$ git bisect log
# bad: [e81dce33f9408b434377713b586fbfde2925762b] source sha:2891e91a513520d68ea                                                                                                                                                                                               2b8c59c14335861a15253
# good: [832184dd45effc3d2a68e9010c4b8f1d0a70623a] source sha:9bc848cf0d301aa57e                                                                                                                                                                                               abcffa101a1cf87bad6470
git bisect start 'origin/master' 'oldest'
# good: [8769a12f2f4cc34c9780be6940faa0008491e8bf] source sha:f15d67442972c5f69c                                                                                                                                                                                               71925a6bfa5aa1a39d54eb
git bisect good 8769a12f2f4cc34c9780be6940faa0008491e8bf
# good: [8769a12f2f4cc34c9780be6940faa0008491e8bf] source sha:f15d67442972c5f69c                                                                                                                                                                                               71925a6bfa5aa1a39d54eb
git bisect good 8769a12f2f4cc34c9780be6940faa0008491e8bf
# bad: [98515bf62171d4eb9e62d70a69c176a7928b240a] source sha:4102c4df3ae0446c9cd                                                                                                                                                                                               d55d64459d975ed18103f
git bisect bad 98515bf62171d4eb9e62d70a69c176a7928b240a
# bad: [98515bf62171d4eb9e62d70a69c176a7928b240a] source sha:4102c4df3ae0446c9cd                                                                                                                                                                                               d55d64459d975ed18103f
git bisect bad 98515bf62171d4eb9e62d70a69c176a7928b240a
# good: [a4b2cd84ba5ae8153ca46c0b1d347f87191793b7] source sha:b7d10989d6d7bdbd15                                                                                                                                                                                               6288a3773e2da94c97a77e
git bisect good a4b2cd84ba5ae8153ca46c0b1d347f87191793b7
# good: [95b8184aedcccaf559ba57709cd5f59e87717863] source sha:b3822741430bf8ebea                                                                                                                                                                                               23b7457d19db00756ed2db
git bisect good 95b8184aedcccaf559ba57709cd5f59e87717863
# good: [519e1277ab887990f7db1761d647ee08f972b27e] source sha:d7c9bb6b51f44b01b2                                                                                                                                                                                               3134fb22c0902d85f31329
git bisect good 519e1277ab887990f7db1761d647ee08f972b27e
# good: [a1a4e9d2bfa2fd99170b729841aca3beb2ce4bdc] source sha:9977fbeed1461a8f5c                                                                                                                                                                                               fa8029c02e914c099f3230
git bisect good a1a4e9d2bfa2fd99170b729841aca3beb2ce4bdc
# good: [f583a378e52f5201496903b8cd52f838512eadc4] source sha:95dbfd517240666e5b                                                                                                                                                                                               9a9fd7ac1d47d799235a62
git bisect good f583a378e52f5201496903b8cd52f838512eadc4
# good: [ec316fd9fda28d447f0c2ed1e9e763802585ca6e] source sha:917fb3c1b09eb14555                                                                                                                                                                                               1eae357a1220311261532a
git bisect good ec316fd9fda28d447f0c2ed1e9e763802585ca6e
# good: [8e7f1e788f29b4eb8b5150c64ffbd6615614ef17] source sha:944e42a8dcc119189b                                                                                                                                                                                               c23a28affefee2d28d2b8c
git bisect good 8e7f1e788f29b4eb8b5150c64ffbd6615614ef17
# bad: [e4b4219de994c1efa7b111510f1d76e643541482] source sha:5769851b4cbf1985004                                                                                                                                                                                               ab35bafd5ee69773b8db1
git bisect bad e4b4219de994c1efa7b111510f1d76e643541482
# bad: [80120b123f22e769bae4850333644f46d05f0088] source sha:4ec7dee3e33cf70abdc                                                                                                                                                                                               e9d9de936a9694344d402
git bisect bad 80120b123f22e769bae4850333644f46d05f0088
# good: [7ea049ac280a993895a0434f9c790305df40c965] source sha:bf88d6d02d01b85e75                                                                                                                                                                                               293579bab35155e513caea
git bisect good 7ea049ac280a993895a0434f9c790305df40c965
# first bad commit: [80120b123f22e769bae4850333644f46d05f0088] source sha:4ec7de                                                                                                                                                                                               e3e33cf70abdce9d9de936a9694344d402