warning: returning the result of a `let` binding from a block
   --> xmtp_mls/src/subscriptions.rs:134:29
    |
130 | / ...                   let result =
131 | | ...                       MlsGroup::new(self, group_id, stream_info.convo_created_at_ns)
132 | | ...                           .process_stream_entry(envelope)
133 | | ...                           .await;
    | |_____________________________________- unnecessary `let` binding
134 |   ...                   result
    |                         ^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
    = note: `#[warn(clippy::let_and_return)]` on by default
help: return the expression directly
    |
130 ~                             
131 ~                             MlsGroup::new(self, group_id, stream_info.convo_created_at_ns)
132 +                                     .process_stream_entry(envelope)
133 +                                     .await
    |

warning: redundant closure
  --> xmtp_mls/src/groups/subscriptions.rs:77:13
   |
77 |             move |message| callback(message),
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the function itself: `callback`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
   = note: `#[warn(clippy::redundant_closure)]` on by default

warning: length comparison to zero
   --> xmtp_mls/src/client.rs:442:12
    |
442 |         if groups.len() > 0 {
    |            ^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!groups.is_empty()`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
    = note: `#[warn(clippy::len_zero)]` on by default

warning: the borrowed expression implements the required traits
   --> xmtp_proto/src/gen/xmtp.mls.message_contents.serde.rs:391:115
    |
391 |                     struct_ser.serialize_field("unsignedLegacyCreateIdentityKey", pbjson::private::base64::encode(&v).as_str())?;
    |                                                                                                                   ^^ help: change this to: `v`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args

warning: the borrowed expression implements the required traits
   --> xmtp_proto/src/gen/xmtp.mls.message_contents.serde.rs:387:99
    |
387 |                     struct_ser.serialize_field("installationKey", pbjson::private::base64::encode(&v).as_str())?;
    |                                                                                                   ^^ help: change this to: `v`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args

warning: the borrowed expression implements the required traits
    --> xmtp_proto/src/gen/xmtp.message_contents.serde.rs:2934:86
     |
2934 |             struct_ser.serialize_field("senderHmac", pbjson::private::base64::encode(&v).as_str())?;
     |                                                                                      ^^ help: change this to: `v`
     |
     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args

warning: the borrowed expression implements the required traits
    --> xmtp_proto/src/gen/xmtp.message_contents.serde.rs:1334:86
     |
1334 |                     struct_ser.serialize_field("v1", pbjson::private::base64::encode(&v).as_str())?;
     |                                                                                      ^^ help: change this to: `v`
     |
     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args
     = note: `#[warn(clippy::needless_borrows_for_generic_args)]` on by default