WJ@WJ-PC1 ~/bibisect-win32-6.2
$ git bisect good
ab72f8e407e6c8eeba70421d354ea811201c4a1f is the first bad commit
commit ab72f8e407e6c8eeba70421d354ea811201c4a1f
Author: Norbert Thiebaud <nthiebaud@gmail.com>
Date:   Mon Jul 9 13:58:23 2018 -0700

    source sha:fad862e290d727fc9fefe206f6e4b807482c4175

    source sha:fad862e290d727fc9fefe206f6e4b807482c4175

:040000 040000 772fb43532ecb4a96d1ad196b940c55900d58437 0e5d0e4ba4471e3dcc079208056fa6b3d2560f70 M      instdir

WJ@WJ-PC1 ~/bibisect-win32-6.2
$ git bisect log
# bad: [aaef1de14d33db6963a1eb01c8b9ce41c0aa05d1] source sha:c290f692dd28094d41dff686f3faa1c4e14b556e
# good: [b0a56ec98b1368cb5e3e531e0b3f69565af91609] source sha:3a801799536e6870f2fb111b1cc00b9575a35a39
git bisect start 'origin/master' 'oldest'
# good: [cf35770c2dce8045a2eeb67eac550e3e93dbc9bb] source sha:cc46e7b9c75ddbcaaefde5f396ba76b0b866fa58
git bisect good cf35770c2dce8045a2eeb67eac550e3e93dbc9bb
# good: [32f1128861a536dc1cbb7802c841c72d1cd17564] source sha:64acf709a616c45d20c9cb5b1bcce0da34593661
git bisect good 32f1128861a536dc1cbb7802c841c72d1cd17564
# good: [37acc1ac6b299da32ff55bf9399fe352a3d4a30d] source sha:5dadfe9f904be1767d16bab8ecf3886231e14f01
git bisect good 37acc1ac6b299da32ff55bf9399fe352a3d4a30d
# good: [19c4bc92dbbb8791559198915366f2c748322d02] source sha:c3a732a11c320b98e31dad79f421d4d73f33a15b
git bisect good 19c4bc92dbbb8791559198915366f2c748322d02
# good: [2522459a39163a8bc622dd2f5e862dac8e9c8df9] source sha:8a2414e4691ceb61559233570dd9df1221d164ea
git bisect good 2522459a39163a8bc622dd2f5e862dac8e9c8df9
# good: [2522459a39163a8bc622dd2f5e862dac8e9c8df9] source sha:8a2414e4691ceb61559233570dd9df1221d164ea
git bisect good 2522459a39163a8bc622dd2f5e862dac8e9c8df9
# good: [2522459a39163a8bc622dd2f5e862dac8e9c8df9] source sha:8a2414e4691ceb61559233570dd9df1221d164ea
git bisect good 2522459a39163a8bc622dd2f5e862dac8e9c8df9
# bad: [c6d423dda86cc7526cb9d435ab2f52c1a03d73d4] source sha:139750d7c295b84f4c42bf9409ccbdfb0c46b9f6
git bisect bad c6d423dda86cc7526cb9d435ab2f52c1a03d73d4
# bad: [c6d423dda86cc7526cb9d435ab2f52c1a03d73d4] source sha:139750d7c295b84f4c42bf9409ccbdfb0c46b9f6
git bisect bad c6d423dda86cc7526cb9d435ab2f52c1a03d73d4
# good: [4e419e8b6a13945ba8a1ae9cc9172877e8370780] source sha:9a7a419baf9a6aa9fc70d9e2a00dec3fbdeee565
git bisect good 4e419e8b6a13945ba8a1ae9cc9172877e8370780
# good: [4e419e8b6a13945ba8a1ae9cc9172877e8370780] source sha:9a7a419baf9a6aa9fc70d9e2a00dec3fbdeee565
git bisect good 4e419e8b6a13945ba8a1ae9cc9172877e8370780
# bad: [ab72f8e407e6c8eeba70421d354ea811201c4a1f] source sha:fad862e290d727fc9fefe206f6e4b807482c4175
git bisect bad ab72f8e407e6c8eeba70421d354ea811201c4a1f
# bad: [ab72f8e407e6c8eeba70421d354ea811201c4a1f] source sha:fad862e290d727fc9fefe206f6e4b807482c4175
git bisect bad ab72f8e407e6c8eeba70421d354ea811201c4a1f
# good: [951822981a253e45fcccc300e8b1810c85e853d7] source sha:08db80ebb4e831d6501ea30de561b175819cc68c
git bisect good 951822981a253e45fcccc300e8b1810c85e853d7
# good: [951822981a253e45fcccc300e8b1810c85e853d7] source sha:08db80ebb4e831d6501ea30de561b175819cc68c
git bisect good 951822981a253e45fcccc300e8b1810c85e853d7
# good: [cf7fb302ed3afc8dca2560ecb69b4b1a0aef9b10] source sha:5f3914ad67584fc4731c394c969baaa017ba75b7
git bisect good cf7fb302ed3afc8dca2560ecb69b4b1a0aef9b10
# good: [725037f4af09c1f4d6b42948c520e4a7fae06d5e] source sha:9d754a59154c40235c240bb0e7f47a2006fa85bd
git bisect good 725037f4af09c1f4d6b42948c520e4a7fae06d5e
# first bad commit: [ab72f8e407e6c8eeba70421d354ea811201c4a1f] source sha:fad862e290d727fc9fefe206f6e4b807482c4175