Generating SBOM with NuGet (`Microsoft.Sbom.Targets`) on MacoSX results in intermittent hangs

[moljac]

In Android Libraries (ALs) repo dotnet/android-libraries

https://github.com/dotnet/android-libraries

there is Microsoft.Sbom.Targets used to generate SBOM.

https://github.com/dotnet/android-libraries/blob/main/source/AndroidXProject.cshtml#L157

Windows builds are OK, but on MacOSX there are intermittent hangs both locally, but more on CI.

At the beginning I thought it is because of nuget (which embedds Android Maven Artifact) size, because sometimes console output look like:

##[information]""
##[information]""
##[information]Detection time: 0.7780777 seconds.
##[information]Scan Manifest file: "/var/folders/n_/nmyqybqn4p38srnvrc25mtvc0000gn/T/ScanManifest_20250219144511001.json"
##[information]Finished execution of the Generate workflow SBOMTelemetry {Result=Success, Errors=ErrorContainer`1 {Count=0, Errors=[]}, Parameters=Configuration {BuildDropPath=ConfigurationSetting`1 {Value="/Users/Shared/Projects/d/dotnet/android-libraries/dev--moljac--wsu-20250207/output/Xamarin.TensorFlow.Lite.Select.TF.Ops.2.16.1.4.5fe5ff46.temp", Source=SBOMApi, IsDefaultSource=False}, BuildComponentPath=ConfigurationSetting`1 {Value="/Users/Shared/Projects/d/dotnet/android-libraries/dev--moljac--wsu-20250207/generated/org.tensorflow.tensorflow-lite-select-tf-ops", Source=SBOMApi, IsDefaultSource=False}, BuildListFile=null, ManifestPath=null, ManifestDirPath=ConfigurationSetting`1 {Value="/Users/Shared/Projects/d/dotnet/android-libraries/dev--moljac--wsu-20250207/output/Xamarin.TensorFlow.Lite.Select.TF.Ops.2.16.1.4.5fe5ff46.temp/_manifest", Source=Default, IsDefaultSource=True}, OutputPath=null, Parallelism=ConfigurationSetting`1 {Value=8, Source=SBOMApi, IsDefaultSource=False}, Verbosity=ConfigurationSetting`1 {Value=Information, Source=SBOMApi, IsDefaultSource=False}, ConfigFilePath=null, ManifestInfo=ConfigurationSetting`1 {Value=[ManifestInfo {Name="SPDX", Version="2.2"}], Source=SBOMApi, IsDefaultSource=False}, HashAlgorithm=null, RootPathFilter=null, CatalogFilePath=null, ValidateSignature=null, IgnoreMissing=null, ManifestToolAction=Generate, PackageName=ConfigurationSetting`1 {Value="Xamarin.TensorFlow.Lite.Select.TF.Ops", Source=SBOMApi, IsDefaultSource=False}, PackageVersion=ConfigurationSetting`1 {Value="1.0.0", Source=SBOMApi, IsDefaultSource=False}, PackageSupplier=ConfigurationSetting`1 {Value="Microsoft", Source=SBOMApi, IsDefaultSource=False}, FilesList=null, PackagesList=null, TelemetryFilePath=null, DockerImagesToScan=null, ExternalDocumentReferenceListFile=null, AdditionalComponentDetectorArgs=null, NamespaceUriUniquePart=ConfigurationSetting`1 {Value=null, Source=SBOMApi, IsDefaultSource=False}, NamespaceUriBase=ConfigurationSetting`1 {Value="http://spdx.org/spdxdocs/Xamarin.TensorFlow.Lite.Select.TF.Ops", Source=SBOMApi, IsDefaultSource=False}, GenerationTimestamp=ConfigurationSetting`1 {Value=null, Source=SBOMApi, IsDefaultSource=False}, FollowSymlinks=ConfigurationSetting`1 {Value=True, Source=SBOMApi, IsDefaultSource=False}, DeleteManifestDirIfPresent=ConfigurationSetting`1 {Value=True, Source=SBOMApi, IsDefaultSource=False}, FailIfNoPackages=null, FetchLicenseInformation=null, EnablePackageMetadataParsing=null, SbomPath=null, SbomDir=null}, SBOMFormatsUsed=[SBOMFile {SbomFormatName=ManifestInfo {Name="SPDX", Version="2.2"}, SbomFilePath="/Users/Shared/Projects/d/dotnet/android-libraries/dev--moljac--wsu-20250207/output/Xamarin.TensorFlow.Lite.Select.TF.Ops.2.16.1.4.5fe5ff46.temp/_manifest/spdx_2.2/manifest.spdx.json", FileSizeInBytes=13667, TotalNumberOfPackages=4}], Timings=[Timing {EventName="Metadata build time for SPDX:2.2 format", TimeSpan="00:00:00.0000641"}, Timing {EventName="Relationships generation time", TimeSpan="00:00:00.0001278"}, Timing {EventName="External document reference generation time", TimeSpan="00:00:00.0003600"}, Timing {EventName="Packages generation time", TimeSpan="00:00:00.0009005"}, Timing {EventName="Files generation time", TimeSpan="00:00:01.8523907"}, Timing {EventName="Total generation time", TimeSpan="00:00:01.8733563"}], Switches={}, Exceptions={}, APIExceptions={}, MetadataExceptions={}, TotalLicensesDetected=0, PackageDetailsEntries=0}
  Zipping directory "/Users/Shared/Projects/d/dotnet/android-libraries/dev--moljac--wsu-20250207/output/Xamarin.TensorFlow.Lite.Select.TF.Ops.2.16.1.4.5fe5ff46.temp" to "/Users/Shared/Projects/d/dotnet/android-libraries/dev--moljac--wsu-20250207/output/Xamarin.TensorFlow.Lite.Select.TF.Ops.2.16.1.4.nupkg".

And some TensorFlow artifacts embed ML models increasing size, but in couple of few weeks with version 3.1.0 hangs related to other artifacts like Kotlin were noticed.

Attempting to cancel the build results in following output (maybe this could give some pointers):

$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/androidx.lifecycle.lifecycle-viewmodel-android/androidx.lifecycle.lifecycle-viewmodel-android.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/androidx.lifecycle.lifecycle-runtime-ktx-android/androidx.lifecycle.lifecycle-runtime-ktx-android.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.jetbrains.kotlin.kotlin-stdlib/org.jetbrains.kotlin.kotlin-stdlib.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/com.google.j2objc.j2objc-annotations/com.google.j2objc.j2objc-annotations.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.checkerframework.checker-qual/org.checkerframework.checker-qual.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.brotli.dec/org.brotli.dec.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/androidx.lifecycle.lifecycle-viewmodel-android/androidx.lifecycle.lifecycle-viewmodel-android.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/androidx.lifecycle.lifecycle-runtime-ktx-android/androidx.lifecycle.lifecycle-runtime-ktx-android.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.jetbrains.kotlin.kotlin-stdlib/org.jetbrains.kotlin.kotlin-stdlib.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/com.google.j2objc.j2objc-annotations/com.google.j2objc.j2objc-annotations.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.brotli.dec/org.brotli.dec.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.checkerframework.checker-qual/org.checkerframework.checker-qual.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/androidx.lifecycle.lifecycle-viewmodel-android/androidx.lifecycle.lifecycle-viewmodel-android.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/androidx.lifecycle.lifecycle-runtime-ktx-android/androidx.lifecycle.lifecycle-runtime-ktx-android.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.jetbrains.kotlin.kotlin-stdlib/org.jetbrains.kotlin.kotlin-stdlib.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/com.google.j2objc.j2objc-annotations/com.google.j2objc.j2objc-annotations.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.brotli.dec/org.brotli.dec.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.checkerframework.checker-qual/org.checkerframework.checker-qual.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/androidx.lifecycle.lifecycle-viewmodel-android/androidx.lifecycle.lifecycle-viewmodel-android.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/androidx.lifecycle.lifecycle-runtime-ktx-android/androidx.lifecycle.lifecycle-runtime-ktx-android.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.jetbrains.kotlin.kotlin-stdlib/org.jetbrains.kotlin.kotlin-stdlib.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/com.google.j2objc.j2objc-annotations/com.google.j2objc.j2objc-annotations.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.brotli.dec/org.brotli.dec.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.checkerframework.checker-qual/org.checkerframework.checker-qual.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/androidx.lifecycle.lifecycle-viewmodel-android/androidx.lifecycle.lifecycle-viewmodel-android.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/androidx.lifecycle.lifecycle-runtime-ktx-android/androidx.lifecycle.lifecycle-runtime-ktx-android.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.jetbrains.kotlin.kotlin-stdlib/org.jetbrains.kotlin.kotlin-stdlib.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/com.google.j2objc.j2objc-annotations/com.google.j2objc.j2objc-annotations.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.brotli.dec/org.brotli.dec.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.checkerframework.checker-qual/org.checkerframework.checker-qual.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/androidx.lifecycle.lifecycle-viewmodel-android/androidx.lifecycle.lifecycle-viewmodel-android.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/androidx.lifecycle.lifecycle-runtime-ktx-android/androidx.lifecycle.lifecycle-runtime-ktx-android.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.jetbrains.kotlin.kotlin-stdlib/org.jetbrains.kotlin.kotlin-stdlib.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/com.google.j2objc.j2objc-annotations/com.google.j2objc.j2objc-annotations.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.brotli.dec/org.brotli.dec.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.checkerframework.checker-qual/org.checkerframework.checker-qual.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/androidx.lifecycle.lifecycle-viewmodel-android/androidx.lifecycle.lifecycle-viewmodel-android.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/androidx.lifecycle.lifecycle-runtime-ktx-android/androidx.lifecycle.lifecycle-runtime-ktx-android.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.jetbrains.kotlin.kotlin-stdlib/org.jetbrains.kotlin.kotlin-stdlib.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/com.google.j2objc.j2objc-annotations/com.google.j2objc.j2objc-annotations.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.brotli.dec/org.brotli.dec.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.checkerframework.checker-qual/org.checkerframework.checker-qual.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/androidx.lifecycle.lifecycle-viewmodel-android/androidx.lifecycle.lifecycle-viewmodel-android.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/androidx.lifecycle.lifecycle-runtime-ktx-android/androidx.lifecycle.lifecycle-runtime-ktx-android.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.jetbrains.kotlin.kotlin-stdlib/org.jetbrains.kotlin.kotlin-stdlib.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/com.google.j2objc.j2objc-annotations/com.google.j2objc.j2objc-annotations.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.brotli.dec/org.brotli.dec.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.checkerframework.checker-qual/org.checkerframework.checker-qual.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/androidx.lifecycle.lifecycle-viewmodel-android/androidx.lifecycle.lifecycle-viewmodel-android.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/androidx.lifecycle.lifecycle-runtime-ktx-android/androidx.lifecycle.lifecycle-runtime-ktx-android.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.jetbrains.kotlin.kotlin-stdlib/org.jetbrains.kotlin.kotlin-stdlib.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/com.google.j2objc.j2objc-annotations/com.google.j2objc.j2objc-annotations.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.brotli.dec/org.brotli.dec.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.checkerframework.checker-qual/org.checkerframework.checker-qual.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/androidx.lifecycle.lifecycle-viewmodel-android/androidx.lifecycle.lifecycle-viewmodel-android.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/androidx.lifecycle.lifecycle-runtime-ktx-android/androidx.lifecycle.lifecycle-runtime-ktx-android.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.jetbrains.kotlin.kotlin-stdlib/org.jetbrains.kotlin.kotlin-stdlib.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/com.google.j2objc.j2objc-annotations/com.google.j2objc.j2objc-annotations.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.brotli.dec/org.brotli.dec.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.checkerframework.checker-qual/org.checkerframework.checker-qual.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/androidx.lifecycle.lifecycle-viewmodel-android/androidx.lifecycle.lifecycle-viewmodel-android.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/androidx.lifecycle.lifecycle-runtime-ktx-android/androidx.lifecycle.lifecycle-runtime-ktx-android.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.jetbrains.kotlin.kotlin-stdlib/org.jetbrains.kotlin.kotlin-stdlib.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/com.google.j2objc.j2objc-annotations/com.google.j2objc.j2objc-annotations.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.brotli.dec/org.brotli.dec.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.checkerframework.checker-qual/org.checkerframework.checker-qual.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/androidx.lifecycle.lifecycle-viewmodel-android/androidx.lifecycle.lifecycle-viewmodel-android.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/androidx.lifecycle.lifecycle-runtime-ktx-android/androidx.lifecycle.lifecycle-runtime-ktx-android.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.jetbrains.kotlin.kotlin-stdlib/org.jetbrains.kotlin.kotlin-stdlib.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/com.google.j2objc.j2objc-annotations/com.google.j2objc.j2objc-annotations.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.brotli.dec/org.brotli.dec.csproj]
$HOME/.nuget/packages/microsoft.sbom.targets/3.1.0/buildMultiTargeting/Microsoft.Sbom.Targets.targets(57,5): warning MSB4220: Waiting for the currently executing task "GenerateSbom" to cancel. [./generated/org.checkerframework.checker-qual/org.checkerframework.checker-qual.csproj]
/

Screenshot:

[sfoslund]

I suspect that the cancellation issue here will be fixed by part of #933 (comment)

[baronfel]

@sfoslund I introduced the cancellation support, but there's quite a bit more to get it really working end-to-end - even with my addition, once we enter the actual execution of the workflow cancellation doesn't stop the work. The Generate method needs to have CancellationToken support plumbed down into it, up to and including the invocation of the component-detection calls, etc.

[SimonCropp]

my guess as to the hang is the use of a .GetAwaiter().GetResult() inside an msbuild task