129480
1467295	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Composition.Hosting.Tests.WorkItemExecution	#129119
1467334	dotnet/runtime	ComInterfaceGenerator.Unit.Tests.WorkItemExecution	#129486
1467275	dotnet/runtime	Microsoft.Extensions.Logging.EventSource.Tests.WorkItemExecution	#129483
1467079	dotnet/runtime	WasmTestOnFirefox-MONO-ST-System.Reflection.Context.Tests.WorkItemExecution	#129404
1466950	dotnet/runtime	System.Diagnostics.Tests.PseudoTerminalTests.ProcessStartInfo_PseudoTerminal_Property	#129425
1466872	dotnet/runtime	Wasm.Build.Tests.Blazor.AssetCachingTests.BlazorApp_BasedOnFingerprinting_LoadsWasmAssetsFromCache	#125901
1466836	dotnet/runtime	System.Runtime.Intrinsics.Tests.WorkItemExecution	#126720
1466761	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Security.Cryptography.Tests.WorkItemExecution	#129446
1466587	dotnet/runtime	WasmTestOnFirefox-MONO-ST-System.IO.FileSystem.Tests.WorkItemExecution	#129119
1466624	dotnet/runtime	WBT-Workloads-MONO-ST-Wasm.Build.Tests.Blazor.BuildPublishTests.WorkItemExecution	#129299
1466456	dotnet/runtime	WBT-Workloads-MONO-ST-Wasm.Build.Tests.Blazor.AssetCachingTests.WorkItemExecution	#129232
1466230	dotnet/runtime	System.Runtime.Tests.WorkItemExecution
1465973	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-4.WorkItemExecution	#129389
1465831	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Net.Http.Enterprise.Tests.WorkItemExecution	#129457
1465708	dotnet/runtime	NoWorkload-ST-Wasm.Build.Tests.WorkItemExecution	#129453
1465521	dotnet/runtime	System.Security.Cryptography.OpenSsl.Tests.WorkItemExecution	#129444
1465278	dotnet/runtime	Methodical_others.WorkItemExecution
1463614	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.ComponentModel.Composition.Registration.Tests.WorkItemExecution	#127582
1465350	dotnet/runtime	WasmTestOnFirefox-CLR-ST-System.Threading.Tasks.Tests.WorkItemExecution	#129203
1465324	dotnet/runtime	threading_group1.MergedTestAssembly.5.10.WorkItemExecution	#128776
1465308	dotnet/runtime	threading_group1.MergedTestAssembly.1.10.WorkItemExecution	#128233
1465272	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Runtime.Extensions.Tests.WorkItemExecution	#128768
1465265	dotnet/runtime	WasmTestOnFirefox-MONO-ST-System.Data.Common.Tests.WorkItemExecution	#129394
1465255	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-12.WorkItemExecution	#128950
1465346	dotnet/runtime	System.Net.Http.Functional.Tests.WorkItemExecution
1465242	dotnet/runtime	System.Composition.Convention.Tests.WorkItemExecution	#128604
1465343	dotnet/runtime	System.Formats.Asn1.Tests.WorkItemExecution
1465285	dotnet/runtime	Workloads-ST-Wasm.Build.Tests.WasmNativeDefaultsTests.WorkItemExecution
1465296	dotnet/runtime	CdacDumpTests.WorkItemExecution	#129260
1465298	dotnet/runtime	WasmTestOnV8-CLR-ST-System.Threading.Tests.WorkItemExecution	#129201
1465227	dotnet/runtime	System.Xml.Linq.xNodeReader.Tests.WorkItemExecution	#129398
1465206	dotnet/runtime	System.ComponentModel.Tests.WorkItemExecution
1464995	dotnet/runtime	WBT-Workloads-MONO-ST-Wasm.Build.Tests.Blazor.AssetCachingTests.WorkItemExecution	#129433
1464958	dotnet/runtime	System.Xml.XmlResolverTests.XmlPreloadedResolverGetEntity.XmlResolverGetEntityWithValidUserSuppliedData	#126669
1464756	dotnet/runtime	Microsoft.Extensions.FileProviders.Physical.Tests.WorkItemExecution	#129293
1464442	dotnet/runtime	WBT-NoWorkload-CLR-ST-Wasm.Build.Tests.Blazor.AppsettingsTests.WorkItemExecution	#129420
1464582	dotnet/runtime	WBT-NoWorkload-CLR-ST-Wasm.Build.Tests.Blazor.AppsettingsTests.WorkItemExecution	#129334
1464334	dotnet/runtime	System.Runtime.Tests.WorkItemExecution
1464279	dotnet/runtime	Wasm.Build.Tests.Blazor.AssetCachingTests.BlazorApp_BasedOnFingerprinting_LoadsWasmAssetsFromCache	#129299
1464129	dotnet/runtime	System.Data.Common.Tests.WorkItemExecution
1464056	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Net.Primitives.Functional.Tests.WorkItemExecution	#127868
1463989	dotnet/runtime	Regression_ro_2.WorkItemExecution	#129402
1463896	dotnet/runtime	WBT-NoWorkload-CLR-ST-Wasm.Build.Tests.Blazor.AppsettingsTests.WorkItemExecution	#129405
1463897	dotnet/runtime	WasmTestOnFirefox-CLR-ST-System.Runtime.Tests.WorkItemExecution	#129406
1463951	dotnet/runtime	Common.Tests.WorkItemExecution	#129408
1463866	dotnet/runtime	Common.Tests.WorkItemExecution	#129374
1463820	dotnet/runtime	CdacDumpGen.WorkItemExecution
1463682	dotnet/runtime	WasmTestOnFirefox-MONO-ST-System.Threading.Tests.WorkItemExecution
1463490	dotnet/runtime	WBT-NoWebcil-MONO-ST-Wasm.Build.Tests.DebugLevelTests.WorkItemExecution	#129391
1463462	dotnet/runtime	System.Composition.Hosting.Tests.WorkItemExecution	#129389
1463405	dotnet/runtime	Microsoft.Extensions.Diagnostics.Abstractions.Tests.WorkItemExecution	#129380
1463276	dotnet/runtime	System.Runtime.Tests.WorkItemExecution
1463242	dotnet/runtime	System.Text.Encoding.CodePages.Tests.WorkItemExecution
1463248	dotnet/runtime	WBT-Workloads-MONO-ST-Wasm.Build.Tests.Blazor.AssetCachingTests.WorkItemExecution	#129336
1463235	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Security.Claims.Tests.WorkItemExecution
1463201	dotnet/runtime	System.Threading.Tasks.Extensions.Tests.WorkItemExecution	#129380
1463166	dotnet/runtime	Microsoft.Extensions.Configuration.FileExtensions.Tests.WorkItemExecution	#129279
1462994	dotnet/runtime	threading_group2.MergedTestAssembly.0.1.WorkItemExecution	#129299
1463115	dotnet/runtime	System.Xml.Linq.SDMSample.Tests.WorkItemExecution	#129377
1463092	dotnet/runtime	System.Net.WebHeaderCollection.Tests.WorkItemExecution	#129374
1463058	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-11.WorkItemExecution	#129322
1462919	dotnet/runtime	Regression_do.WorkItemExecution	#129185
1462917	dotnet/runtime	readytorun.WorkItemExecution
1462902	dotnet/runtime	threading_group1.WorkItemExecution	#129365
1460833	dotnet/runtime	WasmTestOnChrome-MONO-ST-Microsoft.Extensions.Options.SourceGeneration.Unit.Tests.WorkItemExecution	#127582
1462834	dotnet/runtime	WasmTestOnChrome-MONO-ST-IcuAppLocal.Tests.WorkItemExecution	#129259
1462759	dotnet/runtime	WBT-NoWebcil-MONO-ST-Wasm.Build.Tests.Blazor.AssetCachingTests.WorkItemExecution	#129197
1462675	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-6.WorkItemExecution	#129362
1462616	dotnet/runtime	System.Text.Json.SourceGeneration.Roslyn3.11.Unit.Tests.WorkItemExecution
1462530	dotnet/runtime	Interop.WorkItemExecution
1462523	dotnet/runtime	WBT-NoWorkload-CLR-ST-Wasm.Build.Tests.Blazor.AppsettingsTests.WorkItemExecution	#129224
1462433	dotnet/runtime	Regression_o_3.WorkItemExecution	#129201
1462367	dotnet/runtime	System.Threading.Tasks.Extensions.Tests.WorkItemExecution	#129351
1462287	dotnet/runtime	JSImportGenerator.Unit.Tests.WorkItemExecution	#128384
1462206	dotnet/runtime	WBT-Workloads-MONO-ST-Wasm.Build.Tests.Blazor.AssetCachingTests.WorkItemExecution
1462003	dotnet/runtime	WBT-Workloads-MONO-ST-Wasm.Build.Tests.RebuildTests.WorkItemExecution	#129067
1462045	dotnet/runtime	WBT-Workloads-MONO-ST-Wasm.Build.Tests.Blazor.AssetCachingTests.WorkItemExecution	#129333
1462035	dotnet/runtime	Regression_PdbOnly_r_1.WorkItemExecution
1461742	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Runtime.CompilerServices.VisualC.Tests.WorkItemExecution	#129002
1461746	dotnet/runtime	WasmTestOnChrome-MONO-ST-Microsoft.Extensions.FileProviders.Physical.Tests.WorkItemExecution	#129332
1461635	dotnet/runtime	WasmTestOnFirefox-MONO-ST-System.Runtime.Extensions.Tests.WorkItemExecution	#129330
1461558	dotnet/runtime	System.Xml.XmlSerializer.ReflectionOnly.Tests.WorkItemExecution	#129328
1461350	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-8.WorkItemExecution	#129299
Displaying 100 of 272 results

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
9	108	272

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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