v0.8.4: config load failures are no longer silent (diagnoses the rese… #25

Job	Run time
build (x86_64-unknown-linux-musl, ubuntu-latest, mhrv-rs-linux-musl-amd64)	2m 7s
build (aarch64-unknown-linux-gnu, ubuntu-22.04, mhrv-rs-linux-arm64)	1m 56s
build (x86_64-unknown-linux-gnu, ubuntu-22.04, mhrv-rs-linux-amd64)	4m 12s
build (x86_64-apple-darwin, macos-latest, mhrv-rs-macos-amd64)	4m 12s
build (x86_64-pc-windows-gnu, windows-latest, mhrv-rs-windows-amd64)	6m 37s
build (aarch64-apple-darwin, macos-latest, mhrv-rs-macos-arm64)	2m 46s
build (aarch64-unknown-linux-musl, ubuntu-latest, mhrv-rs-linux-musl-arm64)	2m 10s
release	17s
	24m 17s

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