cargo install CLI refuses URL

[dand-oss]

cargo install twars-url2md
Updating crates.io index
Ignored package twars-url2md v1.4.2 is already installed, use --force to override

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twars-url2md -v http://www.yahoo.com
error: unexpected argument 'http://www.yahoo.com' found

Usage: twars-url2md [OPTIONS]

For more information, try '--help'.