win-32 isn't in CQ and gatekeeper is broken, so I didn't notice this for long time. Anyhow, https://chromium-review.googlesource.com/c/infra/infra/+/1179429 is the CL after which builder turned red. Here is its first build https://ci.chromium.org/p/infra/builders/luci.infra.ci/infra-continuous-win7-32/4699


PACKAGE: infra/appengine/rotang/pkg/algo
--------------------------------------------------------------------------------
--- FAIL: TestGenerate (0.00s)
	fair_test.go:336: Random when not providing any previous shifts: Generate(_) differs -want +got:  [
		  {
		   Name: "Test Shift",
		   OnCall: [
		    {
		-    Email: "I@I.com",
		+    Email: "B@B.com",
		     ShiftName: "Test Shift",
		    },
		   ],
		   StartTime: 2006-01-02 00:00:00 +0000 UTC,
		   EndTime: 2006-01-07 00:00:00 +0000 UTC,
		   Comment: "",
		  },
		  {
		   Name: "Test Shift",
		   OnCall: [
		    {
		-    Email: "C@C.com",
		+    Email: "G@G.com",
		     ShiftName: "Test Shift",
		    },
		   ],
		   StartTime: 2006-01-09 00:00:00 +0000 UTC,
		   EndTime: 2006-01-14 00:00:00 +0000 UTC,
		   Comment: "",
		  },
		  {
		   Name: "Test Shift",
		   OnCall: [
		    {
		-    Email: "F@F.com",
		+    Email: "A@A.com",
		     ShiftName: "Test Shift",
		    },
		   ],
		   StartTime: 2006-01-16 00:00:00 +0000 UTC,
		   EndTime: 2006-01-21 00:00:00 +0000 UTC,
		   Comment: "",
		  },
		  {
		   Name: "Test Shift",
		   OnCall: [
		    {
		-    Email: "A@A.com",
		+    Email: "D@D.com",
		     ShiftName: "Test Shift",
		    },
		   ],
		   StartTime: 2006-01-23 00:00:00 +0000 UTC,
		   EndTime: 2006-01-28 00:00:00 +0000 UTC,
		   Comment: "",
		  },
		 ]
FAIL
coverage: 88.7% of statements
FAIL	infra/appengine/rotang/pkg/algo	0.028s