Many inspector tests are failing a new assert added with https://trac.webkit.org/changeset/273832/webkit SHOULD NEVER BE REACHED /Volumes/Data/worker/bigsur-debug/build/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.h(145) : void WebKit::NetworkConnectionToWebProcess::takeNetworkLoadInformationMetrics(WebKit::ResourceLoadIdentifier, CompletionHandler<void (const WebCore::NetworkLoadMetrics &)> &&) http/tests/inspector/dom/didFireEvent.html http/tests/inspector/dom/disconnect-dom-tree-after-main-frame-navigation.html http/tests/inspector/network/fetch-response-body-304.html http/tests/inspector/network/intercept-request-main-resource-with-response.html http/tests/inspector/network/intercept-request-subresource-with-response.html http/tests/inspector/network/intercept-request-with-response.html http/tests/inspector/network/local-resource-override-basic.html http/tests/inspector/network/resource-initiatorNode.html http/tests/inspector/network/resource-mime-type.html http/tests/inspector/network/resource-response-service-worker.html http/tests/inspector/network/resource-response-source-disk-cache.html http/tests/inspector/network/resource-response-source-memory-cache.html http/tests/inspector/network/resource-sizes-disk-cache.html http/tests/inspector/network/xhr-response-body.html http/tests/inspector/target/provisional-load-cancels-previous-load.html inspector/console/console-screenshot.html inspector/console/webcore-logging.html inspector/css/stylesheet-events-multiple-documents.html inspector/debugger/async-stack-trace-basic.html inspector/dom-debugger/url-breakpoints-containing.html inspector/dom-debugger/url-breakpoints.html inspector/page/setBootstrapScript-sub-frame.html inspector/worker/debugger-shared-breakpoint.html inspector/worker/dom-debugger-event-animation-frame-breakpoints.html inspector/worker/dom-debugger-event-listener-breakpoints.html inspector/worker/dom-debugger-url-breakpoints.html https://build.webkit.org/results/Apple-BigSur-Debug-WK2-Tests/r273832%20(488)/results.html