root@fex:/tmp/rustic-nightly-x86_64-unknown-linux-gnu/docs# file *
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root@fex:/tmp/rustic-nightly-x86_64-unknown-linux-gnu/docs# head rustic-user-docs.pdf
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https://github.com/rustic-rs/nightly/raw/main/rustic/rustic-nightly-x86_64-unknown-linux-gnu.tar.gz