Tried to bump one timeout, yet this is still happening on riscv64

=== RUN   TestSnapManager
fatal error: sync: unlock of unlocked mutex

goroutine 5186 [running]:
runtime.throw(0x2aab7d35e0, 0x1e)
	/usr/lib/go-1.14/src/runtime/panic.go:1116 +0x80 fp=0x3fcc4c2e38 sp=0x3fcc4c2e10 pc=0x2aaaf06678
sync.throw(0x2aab7d35e0, 0x1e)
	/usr/lib/go-1.14/src/runtime/panic.go:1102 +0x34 fp=0x3fcc4c2e50 sp=0x3fcc4c2e38 pc=0x2aaaf065f4
sync.(*Mutex).unlockSlow(0x3fcc1d9680, 0xffffffff)
	/usr/lib/go-1.14/src/sync/mutex.go:196 +0x17c fp=0x3fcc4c2e70 sp=0x3fcc4c2e50 pc=0x2aaaf4e224
sync.(*Mutex).Unlock(0x3fcc1d9680)
	/usr/lib/go-1.14/src/sync/mutex.go:190 +0x74 fp=0x3fcc4c2e90 sp=0x3fcc4c2e70 pc=0x2aaaf4e0a4
github.com/snapcore/snapd/overlord/state.(*State).unlock(0x3fcc1d9680)
	/<<PKGBUILDDIR>>/_build/src/github.com/snapcore/snapd/overlord/state/state.go:162 +0x4c fp=0x3fcc4c2eb0 sp=0x3fcc4c2e90 pc=0x2aab4212f4
github.com/snapcore/snapd/overlord/state.(*State).Unlock(0x3fcc1d9680)
	/<<PKGBUILDDIR>>/_build/src/github.com/snapcore/snapd/overlord/state/state.go:239 +0x284 fp=0x3fcc4c2f78 sp=0x3fcc4c2eb0 pc=0x2aab421bac
runtime.call32(0x0, 0x2aabb56388, 0x3fcc09b178)
	/usr/lib/go-1.14/src/runtime/asm_riscv64.s:486 +0x5c fp=0x3fcc4c2fa0 sp=0x3fcc4c2f78 pc=0x2aaaf40efc
runtime.reflectcallSave(0x3fcc4c3098, 0x2aabb56388, 0x3fcc09b178, 0x8)
	/usr/lib/go-1.14/src/runtime/panic.go:881 +0x60 fp=0x3fcc4c2fd0 sp=0x3fcc4c2fa0 pc=0x2aaaf05ba0
runtime.runOpenDeferFrame(0x3fcc1f5500, 0x3fcc09b130, 0x3fcc4c30d0)
	/usr/lib/go-1.14/src/runtime/panic.go:855 +0x360 fp=0x3fcc4c3058 sp=0x3fcc4c2fd0 pc=0x2aaaf05a20
runtime.Goexit()
	/usr/lib/go-1.14/src/runtime/panic.go:617 +0x1ec fp=0x3fcc4c30d0 sp=0x3fcc4c3058 pc=0x2aaaf05054
github.com/snapcore/snapd/vendor/gopkg.in/check%2ev1.(*C).stopNow(...)
	/<<PKGBUILDDIR>>/_build/src/github.com/snapcore/snapd/vendor/gopkg.in/check.v1/check.go:106
github.com/snapcore/snapd/vendor/gopkg.in/check%2ev1.(*C).Assert(0x3fcc446c30, 0x2aaba50c40, 0x3fcc840070, 0x2aabb7d040, 0x2aac15e510, 0x0, 0x0, 0x0)
	/<<PKGBUILDDIR>>/_build/src/github.com/snapcore/snapd/vendor/gopkg.in/check.v1/helpers.go:174 +0x94 fp=0x3fcc4c3130 sp=0x3fcc4c30d0 pc=0x2aab517934
github.com/snapcore/snapd/overlord/snapstate_test.(*snapmgrTestSuite).settle(0x3fcc0c6000, 0x3fcc446c30)
	/<<PKGBUILDDIR>>/_build/src/github.com/snapcore/snapd/overlord/snapstate/snapstate_test.go:87 +0xb0 fp=0x3fcc4c3178 sp=0x3fcc4c3130 pc=0x2aab703850
github.com/snapcore/snapd/overlord/snapstate_test.(*snapmgrTestSuite).TestUpdateManyMultipleCredsNoUserRunThrough(0x3fcc0c6000, 0x3fcc446c30)
	/<<PKGBUILDDIR>>/_build/src/github.com/snapcore/snapd/overlord/snapstate/snapstate_test.go:3642 +0x854 fp=0x3fcc4c3bb0 sp=0x3fcc4c3178 pc=0x2aab731fec
runtime.call32(0x3fcc443d70, 0x3fcc87a4c0, 0x3fcc431a30)
	/usr/lib/go-1.14/src/runtime/asm_riscv64.s:486 +0x5c fp=0x3fcc4c3bd8 sp=0x3fcc4c3bb0 pc=0x2aaaf40efc
reflect.Value.call(0x2aabb53be0, 0x3fcc0c6000, 0x59613, 0x2aab7b8375, 0x4, 0x3fcc075f18, 0x1, 0x1, 0x2aaaf3e970, 0x2aac1e4ae0, ...)
	/usr/lib/go-1.14/src/reflect/value.go:460 +0x77c fp=0x3fcc4c3de8 sp=0x3fcc4c3bd8 pc=0x2aaafb3504
reflect.Value.Call(0x2aabb53be0, 0x3fcc0c6000, 0x59613, 0x3fcc062f18, 0x1, 0x1, 0x3fcc2ccc30, 0x3fcc062f50, 0x1)
	/usr/lib/go-1.14/src/reflect/value.go:321 +0xa8 fp=0x3fcc4c3e60 sp=0x3fcc4c3de8 pc=0x2aaafb2b30
github.com/snapcore/snapd/vendor/gopkg.in/check%2ev1.(*suiteRunner).forkTest.func1(0x3fcc446c30)
	/<<PKGBUILDDIR>>/_build/src/github.com/snapcore/snapd/vendor/gopkg.in/check.v1/check.go:781 +0x66c fp=0x3fcc4c3f78 sp=0x3fcc4c3e60 pc=0x2aab51c434
github.com/snapcore/snapd/vendor/gopkg.in/check%2ev1.(*suiteRunner).forkCall.func1(0x3fcc1cea80, 0x3fcc446c30, 0x3fcc15b640)
	/<<PKGBUILDDIR>>/_build/src/github.com/snapcore/snapd/vendor/gopkg.in/check.v1/check.go:675 +0x98 fp=0x3fcc4c3fc0 sp=0x3fcc4c3f78 pc=0x2aab51bba8
runtime.goexit()
	/usr/lib/go-1.14/src/runtime/asm_riscv64.s:534 +0x4 fp=0x3fcc4c3fc0 sp=0x3fcc4c3fc0 pc=0x2aaaf428bc
created by github.com/snapcore/snapd/vendor/gopkg.in/check%2ev1.(*suiteRunner).forkCall
	/<<PKGBUILDDIR>>/_build/src/github.com/snapcore/snapd/vendor/gopkg.in/check.v1/check.go:672 +0x20c

goroutine 1 [chan receive, 3 minutes]:
testing.(*T).Run(0x3fcc2e26c0, 0x2aab7c1c3c, 0xf, 0x2aabb56360, 0x2aaaffefac)
	/usr/lib/go-1.14/src/testing/testing.go:1043 +0x374
testing.runTests.func1(0x3fcc2e25a0)
	/usr/lib/go-1.14/src/testing/testing.go:1284 +0x7c
testing.tRunner(0x3fcc2e25a0, 0x3fcc69fe28)
	/usr/lib/go-1.14/src/testing/testing.go:991 +0x108
testing.runTests(0x3fcc1ca900, 0x2aac1612c0, 0x1, 0x1, 0x0)
	/usr/lib/go-1.14/src/testing/testing.go:1282 +0x2bc
testing.(*M).Run(0x3fcc0c8100, 0x0)
	/usr/lib/go-1.14/src/testing/testing.go:1199 +0x170
main.main()
	_testmain.go:46 +0x16c

goroutine 39 [chan receive]:
github.com/snapcore/snapd/vendor/gopkg.in/check%2ev1.(*suiteRunner).runTest(...)
	/<<PKGBUILDDIR>>/_build/src/github.com/snapcore/snapd/vendor/gopkg.in/check.v1/check.go:819
github.com/snapcore/snapd/vendor/gopkg.in/check%2ev1.(*suiteRunner).run(0x3fcc1cea80, 0x3fcc0c6000)
	/<<PKGBUILDDIR>>/_build/src/github.com/snapcore/snapd/vendor/gopkg.in/check.v1/check.go:624 +0x160
github.com/snapcore/snapd/vendor/gopkg.in/check%2ev1.Run(0x2aabb53be0, 0x3fcc0c6000, 0x3fcc015f30, 0x3fcc1d86c0)
	/<<PKGBUILDDIR>>/_build/src/github.com/snapcore/snapd/vendor/gopkg.in/check.v1/run.go:92 +0x4c
github.com/snapcore/snapd/vendor/gopkg.in/check%2ev1.RunAll(0x3fcc502f30, 0x0)
	/<<PKGBUILDDIR>>/_build/src/github.com/snapcore/snapd/vendor/gopkg.in/check.v1/run.go:84 +0x98
github.com/snapcore/snapd/vendor/gopkg.in/check%2ev1.TestingT(0x3fcc2e26c0)
	/<<PKGBUILDDIR>>/_build/src/github.com/snapcore/snapd/vendor/gopkg.in/check.v1/run.go:72 +0x35c
github.com/snapcore/snapd/overlord/snapstate_test.TestSnapManager(0x3fcc2e26c0)
	/<<PKGBUILDDIR>>/_build/src/github.com/snapcore/snapd/overlord/snapstate/snapstate_test.go:66 +0x2c
testing.tRunner(0x3fcc2e26c0, 0x2aabb56360)
	/usr/lib/go-1.14/src/testing/testing.go:991 +0x108
created by testing.(*T).Run
	/usr/lib/go-1.14/src/testing/testing.go:1042 +0x350

goroutine 745 [select]:
github.com/snapcore/snapd/vendor/gopkg.in/check%2ev1.(*resultTracker)._loopRoutine(0x3fcc1d8cf0)
	/<<PKGBUILDDIR>>/_build/src/github.com/snapcore/snapd/vendor/gopkg.in/check.v1/check.go:470 +0x9c
created by github.com/snapcore/snapd/vendor/gopkg.in/check%2ev1.(*resultTracker).start
	/<<PKGBUILDDIR>>/_build/src/github.com/snapcore/snapd/vendor/gopkg.in/check.v1/check.go:450 +0x40
FAIL	github.com/snapcore/snapd/overlord/snapstate	204.942s