Unexpectedly found nil while unwrapping an Optional value

Process completed with exit code 2.

'swift-clocks': /__w/SwiftPackageIndex-Server/SwiftPackageIndex-Server/.build/checkouts/swift-clocks/[email protected]:5:15: warning: 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageVersions:cLanguageStandard:cxxLanguageStandard:)' is deprecated: replaced by 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)'

'combine-schedulers': /__w/SwiftPackageIndex-Server/SwiftPackageIndex-Server/.build/checkouts/combine-schedulers/[email protected]:5:15: warning: 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageVersions:cLanguageStandard:cxxLanguageStandard:)' is deprecated: replaced by 'init(name:defaultLocalization:platforms:pkgConfig:providers:products:dependencies:targets:swiftLanguageModes:cLanguageStandard:cxxLanguageStandard:)'

'soto': found 1074 file(s) which are unhandled; explicitly declare them as resources or exclude from the target

'swift-algorithms': found 1 file(s) which are unhandled; explicitly declare them as resources or exclude from the target

'soto': found 1079 file(s) which are unhandled; explicitly declare them as resources or exclude from the target

'swiftsoup': found 4 file(s) which are unhandled; explicitly declare them as resources or exclude from the target

immutable value 'challengedResponse' was never used; consider replacing with '_' or removing it

result of call to 'signUp(username:password:attributes:clientMetadata:logger:on:)' is unused

initialization of immutable value 'response' was never used; consider replacing with assignment to '_' or removing it

immutable value 'error' was never used; consider replacing with '_' or removing it