$ git bisect good
ef8163604f7946ba35b5d133cf6e7a41c750a112 is the first bad commit
commit ef8163604f7946ba35b5d133cf6e7a41c750a112
Author: Norbert Thiebaud <nthiebaud@gmail.com>
Date:   Thu Nov 12 21:07:25 2015 -0800

    source sha:f02ae7a1bba0a061b8d6d0fef1155bdd9feb16e3

    source sha:f02ae7a1bba0a061b8d6d0fef1155bdd9feb16e3
    source sha:d01a81338abe84491684b9f3925ba98c43163fe7
    source sha:e08fbe4c592b25fb88828157ff054431ac8e2d8b
    source sha:2d0341a23f95e322990006d78d3f514a9448ed84
    source sha:e660a0515889ce42e95c57af8c3815a1afc2f1dc
    source sha:2d30f347ccdc4539a695f04d91a3706d02a857e1
    source sha:e9fcefe4640dfa0895dca703a37f27ea5b2e893c
    source sha:14e409188b2068e04c63201803039b250113ae37
    source sha:ce6eed613cb2bd79a66cf9c10e3370fcb4949c6d
    source sha:9f90d987901f9f69e78370705a7f000f5d7d4902
    source sha:2dbe457fbcd99ea09e5a97b39e216e575c260cbe
    source sha:a201f0cc675ea5b5b1ef71d6cef7ea7ef4e74923
    source sha:8557a8a74dc692ef7ec83d95413ddc3186aa0695
    source sha:d7627da5c9b0b351e8150b08febf64273ba0231e
    source sha:c4ef30ea916752ba5a057b49960a60a55f70c84c
    source sha:bb34de0189a7c2ac81c08f3a283a71c2e67093d3
    source sha:11fc639c0897a192f1da0c69d1f7ab683ff1208e
    source sha:52e08f200e5ed525cb1ff92a13ab85d36cd7459f
    source sha:fd8c98861c94dfa572253b53809c49bbd975dfc0
    source sha:d6c82fe72787702c9c90ff890b86519604a4273c
    source sha:e7ab3554f53df02088451361a154e4574494a8f7
    source sha:8bae6345bff0508f5f01e0061d7b576f36e6961d
    source sha:54c679af63b87dd83b6da07201b68728bded4ba9
    source sha:0c7913de2f0b91de623838dfd4013c5e92bad6d8
    source sha:4bdf05b28d6584a1986ac7e5855d0260ff62930d
    source sha:32686b0d0a15a653f831d0645e5b7c1145860570
    source sha:c65e00d908a2dcf47d3ff925d09e336d9b0939f7
    source sha:899453aa8407fca8a93d51f12ad4e335d1beeb62
    source sha:6128c10f550924c2b75f18b6c6220cc1770adba4
    source sha:2b4d7be9484d360d8361dd71d767afbcc67fdcb2
    source sha:a133053f94f7c5b05f4354bb4977c2250b470a8a
    source sha:737555eb2ff5f4f90b9794784e1ac8f0451b9b97
    source sha:5c142dd31de4a6d1c6ce9885ad06d84aca492152
    source sha:266abd09fd2d449351e356bc48f65c725b121247
    source sha:b92174e4c723bacfcfc245a483365cc7fb5d72c1
    source sha:c504477e7c3c7109fc4439988d8f3eb11a267c74
    source sha:44daaebf835bb60fb7e442e928cd30191f15af52
    source sha:a7816853bad55ada597092c16ba9a0a761e067d0
    source sha:14c2b509928b7c7a437464c10bd0f57ff307ad54
    source sha:fa91dd31f39a24329d288d4e1cda28db3a16af0d
    source sha:c21ddcdb30b8dd7be56176e00bc2d4780cb342e1
    source sha:a31b4f4c6eaa7a2e5e5986a4dee5acbd94ada8d1
    source sha:3503873c7b54c013e7cfe8f73ce8485862348592
    source sha:1bea36ddadae18a66d2e6043681b5b6fa37e4da1
    source sha:12bf19b8e6cff6309f70675ebaaeb7b356b1967b
    source sha:2ff2fafff8fe455a2493d04e7da709588a691ddd
    source sha:0521461eee932eefbd69fcd39407f181bc2213dd
    source sha:8978ce53e16de9a597015b0704f813dffa7da920
    source sha:44d3577f4b5ec181219268826d2ec504e61541f3

:040000 040000 1ce755f5622de2e074a52f040a4cbce581150fae 09ea88eeec0c2980170abeadabf9920e658174ab 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
# good: [86fee7ded76d9c2756ccab6aef160a2d7fab0ab6] source sha:1b62841b1859ae3443e2bf1ebe99ec3d6afb6cc2
git bisect good 86fee7ded76d9c2756ccab6aef160a2d7fab0ab6
# good: [11864a7db429a57aeea021e0b3f1fb1412282d32] source sha:e5b721a14c1c8e5261a70588b30353cbb5bd55c6
git bisect good 11864a7db429a57aeea021e0b3f1fb1412282d32
# bad: [7d52a87c0aa24498584ec522705cfae3a3a5a038] source sha:479df22d0b4b0e0393fcf621e7380b38415bcef8
git bisect bad 7d52a87c0aa24498584ec522705cfae3a3a5a038
# bad: [24f34e7d5452bbbda3ab10f38dffd8330bd3356a] source sha:5140fe150b2962f2973bd07e770df46fee7ab25d
git bisect bad 24f34e7d5452bbbda3ab10f38dffd8330bd3356a
# bad: [5c46c3cd0a5a5a62b016e818b4edda69bfedfe68] source sha:318c3a48c66dd4ceba801ef410f89b8bf900d5c7
git bisect bad 5c46c3cd0a5a5a62b016e818b4edda69bfedfe68
# good: [2fd77af15ba87dce7192e60538ba6e428ed0cac9] source sha:97ebf71c8bbe1755e02fe4d486d04353cf2575da
git bisect good 2fd77af15ba87dce7192e60538ba6e428ed0cac9
# good: [c9a56374f3023af33f75551465248bcce35cca10] source sha:b961940d3a7ec2ebee0dbbf1875d1bd69d2f38c8
git bisect good c9a56374f3023af33f75551465248bcce35cca10
# good: [68718589ae7d99aa0c9dcd95f3c91b4e1e5c381c] source sha:11129d89b152db54c86bb2bda58c24b8abb6c5a8
git bisect good 68718589ae7d99aa0c9dcd95f3c91b4e1e5c381c
# good: [198960516f0962e448bd97173031096bd9737d57] source sha:2a2b9920c1ccd9cfb2ec474ceffed7c5d78ecb00
git bisect good 198960516f0962e448bd97173031096bd9737d57
# bad: [ef8163604f7946ba35b5d133cf6e7a41c750a112] source sha:f02ae7a1bba0a061b8d6d0fef1155bdd9feb16e3
git bisect bad ef8163604f7946ba35b5d133cf6e7a41c750a112
# good: [7af83ef83032142de320e477145ba876d76a53ba] source sha:aef8a59d51954f1858296ef23f70c8bd65c77c1c
git bisect good 7af83ef83032142de320e477145ba876d76a53ba
# good: [4e54c8d1002356d3b8afd7b492ce7cadcd2dbc67] source sha:5d892a3378dfd5c452ba106b002c7cef9a77a861
git bisect good 4e54c8d1002356d3b8afd7b492ce7cadcd2dbc67
# first bad commit: [ef8163604f7946ba35b5d133cf6e7a41c750a112] source sha:f02ae7a1bba0a061b8d6d0fef1155bdd9feb16e3