NotSupportedException when trying to evaluate DateTime in FirstOrDefault condition

[darkms]

var table = l2dd.GetTable();

var utcNow = DateTime.UtcNow;
var newRecord = new TestRecord
{
ByMinutePartition = StripToMinutes(utcNow),
ExactTime = utcNow,
Id = Guid.NewGuid()
};
table.InsertOnSubmit(newRecord);
l2dd.SubmitChanges();

var e = table.FirstOrDefault(record => record.ByMinutePartition >= newRecord.ByMinutePartition.AddMinutes(-1) && record.ByMinutePartition <= record.ByMinutePartition.AddMinutes(1));

ByMinutePartition field is of type DateTime. StripToMinutes simply Subtracts Seconds and Milliseconds from DateTime.
Expected it to be transformed into valid scan request with +-1 minute boundaries, but instead got exception:
Version: 1.4.0

An unhandled exception of type 'System.NotSupportedException' occurred in Linq2DynamoDb.DataContext.dll

Additional information: The method 'AddMinutes' is not supported
at Linq2DynamoDb.DataContext.ExpressionUtils.WhereVisitor.VisitMethodCall(MethodCallExpression methodCallExp) in c:\Konst\projects\LINQ2DynamoDB\Sources\Linq2DynamoDb.DataContext\ExpressionUtils\WhereVisitor.cs:line 148
at System.Linq.Expressions.MethodCallExpression.Accept(ExpressionVisitor visitor)
at System.Linq.Expressions.ExpressionVisitor.Visit(Expression node)
at Linq2DynamoDb.DataContext.ExpressionUtils.WhereVisitor.VisitBinary(BinaryExpression binaryExp) in c:\Konst\projects\LINQ2DynamoDB\Sources\Linq2DynamoDb.DataContext\ExpressionUtils\WhereVisitor.cs:line 113
at System.Linq.Expressions.BinaryExpression.Accept(ExpressionVisitor visitor)
at System.Linq.Expressions.ExpressionVisitor.Visit(Expression node)
at Linq2DynamoDb.DataContext.ExpressionUtils.WhereVisitor.VisitBinary(BinaryExpression binaryExp) in c:\Konst\projects\LINQ2DynamoDB\Sources\Linq2DynamoDb.DataContext\ExpressionUtils\WhereVisitor.cs:line 113
at System.Linq.Expressions.BinaryExpression.Accept(ExpressionVisitor visitor)
at System.Linq.Expressions.ExpressionVisitor.Visit(Expression node)
at Linq2DynamoDb.DataContext.ExpressionUtils.QueryableMethodsVisitor.VisitWhereCall(Expression whereBodyExp) in c:\Konst\projects\LINQ2DynamoDB\Sources\Linq2DynamoDb.DataContext\ExpressionUtils\QueryableMethodsVisitor.cs:line 35
at Linq2DynamoDb.DataContext.ExpressionUtils.QueryableMethodsVisitor.VisitMethodCall(MethodCallExpression methodCallExp) in c:\Konst\projects\LINQ2DynamoDB\Sources\Linq2DynamoDb.DataContext\ExpressionUtils\QueryableMethodsVisitor.cs:line 88
at System.Linq.Expressions.MethodCallExpression.Accept(ExpressionVisitor visitor)
at System.Linq.Expressions.ExpressionVisitor.Visit(Expression node)
at Linq2DynamoDb.DataContext.ExpressionUtils.QueryableMethodsVisitor.VisitMethodArgs(ReadOnlyCollection1 original) in c:\Konst\projects\LINQ2DynamoDB\Sources\Linq2DynamoDb.DataContext\ExpressionUtils\QueryableMethodsVisitor.cs:line 123 at Linq2DynamoDb.DataContext.ExpressionUtils.QueryableMethodsVisitor.VisitMethodCall(MethodCallExpression methodCallExp) in c:\Konst\projects\LINQ2DynamoDB\Sources\Linq2DynamoDb.DataContext\ExpressionUtils\QueryableMethodsVisitor.cs:line 78 at System.Linq.Expressions.MethodCallExpression.Accept(ExpressionVisitor visitor) at System.Linq.Expressions.ExpressionVisitor.Visit(Expression node) at Linq2DynamoDb.DataContext.QueryProvider.ExecuteQuery(Expression expression) in c:\Konst\projects\LINQ2DynamoDB\Sources\Linq2DynamoDb.DataContext\QueryProvider.cs:line 55 at Linq2DynamoDb.DataContext.QueryProvider.System.Linq.IQueryProvider.Execute[TResult](Expression expression) in c:\Konst\projects\LINQ2DynamoDB\Sources\Linq2DynamoDb.DataContext\QueryProvider.cs:line 107 at System.Linq.Queryable.FirstOrDefault[TSource](IQueryable1 source, Expression`1 predicate)
at DynamoDbTimeoutStorageTest.Program.Main(String[] args) in c:\Users\Umnov\Documents\Visual Studio 2013\Projects\DynamoDbTimeoutStorageTest\DynamoDbTimeoutStorageTest\Program.cs:line 45
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()