fix tests and install clippy with rustup

Author: Steve Lee (POWERSHELL HE/HIM) (from Dev Box)

build.ps1

@@ -243,10 +243,10 @@ if ($null -ne $packageType) {
         } else {
             if ($architecture -ne 'current') {
                 write-verbose -verbose "Installing clippy for $architecture"
-                & $rustup component add clippy --target $architecture
+                rustup component add clippy --target $architecture
             } else {
                 write-verbose -verbose "Installing clippy for current architecture"
-                & $rustup component add clippy
+                rustup component add clippy
             }
         }
         if ($LASTEXITCODE -ne 0) {

dsc/tests/dsc_extension_discover.tests.ps1

@@ -133,11 +133,11 @@ Describe 'Discover extension tests' {
         try {
             # exclude finding powershell.exe
             $oldPath = $env:PATH
-            $env:PATH = $env:PATH="$env:PROGRAMFILES\PowerShell\7"
+            $env:PATH = "$env:PROGRAMFILES\PowerShell\7"
             $out = dsc resource list 2> $TestDrive/error.log | ConvertFrom-Json
             $LASTEXITCODE | Should -Be 0
             $out.Count | Should -BeGreaterThan 0
-            (Get-Content -Path "$TestDrive/error.log" -Raw) | Should -BeLike "WARN Extension 'Microsoft.Windows.Appx/Discover' failed to discover resources: Command: Operation program not found for executable 'powershell'" -Because (Get-Content -Path "$TestDrive/error.log" -Raw | Out-String)
+            (Get-Content -Path "$TestDrive/error.log" -Raw) | Should -BeLike "*WARN Extension 'Microsoft.Windows.Appx/Discover' failed to discover resources: Command: Operation program not found for executable 'powershell'*" -Because (Get-Content -Path "$TestDrive/error.log" -Raw | Out-String)
         } finally {
             $env:PATH = $oldPath
         }

dsc_lib/src/discovery/command_discovery.rs

@@ -313,7 +313,7 @@ impl ResourceDiscovery for CommandDiscovery {
                         let discovered_resources = match extension.discover() {
                             Ok(res) => res,
                             Err(e) => {
-                                warn!("{}", t!("discovery.commandDiscovery.extensionDiscoverFailed", extension = extension.type_name, error = e).to_string());
+                                warn!("{}", t!("discovery.commandDiscovery.extensionDiscoverFailed", extension = extension.type_name, error = e));
                                 continue;
                             }
                         };