chore(lints): set more documentation-related lints to deny (#391)

Cargo.toml

@@ -124,6 +124,9 @@ cyw43-pio = { git = "https://github.com/kaspar030/embassy", branch = "for-riot-r
 smoltcp = { git = "https://github.com/smoltcp-rs/smoltcp.git", rev = "125773e282bc2e0c914a49e9c75573926e26e558" }
 
 [workspace.lints.rust]
+# rustc lints are documented here: https://doc.rust-lang.org/rustc/lints/listing/index.html
+private_interfaces = "deny"
+private_bounds = "deny"
 unsafe_op_in_unsafe_fn = "warn"
 unused_must_use = "deny"
 # ... until we figure out a way to generate a list of all used cfg variables
@@ -134,3 +137,6 @@ unexpected_cfgs = "allow"
 # Clippy lints are documented here: https://rust-lang.github.io/rust-clippy/master/index.html
 indexing_slicing = "deny"
 missing_safety_doc = { level = "warn" }
+
+[workspace.lints.rustdoc]
+broken_intra_doc_links = "deny"

src/lib/coapcore/src/lib.rs

@@ -10,6 +10,7 @@
 //! for at least as long as the OSCORE component is tightly coupled to a particular implementation
 //! of [`coap-message`]).
 #![no_std]
+#![feature(lint_reasons)]
 
 // Might warrant a standalone crate at some point
 //

src/lib/coapcore/src/seccontext.rs

@@ -9,6 +9,7 @@ use core::fmt::Write;
 const MAX_CONTEXTS: usize = 4;
 
 /// A pool of security contexts shareable by several users inside a thread.
+#[expect(private_interfaces, reason = "should be addressed eventually")]
 pub type SecContextPool<Crypto> =
     crate::oluru::OrderedPool<SecContextState<Crypto>, MAX_CONTEXTS, LEVEL_COUNT>;
 
@@ -303,10 +304,12 @@ pub enum AuthorizationChecked<I> {
 
 pub enum EdhocResponse<I> {
     // Taking a small state here: We already have a slot in the pool, storing the big data there
+    #[expect(private_interfaces, reason = "should be addressed eventually")]
     OkSend2(COwn),
     // Could have a state Message3Processed -- but do we really want to implement that? (like, just
     // use the EDHOC option)
     OscoreRequest {
+        #[expect(private_interfaces, reason = "should be addressed eventually")]
         kid: COwn,
         correlation: liboscore::raw::oscore_requestid_t,
         extracted: AuthorizationChecked<I>,