Comment 17 for bug 1212455

I was in the process of building the mainline kernel for the first commit identified by git bisect. (I skipped the exercise of building the two mainline kernels that mapped from the good and bad Ubuntu kernels.) I ran this command at step 8:
        make -j `getconf _NPROCESSORS_ONLN` deb-pkg LOCALVERSION=-MainlineBisect1
(substituting "MainlineBisect1" for "custom").

The machine worked on this for perhaps 8 hours (I stopped monitoring at some point and let it run overnight). I found these warnings/errors at the end of the results:

dpkg-gencontrol: warning: File::FcntlLock not available; using flock which is not NFS-safe
dpkg-deb: building package `linux-firmware-image' in `../linux-firmware-image_3.7.0-MainlineBisect1-1_i386.deb'.
dpkg-gencontrol: error: illegal package name 'linux-headers-3.7.0-MainlineBisect1': character 'M' not allowed
make[1]: *** [deb-pkg] Error 255
make: *** [deb-pkg] Error 2

It did produce linux-firmware-image_3.7.0-MainlineBisect1-1_i386.deb (a 1.1MB file), but nothing else.

A couple questions then:

1) Was "MainlineBisect1" not allowed as a string substitute for "custom"? If not, what is allowed?

2) Do I have to back up to perhaps "make clean" and do the 8-hour thing over again, or can I salvage whatever it was doing for 8 hours?