first.log

Failed running /Applications/Unity/Unity.app/Contents/Frameworks/Tools/UnusedByteCodeStripper2/UnusedBytecodeStripper2.exe -out "/Developer/repos/git/fishing/Temp/StagingArea/Data/Managed" -l none -c link -x "/Applications/Unity/Unity.app/Contents/Frameworks/Tools/UnusedByteCodeStripper/native_link.xml" -f "/Applications/Unity/Unity.app/Contents/Frameworks/il2cpp/LinkerDescriptors" -x "/Developer/repos/git/fishing/Temp/StagingArea/Data/Managed/../platform_native_link.xml" -x "/Developer/repos/git/fishing/Temp/StagingArea/Data/methods_pointedto_by_uievents.xml" -d "/Developer/repos/git/fishing/Temp/StagingArea/Data/Managed" -a  "/Developer/repos/git/fishing/Temp/StagingArea/Data/Managed/Assembly-CSharp-firstpass.dll" -a  "/Developer/repos/git/fishing/Temp/StagingArea/Data/Managed/Assembly-CSharp.dll" -a  "/Developer/repos/git/fishing/Temp/StagingArea/Data/Managed/Assembly-UnityScript-firstpass.dll" -a  "/Developer/repos/git/fishing/Temp/StagingArea/Data/Managed/UnityEngine.UI.dll" -a  "/Developer/repos/git/fishing/Temp/StagingArea/Data/Managed/SampleClassLibrary.dll"

stdout:
Fatal error in Mono CIL Linker
Mono.Cecil.AssemblyResolutionException: Failed to resolve assembly: 'UnityEditor, Culture=neutral, PublicKeyToken=null'
  at Mono.Linker.LinkContext.Resolve (IMetadataScope scope) [0x00000] in <filename unknown>:0 
  at Mono.Linker.Steps.ResolveFromXmlStep.GetAssembly (Mono.Linker.LinkContext context, System.String assemblyName) [0x00000] in <filename unknown>:0 
  at Mono.Linker.Steps.ResolveFromXmlStep.ProcessAssemblies (Mono.Linker.LinkContext context, System.Xml.XPath.XPathNodeIterator iterator) [0x00000] in <filename unknown>:0 
  at Mono.Linker.Steps.ResolveFromXmlStep.Process () [0x00000] in <filename unknown>:0 
  at Mono.Linker.Steps.BaseStep.Process (Mono.Linker.LinkContext context) [0x00000] in <filename unknown>:0 
  at Mono.Linker.Pipeline.Process (Mono.Linker.LinkContext context) [0x00000] in <filename unknown>:0 
  at Mono.Linker.Driver.Run () [0x00000] in <filename unknown>:0 
  at Mono.Linker.Driver.RunDriver (Mono.Linker.Driver driver) [0x00000] in <filename unknown>:0 
stderr:

UnityEngine.Debug:LogError(Object)
UnityEditorInternal.Runner:RunManagedProgram(String, String, String, CompilerOutputParserBase) (at /Users/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:66)
UnityEditorInternal.AssemblyStripper:RunAssemblyLinker(IEnumerable`1, String&, String&, String, String) (at /Users/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:192)
UnityEditorInternal.AssemblyStripper:StripAssembliesTo(String, String, String&, String&, String, String, IEnumerable`1) (at /Users/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:185)
UnityEditorInternal.AssemblyStripper:Strip(String, String, String&, String&, String, String, IEnumerable`1) (at /Users/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:136)
UnityEditorInternal.AssemblyStripper:Strip(String[], String[], String, String, String&, String&, String, String, IEnumerable`1) (at /Users/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:121)
UnityEditorInternal.IL2CPPBuilder:RunAssemblyStripper(IEnumerable, String, String[], String[], String) (at /Users/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:445)
UnityEditorInternal.IL2CPPBuilder:StripAssemblies(String[], String) (at /Users/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:433)
UnityEditorInternal.IL2CPPBuilder:Run() (at /Users/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:273)
UnityEditorInternal.IL2CPPUtils:RunIl2Cpp(String, String, IIl2CppPlatformProvider, Action`1, RuntimeClassRegistry) (at /Users/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:211)
UnityEditor.HostView:OnGUI()

second.log

Exception: /Applications/Unity/Unity.app/Contents/Frameworks/Tools/UnusedByteCodeStripper2/UnusedBytecodeStripper2.exe did not run properly!
UnityEditorInternal.Runner.RunManagedProgram (System.String exe, System.String args, System.String workingDirectory, UnityEditor.Scripting.Compilers.CompilerOutputParserBase parser) (at /Users/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:68)
UnityEditorInternal.AssemblyStripper.RunAssemblyLinker (IEnumerable`1 args, System.String& out, System.String& err, System.String linkerPath, System.String workingDirectory) (at /Users/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:192)
UnityEditorInternal.AssemblyStripper.StripAssembliesTo (System.String outputFolder, System.String workingDirectory, System.String& output, System.String& error, System.String linkerPath, System.String descriptorsFolder, IEnumerable`1 additionalBlacklist) (at /Users/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:185)
UnityEditorInternal.AssemblyStripper.Strip (System.String outputFolder, System.String workingDirectory, System.String& output, System.String& error, System.String monoLinkerPath, System.String descriptorsFolder, IEnumerable`1 additionalBlacklist) (at /Users/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:136)
UnityEditorInternal.AssemblyStripper.Strip (System.String[] assemblies, System.String[] searchDirs, System.String outputFolder, System.String workingDirectory, System.String& output, System.String& error, System.String monoLinkerPath, System.String descriptorsFolder, IEnumerable`1 additionalBlacklist) (at /Users/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:121)
UnityEditorInternal.IL2CPPBuilder.RunAssemblyStripper (IEnumerable assemblies, System.String managedAssemblyFolderPath, System.String[] assembliesToStrip, System.String[] searchDirs, System.String monoLinkerPath) (at /Users/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:445)
UnityEditorInternal.IL2CPPBuilder.StripAssemblies (System.String[] assemblies, System.String managedAssemblyFolderPath) (at /Users/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:433)
UnityEditorInternal.IL2CPPBuilder.Run () (at /Users/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:273)
UnityEditorInternal.IL2CPPUtils.RunIl2Cpp (System.String tempFolder, System.String stagingAreaData, IIl2CppPlatformProvider platformProvider, System.Action`1 modifyOutputBeforeCompile, UnityEditor.RuntimeClassRegistry runtimeClassRegistry) (at /Users/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:211)
UnityEditor.iOS.PostProcessiPhonePlayer.PostProcess (UnityEditor.iOS.iOSBuildPostprocessor pp, BuildTarget target, System.String stagingAreaData, System.String stagingArea, System.String stagingAreaDataManaged, System.String playerPackage, System.String installPath, System.String companyName, System.String productName, BuildOptions options, UnityEditor.RuntimeClassRegistry usedClassRegistry)
UnityEditor.iOS.iOSBuildPostprocessor.PostProcess (BuildPostProcessArgs args)
UnityEditor.PostprocessBuildPlayer.Postprocess (BuildTarget target, System.String installPath, System.String companyName, System.String productName, Int32 width, Int32 height, System.String downloadWebplayerUrl, System.String manualDownloadWebplayerUrl, BuildOptions options, UnityEditor.RuntimeClassRegistry usedClassRegistry) (at /Users/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/PostprocessBuildPlayer.cs:316)
UnityEditor.HostView:OnGUI()