I was importing a number of pages into my local wiki, and received these two warnings:
```
( ! ) Deprecated: Use of SyntaxHighlight_GeSHi::prepare is deprecated. [Called from ScribuntoContent::fillParserOutput in /vagrant/mediawiki/extensions/Scribunto/common/ScribuntoContent.php at line 123] in /vagrant/mediawiki/includes/debug/MWDebug.php on line 300
Call Stack
# Time Memory Function Location
1 0.0000 247216 {main}( ) ../index.php:0
2 0.0007 260200 require( '/vagrant/mediawiki/index.php' ) ../index.php:5
3 0.0514 3853656 MediaWiki->run( ) ../index.php:43
4 0.0514 3854856 MediaWiki->main( ) ../MediaWiki.php:517
5 0.0766 4137768 MediaWiki->performRequest( ) ../MediaWiki.php:745
6 0.0830 4399536 SpecialPageFactory::executePath( ) ../MediaWiki.php:280
7 0.0832 4402192 SpecialPage->run( ) ../SpecialPageFactory.php:564
8 0.0875 4495784 SpecialImport->execute( ) ../SpecialPage.php:384
9 0.1582 6353592 SpecialImport->doImport( ) ../SpecialImport.php:104
10 0.1953 6507784 WikiImporter->doImport( ) ../SpecialImport.php:214
11 83.7944 14830712 WikiImporter->handlePage( ) ../WikiImporter.php:567
12 83.8092 14836216 WikiImporter->handleRevision( ) ../WikiImporter.php:759
13 83.8168 14841800 WikiImporter->processRevision( ) ../WikiImporter.php:817
14 83.8219 14861656 WikiImporter->revisionCallback( ) ../WikiImporter.php:895
15 83.8219 14862096 call_user_func_array ( ) ../WikiImporter.php:473
16 83.8219 14862128 WikiImporter->importRevision( ) ../WikiImporter.php:473
17 83.8220 14862744 DatabaseBase->deadlockLoop( ) ../WikiImporter.php:336
18 83.8336 14856120 call_user_func_array ( ) ../Database.php:2402
19 83.8336 14856288 WikiRevision->importOldRevision( ) ../Database.php:2402
20 83.8834 14890776 WikiPage->doEditUpdates( ) ../WikiRevision.php:555
21 83.8867 14891752 WikiPage->prepareContentForEdit( ) ../WikiPage.php:2220
22 83.9013 14923056 AbstractContent->getParserOutput( ) ../WikiPage.php:2161
23 83.9015 14924872 ScribuntoContent->fillParserOutput( ) ../AbstractContent.php:497
24 83.9405 15592560 SyntaxHighlight_GeSHi::prepare( ) ../ScribuntoContent.php:123
25 83.9405 15592640 wfDeprecated( ) ../SyntaxHighlight_GeSHi.class.php:491
26 83.9405 15593048 MWDebug::deprecated( ) ../GlobalFunctions.php:1180
27 83.9406 15599168 MWDebug::sendMessage( ) ../MWDebug.php:233
28 83.9406 15599472 trigger_error ( ) ../MWDebug.php:300
(10.0.2.15)
( ! ) Deprecated: Use of SyntaxHighlight_GeSHi::buildHeadItem is deprecated. [Called from ScribuntoContent::fillParserOutput in /vagrant/mediawiki/extensions/Scribunto/common/ScribuntoContent.php at line 136] in /vagrant/mediawiki/includes/debug/MWDebug.php on line 300
Call Stack
# Time Memory Function Location
1 0.0000 247216 {main}( ) ../index.php:0
2 0.0007 260200 require( '/vagrant/mediawiki/index.php' ) ../index.php:5
3 0.0514 3853656 MediaWiki->run( ) ../index.php:43
4 0.0514 3854856 MediaWiki->main( ) ../MediaWiki.php:517
5 0.0766 4137768 MediaWiki->performRequest( ) ../MediaWiki.php:745
6 0.0830 4399536 SpecialPageFactory::executePath( ) ../MediaWiki.php:280
7 0.0832 4402192 SpecialPage->run( ) ../SpecialPageFactory.php:564
8 0.0875 4495784 SpecialImport->execute( ) ../SpecialPage.php:384
9 0.1582 6353592 SpecialImport->doImport( ) ../SpecialImport.php:104
10 0.1953 6507784 WikiImporter->doImport( ) ../SpecialImport.php:214
11 83.7944 14830712 WikiImporter->handlePage( ) ../WikiImporter.php:567
12 83.8092 14836216 WikiImporter->handleRevision( ) ../WikiImporter.php:759
13 83.8168 14841800 WikiImporter->processRevision( ) ../WikiImporter.php:817
14 83.8219 14861656 WikiImporter->revisionCallback( ) ../WikiImporter.php:895
15 83.8219 14862096 call_user_func_array ( ) ../WikiImporter.php:473
16 83.8219 14862128 WikiImporter->importRevision( ) ../WikiImporter.php:473
17 83.8220 14862744 DatabaseBase->deadlockLoop( ) ../WikiImporter.php:336
18 83.8336 14856120 call_user_func_array ( ) ../Database.php:2402
19 83.8336 14856288 WikiRevision->importOldRevision( ) ../Database.php:2402
20 83.8834 14890776 WikiPage->doEditUpdates( ) ../WikiRevision.php:555
21 83.8867 14891752 WikiPage->prepareContentForEdit( ) ../WikiPage.php:2220
22 83.9013 14923056 AbstractContent->getParserOutput( ) ../WikiPage.php:2161
23 83.9015 14924872 ScribuntoContent->fillParserOutput( ) ../AbstractContent.php:497
24 84.0811 15800704 SyntaxHighlight_GeSHi::buildHeadItem( ) ../ScribuntoContent.php:136
25 84.0811 15800752 wfDeprecated( ) ../SyntaxHighlight_GeSHi.class.php:497
26 84.0811 15800944 MWDebug::deprecated( ) ../GlobalFunctions.php:1180
27 84.0813 15802576 MWDebug::sendMessage( ) ../MWDebug.php:233
28 84.0813 15802880 trigger_error ( ) ../MWDebug.php:300
(10.0.2.15)
```