~/bibisect-win32-5.1
$ git bisect good
0917c72408abc3b80cd731a02f26a9131cc0113b is the first bad commit
commit 0917c72408abc3b80cd731a02f26a9131cc0113b
Author: Norbert Thiebaud <nthiebaud@gmail.com>
Date:   Thu Sep 10 16:34:52 2015 -0700

    source sha:5adc8ee343e5c32d30095bc4005b7b022016b745

    source sha:5adc8ee343e5c32d30095bc4005b7b022016b745

:040000 040000 2a7e7a9a0d0acc2647f6dfb75b09dbcd8accd835 eb8c5f37a1e06071cf91b9940e331205c630f8c0 M      instdir

 ~/bibisect-win32-5.1
$ git bisect log
# bad: [05d11632892a322664fb52bac90b2598b7fb7544] source sha:5616d22b57a9a5e57d545e912e029162a230829b
# good: [c1efd324c6ad448ac9edb030dc9738b9e6899e4d] source sha:ab465b90f6c6da5595393a0ba73f33a1e71a2b65
git bisect start 'origin/master' 'oldest'
# good: [97526ab777da7e58ce283c05498262ecdd4d6f7f] source sha:4ea70f87f7a2b61eda6e5ab1f48debf6fcfadc1f
git bisect good 97526ab777da7e58ce283c05498262ecdd4d6f7f
# bad: [86fee7ded76d9c2756ccab6aef160a2d7fab0ab6] source sha:1b62841b1859ae3443e2bf1ebe99ec3d6afb6cc2
git bisect bad 86fee7ded76d9c2756ccab6aef160a2d7fab0ab6
# bad: [ecd02a00b3cb479dcecd6a2539e2f4140cd8158f] source sha:f45ac62a20b80033a7f5ccdef4a6c116b6fece24
git bisect bad ecd02a00b3cb479dcecd6a2539e2f4140cd8158f
# bad: [6629f1abc962685b1c83b088dff82517bb2f1691] source sha:5496f2a3ee8e76dda6d1c393308be1e9bbb90d6e
git bisect bad 6629f1abc962685b1c83b088dff82517bb2f1691
# bad: [a5f968795bf60a73039ae687b366800b7929f17c] source sha:6917cd98ca6b6fd2d495d0257c7fe50611982d34
git bisect bad a5f968795bf60a73039ae687b366800b7929f17c
# bad: [46a5506b97ad5599ec0c27abe6d39f46de3d7360] source sha:e126468e5dbc4ef85fc4b6146e0ba73e85281f70
git bisect bad 46a5506b97ad5599ec0c27abe6d39f46de3d7360
# good: [719630ad66ad18929cddcb08e1f3912ed0df64a5] source sha:7ac8939cc8e7599cca3de27c8f8dc9fd9f2e2185
git bisect good 719630ad66ad18929cddcb08e1f3912ed0df64a5
# good: [eadec951e5429b0fc0021abdac12349ca76e7dc7] source sha:779b547ca6271156a59965569fa44fbeb3f63ce5
git bisect good eadec951e5429b0fc0021abdac12349ca76e7dc7
# bad: [0917c72408abc3b80cd731a02f26a9131cc0113b] source sha:5adc8ee343e5c32d30095bc4005b7b022016b745
git bisect bad 0917c72408abc3b80cd731a02f26a9131cc0113b
# good: [36000d50eb1cc043ce1878b804b96d67190cabb2] source sha:b5df051cc5d734ef9fd77a5336d2bb8d1d4557c9
git bisect good 36000d50eb1cc043ce1878b804b96d67190cabb2
# good: [6c3becd3c8f417b67fbda905d3201cbe6802f812] source sha:94b16ec225b9e369654902a0698359baafc1f519
git bisect good 6c3becd3c8f417b67fbda905d3201cbe6802f812
# good: [ef1cb946ee6bc69244cc8214cfd9db680552244a] source sha:a052479f3c85bdedddfa38cb03b0858003c965c3
git bisect good ef1cb946ee6bc69244cc8214cfd9db680552244a
# good: [8d2ef58ecfdabac07e0090159eaa2812b823c2e6] source sha:4ff0032528d7aebb0de5cf045a39972a2769029f
git bisect good 8d2ef58ecfdabac07e0090159eaa2812b823c2e6
# first bad commit: [0917c72408abc3b80cd731a02f26a9131cc0113b] source sha:5adc8ee343e5c32d30095bc4005b7b022016b745