Odd failure on linux with coverage build

[springmeyer]

The linux+coverage builds are failing on travis, after #271, like: https://travis-ci.org/Project-OSRM/node-osrm/jobs/180973865

Error copying file "/home/travis/build/Project-OSRM/node-osrm/mason_packages/linux-x86_64/tbb/43_20150316/lib/libtbbmalloc.so" to "/home/travis/build/Project-OSRM/node-osrm/lib/binding/".
Error copying file "/home/travis/build/Project-OSRM/node-osrm/mason_packages/linux-x86_64/tbb/43_20150316/lib/libtbbmalloc.so.2" to "/home/travis/build/Project-OSRM/node-osrm/lib/binding/".
make[4]: *** [../lib/binding/libtbb.so] Error 1
make[4]: *** Waiting for unfinished jobs....
make[4]: *** [../lib/binding/libtbb.so.2] Error 1
make[4]: *** [../lib/binding/libtbbmalloc.so] Error 1
make[4]: *** [../lib/binding/libtbbmalloc.so.2] Error 1
make[4]: Leaving directory `/home/travis/build/Project-OSRM/node-osrm/build'
make[3]: *** [CMakeFiles/copy_osrm_binaries.dir/all] Error 2
make[3]: Leaving directory `/home/travis/build/Project-OSRM/node-osrm/build'
make[2]: *** [CMakeFiles/copy_osrm_binaries.dir/rule] Error 2
make[2]: Leaving directory `/home/travis/build/Project-OSRM/node-osrm/build'
make[1]: *** [copy_osrm_binaries] Error 2
make[1]: Leaving directory `/home/travis/build/Project-OSRM/node-osrm/build'
make: *** [coverage] Error 2
make failed with 2

/cc @TheMarex

Incidentally I think we to install only need libtbb.so and not libtbbmalloc.so?

[springmeyer]

obsolete per #307