Hm, Chocolatey is being annoying...

azure-pipelines/windows-setup-mingw.yml

@@ -5,6 +5,9 @@ parameters:
 
 steps:
 - powershell: |
+    WriteError "$env:ChocolateyInstall"
+    dir "$env:ChocolateyInstall" | Write-Error
+    dir "$env:ChocolateyInstall\lib" | Write-Error
     $chocopath = where.exe choco.exe | Get-Item
     # apparently they didn't think to add this functionality from the start (multiple joins was only added in PowerShell 6 and Azure Pipelines is using 5.x), and the direct-CLR approach actually behaves differently (and I would need to check which version of .net Azure Pipelines is using anyway, since our use case isn't one of those cases where it behaves differently)
     $chocopath = Join-Path -Path $chocopath.Directory -ChildPath "install" | Join-Path -ChildPath "${{ parameters.which }}" | Join-Path -ChildPath "bin"