warning: this `if` statement can be collapsed
   --> xmtp_id/src/associations/association_log.rs:121:9
    |
121 | /         if self.new_member_signature.signature_kind() == SignatureKind::LegacyDelegated {
122 | |             if existing_state
123 | |                 .xid()
124 | |                 .ne(&generate_xid(&existing_member_identifier.to_string(), &0))
...   |
127 | |             }
128 | |         }
    | |_________^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
    = note: `#[warn(clippy::collapsible_if)]` on by default
help: collapse nested if block
    |
121 ~         if self.new_member_signature.signature_kind() == SignatureKind::LegacyDelegated && existing_state
122 +                 .xid()
123 +                 .ne(&generate_xid(&existing_member_identifier.to_string(), &0)) {
124 +             return Err(AssociationError::LegacySignatureReuse);
125 +         }
    |

warning: redundant closure
  --> xmtp_mls/src/groups/subscriptions.rs:89:13
   |
89 |             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: unnecessary map of the identity function
  --> xmtp_mls/src/groups/members.rs:42:22
   |
42 |                   .ok()
   |  ______________________^
43 | |                 .map(|basic_credential| (basic_credential))?;
   | |___________________________________________________________^ help: remove the call to `map`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_identity
   = note: `#[warn(clippy::map_identity)]` on by default

warning: returning the result of a `let` binding from a block
  --> xmtp_api_grpc/src/auth_token.rs:59:9
   |
58 |         let token_base64 = base64::engine::general_purpose::STANDARD.encode(&token_bytes);
   |         ---------------------------------------------------------------------------------- unnecessary `let` binding
59 |         token_base64
   |         ^^^^^^^^^^^^
   |
   = 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
   |
58 ~         
59 ~         base64::engine::general_purpose::STANDARD.encode(&token_bytes)
   |

warning: the borrowed expression implements the required traits
    --> xmtp_proto/src/gen/xmtp.mls.message_contents.serde.rs:2424:91
     |
2424 |                     struct_ser.serialize_field("content", 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: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:2951:86
     |
2951 |             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