Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/cache@v3. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

/home/runner/work/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/PreferImplicitCastingOfResult/PreferImplicitCastingOfResultCodeFixProvider.cs(36,90): warning CS8604: Possible null reference argument for parameter 'typeArgumentSyntax' in 'Task<Document> PreferImplicitCastingOfResultCodeFixProvider.RemoveExplicitTypeArgument(Document document, TypeArgumentListSyntax typeArgumentSyntax, CancellationToken cancellationToken)'. [/home/runner/work/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers.csproj]

/home/runner/work/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/PreferImplicitCastingOfResult/PreferImplicitCastingOfResultCodeFixProvider.cs(52,29): warning CS8631: The type 'Microsoft.CodeAnalysis.SyntaxNode?' cannot be used as type parameter 'TRoot' in the generic type or method 'SyntaxNodeExtensions.ReplaceNode<TRoot>(TRoot, SyntaxNode, SyntaxNode)'. Nullability of type argument 'Microsoft.CodeAnalysis.SyntaxNode?' doesn't match constraint type 'Microsoft.CodeAnalysis.SyntaxNode'. [/home/runner/work/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers.csproj]

/home/runner/work/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/PreferImplicitCastingOfResult/PreferImplicitCastingOfResultCodeFixProvider.cs(58,41): warning CS8604: Possible null reference argument for parameter 'oldNode' in 'SyntaxNode SyntaxNodeExtensions.ReplaceNode<SyntaxNode>(SyntaxNode root, SyntaxNode oldNode, SyntaxNode newNode)'. [/home/runner/work/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers.csproj]

/home/runner/work/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/PreferImplicitCastingOfResult/PreferImplicitCastingOfResultCodeFixProvider.cs(58,68): warning CS8604: Possible null reference argument for parameter 'newNode' in 'SyntaxNode SyntaxNodeExtensions.ReplaceNode<SyntaxNode>(SyntaxNode root, SyntaxNode oldNode, SyntaxNode newNode)'. [/home/runner/work/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers.csproj]

/home/runner/work/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/PreferImplicitCastingOfResult/PreferImplicitCastingOfResultCodeFixProvider.cs(60,40): warning CS8604: Possible null reference argument for parameter 'root' in 'Document Document.WithSyntaxRoot(SyntaxNode root)'. [/home/runner/work/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers.csproj]

/home/runner/work/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/UseResultValueWithoutCheck/ResultValueWalker.cs(182,58): warning CS8509: The switch expression does not handle all possible values of its input type (it is not exhaustive). For example, the pattern '_' is not covered. [/home/runner/work/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers.csproj]

/home/runner/work/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/UseResultValueWithoutCheck/ResultValueWalker.cs(187,17): warning CS0162: Unreachable code detected [/home/runner/work/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers.csproj]

/home/runner/work/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/UseResultValueWithoutCheck/ResultValueWalker.cs(226,37): warning CS8629: Nullable value type may be null. [/home/runner/work/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers.csproj]

/home/runner/work/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/PreferImplicitCastingOfResult/PreferImplicitCastingOfResult.cs(20,9): warning RS2001: Rule 'CFE0002' has a changed 'Category' or 'Severity' from the last release. Either revert the update(s) in source or add a new up-to-date entry to unshipped release file. (https://github.com/dotnet/roslyn-analyzers/blob/main/src/Microsoft.CodeAnalysis.Analyzers/ReleaseTrackingAnalyzers.Help.md) [/home/runner/work/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers/CSharpFunctionalExtensions.Analyzers.csproj]