Build broken

[nblumhardt]

https://ci.appveyor.com/project/serilog/serilog-sinks-console/branch/master

Reporting System.Linq doesn't exist, but the issue can't be fixed on my machine by adding a package reference or anything like it.

Both dev and master; although the latest dev build succeeded, checking it out and attempting to build on my machine produces the same result.

Guessing it's an interaction between our use of <DisableImplicitFrameworkReferences>true</DisableImplicitFrameworkReferences> and the new/2.0 dotnet tooling.