[2023-05-26 21:26:24] EXCEPTION: (RuntimeException) preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated at [<arcanist>/src/error/PhutilErrorHandler.php:261]
arcanist(head=master, ref.master=0e32dbc1ac8f), phorge(head=diffusionRepoPage, ref.master=5405134fa5db, ref.diffusionRepoPage=dbe5e3a68c41)
  #0 <#2> PhutilErrorHandler::handleError(integer, string, string, integer) called at [<arcanist>/src/error/PhutilErrorHandler.php:261]
  #1 <#2> preg_match(string, NULL) called at [<phorge>/src/applications/herald/typeahead/HeraldRuleDatasource.php:25]
  #2 <#2> HeraldRuleDatasource::loadResults() called at [<phorge>/src/applications/typeahead/datasource/PhabricatorTypeaheadDatasource.php:142]
  #3 <#2> PhabricatorTypeaheadDatasource::loadResultsForPhase(string, integer) called at [<phorge>/src/applications/typeahead/datasource/PhabricatorTypeaheadCompositeDatasource.php:136]
  #4 <#2> PhabricatorTypeaheadCompositeDatasource::loadResultsForPhase(string, integer) called at [<phorge>/src/applications/typeahead/datasource/PhabricatorTypeaheadCompositeDatasource.php:48]
  #5 <#2> PhabricatorTypeaheadCompositeDatasource::loadResults() called at [<phorge>/src/applications/typeahead/controller/PhabricatorTypeaheadModularDatasourceController.php:91]
  #6 <#2> PhabricatorTypeaheadModularDatasourceController::handleRequest(AphrontRequest) called at [<phorge>/src/aphront/configuration/AphrontApplicationConfiguration.php:284]
  #7 phlog(RuntimeException) called at [<phorge>/src/aphront/handler/PhabricatorDefaultRequestExceptionHandler.php:41]
  #8 PhabricatorDefaultRequestExceptionHandler::handleRequestThrowable(AphrontRequest, RuntimeException) called at [<phorge>/src/aphront/configuration/AphrontApplicationConfiguration.php:751]
  #9 AphrontApplicationConfiguration::handleThrowable(RuntimeException) called at [<phorge>/src/aphront/configuration/AphrontApplicationConfiguration.php:296]
  #10 AphrontApplicationConfiguration::processRequest(AphrontRequest, PhutilDeferredLog, AphrontPHPHTTPSink, MultimeterControl) called at [<phorge>/src/aphront/configuration/AphrontApplicationConfiguration.php:203]
  #11 AphrontApplicationConfiguration::runHTTPRequest(AphrontPHPHTTPSink) called at [<phorge>/webroot/index.php:35]
[2023-05-26 21:26:24] EXCEPTION: (PhutilAggregateException) Encountered a processing exception, then another exception when trying to build a response for the first exception.
    - RuntimeException: file_exists(): Passing null to parameter #1 ($filename) of type string is deprecated
    - RuntimeException: preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated at [<phorge>/src/aphront/configuration/AphrontApplicationConfiguration.php:316]
arcanist(head=master, ref.master=0e32dbc1ac8f), phorge(head=diffusionRepoPage, ref.master=5405134fa5db, ref.diffusionRepoPage=dbe5e3a68c41)
  #0 <#4> preg_match(string, NULL) called at [<phorge>/src/applications/herald/typeahead/HeraldRuleDatasource.php:25]
  #1 <#4> HeraldRuleDatasource::loadResults() called at [<phorge>/src/applications/typeahead/datasource/PhabricatorTypeaheadDatasource.php:142]
  #2 <#4> PhabricatorTypeaheadDatasource::loadResultsForPhase(string, integer) called at [<phorge>/src/applications/typeahead/datasource/PhabricatorTypeaheadCompositeDatasource.php:136]
  #3 <#4> PhabricatorTypeaheadCompositeDatasource::loadResultsForPhase(string, integer) called at [<phorge>/src/applications/typeahead/datasource/PhabricatorTypeaheadCompositeDatasource.php:48]
  #4 <#4> PhabricatorTypeaheadCompositeDatasource::loadResults() called at [<phorge>/src/applications/typeahead/controller/PhabricatorTypeaheadModularDatasourceController.php:91]
  #5 <#4> PhabricatorTypeaheadModularDatasourceController::handleRequest(AphrontRequest) called at [<phorge>/src/aphront/configuration/AphrontApplicationConfiguration.php:284]
  #6 <#3> PhutilErrorHandler::handleError(integer, string, string, integer) called at [<arcanist>/src/error/PhutilErrorHandler.php:261]
  #7 <#3> file_exists(NULL) called at [<arcanist>/src/filesystem/Filesystem.php:1068]
  #8 <#3> Filesystem::pathExists(NULL) called at [<arcanist>/src/filesystem/Filesystem.php:1169]
  #9 <#3> Filesystem::assertExists(NULL) called at [<arcanist>/src/filesystem/Filesystem.php:1020]
  #10 <#3> Filesystem::isDescendant(NULL, string) called at [<phorge>/src/view/widget/AphrontStackTraceView.php:33]
  #11 <#3> AphrontStackTraceView::render() called at [<phorge>/src/view/AphrontView.php:222]
  #12 <#3> AphrontView::producePhutilSafeHTML() called at [<phorge>/src/infrastructure/markup/render.php:115]
  #13 <#3> phutil_escape_html(AphrontStackTraceView) called at [<phorge>/src/infrastructure/markup/render.php:139]
  #14 <#3> phutil_escape_html(array) called at [<phorge>/src/infrastructure/markup/render.php:97]
  #15 <#3> phutil_tag(string, array, array) called at [<phorge>/src/aphront/handler/PhabricatorDefaultRequestExceptionHandler.php:62]
  #16 <#3> PhabricatorDefaultRequestExceptionHandler::handleRequestThrowable(AphrontRequest, RuntimeException) called at [<phorge>/src/aphront/configuration/AphrontApplicationConfiguration.php:751]
  #17 <#3> AphrontApplicationConfiguration::handleThrowable(RuntimeException) called at [<phorge>/src/aphront/configuration/AphrontApplicationConfiguration.php:296]
  #18 <#2> AphrontApplicationConfiguration::processRequest(AphrontRequest, PhutilDeferredLog, AphrontPHPHTTPSink, MultimeterControl) called at [<phorge>/src/aphront/configuration/AphrontApplicationConfiguration.php:203]
  #19 <#2> AphrontApplicationConfiguration::runHTTPRequest(AphrontPHPHTTPSink) called at [<phorge>/webroot/index.php:35]
  #20 phlog(PhutilAggregateException) called at [<phorge>/src/aphront/response/AphrontUnhandledExceptionResponse.php:32]
  #21 AphrontUnhandledExceptionResponse::setException(PhutilAggregateException) called at [<phorge>/webroot/index.php:46]