Additional Appveyor warnings #687

Job	Run time
default-win	1m 55s
default-linux	10s
default-linux-with-examples	12s
no-pico	14s
min-req	6m 27s
preset-support-but-not-enough	9m 11s
custom-install-linux	8s
root-hint-install-linux	7s
with-hunter	3m 11s
with-wolfssl	48s
with-libressl	1m 26s
no-base64	9s
custom-install-win	3m 11s
	27m 9s

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