Minor Description
Travis builds of .NET seem instable. Some of that instability is out of our control and bound to the travis environment but I've noticed at least one odd pattern of failure around these tests:
Failures and skipped scenarios: 1) g_V_constantXnullX: Failed System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.ArgumentNullException: Value cannot be null. (Parameter 'key') at System.Collections.Generic.Dictionary`2.FindEntry(TKey key) at System.Collections.Generic.Dictionary`2.TryGetValue(TKey key, TValue& value) at Gremlin.Net.Process.Traversal.Bindings.GetBoundVariable[TV](TV value) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bindings.cs:line 66 at Gremlin.Net.Process.Traversal.Bytecode.ConvertArgument(Object argument, Boolean searchBindings) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 113 at Gremlin.Net.Process.Traversal.Bytecode.FlattenArguments(Object[] arguments) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 105 at Gremlin.Net.Process.Traversal.Bytecode.AddStep(String stepName, Object[] args) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 88 at Gremlin.Net.Process.Traversal.GraphTraversal`2.Constant[E2](E2 e) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/GraphTraversal.cs:line 428 --- End of inner exception stack trace --- at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor, Boolean wrapExceptions) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) at Gremlin.Net.IntegrationTest.Gherkin.TraversalEvaluation.TraversalParser.GetTraversalFromTokens(IList`1 tokens, GraphTraversalSource g, IDictionary`2 contextParameterValues, String traversalText) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/TraversalEvaluation/TraversalParser.cs:line 78 at Gremlin.Net.IntegrationTest.Gherkin.TraversalEvaluation.TraversalParser.GetTraversal(String traversalText, GraphTraversalSource g, IDictionary`2 contextParameterValues) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/TraversalEvaluation/TraversalParser.cs:line 69 at Gremlin.Net.IntegrationTest.Gherkin.CommonSteps.TranslateTraversal(String traversalText) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/CommonSteps.cs:line 108 2) g_V_outE_propertyXweight_nullX: Failed System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.ArgumentNullException: Value cannot be null. (Parameter 'key') at System.Collections.Generic.Dictionary`2.FindEntry(TKey key) at System.Collections.Generic.Dictionary`2.TryGetValue(TKey key, TValue& value) at Gremlin.Net.Process.Traversal.Bindings.GetBoundVariable[TV](TV value) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bindings.cs:line 66 at Gremlin.Net.Process.Traversal.Bytecode.ConvertArgument(Object argument, Boolean searchBindings) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 113 at Gremlin.Net.Process.Traversal.Bytecode.FlattenArguments(Object[] arguments) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 105 at Gremlin.Net.Process.Traversal.Bytecode.AddStep(String stepName, Object[] args) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 88 at Gremlin.Net.Process.Traversal.GraphTraversal`2.Property(Object key, Object value, Object[] keyValues) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/GraphTraversal.cs:line 1265 --- End of inner exception stack trace --- at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor, Boolean wrapExceptions) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) at Gremlin.Net.IntegrationTest.Gherkin.TraversalEvaluation.TraversalParser.GetTraversalFromTokens(IList`1 tokens, GraphTraversalSource g, IDictionary`2 contextParameterValues, String traversalText) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/TraversalEvaluation/TraversalParser.cs:line 78 at Gremlin.Net.IntegrationTest.Gherkin.TraversalEvaluation.TraversalParser.GetTraversal(String traversalText, GraphTraversalSource g, IDictionary`2 contextParameterValues) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/TraversalEvaluation/TraversalParser.cs:line 69 at Gremlin.Net.IntegrationTest.Gherkin.CommonSteps.TranslateTraversal(String traversalText) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/CommonSteps.cs:line 108 3) g_V_mapXconstantXnullXX: Failed System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.ArgumentNullException: Value cannot be null. (Parameter 'key') at System.Collections.Generic.Dictionary`2.FindEntry(TKey key) at System.Collections.Generic.Dictionary`2.TryGetValue(TKey key, TValue& value) at Gremlin.Net.Process.Traversal.Bindings.GetBoundVariable[TV](TV value) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bindings.cs:line 66 at Gremlin.Net.Process.Traversal.Bytecode.ConvertArgument(Object argument, Boolean searchBindings) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 113 at Gremlin.Net.Process.Traversal.Bytecode.FlattenArguments(Object[] arguments) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 105 at Gremlin.Net.Process.Traversal.Bytecode.AddStep(String stepName, Object[] args) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 88 at Gremlin.Net.Process.Traversal.GraphTraversal`2.Constant[E2](E2 e) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/GraphTraversal.cs:line 428 at Gremlin.Net.Process.Traversal.__.Constant[E2](E2 a) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/__.cs:line 278 --- End of inner exception stack trace --- at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor, Boolean wrapExceptions) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) at Gremlin.Net.IntegrationTest.Gherkin.TraversalEvaluation.TraversalParser.GetTraversalFromTokens(IList`1 tokens, GraphTraversalSource g, IDictionary`2 contextParameterValues, String traversalText) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/TraversalEvaluation/TraversalParser.cs:line 78 at Gremlin.Net.IntegrationTest.Gherkin.TraversalEvaluation.StaticTraversalParameter.GetValue() in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/TraversalEvaluation/StaticTraversalParameter.cs:line 64 at Gremlin.Net.IntegrationTest.Gherkin.TraversalEvaluation.TraversalParser.BuildParameters(MethodInfo method, Token token, IDictionary`2& genericParameterTypes) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/TraversalEvaluation/TraversalParser.cs:line 247 at Gremlin.Net.IntegrationTest.Gherkin.TraversalEvaluation.TraversalParser.GetTraversalFromTokens(IList`1 tokens, GraphTraversalSource g, IDictionary`2 contextParameterValues, String traversalText) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/TraversalEvaluation/TraversalParser.cs:line 78 at Gremlin.Net.IntegrationTest.Gherkin.TraversalEvaluation.TraversalParser.GetTraversal(String traversalText, GraphTraversalSource g, IDictionary`2 contextParameterValues) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/TraversalEvaluation/TraversalParser.cs:line 69 at Gremlin.Net.IntegrationTest.Gherkin.CommonSteps.TranslateTraversal(String traversalText) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/CommonSteps.cs:line 108 4) g_V_hasLabelXpersonX_propertyXname_nullX: Failed System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.ArgumentNullException: Value cannot be null. (Parameter 'key') at System.Collections.Generic.Dictionary`2.FindEntry(TKey key) at System.Collections.Generic.Dictionary`2.TryGetValue(TKey key, TValue& value) at Gremlin.Net.Process.Traversal.Bindings.GetBoundVariable[TV](TV value) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bindings.cs:line 66 at Gremlin.Net.Process.Traversal.Bytecode.ConvertArgument(Object argument, Boolean searchBindings) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 113 at Gremlin.Net.Process.Traversal.Bytecode.FlattenArguments(Object[] arguments) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 105 at Gremlin.Net.Process.Traversal.Bytecode.AddStep(String stepName, Object[] args) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 88 at Gremlin.Net.Process.Traversal.GraphTraversal`2.Property(Object key, Object value, Object[] keyValues) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/GraphTraversal.cs:line 1265 --- End of inner exception stack trace --- at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor, Boolean wrapExceptions) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) at Gremlin.Net.IntegrationTest.Gherkin.TraversalEvaluation.TraversalParser.GetTraversalFromTokens(IList`1 tokens, GraphTraversalSource g, IDictionary`2 contextParameterValues, String traversalText) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/TraversalEvaluation/TraversalParser.cs:line 78 at Gremlin.Net.IntegrationTest.Gherkin.TraversalEvaluation.TraversalParser.GetTraversal(String traversalText, GraphTraversalSource g, IDictionary`2 contextParameterValues) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/TraversalEvaluation/TraversalParser.cs:line 69 at Gremlin.Net.IntegrationTest.Gherkin.CommonSteps.TranslateTraversal(String traversalText) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/CommonSteps.cs:line 108 5) g_addVXnullX_propertyXid_nullX: Failed System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.ArgumentNullException: Value cannot be null. (Parameter 'key') at System.Collections.Generic.Dictionary`2.FindEntry(TKey key) at System.Collections.Generic.Dictionary`2.TryGetValue(TKey key, TValue& value) at Gremlin.Net.Process.Traversal.Bindings.GetBoundVariable[TV](TV value) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bindings.cs:line 66 at Gremlin.Net.Process.Traversal.Bytecode.ConvertArgument(Object argument, Boolean searchBindings) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 113 at Gremlin.Net.Process.Traversal.Bytecode.FlattenArguments(Object[] arguments) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 105 at Gremlin.Net.Process.Traversal.Bytecode.AddStep(String stepName, Object[] args) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 88 at Gremlin.Net.Process.Traversal.GraphTraversalSource.AddV(ITraversal vertexLabelTraversal) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/GraphTraversalSource.cs:line 337 --- End of inner exception stack trace --- at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor, Boolean wrapExceptions) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) at Gremlin.Net.IntegrationTest.Gherkin.TraversalEvaluation.TraversalParser.GetTraversalFromTokens(IList`1 tokens, GraphTraversalSource g, IDictionary`2 contextParameterValues, String traversalText) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/TraversalEvaluation/TraversalParser.cs:line 78 at Gremlin.Net.IntegrationTest.Gherkin.TraversalEvaluation.TraversalParser.GetTraversal(String traversalText, GraphTraversalSource g, IDictionary`2 contextParameterValues) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/TraversalEvaluation/TraversalParser.cs:line 69 at Gremlin.Net.IntegrationTest.Gherkin.CommonSteps.TranslateTraversal(String traversalText) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/CommonSteps.cs:line 108 6) g_V_group_byXageX: Scenario ignored 7) g_injectXnull_1_3_nullX: Failed System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.ArgumentNullException: Value cannot be null. (Parameter 'key') at System.Collections.Generic.Dictionary`2.FindEntry(TKey key) at System.Collections.Generic.Dictionary`2.TryGetValue(TKey key, TValue& value) at Gremlin.Net.Process.Traversal.Bindings.GetBoundVariable[TV](TV value) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bindings.cs:line 66 at Gremlin.Net.Process.Traversal.Bytecode.ConvertArgument(Object argument, Boolean searchBindings) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 113 at Gremlin.Net.Process.Traversal.Bytecode.FlattenArguments(Object[] arguments) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 105 at Gremlin.Net.Process.Traversal.Bytecode.AddStep(String stepName, Object[] args) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 88 at Gremlin.Net.Process.Traversal.GraphTraversalSource.Inject[S](S[] starts) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/GraphTraversalSource.cs:line 350 --- End of inner exception stack trace --- at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor, Boolean wrapExceptions) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) at Gremlin.Net.IntegrationTest.Gherkin.TraversalEvaluation.TraversalParser.GetTraversalFromTokens(IList`1 tokens, GraphTraversalSource g, IDictionary`2 contextParameterValues, String traversalText) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/TraversalEvaluation/TraversalParser.cs:line 78 at Gremlin.Net.IntegrationTest.Gherkin.TraversalEvaluation.TraversalParser.GetTraversal(String traversalText, GraphTraversalSource g, IDictionary`2 contextParameterValues) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/TraversalEvaluation/TraversalParser.cs:line 69 at Gremlin.Net.IntegrationTest.Gherkin.CommonSteps.TranslateTraversal(String traversalText) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/CommonSteps.cs:line 108 8) g_injectX10_20_null_20_10_10X_groupCountXxX_dedup_asXyX_projectXa_bX_by_byXselectXxX_selectXselectXyXXX: Failed System.ArgumentNullException: Value cannot be null. (Parameter 'key') at System.Collections.Generic.Dictionary`2.FindEntry(TKey key) at System.Collections.Generic.Dictionary`2.TryGetValue(TKey key, TValue& value) at Gremlin.Net.Process.Traversal.Bindings.GetBoundVariable[TV](TV value) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bindings.cs:line 66 at Gremlin.Net.Process.Traversal.Bytecode.ConvertArgument(Object argument, Boolean searchBindings) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 113 at Gremlin.Net.Process.Traversal.Bytecode.FlattenArguments(Object[] arguments) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 105 at Gremlin.Net.Process.Traversal.Bytecode.AddStep(String stepName, Object[] args) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 88 at Gremlin.Net.Process.Traversal.GraphTraversalSource.Inject[S](S[] starts) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/GraphTraversalSource.cs:line 350 at Gremlin.Net.IntegrationTest.Gherkin.TraversalEvaluation.TraversalParser.<>c.<.cctor>b__23_1(GraphTraversalSource g) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/TraversalEvaluation/TraversalParser.cs:line 41 at Gremlin.Net.IntegrationTest.Gherkin.TraversalEvaluation.TraversalParser.GetTraversal(String traversalText, GraphTraversalSource g, IDictionary`2 contextParameterValues) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/TraversalEvaluation/TraversalParser.cs:line 69 at Gremlin.Net.IntegrationTest.Gherkin.CommonSteps.TranslateTraversal(String traversalText) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/CommonSteps.cs:line 108 9) g_injectXname_marko_age_nullX_selectXname_ageX: Failed System.ArgumentNullException: Value cannot be null. (Parameter 'key') at System.Collections.Generic.Dictionary`2.FindEntry(TKey key) at System.Collections.Generic.Dictionary`2.TryGetValue(TKey key, TValue& value) at Gremlin.Net.Process.Traversal.Bindings.GetBoundVariable[TV](TV value) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bindings.cs:line 66 at Gremlin.Net.Process.Traversal.Bytecode.ConvertArgument(Object argument, Boolean searchBindings) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 113 at Gremlin.Net.Process.Traversal.Bytecode.ConvertArgument(Object argument, Boolean searchBindings) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 128 at Gremlin.Net.Process.Traversal.Bytecode.FlattenArguments(Object[] arguments) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 105 at Gremlin.Net.Process.Traversal.Bytecode.AddStep(String stepName, Object[] args) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/Bytecode.cs:line 88 at Gremlin.Net.Process.Traversal.GraphTraversalSource.Inject[S](S[] starts) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/src/Gremlin.Net/Process/Traversal/GraphTraversalSource.cs:line 350 at Gremlin.Net.IntegrationTest.Gherkin.TraversalEvaluation.TraversalParser.<>c.<.cctor>b__23_2(GraphTraversalSource g) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/TraversalEvaluation/TraversalParser.cs:line 42 at Gremlin.Net.IntegrationTest.Gherkin.TraversalEvaluation.TraversalParser.GetTraversal(String traversalText, GraphTraversalSource g, IDictionary`2 contextParameterValues) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/TraversalEvaluation/TraversalParser.cs:line 69 at Gremlin.Net.IntegrationTest.Gherkin.CommonSteps.TranslateTraversal(String traversalText) in /home/travis/build/apache/tinkerpop/gremlin-dotnet/test/Gremlin.Net.IntegrationTest/Gherkin/CommonSteps.cs:line 108
I'm not sure if anything can be discerned from these stracktraces, but, if not, the next time they fail in this way I will be sure to grab the entire travis output.