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
1392394	dotnet/runtime	chrome-DebuggerTests.SteppingTests.WorkItemExecution	#126341
1392127	dotnet/runtime	System.Xml.Schema.Extensions.Tests.WorkItemExecution	#127237
1391727	dotnet/runtime	WasmTestOnChrome-MONO-ST-Microsoft.Win32.Primitives.Tests.WorkItemExecution	#126408
1390901	dotnet/runtime	System.Runtime.Numerics.Tests.WorkItemExecution
1389851	dotnet/runtime	WasmTestOnChrome-MONO-ST-IcuAppLocal.Tests.WorkItemExecution	#127236
1389821	dotnet/runtime	System.Runtime.Numerics.Tests.WorkItemExecution	#127073
1389762	dotnet/runtime	threading_group2.WorkItemExecution	#127022
1389684	dotnet/runtime	System.Xml.Schema.Extensions.Tests.WorkItemExecution	#127202
1389636	dotnet/runtime	Regression_10.WorkItemExecution	#125129
1389550	dotnet/runtime	WasmTestOnFirefox-MONO-ST-System.Net.Http.Functional.Tests.WorkItemExecution	#126385
1389609	dotnet/runtime	IL_Conformance.WorkItemExecution	#125397
1389350	dotnet/runtime	Microsoft.Bcl.AsyncInterfaces.Tests.WorkItemExecution	#127223
1389277	dotnet/runtime	System.IO.FileSystem.Watcher.Tests.WorkItemExecution	#127206
1389293	dotnet/runtime	System.Runtime.Loader.DefaultContext.Tests.WorkItemExecution	#126093
1389242	dotnet/runtime	System.Net.ServerSentEvents.Tests.WorkItemExecution	#127222
1389302	dotnet/runtime	WasmTestOnChrome-ST-System.Text.RegularExpressions.Tests.WorkItemExecution
1389123	dotnet/runtime	System.Security.SecureString.Tests.WorkItemExecution	#127184
1389329	dotnet/runtime	LibraryImportGenerator.UnitTests.CustomMarshallerAttributeAnalyzerTests_StatelessLinearCollectionShapeValidation.CallerAllocatedBuffer_NoBufferSize_ReportsDiagnostic	#124494
1389134	dotnet/runtime	System.Globalization.Calendars.Tests.WorkItemExecution	#126646
1389116	dotnet/runtime	System.Linq.Queryable.Tests.WorkItemExecution	#127216
1389020	dotnet/runtime	System.Runtime.Tests.WorkItemExecution
1388965	dotnet/runtime	Directed_2.MergedTestAssembly.0.1.WorkItemExecution	#127152
1388930	dotnet/runtime	WBT-NoWorkload-CLR-ST-Wasm.Build.Tests.WasmRunOutOfAppBundleTests.WorkItemExecution	#126407
1388696	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Xml.Linq.Properties.Tests.WorkItemExecution
1388652	dotnet/runtime	System.Diagnostics.Tools.Tests.WorkItemExecution	#126768
1388628	dotnet/runtime	System.ComponentModel.Composition.Registration.Tests.WorkItemExecution	#127178
1388644	dotnet/runtime	System.Numerics.Tensors.Tests.WorkItemExecution	#127022
1388581	dotnet/runtime	WasmTestOnFirefox-MONO-ST-System.Resources.Writer.Tests.WorkItemExecution	#127204
1388540	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Composition.Runtime.Tests.WorkItemExecution	#125917
1388543	dotnet/runtime	System.Threading.Tasks.Dataflow.Tests.WorkItemExecution	#127188
1388332	dotnet/runtime	Regression_PdbOnly_r_4.WorkItemExecution
1388377	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#127196
1388305	dotnet/runtime	Methodical_r1.WorkItemExecution	#127134
1388277	dotnet/runtime	Directed_2.WorkItemExecution	#127182
1388208	dotnet/runtime	System.IO.IsolatedStorage.Tests.WorkItemExecution	#126863
1388323	dotnet/runtime	JIT_others.WorkItemExecution	#127146
1388248	dotnet/runtime	System.IO.FileSystem.Watcher.Tests.WorkItemExecution	#127192
1388404	dotnet/runtime	chrome-DebuggerTests.EvaluateOnCallFrameTests.WorkItemExecution	#126341
1388245	dotnet/runtime	System.Net.Sockets.Tests.WorkItemExecution	#127192
1388054	dotnet/runtime	System.Net.Http.Enterprise.Tests.WorkItemExecution	#127178
1387990	dotnet/runtime	System.Diagnostics.StackTrace.Tests.WorkItemExecution	#126691
1387993	dotnet/runtime	GC.MergedTestAssembly.0.1.WorkItemExecution	#126108
1387909	dotnet/runtime	WasmTestOnFirefox-MONO-ST-System.Threading.Overlapped.Tests.WorkItemExecution	#126968
1387914	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Runtime.Serialization.Json.Tests.WorkItemExecution	#127022
1387866	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-16.WorkItemExecution	#125650
1387716	dotnet/runtime	WasmTestOnFirefox-MONO-ST-System.Runtime.Serialization.Json.ReflectionOnly.Tests.WorkItemExecution	#125396
1387606	dotnet/runtime	IntrinsicsInSystemPrivateCoreLib.Tests.WorkItemExecution	#127174
1387627	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Web.HttpUtility.Tests.WorkItemExecution	#124930
1387566	dotnet/runtime	System.Resources.Reader.Tests.WorkItemExecution	#126852
1387544	dotnet/runtime	Regression_o_2.WorkItemExecution
1387406	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.IO.MemoryMappedFiles.Tests.WorkItemExecution	#127165
1387424	dotnet/runtime	JIT.CodeGenBringUpTests_r.WorkItemExecution	#126916
1387329	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-3.WorkItemExecution	#127105
1387289	dotnet/runtime	System.Runtime.InteropServices.Tests.WorkItemExecution	#126907
1387259	dotnet/runtime	MetricOuterLoop.Tests.WorkItemExecution	#127164
1387222	dotnet/runtime	System.Diagnostics.DiagnosticSource.Switches.Tests.WorkItemExecution	#127161
1386914	dotnet/runtime	WasmTestOnFirefox-MONO-ST-System.Xml.Linq.Streaming.Tests.WorkItemExecution	#127146
1387167	dotnet/runtime	System.Runtime.Extensions.Tests.WorkItemExecution	#127140
1387072	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.ValueTuple.Tests.WorkItemExecution	#127147
1387153	dotnet/runtime	System.Buffers.Tests.WorkItemExecution	#127143
1387076	dotnet/runtime	WBT-NoWebcil-MONO-ST-Wasm.Build.NativeRebuild.Tests.NoopNativeRebuildTest.WorkItemExecution	#127060
1387137	dotnet/runtime	System.DirectoryServices.Protocols.Tests.DirectoryServicesProtocolsTests_Local.TestPageRequests	#127139
1386997	dotnet/runtime	WBT-Workloads-MONO-ST-Wasm.Build.Tests.WorkloadTests.WorkItemExecution	#126407
1386983	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Composition.Convention.Tests.WorkItemExecution	#127051
1387029	dotnet/runtime	System.Xml.Linq.Streaming.Tests.WorkItemExecution	#127022
1386871	dotnet/runtime	System.Text.Json.Tests.WorkItemExecution
1386835	dotnet/runtime	System.DirectoryServices.Protocols.Tests.DirectoryServicesProtocolsTests_Local.TestAsyncSearch	#127076
1386781	dotnet/runtime	tracing.WorkItemExecution	#126324
1384133	dotnet/runtime	System.ServiceModel.Syndication.Tests.WorkItemExecution	#126996
1386733	dotnet/runtime	WBT-NoWebcil-MONO-ST-Wasm.Build.Tests.WasmTemplateTests.WorkItemExecution	#122030
1386714	dotnet/runtime	tracing.WorkItemExecution
1386681	dotnet/runtime	WBT-JavascriptBundler-MONO-ST-Wasm.Build.Tests.WorkItemExecution	#127087
1386593	dotnet/runtime	System.IO.FileSystem.Tests.WorkItemExecution	#127022
1386655	dotnet/runtime	WBT-NoWebcil-MONO-ST-Wasm.Build.Tests.Blazor.MiscTests.WorkItemExecution
1386634	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Runtime.Tests.WorkItemExecution	#127139
1386531	dotnet/runtime	System.DirectoryServices.Protocols.Tests.DirectoryServicesProtocolsTests_Local.TestAddingMultipleAttributes	#127076
1386474	dotnet/runtime	Wasm.Build.Tests.SatelliteAssembliesTests.ResourcesFromMainAssembly	#127133
1386452	dotnet/runtime	System.Threading.Tasks.Tests.WorkItemExecution	#125180
1386491	dotnet/runtime	WasmTestOnV8-ST-System.Runtime.Tests.WorkItemExecution	#125945
1386400	dotnet/runtime	WBT-Workloads-MONO-ST-Wasm.Build.Tests.RebuildTests.WorkItemExecution	#126380
1386420	dotnet/runtime	WasmTestOnFirefox-CLR-ST-System.Net.WebSockets.Client.Tests.WorkItemExecution	#126743
1386360	dotnet/runtime	Microsoft.VisualBasic.Core.Tests.WorkItemExecution	#127114
1386365	dotnet/runtime	HardwareIntrinsics_X86_Avx512_ro.WorkItemExecution
1386337	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Security.SecureString.Tests.WorkItemExecution	#115294
1386288	dotnet/runtime	System.ValueTuple.Tests.WorkItemExecution	#127123
1386263	dotnet/runtime	Microsoft.Extensions.Diagnostics.Abstractions.Tests.WorkItemExecution
1386251	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-3.WorkItemExecution	#126844
1386257	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Security.SecureString.Tests.WorkItemExecution	#127116
1386271	dotnet/runtime	System.DirectoryServices.Protocols.Tests.DirectoryServicesProtocolsTests_Local.TestAddAndModifyAttribute	#126147
1386229	dotnet/runtime	System.DirectoryServices.Protocols.Tests.PageResultResponseControlTests.NonconformantResponseControlParsedSuccessfully	#126277
1386173	dotnet/runtime	Microsoft.Bcl.Memory.Tests.WorkItemExecution	#127120
1386165	dotnet/runtime	WasmTestOnChrome-MONO-ST-System.Text.Json.Tests.WorkItemExecution	#111439
1386131	dotnet/runtime	System.Diagnostics.TraceSource.Tests.WorkItemExecution	#127119
1386097	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch-18.WorkItemExecution	#126949
1386088	dotnet/runtime	WasmTestOnChrome-CLR-ST-Batch--1.WorkItemExecution	#126972
1386085	dotnet/runtime	System.Diagnostics.Process.Tests.WorkItemExecution	#127106
1386058	dotnet/runtime	System.Net.WebSockets.Client.Tests.WorkItemExecution	#127112
1386064	dotnet/runtime	WasmTestOnFirefox-CLR-ST-System.Runtime.Tests.WorkItemExecution	#126844
1386029	dotnet/runtime	System.Runtime.Tests.WorkItemExecution
1385992	dotnet/runtime	System.Reflection.Emit.Tests.WorkItemExecution	#126559
Displaying 100 of 650 results

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
4	166	650

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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