warning: usage of a legacy numeric constant
  --> src/lib.rs:69:29
   |
69 |             max_frame_size: std::u16::MAX as u32,
   |                             ^^^^^^^^^^^^^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
help: use the associated constant instead
   |
69 |             max_frame_size: u16::MAX as u32,
   |                             ~~~~~~~~

warning: usage of a legacy numeric constant
    --> src/session.rs:1177:30
     |
1177 |             incoming_window: std::u32::MAX,
     |                              ^^^^^^^^^^^^^
     |
     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
help: use the associated constant instead
     |
1177 |             incoming_window: u32::MAX,
     |                              ~~~~~~~~

warning: usage of a legacy numeric constant
    --> src/session.rs:1150:34
     |
1150 |                 incoming_window: std::u32::MAX,
     |                                  ^^^^^^^^^^^^^
     |
     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
help: use the associated constant instead
     |
1150 |                 incoming_window: u32::MAX,
     |                                  ~~~~~~~~

warning: usage of a legacy numeric constant
   --> src/connection.rs:310:25
    |
310 |             handle_max: std::u32::MAX,
    |                         ^^^^^^^^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
help: use the associated constant instead
    |
310 |             handle_max: u32::MAX,
    |                         ~~~~~~~~

warning: usage of a legacy numeric constant
   --> src/connection.rs:308:30
    |
308 |             incoming_window: std::u32::MAX,
    |                              ^^^^^^^^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
help: use the associated constant instead
    |
308 |             incoming_window: u32::MAX,
    |                              ~~~~~~~~

warning: usage of a legacy numeric constant
   --> src/connection.rs:200:37
    |
200 |                         handle_max: std::u32::MAX,
    |                                     ^^^^^^^^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
help: use the associated constant instead
    |
200 |                         handle_max: u32::MAX,
    |                                     ~~~~~~~~

warning: usage of a legacy numeric constant
   --> src/connection.rs:199:42
    |
199 |                         outgoing_window: std::u32::MAX,
    |                                          ^^^^^^^^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
help: use the associated constant instead
    |
199 |                         outgoing_window: u32::MAX,
    |                                          ~~~~~~~~

warning: usage of a legacy numeric constant
   --> src/connection.rs:198:42
    |
198 |                         incoming_window: std::u32::MAX,
    |                                          ^^^^^^^^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
    = note: `#[warn(clippy::legacy_numeric_constants)]` on by default
help: use the associated constant instead
    |
198 |                         incoming_window: u32::MAX,
    |                                          ~~~~~~~~

warning: struct `WeakCell` is never constructed
  --> src/cell.rs:10:19
   |
10 | pub(crate) struct WeakCell<T> {
   |                   ^^^^^^^^
   |
   = note: `#[warn(dead_code)]` on by default

warning: importing legacy numeric constants
 --> codec/src/protocol/definitions.rs:5:5
  |
5 | use std::u8;
  |     ^^^^^^^
  |
  = help: remove this import
  = note: then `u8::<CONST>` will resolve to the respective associated constant
  = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants

warning: assigning the result of `Clone::clone()` may be inefficient
   --> codec/src/message/message.rs:263:40
    |
263 |             msg.set_properties(|props| props.correlation_id = data.message_id.clone());
    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `clone_from()`: `props.correlation_id.clone_from(&data.message_id)`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assigning_clones
    = note: `#[warn(clippy::assigning_clones)]` on by default

warning: usage of a legacy numeric constant
  --> codec/src/message/body.rs:78:25
   |
78 |             if length > std::u8::MAX as usize {
   |                         ^^^^^^^^^^^^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
help: use the associated constant instead
   |
78 |             if length > u8::MAX as usize {
   |                         ~~~~~~~

warning: usage of a legacy numeric constant
  --> codec/src/message/body.rs:48:45
   |
48 |             let size = length + if length > std::u8::MAX as usize { 5 } else { 2 };
   |                                             ^^^^^^^^^^^^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
help: use the associated constant instead
   |
48 |             let size = length + if length > u8::MAX as usize { 5 } else { 2 };
   |                                             ~~~~~~~

warning: importing legacy numeric constants
 --> codec/src/codec/encode.rs:2:37
  |
2 | use std::{collections::HashMap, i8, u8};
  |                                     ^^
  |
  = help: remove this import
  = note: then `u8::<CONST>` will resolve to the respective associated constant
  = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants

warning: importing legacy numeric constants
 --> codec/src/codec/encode.rs:2:33
  |
2 | use std::{collections::HashMap, i8, u8};
  |                                 ^^
  |
  = help: remove this import
  = note: then `i8::<CONST>` will resolve to the respective associated constant
  = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants

warning: importing legacy numeric constants
 --> codec/src/codec/decode.rs:1:79
  |
1 | use std::{char, collections, convert::TryFrom, hash::BuildHasher, hash::Hash, u8};
  |                                                                               ^^
  |
  = help: remove this import
  = note: then `u8::<CONST>` will resolve to the respective associated constant
  = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
  = note: `#[warn(clippy::legacy_numeric_constants)]` on by default