Bug#825355: firefox-esr: FTBFS on arm64: Error while running startup cache precompilation

[Emilio Pozuelo Monfort]

Source: firefox-esr
Version: 45.1.1esr-1
Severity: serious

Hi,

firefox-esr failed to build on arm64:

Executing /«PKGBUILDDIR»/build-browser/dist/bin/xpcshell -g /«PKGBUILDDIR»/build-browser/dist/bin/ -a /«PKGBUILDDIR»/build-browser/dist/bin/ -f /«PKGBUILDDIR»/toolkit/mozapps/installer/precompile_cache.js -e precompile_startupcache("resource://gre/");
resource://gre/components/ActivityMessageConfigurator.js
resource://gre/modules/commonjs/sdk/ui/sidebar/contract.js
[...]
resource://gre/modules/workers/require.js
ERROR!! RequestSyncService - Failed to retrieve data from the database.
Executing /«PKGBUILDDIR»/build-browser/dist/bin/xpcshell -g /«PKGBUILDDIR»/build-browser/dist/bin/ -a /«PKGBUILDDIR»/build-browser/dist/bin/browser -f /«PKGBUILDDIR»/toolkit/mozapps/installer/precompile_cache.js -e precompile_startupcache("resource://app/");
resource://app/components/ChromeProfileMigrator.js
resource://app/components/ExperimentsService.js
[...]
resource://app/modules/Chat.jsm
resource://app/modules/ContentClick.jsm
Traceback (most recent call last):
  File "/«PKGBUILDDIR»/toolkit/mozapps/installer/packager.py", line 406, in <module>
    main()
  File "/«PKGBUILDDIR»/toolkit/mozapps/installer/packager.py", line 400, in main
    args.source, gre_path, base)
  File "/«PKGBUILDDIR»/toolkit/mozapps/installer/packager.py", line 161, in precompile_cache
    errors.fatal('Error while running startup cache precompilation')
  File "/«PKGBUILDDIR»/python/mozbuild/mozpack/errors.py", line 103, in fatal
    self._handle(self.FATAL, msg)
  File "/«PKGBUILDDIR»/python/mozbuild/mozpack/errors.py", line 98, in _handle
    raise ErrorMessage(msg)
mozpack.errors.ErrorMessage: Error: Error while running startup cache precompilation
/«PKGBUILDDIR»/toolkit/mozapps/installer/packager.mk:41: recipe for target 'stage-package' failed

Logs at https://buildd.debian.org/status/logs.php?pkg=firefox-esr&ver=45.1.1esr-1%2Bb1&arch=arm64

Cheers,
Emilio