WARNING: Potential build performance issue in 'IntegrationTestBuildProject.csproj'. The project does not appear up-to-date after a successful build: Output 'D:\github\roslyn\artifacts\bin\IntegrationTestBuildProject\Debug\net45\IntegrationTestBuildProject.dll' does not exist, not up-to-date. See https://aka.ms/incremental-build-failure.
========== Rebuild All: 207 succeeded, 0 failed, 0 skipped ==========
========== Rebuild completed at 2:10 PM and took 03:20.100 minutes ==========
Second time causes roslyn to rebuild 30 projects, even though nothing has changed:
Using:
Repro steps.
First time succeeds with:
Second time causes roslyn to rebuild 30 projects, even though nothing has changed: