Xcode canvas for SwiftUI always fail

[Zeta611]

Version

077c096

Environment

macOS 10.15.4 + Xcode 11.4.1

Description

Xcode's canvas won't preview SwiftUI view when adding SwiftCheck to the test target dependency.

Steps To Reproduce

From Xcode File > Swift Packages > Add Package Dependency add Swift Check. Select test target.
Go to ContentView.swift default template file.

Expected Result

Preview should build and show "Hello, World!"

Actual Result

Xcode fails to build preview.
However, Simulator runs fine.

Additional information

When I click 'diagnostics', it shows the following:

'disabled' is only available in iOS 10.0 or newer

----------------------------------------

SchemeBuildError: Failed to build the scheme "test"

Compile Swift source files:
warning: Could not read serialized diagnostics file: Invalid File: Invalid diagnostics signature (in target 'TSCBasic' from project 'swift-tools-support-core')
warning: Could not read serialized diagnostics file: Invalid File: Invalid diagnostics signature (in target 'TSCBasic' from project 'swift-tools-support-core')
warning: Could not read serialized diagnostics file: Invalid File: Invalid diagnostics signature (in target 'TSCBasic' from project 'swift-tools-support-core')
warning: Could not read serialized diagnostics file: Invalid File: Invalid diagnostics signature (in target 'TSCBasic' from project 'swift-tools-support-core')


Compile /Users/jay/Library/Developer/Xcode/DerivedData/test-fuoxsdzrmdjcfdbltcfeaqoxrdxv/SourcePackages/checkouts/swift-tools-support-core/Sources/TSCBasic/OSLog.swift:
/Users/jay/Library/Developer/Xcode/DerivedData/test-fuoxsdzrmdjcfdbltcfeaqoxrdxv/SourcePackages/checkouts/swift-tools-support-core/Sources/TSCBasic/OSLog.swift:52:35: error: 'disabled' is only available in iOS 10.0 or newer
            return OSLog(os.OSLog.disabled)
                                  ^
/Users/jay/Library/Developer/Xcode/DerivedData/test-fuoxsdzrmdjcfdbltcfeaqoxrdxv/SourcePackages/checkouts/swift-tools-support-core/Sources/TSCBasic/OSLog.swift:52:35: note: add 'if #available' version check
            return OSLog(os.OSLog.disabled)
                                  ^
...

[Zeta611]

This happened because Xcode resolved the test packages of SwiftCheck as well. This is updated with Xcode 11.4 + tools version 5.2. I forked the repo and changed the version to 5.2, and voila, it worked like charm. I'm opening a pull request for this fix.