Enable more rust lints

Author: Turbo87

Cargo.toml

@@ -12,7 +12,12 @@ default-run = "server"
 members = ["crates_io_*"]
 
 [workspace.lints.rust]
+future_incompatible = "warn"
+nonstandard_style = "warn"
 rust_2018_idioms = "warn"
+rust_2018_compatibility = "warn"
+rust_2021_compatibility = "warn"
+unused = "warn"
 
 [workspace.lints.clippy]
 all = "warn"