Fixed `No rule found` on some platforms.
Fixed `No rule found` on some platforms.

Summary:
`//test/com/facebook/buck/apple/BUCK` uses unsafe imports that's why `apple` and `apple_test_integration` targets are only available on `darwin` os which makes CI fail on any other platform.

to: Coneko dreiss
Closes https://github.com/facebook/buck/pull/936

Reviewed By: Coneko

fbshipit-source-id: 3ba572b

rmaz/buck,clonetwin26/buck,marcinkwiatkowski/buck,davido/buck,davido/buck,robbertvanginkel/buck,illicitonion/buck,darkforestzero/buck,dsyang/buck,clonetwin26/buck,SeleniumHQ/buck,shs96c/buck,zhan-xiong/buck,justinmuller/buck,zhan-xiong/buck,LegNeato/buck,LegNeato/buck,rmaz/buck,Addepar/buck,rmaz/buck,brettwooldridge/buck,dsyang/buck,brettwooldridge/buck,shybovycha/buck,justinmuller/buck,justinmuller/buck,justinmuller/buck,marcinkwiatkowski/buck,darkforestzero/buck,clonetwin26/buck,romanoid/buck,grumpyjames/buck,justinmuller/buck,vschs007/buck,facebook/buck,rmaz/buck,LegNeato/buck,marcinkwiatkowski/buck,facebook/buck,darkforestzero/buck,clonetwin26/buck,justinmuller/buck,grumpyjames/buck,Addepar/buck,ilya-klyuchnikov/buck,romanoid/buck,clonetwin26/buck,Addepar/buck,darkforestzero/buck,brettwooldridge/buck,romanoid/buck,vschs007/buck,SeleniumHQ/buck,daedric/buck,grumpyjames/buck,zhan-xiong/buck,SeleniumHQ/buck,SeleniumHQ/buck,shybovycha/buck,shybovycha/buck,grumpyjames/buck,kageiit/buck,robbertvanginkel/buck,shs96c/buck,Addepar/buck,ilya-klyuchnikov/buck,kageiit/buck,robbertvanginkel/buck,Addepar/buck,brettwooldridge/buck,daedric/buck,daedric/buck,marcinkwiatkowski/buck,facebook/buck,rmaz/buck,k21/buck,LegNeato/buck,Addepar/buck,kageiit/buck,kageiit/buck,shybovycha/buck,SeleniumHQ/buck,SeleniumHQ/buck,illicitonion/buck,vschs007/buck,dsyang/buck,JoelMarcey/buck,JoelMarcey/buck,robbertvanginkel/buck,davido/buck,rmaz/buck,illicitonion/buck,darkforestzero/buck,justinmuller/buck,k21/buck,k21/buck,dsyang/buck,rmaz/buck,sdwilsh/buck,JoelMarcey/buck,k21/buck,LegNeato/buck,davido/buck,illicitonion/buck,shs96c/buck,marcinkwiatkowski/buck,zhan-xiong/buck,robbertvanginkel/buck,romanoid/buck,zpao/buck,clonetwin26/buck,ilya-klyuchnikov/buck,illicitonion/buck,ilya-klyuchnikov/buck,romanoid/buck,facebook/buck,shybovycha/buck,shs96c/buck,JoelMarcey/buck,facebook/buck,SeleniumHQ/buck,dsyang/buck,daedric/buck,daedric/buck,clonetwin26/buck,nguyentruongtho/buck,vschs007/buck,shybovycha/buck,marcinkwiatkowski/buck,illicitonion/buck,brettwooldridge/buck,LegNeato/buck,brettwooldridge/buck,clonetwin26/buck,davido/buck,illicitonion/buck,marcinkwiatkowski/buck,zpao/buck,sdwilsh/buck,shs96c/buck,kageiit/buck,kageiit/buck,facebook/buck,marcinkwiatkowski/buck,marcinkwiatkowski/buck,brettwooldridge/buck,brettwooldridge/buck,clonetwin26/buck,dsyang/buck,robbertvanginkel/buck,marcinkwiatkowski/buck,ilya-klyuchnikov/buck,shybovycha/buck,zhan-xiong/buck,Addepar/buck,davido/buck,darkforestzero/buck,dsyang/buck,dsyang/buck,k21/buck,vschs007/buck,davido/buck,clonetwin26/buck,Addepar/buck,zhan-xiong/buck,ilya-klyuchnikov/buck,ilya-klyuchnikov/buck,robbertvanginkel/buck,daedric/buck,vschs007/buck,ilya-klyuchnikov/buck,SeleniumHQ/buck,grumpyjames/buck,brettwooldridge/buck,vschs007/buck,dsyang/buck,clonetwin26/buck,vschs007/buck,LegNeato/buck,LegNeato/buck,SeleniumHQ/buck,zpao/buck,davido/buck,LegNeato/buck,SeleniumHQ/buck,k21/buck,shs96c/buck,robbertvanginkel/buck,romanoid/buck,sdwilsh/buck,romanoid/buck,vschs007/buck,JoelMarcey/buck,robbertvanginkel/buck,darkforestzero/buck,Addepar/buck,darkforestzero/buck,grumpyjames/buck,brettwooldridge/buck,robbertvanginkel/buck,clonetwin26/buck,zhan-xiong/buck,LegNeato/buck,shs96c/buck,shybovycha/buck,dsyang/buck,brettwooldridge/buck,ilya-klyuchnikov/buck,JoelMarcey/buck,Addepar/buck,k21/buck,sdwilsh/buck,shs96c/buck,grumpyjames/buck,shybovycha/buck,zhan-xiong/buck,romanoid/buck,zhan-xiong/buck,zpao/buck,nguyentruongtho/buck,vschs007/buck,zhan-xiong/buck,justinmuller/buck,darkforestzero/buck,nguyentruongtho/buck,brettwooldridge/buck,rmaz/buck,dsyang/buck,sdwilsh/buck,darkforestzero/buck,clonetwin26/buck,illicitonion/buck,k21/buck,vschs007/buck,justinmuller/buck,dsyang/buck,sdwilsh/buck,nguyentruongtho/buck,sdwilsh/buck,justinmuller/buck,robbertvanginkel/buck,rmaz/buck,grumpyjames/buck,romanoid/buck,grumpyjames/buck,davido/buck,daedric/buck,nguyentruongtho/buck,illicitonion/buck,romanoid/buck,grumpyjames/buck,shs96c/buck,LegNeato/buck,JoelMarcey/buck,justinmuller/buck,ilya-klyuchnikov/buck,shybovycha/buck,rmaz/buck,marcinkwiatkowski/buck,JoelMarcey/buck,JoelMarcey/buck,marcinkwiatkowski/buck,k21/buck,SeleniumHQ/buck,sdwilsh/buck,daedric/buck,davido/buck,JoelMarcey/buck,shs96c/buck,JoelMarcey/buck,robbertvanginkel/buck,facebook/buck,darkforestzero/buck,shybovycha/buck,zhan-xiong/buck,sdwilsh/buck,JoelMarcey/buck,LegNeato/buck,rmaz/buck,justinmuller/buck,shs96c/buck,darkforestzero/buck,Addepar/buck,grumpyjames/buck,daedric/buck,zpao/buck,illicitonion/buck,k21/buck,daedric/buck,daedric/buck,zpao/buck,sdwilsh/buck,shybovycha/buck,illicitonion/buck,darkforestzero/buck,zhan-xiong/buck,zpao/buck,sdwilsh/buck,davido/buck,daedric/buck,romanoid/buck,Addepar/buck,rmaz/buck,rmaz/buck,davido/buck,SeleniumHQ/buck,k21/buck,vschs007/buck,sdwilsh/buck,nguyentruongtho/buck,ilya-klyuchnikov/buck,brettwooldridge/buck,JoelMarcey/buck,romanoid/buck,romanoid/buck,kageiit/buck,SeleniumHQ/buck,k21/buck,nguyentruongtho/buck,Addepar/buck,daedric/buck,marcinkwiatkowski/buck,shybovycha/buck,ilya-klyuchnikov/buck,LegNeato/buck,davido/buck,shs96c/buck,vschs007/buck,k21/buck,grumpyjames/buck,justinmuller/buck,illicitonion/buck,ilya-klyuchnikov/buck,illicitonion/buck,zhan-xiong/buck,dsyang/buck,shs96c/buck,robbertvanginkel/buck,sdwilsh/buck