multiple versions of nix in the dependency tree

[dmah42]

our current Cargo.lock has 3 versions of nix listed, coming in from various dependencies

• libcontainer (auraed) pulls in 0.28
• deno (auraescript) is pulling in 0.26.2
• nix 0.24 is in the cargo.lock but i can't see where it's used

is this an issue?