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	Definition	Test	Pull Request
1408279	dotnet/runtime	Regression_PdbOnly_r_4.WorkItemExecution
1408280	dotnet/runtime	jit64_3.WorkItemExecution	#127781
1408162	dotnet/runtime	System.Runtime.InvariantTimezone.Tests.WorkItemExecution	#127368
1407929	dotnet/runtime	System.Runtime.Tests.WorkItemExecution	#127604
1407456	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-0.WorkItemExecution	#127746
1407481	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-5.WorkItemExecution	#127748
1407554	dotnet/runtime	WasmTestOnFirefox-CLR-ST-System.Threading.Tasks.Tests.WorkItemExecution	#127743
1407563	dotnet/runtime	System.Runtime.Numerics.Tests.WorkItemExecution	#127112
1407499	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Linq.AsyncEnumerable.Tests.WorkItemExecution	#127750
1407155	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Xml.Linq.Misc.Tests.WorkItemExecution	#127729
1407313	dotnet/runtime	System.Runtime.Tests.WorkItemExecution
1407143	dotnet/runtime	Microsoft.Extensions.Options.ConfigurationExtensions.SourceGeneration.Tests.WorkItemExecution	#127726
1407089	dotnet/runtime	System.Diagnostics.Process.Tests.WorkItemExecution	#127715
1406875	dotnet/runtime	System.IO.FileSystem.Tests.WorkItemExecution	#127133
1406822	dotnet/runtime	Regression_7.WorkItemExecution	#127596
1406627	dotnet/runtime	WasmTestOnFirefox-MONO-ST-System.Linq.Tests.WorkItemExecution	#126549
1406428	dotnet/runtime	System.Dynamic.Runtime.Tests.WorkItemExecution	#127689
1406484	dotnet/runtime	threading_group2.WorkItemExecution
1406467	dotnet/runtime	threading_group2.WorkItemExecution	#127604
1406420	dotnet/runtime	baseservices.WorkItemExecution	#127688
1406304	dotnet/runtime	threading_group2.WorkItemExecution	#127615
1406288	dotnet/runtime	Regression_PdbOnly_r_4.WorkItemExecution
1406250	dotnet/runtime	Regression_6.WorkItemExecution	#127604
1406235	dotnet/runtime	Microsoft.Extensions.Options.SourceGeneration.Tests.WorkItemExecution	#127613
1406155	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch--3.WorkItemExecution	#126932
1406113	dotnet/runtime	System.Xml.Schema.Extensions.Tests.WorkItemExecution
1406114	dotnet/runtime	Regression_PdbOnly_r_2.WorkItemExecution
1406059	dotnet/runtime	System.Console.Tests.WorkItemExecution	#127661
1406065	dotnet/runtime	WasmTestOnChrome-MONO-ST-Microsoft.Extensions.Configuration.Binder.SourceGeneration.Tests.WorkItemExecution	#126809
1406071	dotnet/runtime	Regression_NoOptimize_r_1.WorkItemExecution	#127680
1406006	dotnet/runtime	WasmTestOnFirefox-CLR-ST-System.Runtime.InteropServices.JavaScript.Tests.WorkItemExecution	#127675
1406020	dotnet/runtime	Microsoft.XmlSerializer.Generator.Tests.SgenTests.SgenCommandTest	#126767
1405957	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-7.WorkItemExecution	#126569
1405901	dotnet/runtime	WasmTestOnChrome-MONO-ST-Microsoft.Extensions.Configuration.Ini.Tests.WorkItemExecution	#127676
1405656	dotnet/runtime	System.IO.Tests.WorkItemExecution	#127644
1405703	dotnet/runtime	System.IO.UnmanagedMemoryStream.Tests.WorkItemExecution	#127613
1405594	dotnet/runtime	System.Runtime.Serialization.Xml.ReflectionOnly.Tests.WorkItemExecution
1405615	dotnet/runtime	jit64_3.MergedTestAssembly.0.1.WorkItemExecution	#126782
1405488	dotnet/runtime	WasmTestOnV8-CLR-ST-System.Threading.Tests.WorkItemExecution	#127656
1405473	dotnet/runtime	jit64_1.WorkItemExecution
1405367	dotnet/runtime	System.Linq.Queryable.Tests.WorkItemExecution	#127256
1405279	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-17.WorkItemExecution	#127590
1405260	dotnet/runtime	Microsoft.Extensions.DependencyInjection.Tests.WorkItemExecution	#127492
1405157	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-14.WorkItemExecution	#127644
1405130	dotnet/runtime	WasmTestOnFirefox-CLR-ST-System.Threading.Tests.WorkItemExecution	#127643
1405047	dotnet/runtime	WasmTestOnFirefox-CLR-ST-System.Runtime.Tests.WorkItemExecution
1404983	dotnet/runtime	Microsoft.CSharp.Tests.WorkItemExecution	#127604
1404991	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Private.Uri.Functional.Tests.WorkItemExecution	#127492
1404925	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-8.WorkItemExecution	#126911
1404839	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-8.WorkItemExecution	#126932
1404816	dotnet/runtime	WasmTestOnChrome-MONO-ST-Microsoft.Extensions.Configuration.EnvironmentVariables.Tests.WorkItemExecution	#127635
1404751	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-7.WorkItemExecution	#127629
1404646	dotnet/runtime	ComInterfaceGenerator.Tests.WorkItemExecution	#127590
1404548	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-7.WorkItemExecution	#127487
1404542	dotnet/runtime	System.Memory.Tests.WorkItemExecution	#126367
1404356	dotnet/runtime	tracing.WorkItemExecution	#127621
1404093	dotnet/runtime	LoaderClassloaderGenerics.WorkItemExecution
1404028	dotnet/runtime	WasmTestOnChrome-MONO-ST-Microsoft.Extensions.Diagnostics.Tests.WorkItemExecution	#127613
1403933	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.IO.FileSystem.Primitives.Tests.WorkItemExecution	#125437
1403852	dotnet/runtime	System.Net.Http.Unit.Tests.WorkItemExecution	#127520
1403763	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-6.WorkItemExecution	#127419
1403745	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-6.WorkItemExecution	#126904
1403828	dotnet/runtime	WasmTestOnFirefox-CLR-ST-System.Runtime.InteropServices.JavaScript.Tests.WorkItemExecution	#127604
1403741	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-7.WorkItemExecution	#127431
1403608	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-6.WorkItemExecution	#127596
1403265	dotnet/runtime	Microsoft.Extensions.Options.SourceGeneration.Unit.Tests.WorkItemExecution
1403218	dotnet/runtime	tracing.WorkItemExecution	#126932
1402968	dotnet/runtime	System.Net.ServerSentEvents.Tests.WorkItemExecution
1402808	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Runtime.Intrinsics.Tests.WorkItemExecution	#127585
1402323	dotnet/runtime	Methodical_do.WorkItemExecution	#127438
1402053	dotnet/runtime	System.Reflection.DispatchProxy.Tests.WorkItemExecution	#127228
1401949	dotnet/runtime	System.Threading.Tasks.Parallel.Tests.WorkItemExecution	#127497
1401944	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.ServiceModel.Syndication.Tests.WorkItemExecution	#127559
1401865	dotnet/runtime	WasmTestOnFirefox-MONO-ST-System.Threading.Thread.Tests.WorkItemExecution	#126841
1401719	dotnet/runtime	System.Runtime.Numerics.Tests.WorkItemExecution
1401620	dotnet/runtime	WBT-NoWebcil-MONO-ST-Wasm.Build.Tests.WorkItemExecution	#127552
1401534	dotnet/runtime	GC/API/GC/Collect_Aggressive_LargePages/Collect_Aggressive_LargePages.cmd
1401460	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-17.WorkItemExecution	#125367
1401234	dotnet/runtime	ComInterfaceGenerator.Unit.Tests.WorkItemExecution	#127542
1400774	dotnet/runtime	JIT/opt/Casts/shared_Casts/shared_Casts.dll
1400742	dotnet/runtime	System.Runtime.Serialization.Xml.ReflectionOnly.Tests.WorkItemExecution	#127492
1400776	dotnet/runtime	System.Formats.Nrbf.Tests.WorkItemExecution
1400614	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Runtime.ReflectionInvokeEmit.Tests.WorkItemExecution	#126549
1400660	dotnet/runtime	WasmTestOnV8-CLR-ST-System.Threading.Tasks.Tests.WorkItemExecution	#127483
1400072	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch--1.WorkItemExecution	#127228
1400150	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-6.WorkItemExecution	#126360
1400140	dotnet/runtime	System.Formats.Nrbf.Tests.WorkItemExecution	#127060
1399780	dotnet/runtime	System.Runtime.Tests.WorkItemExecution
1399567	dotnet/runtime	JIT_others.WorkItemExecution	#127267
1399221	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-18.WorkItemExecution	#127489
1399159	dotnet/runtime	Wasi.Build.Tests.WasiTemplateTests.ConsolePublishAndRunForSingleFileBundle	#126004
1399024	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Xml.Linq.xNodeBuilder.Tests.WorkItemExecution	#125554
1398965	dotnet/runtime	WasmTestOnFirefox-CLR-ST-System.Threading.Tests.WorkItemExecution	#127418
1399011	dotnet/runtime	Wasm.Build.Tests.DebugLevelTests.PublishWithExplicitValue	#127483
1398936	dotnet/runtime	System.Linq.Parallel.Tests.WorkItemExecution	#127477
1398971	dotnet/runtime	Regression_4.WorkItemExecution	#127450
1398755	dotnet/runtime	System.Net.WebHeaderCollection.Tests.WorkItemExecution	#126765
1398754	dotnet/runtime	System.IO.Hashing.Tests.WorkItemExecution
1398495	dotnet/runtime	System.Runtime.Tests.WorkItemExecution	#126905
1398475	dotnet/runtime	System.Net.WebSockets.Tests.WorkItemExecution	#127328
Displaying 100 of 551 results

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
14	89	551

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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