cmd/bench: don't overwrite err when cleaning up tmp dirs for sweet
Currently the sweet function doesn't properly propagate errors because
the error gets overwritten on a successful tmp dir clear. Fix this by
only overwriting the error if nothing else went wrong.
Change-Id: I4bda4a3d1d57fc307647bd5d2af8e4afcaec1de2
Reviewed-on: https://go-review.googlesource.com/c/benchmarks/+/384339
Reviewed-by: Michael Pratt <mpratt@google.com>
Trust: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
1 file changed
