Fix disk is empty #2558

Job	Run time
softhsm2-test (1.65.0, hsm,hsm-tests-pkcs11)	12m 19s
build (ubuntu-latest, 1.65.0, --no-default-features)	14m 14s
softhsm2-test (stable, hsm,hsm-tests-pkcs11)	9m 7s
pykmip-test (1.65.0, hsm)	13m 28s
build (ubuntu-latest, 1.65.0)	18m 8s
pykmip-test (1.65.0, hsm,hsm-tests-kmip)	12m 52s
softhsm2-test (beta, hsm,hsm-tests-pkcs11)	8m 38s
build (ubuntu-latest, 1.65.0, --features all)	20m 5s
pykmip-test (stable, hsm)	10m 21s
build (ubuntu-latest, stable, --no-default-features)	10m 24s
pykmip-test (stable, hsm,hsm-tests-kmip)	8m 31s
build (ubuntu-latest, stable)	15m 13s
pykmip-test (beta, hsm)	8m 56s
build (ubuntu-latest, stable, --features all)	12m 8s
build (ubuntu-latest, beta, --no-default-features)	11m 52s
pykmip-test (beta, hsm,hsm-tests-kmip)	9m 16s
build (ubuntu-latest, beta)	12m 12s
build (ubuntu-latest, beta, --features all)	10m 22s
	3h 38m 6s

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