manish@manish-Lenovo-B50-80:~/GSoC/src/mozilla-central$ ./mach build faster
 0:04.14 /usr/bin/make -C /home/manish/GSoC/src/mozilla-central/obj-x86_64-pc-linux-gnu -j4 -s backend
 0:14.31 /usr/bin/make -C faster -j4 -s
 0:14.39 toolkit/components/featuregates/feature_definitions.json.stub
 0:14.42 toolkit/locales/multilocale.txt.stub
 0:14.44 toolkit/components/telemetry/ScalarArtifactDefinitions.json.stubtoolkit/components/telemetry/EventArtifactDefinitions.json.stub
 0:14.83 toolkit/locales/update.locale.stub
 0:14.89 toolkit/mozapps/extensions/built_in_addons.json.stub
 0:14.94 make[1]: *** No rule to make target '../../security/nss/lib/crmf/crmf_crmf/libcrmf.a', needed by 'libxul.so'.  Stop.
 0:14.94 /home/manish/GSoC/src/mozilla-central/config/faster/rules.mk:81: recipe for target '/home/manish/GSoC/src/mozilla-central/obj-x86_64-pc-linux-gnu/toolkit/library/dependentlibs.list' failed
 0:14.94 make: *** [/home/manish/GSoC/src/mozilla-central/obj-x86_64-pc-linux-gnu/toolkit/library/dependentlibs.list] Error 2
 0:14.94 make: *** Waiting for unfinished jobs....
 0:15.63 270 compiler warnings present.
manish@manish-Lenovo-B50-80:~/GSoC/src/mozilla-central$