Fix unsolicted bug #847

Job	Run time
documentation	4m 48s
linting (stable)	49s
features (--no-default-features)	1m 47s
linting (beta)	56s
features (--no-default-features --features serialization)	1m 49s
test (ubuntu-latest, stable)	1m 24s
features (--no-default-features --features serial)	1m 50s
test (ubuntu-latest, beta)	1m 24s
features (--no-default-features --features tls)	2m 16s
test (windows-latest, stable)	4m 33s
bindings-windows (x86_64-pc-windows-msvc, true)	8m 29s
test (windows-latest, beta)	3m 1s
bindings-windows (i686-pc-windows-msvc, false)	4m 36s
bindings-linux (x86_64-unknown-linux-gnu)	2m 30s
bindings-linux (i686-unknown-linux-gnu)	2m 46s
bindings-macos (x86_64-apple-darwin)	5m 41s
bindings-linux (x86_64-unknown-linux-musl)	2m 45s
guide	1m 9s
bindings-linux (arm-unknown-linux-gnueabihf)	2m 41s
bindings-linux (arm-unknown-linux-musleabihf)	2m 46s
conformance	10m 36s
bindings-linux (aarch64-unknown-linux-gnu)	2m 55s
bindings-linux (aarch64-unknown-linux-musl)	2m 43s
bindings-linux (armv7-unknown-linux-gnueabihf)	2m 49s
bindings-linux (arm-unknown-linux-gnueabi)	2m 40s
packaging	2m 16s
release	0s
	1h 21m 59s

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