[Webkit-unassigned] [Bug 214058] New: REGRESSION: (r263990): [ iOS Debug WK2 ] 12 web-platform-tests semantics/scripting consistently failing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=214058

            Bug ID: 214058
           Summary: REGRESSION: (r263990): [ iOS Debug WK2 ] 12
                    web-platform-tests semantics/scripting consistently
                    failing
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: iPhone / iPad
                OS: iOS 13
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: rackler at apple.com

imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-inline-classic.html
imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-inline-module.html
imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-success-empty-src-classic.html
imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-success-empty-src-module.html
imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-success-inline-module.html
imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-iframe-parse-error-inline-classic.html
imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-iframe-parse-error-inline-module.html
imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-iframe-success-empty-src-classic.html
imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-iframe-success-empty-src-module.html
imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-iframe-success-external-module.html
imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-iframe-success-inline-classic.html
imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-iframe-success-inline-module.html

Description:
These test are consistently failing on [ iOS Debug WK2 ].  They appear to have been failing since commit r263990.

History: 
https://results.webkit.org/?platform=ios&style=debug&flavor=wk2&limit=50000&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fhtml%2Fsemantics%2Fscripting-1%2Fthe-script-element%2Fmoving-between-documents%2Fbefore-prepare-iframe-parse-error-inline-classic.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fhtml%2Fsemantics%2Fscripting-1%2Fthe-script-element%2Fmoving-between-documents%2Fbefore-prepare-iframe-parse-error-inline-module.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fhtml%2Fsemantics%2Fscripting-1%2Fthe-script-element%2Fmoving-between-documents%2Fbefore-prepare-iframe-success-empty-src-classic.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fhtml%2Fsemantics%2Fscripting-1%2Fthe-script-element%2Fmoving-between-documents%2Fbefore-prepare-iframe-success-empty-src-module.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fhtml%2Fsemantics%2Fscripting-1%2Fthe-script-element%2Fmoving-between-documents%2Fbefore-prepare-iframe-success-external-module.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fhtml%2Fsemantics%2Fscripting-1%2Fthe-script-element%2Fmoving-between-documents%2Fbefore-prepare-iframe-success-inline-classic.html&test=imported%2Fw3c%2Fweb-platform-tests%2Fhtml%2Fsemantics%2Fscripting-1%2Fthe-script-element%2Fmoving-between-documents%2Fbefore-prepare-iframe-success-inline-module.html

Diff: 
--- /Volumes/Data/slave/ios-simulator-13-debug-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-inline-classic-expected.txt
+++ /Volumes/Data/slave/ios-simulator-13-debug-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-inline-classic-actual.txt
@@ -1,3 +1,4 @@
+CONSOLE MESSAGE: SyntaxError: Left side of assignment is not a reference.


 PASS Sanity check around top-level Window 


Reproduction: 
I can reproduce this on on tip of tree r264030.  I also am able to reproduce this on first seen instance of failure on r263993 and the commit before r263992.  It is also reproducible on r263990, where it appears to have begun. 

Commit: r264030

Command: run-webkit-tests --ios-simulator --debug --iterations 500 --exit-after-n-failures 3 --force -f imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-inline-classic.html

Results: 
[5/500] imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-inline-classic.html failed unexpectedly (text diff)
[5/500] imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-inline-classic.html failed unexpectedly (text diff)
[5/500] imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-inline-classic.html failed unexpectedly (text diff)
Exiting early after 3 failures. 3 tests run.

0 tests ran as expected, 3 didn't (497 didn't run):


Regressions: Unexpected text-only failures (1)
  imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-inline-classic.html [ Failure ]


Commit: r263992

Command: run-webkit-tests --ios-simulator --debug --iterations 500 --exit-after-n-failures 3 --force -f imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-inline-classic.html

Results: [5/500] imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-inline-classic.html failed unexpectedly (text diff)
[5/500] imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-inline-classic.html failed unexpectedly (text diff)
[5/500] imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-inline-classic.html failed unexpectedly (text diff)
Exiting early after 3 failures. 3 tests run.


0 tests ran as expected, 3 didn't (497 didn't run):


Regressions: Unexpected text-only failures (1)
  imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-inline-classic.html [ Failure ]

Commit: r263993

Command: run-webkit-tests --ios-simulator --debug --iterations 500 --exit-after-n-failures 3 --force -f imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-inline-classic.html

Results: [5/500] imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-inline-classic.html failed unexpectedly (text diff)
[5/500] imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-inline-classic.html failed unexpectedly (text diff)
[5/500] imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-inline-classic.html failed unexpectedly (text diff)
Exiting early after 3 failures. 3 tests run.


0 tests ran as expected, 3 didn't (497 didn't run):


Regressions: Unexpected text-only failures (1)
  imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-inline-classic.html [ Failure ]

Commit: r263990

Command: run-webkit-tests --ios-simulator --debug --iterations 500 --exit-after-n-failures 3 --force -f imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-inline-classic.html

Results: [5/500] imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-inline-classic.html failed unexpectedly (text diff)
[6/500] imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-inline-classic.html failed unexpectedly (text diff)
[7/500] imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-inline-classic.html failed unexpectedly (text diff)
Exiting early after 3 failures. 3 tests run.


0 tests ran as expected, 3 didn't (497 didn't run):


Regressions: Unexpected text-only failures (1)
  imported/w3c/web-platform-tests/html/semantics/scripting-1/the-script-element/moving-between-documents/before-prepare-createHTMLDocument-parse-error-inline-classic.html [ Failure ]

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