warning: unused import: `coap_context_set_pki_root_cas` --> libcoap/src/context.rs:18:5 | 18 | coap_context_set_pki_root_cas, coap_context_set_session_timeout, coap_context_t, coap_event_t, coap_free_context, | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: `#[warn(unused_imports)]` on by default

warning: unused import: `std::ffi::CString` --> libcoap/src/context.rs:23:5 | 23 | use std::ffi::CString; | ^^^^^^^^^^^^^^^^^

warning: unused import: `std::path::Path` --> libcoap/src/context.rs:24:5 | 24 | use std::path::Path; | ^^^^^^^^^^^^^^^

warning: unused import: `std::os::unix::ffi::OsStrExt` --> libcoap/src/context.rs:45:5 | 45 | use std::os::unix::ffi::OsStrExt; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^

warning: use of `.then_some(..).unwrap_or(..)` can be written more clearly with `if .. else ..` --> libcoap/src/crypto/psk/client.rs:115:36 | 115 | self.ctx.raw_cfg.use_cid = use_cid.then_some(1).unwrap_or(0); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `if use_cid { 1 } else { 0 }` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#obfuscated_if_else = note: `#[warn(clippy::obfuscated_if_else)]` on by default

warning: useless conversion to the same type: `std::boxed::Box<[u8]>` --> libcoap/src/crypto/psk/key.rs:166:19 | 166 | data: value.into(), | ^^^^^^^^^^^^ help: consider removing `.into()`: `value` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion

warning: derefed type is same as origin --> libcoap/src/crypto/psk/server.rs:290:23 | 290 | .find(|k| k.identity().as_deref().is_some_and(|kid| kid == identity)) | ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `k.identity()` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_option_as_deref = note: `#[warn(clippy::needless_option_as_deref)]` on by default

warning: this call to `as_ref` does nothing --> libcoap/src/crypto/psk/server.rs:318:20 | 318 | let keys = self.as_ref(); | ^^^^^^^^^^^^^ help: try: `self` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_asref = note: `#[warn(clippy::useless_asref)]` on by default

warning: using `libc::strlen` on a `CString` or `CStr` value --> libcoap/src/types.rs:779:17 | 779 | libc::strlen(uri.uri_str.0.as_ptr()), | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `uri.uri_str.0.as_bytes().len()` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#strlen_on_c_strings = note: `#[warn(clippy::strlen_on_c_strings)]` on by default

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