Lint Groups

rustc has the concept of a "lint group", where you can toggle several warnings through one name.

For example, the nonstandard-style lint sets non-camel-case-types, non-snake-case, and non-upper-case-globals all at once. So these are equivalent:

$ rustc -D nonstandard-style
$ rustc -D non-camel-case-types -D non-snake-case -D non-upper-case-globals

Here's a list of each lint group, and the lints that they are made up of:

GroupDescriptionLints
warningsAll lints that are set to issue warningsSee warn-by-default for the default set of warnings
future-incompatibleLints that detect code that has future-compatibility problemsabsolute-paths-not-starting-with-crate, ambiguous-associated-items, anonymous-parameters, array-into-iter, cenum-impl-drop-cast, coherence-leak-check, conflicting-repr-hints, const-evaluatable-unchecked, ill-formed-attribute-input, illegal-floating-point-literal-pattern, indirect-structural-match, invalid-type-param-default, keyword-idents, late-bound-lifetime-arguments, macro-expanded-macro-exports-accessed-by-absolute-paths, mutable-borrow-reservation-conflict, nontrivial-structural-match, order-dependent-trait-objects, patterns-in-fns-without-body, pointer-structural-match, private-in-public, proc-macro-derive-resolution-fallback, pub-use-of-private-extern-crate, safe-packed-borrows, soft-unstable, tyvar-behind-raw-pointer, uninhabited-static, unstable-name-collisions, where-clauses-object-safety
nonstandard-styleViolation of standard naming conventionsnon-camel-case-types, non-snake-case, non-upper-case-globals
rust-2018-compatibilityLints used to transition code from the 2015 edition to 2018absolute-paths-not-starting-with-crate, anonymous-parameters, keyword-idents, tyvar-behind-raw-pointer
rust-2018-idiomsLints to nudge you toward idiomatic features of Rust 2018bare-trait-objects, elided-lifetimes-in-paths, ellipsis-inclusive-range-patterns, explicit-outlives-requirements, unused-extern-crates
rustdocRustdoc-specific lintsbroken-intra-doc-links, invalid-codeblock-attributes, invalid-html-tags, missing-doc-code-examples, non-autolinks, private-doc-tests, private-intra-doc-links
unusedLints that detect things being declared but not used, or excess syntaxdead-code, overlapping-patterns, path-statements, redundant-semicolons, unreachable-code, unreachable-patterns, unused-allocation, unused-assignments, unused-attributes, unused-braces, unused-doc-comments, unused-extern-crates, unused-features, unused-imports, unused-labels, unused-macros, unused-must-use, unused-mut, unused-parens, unused-unsafe, unused-variables

Additionally, there's a bad-style lint group that's a deprecated alias for nonstandard-style.

Finally, you can also see the table above by invoking rustc -W help. This will give you the exact values for the specific compiler you have installed.