timeout measures warmup (eliminating many of the reasons to use timeout)

[willow-ahrens]

The issue is with these lines here:

BenchmarkTools.jl/src/execution.jl

Lines 113 to 117 in 0941fd1

	start_time = Base.time()
	trial = Trial(params)
	if warmup
	b.samplefunc(b.quote_vals, Parameters(params; evals=1)) #warmup sample
	end

The problem is that we time out if the warmup takes a long time, because we start the clock before the warmup

[willow-ahrens]

Closed in #367