Cake recently released v1.0.0 and quickly followed with v1.1.0. We are currently using v0.38.4 (the release prior to v1.0.0). We should upgrade our builds to use the official stable release of Cake.Tool as fixes are unlikely to be made to v0.38.x going forward.

Note that if we do, we may need to modify the build.ps1 bootstrapper to pin to the NuGet client to 5.7.1 as done in this PR to workaround the empty default NuGet.Config file issue on Evergreen:

https://github.com/mongodb/mongo-csharp-driver/pull/514

See https://github.com/NuGet/NuGet.Client/pull/3907 for details on this change.