A cargo subcommand for displaying when different versions of a same dependency are pulled in.
Once installed, running cargo duplicates in a project directory looks like the following:
```text Package Versions ------- -------- hex 0.4.3 0.3.2 rand_core 0.6.3 0.5.1
hex 0.4.3: - Because of cargo-duplicates 0.4.0 => cargo 0.57.0 => hex 0.4.3 - Because of cargo-duplicates 0.4.0 => cargo 0.57.0 => cargo-util 0.1.1 => hex 0.4.3 hex 0.3.2: - Because of cargo-duplicates 0.4.0 => cargo 0.57.0 => cargo-util 0.1.1 => crypto-hash 0.3.4 => hex 0.3.2
randcore 0.6.3: - Because of cargo-duplicates 0.4.0 => cargo 0.57.0 => tempfile 3.2.0 => rand 0.8.4 => randcore 0.6.3 - Because of cargo-duplicates 0.4.0 => cargo 0.57.0 => cargo-util 0.1.1 => tempfile 3.2.0 => rand 0.8.4 => randcore 0.6.3 - Because of cargo-duplicates 0.4.0 => cargo 0.57.0 => tempfile 3.2.0 => rand 0.8.4 => randchacha 0.3.1 => randcore 0.6.3 - Because of cargo-duplicates 0.4.0 => cargo 0.57.0 => cargo-util 0.1.1 => tempfile 3.2.0 => rand 0.8.4 => randchacha 0.3.1 => randcore 0.6.3 - Because of cargo-duplicates 0.4.0 => cargo 0.57.0 => tempfile 3.2.0 => rand 0.8.4 => randhc 0.3.1 => randcore 0.6.3 - Because of cargo-duplicates 0.4.0 => cargo 0.57.0 => cargo-util 0.1.1 => tempfile 3.2.0 => rand 0.8.4 => randhc 0.3.1 => randcore 0.6.3 randcore 0.5.1: - Because of cargo-duplicates 0.4.0 => cargo 0.57.0 => im-rc 15.0.0 => randcore 0.5.1 - Because of cargo-duplicates 0.4.0 => cargo 0.57.0 => im-rc 15.0.0 => randxoshiro 0.4.0 => rand_core 0.5.1 ```