[INFO] crate chain-p2p 0.1.7 is already in cache
[INFO] extracting crate chain-p2p 0.1.7 into work/ex/clippy-test-run/sources/stable/reg/chain-p2p/0.1.7
[INFO] extracting crate chain-p2p 0.1.7 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/chain-p2p/0.1.7
[INFO] validating manifest of chain-p2p-0.1.7 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of chain-p2p-0.1.7 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing chain-p2p-0.1.7
[INFO] finished frobbing chain-p2p-0.1.7
[INFO] frobbed toml for chain-p2p-0.1.7 written to work/ex/clippy-test-run/sources/stable/reg/chain-p2p/0.1.7/Cargo.toml
[INFO] started frobbing chain-p2p-0.1.7
[INFO] finished frobbing chain-p2p-0.1.7
[INFO] frobbed toml for chain-p2p-0.1.7 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/chain-p2p/0.1.7/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting chain-p2p-0.1.7 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/chain-p2p/0.1.7:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 816fffa2345e82a42224470cd29d8b077248903d7665c4dc1a6110f2a6d8b8b9
[INFO] running `"docker" "start" "-a" "816fffa2345e82a42224470cd29d8b077248903d7665c4dc1a6110f2a6d8b8b9"`
[INFO] [stderr]     Checking chain-p2p v0.1.7 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/p2p/client.rs:60:13
[INFO] [stderr]    |
[INFO] [stderr] 60 |             shutdown: shutdown,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `shutdown`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/p2p/client.rs:61:13
[INFO] [stderr]    |
[INFO] [stderr] 61 |             sender: sender,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `sender`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/p2p/client.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |             receiver: receiver,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `receiver`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/p2p/client.rs:63:13
[INFO] [stderr]    |
[INFO] [stderr] 63 |             addr: addr,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `addr`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/p2p/server.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |             conns: conns,
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: replace it with: `conns`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/p2p/server.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |             cap: cap,
[INFO] [stderr]    |             ^^^^^^^^ help: replace it with: `cap`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/p2p/message.rs:25:17
[INFO] [stderr]    |
[INFO] [stderr] 25 |                 len: len,
[INFO] [stderr]    |                 ^^^^^^^^ help: replace it with: `len`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/p2p/message.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |                 data: data,
[INFO] [stderr]    |                 ^^^^^^^^^^ help: replace it with: `data`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/p2p/message.rs:36:17
[INFO] [stderr]    |
[INFO] [stderr] 36 |                 len: len,
[INFO] [stderr]    |                 ^^^^^^^^ help: replace it with: `len`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/p2p/message.rs:39:17
[INFO] [stderr]    |
[INFO] [stderr] 39 |                 data: data,
[INFO] [stderr]    |                 ^^^^^^^^^^ help: replace it with: `data`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/p2p/mod.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |             sessions: sessions,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `sessions`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/p2p/client.rs:60:13
[INFO] [stderr]    |
[INFO] [stderr] 60 |             shutdown: shutdown,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `shutdown`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/p2p/client.rs:61:13
[INFO] [stderr]    |
[INFO] [stderr] 61 |             sender: sender,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `sender`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/p2p/client.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |             receiver: receiver,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `receiver`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/p2p/client.rs:63:13
[INFO] [stderr]    |
[INFO] [stderr] 63 |             addr: addr,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `addr`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/p2p/server.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |             conns: conns,
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: replace it with: `conns`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/p2p/server.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |             cap: cap,
[INFO] [stderr]    |             ^^^^^^^^ help: replace it with: `cap`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/p2p/message.rs:25:17
[INFO] [stderr]    |
[INFO] [stderr] 25 |                 len: len,
[INFO] [stderr]    |                 ^^^^^^^^ help: replace it with: `len`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/p2p/message.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |                 data: data,
[INFO] [stderr]    |                 ^^^^^^^^^^ help: replace it with: `data`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/p2p/message.rs:36:17
[INFO] [stderr]    |
[INFO] [stderr] 36 |                 len: len,
[INFO] [stderr]    |                 ^^^^^^^^ help: replace it with: `len`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/p2p/message.rs:39:17
[INFO] [stderr]    |
[INFO] [stderr] 39 |                 data: data,
[INFO] [stderr]    |                 ^^^^^^^^^^ help: replace it with: `data`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/p2p/mod.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |             sessions: sessions,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `sessions`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/p2p/server.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |         return None;
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: remove `return` as shown: `None`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/p2p/server.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |         return Err(format!{"Can not find {:?}", addr});
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(format!{"Can not find {:?}", addr})`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/p2p/server.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |         return Ok(true);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(true)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/p2p/message.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |         return [b4, b3, b2, b1]
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `[b4, b3, b2, b1]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/p2p/mod.rs:157:17
[INFO] [stderr]     |
[INFO] [stderr] 157 |                 return Ok(());
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/p2p/mod.rs:159:25
[INFO] [stderr]     |
[INFO] [stderr] 159 |             Err(e)   => return Err(e),
[INFO] [stderr]     |                         ^^^^^^^^^^^^^ help: remove `return` as shown: `Err(e)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/p2p/mod.rs:193:9
[INFO] [stderr]     |
[INFO] [stderr] 193 |         return None;
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: remove `return` as shown: `None`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/p2p/mod.rs:213:13
[INFO] [stderr]     |
[INFO] [stderr] 213 |             return Ok(None); // 长度肯定不够
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(None)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/p2p/mod.rs:227:17
[INFO] [stderr]     |
[INFO] [stderr] 227 |                 return Ok(None);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(None)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/p2p/mod.rs:253:17
[INFO] [stderr]     |
[INFO] [stderr] 253 |                 return Ok(Some(vec));
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Some(vec))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/p2p/mod.rs:274:9
[INFO] [stderr]     |
[INFO] [stderr] 274 |         return Ok(Some(vec_len));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Some(vec_len))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/p2p/server.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |         return None;
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: remove `return` as shown: `None`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/p2p/server.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |         return Err(format!{"Can not find {:?}", addr});
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(format!{"Can not find {:?}", addr})`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/p2p/server.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |         return Ok(true);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(true)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/p2p/message.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |         return [b4, b3, b2, b1]
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `[b4, b3, b2, b1]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/p2p/mod.rs:157:17
[INFO] [stderr]     |
[INFO] [stderr] 157 |                 return Ok(());
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/p2p/mod.rs:159:25
[INFO] [stderr]     |
[INFO] [stderr] 159 |             Err(e)   => return Err(e),
[INFO] [stderr]     |                         ^^^^^^^^^^^^^ help: remove `return` as shown: `Err(e)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/p2p/mod.rs:193:9
[INFO] [stderr]     |
[INFO] [stderr] 193 |         return None;
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: remove `return` as shown: `None`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/p2p/mod.rs:213:13
[INFO] [stderr]     |
[INFO] [stderr] 213 |             return Ok(None); // 长度肯定不够
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(None)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/p2p/mod.rs:227:17
[INFO] [stderr]     |
[INFO] [stderr] 227 |                 return Ok(None);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(None)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/p2p/mod.rs:253:17
[INFO] [stderr]     |
[INFO] [stderr] 253 |                 return Ok(Some(vec));
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Some(vec))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/p2p/mod.rs:274:9
[INFO] [stderr]     |
[INFO] [stderr] 274 |         return Ok(Some(vec_len));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Some(vec_len))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: Consider using an AtomicBool instead of a Mutex here. If you just want the locking behaviour and not the internal type, consider using Mutex<()>.
[INFO] [stderr]   --> src/p2p/client.rs:24:32
[INFO] [stderr]    |
[INFO] [stderr] 24 |             shutdown: Arc::new(Mutex::new(true)),
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::mutex_atomic)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutex_atomic
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `new` usually return `Self`
[INFO] [stderr]   --> src/p2p/client.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 | /     pub fn new(local: usize, addr: SocketAddr,
[INFO] [stderr] 50 | |            shutdown: Arc<Mutex<bool>>,
[INFO] [stderr] 51 | |            sender: Arc<Mutex<Vec<u8>>>, 
[INFO] [stderr] 52 | |            receiver: Arc<Mutex<Vec<Vec<u8>>>>)
[INFO] [stderr] ...  |
[INFO] [stderr] 84 | |         Ok(())
[INFO] [stderr] 85 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_ret_no_self)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_ret_no_self
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `buf`.
[INFO] [stderr]   --> src/p2p/client.rs:95:26
[INFO] [stderr]    |
[INFO] [stderr] 95 |                 for i in 0..n {
[INFO] [stderr]    |                          ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 95 |                 for <item> in buf.iter().take(n) {
[INFO] [stderr]    |                     ^^^^^^    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: equality checks against false can be replaced by a negation
[INFO] [stderr]    --> src/p2p/client.rs:106:12
[INFO] [stderr]     |
[INFO] [stderr] 106 |         if *self.shutdown.lock().unwrap().deref() == false {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try simplifying it as shown: `!(*self.shutdown.lock().unwrap().deref())`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::bool_comparison)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_comparison
[INFO] [stderr] 
[INFO] [stderr] warning: equality checks against false can be replaced by a negation
[INFO] [stderr]    --> src/p2p/client.rs:139:12
[INFO] [stderr]     |
[INFO] [stderr] 139 |         if *self.shutdown.lock().unwrap().deref() == false {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try simplifying it as shown: `!(*self.shutdown.lock().unwrap().deref())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_comparison
[INFO] [stderr] 
[INFO] [stderr] warning: equality checks against false can be replaced by a negation
[INFO] [stderr]   --> src/p2p/server.rs:46:16
[INFO] [stderr]    |
[INFO] [stderr] 46 |             if *self.conns[i].state.lock().unwrap() == false {
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try simplifying it as shown: `!(*self.conns[i].state.lock().unwrap())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_comparison
[INFO] [stderr] 
[INFO] [stderr] warning: this boolean expression can be simplified
[INFO] [stderr]    --> src/p2p/server.rs:100:16
[INFO] [stderr]     |
[INFO] [stderr] 100 |             if !conns.lock().unwrap().conns[i].addr.is_none() {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `conns.lock().unwrap().conns[i].addr.is_some()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::nonminimal_bool)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/p2p/server.rs:107:12
[INFO] [stderr]     |
[INFO] [stderr] 107 |         if vec.len() == 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `vec.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: this boolean expression can be simplified
[INFO] [stderr]    --> src/p2p/server.rs:121:16
[INFO] [stderr]     |
[INFO] [stderr] 121 |             if !conns.lock().unwrap().conns[i].conn_addr.is_none() {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `conns.lock().unwrap().conns[i].conn_addr.is_some()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/p2p/server.rs:124:33
[INFO] [stderr]     |
[INFO] [stderr] 124 |                 let peer_addr = conns.lock().unwrap().conns[i].addr.clone().unwrap();
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `conns.lock().unwrap().conns[i].addr`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/p2p/server.rs:131:12
[INFO] [stderr]     |
[INFO] [stderr] 131 |         if vec.len() == 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `vec.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] error: this loop never actually loops
[INFO] [stderr]    --> src/p2p/server.rs:143:9
[INFO] [stderr]     |
[INFO] [stderr] 143 | /         loop {
[INFO] [stderr] 144 | |             let recv_len = send_thread.lock().unwrap().len();
[INFO] [stderr] 145 | |             // 对信息处理进行封装 
[INFO] [stderr] 146 | |             // 整体长度不够5  等 -> None
[INFO] [stderr] ...   |
[INFO] [stderr] 188 | |             return Ok(Some(msg));
[INFO] [stderr] 189 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::never_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#never_loop
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/p2p/server.rs:155:30
[INFO] [stderr]     |
[INFO] [stderr] 155 |                 len_tem.push(send_thread.lock().unwrap()[i].clone());
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `send_thread.lock().unwrap()[i]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/p2p/server.rs:166:27
[INFO] [stderr]     |
[INFO] [stderr] 166 |                 let end = send_thread.lock().unwrap()[msg_len+4].clone();
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `send_thread.lock().unwrap()[msg_len+4]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] error: this loop never actually loops
[INFO] [stderr]    --> src/p2p/server.rs:199:13
[INFO] [stderr]     |
[INFO] [stderr] 199 | /             loop {
[INFO] [stderr] 200 | |                 
[INFO] [stderr] 201 | |                 recv_thread.lock().unwrap().push(rx.recv().unwrap());
[INFO] [stderr] 202 | |                 break;
[INFO] [stderr] 203 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#never_loop
[INFO] [stderr] 
[INFO] [stderr] warning: Consider using an AtomicBool instead of a Mutex here. If you just want the locking behaviour and not the internal type, consider using Mutex<()>.
[INFO] [stderr]    --> src/p2p/server.rs:223:29
[INFO] [stderr]     |
[INFO] [stderr] 223 |             state: Arc::new(Mutex::new(false)), // 未激活
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutex_atomic
[INFO] [stderr] 
[INFO] [stderr] warning: `if _ { .. } else { .. }` is an expression
[INFO] [stderr]    --> src/p2p/server.rs:301:13
[INFO] [stderr]     |
[INFO] [stderr] 301 | /             let mut flag = true;
[INFO] [stderr] 302 | |             if msg[5] == 0 && msg[6] == 0 {
[INFO] [stderr] 303 | |                 // assert_eq!(1, 2);
[INFO] [stderr] 304 | |                 // println!("这是停止信息");
[INFO] [stderr] 305 | |                 flag = false;
[INFO] [stderr] 306 | |             }
[INFO] [stderr]     | |_____________^ help: it is more idiomatic to write: `let <mut> flag = if msg[5] == 0 && msg[6] == 0 { false } else { true };`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_let_if_seq)] on by default
[INFO] [stderr]     = note: you might not need `mut` at all
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_let_if_seq
[INFO] [stderr] 
[INFO] [stderr] warning: Consider using an AtomicBool instead of a Mutex here. If you just want the locking behaviour and not the internal type, consider using Mutex<()>.
[INFO] [stderr]   --> src/p2p/client.rs:24:32
[INFO] [stderr]    |
[INFO] [stderr] 24 |             shutdown: Arc::new(Mutex::new(true)),
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::mutex_atomic)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutex_atomic
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `new` usually return `Self`
[INFO] [stderr]   --> src/p2p/client.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 | /     pub fn new(local: usize, addr: SocketAddr,
[INFO] [stderr] 50 | |            shutdown: Arc<Mutex<bool>>,
[INFO] [stderr] 51 | |            sender: Arc<Mutex<Vec<u8>>>, 
[INFO] [stderr] 52 | |            receiver: Arc<Mutex<Vec<Vec<u8>>>>)
[INFO] [stderr] ...  |
[INFO] [stderr] 84 | |         Ok(())
[INFO] [stderr] 85 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_ret_no_self)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_ret_no_self
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]   --> src/p2p/message.rs:53:19
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub fn to_vec(&mut self) -> Vec<u8> {
[INFO] [stderr]    |                   ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::wrong_self_convention)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `buf`.
[INFO] [stderr]   --> src/p2p/client.rs:95:26
[INFO] [stderr]    |
[INFO] [stderr] 95 |                 for i in 0..n {
[INFO] [stderr]    |                          ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 95 |                 for <item> in buf.iter().take(n) {
[INFO] [stderr]    |                     ^^^^^^    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: equality checks against false can be replaced by a negation
[INFO] [stderr]    --> src/p2p/client.rs:106:12
[INFO] [stderr]     |
[INFO] [stderr] 106 |         if *self.shutdown.lock().unwrap().deref() == false {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try simplifying it as shown: `!(*self.shutdown.lock().unwrap().deref())`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::bool_comparison)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_comparison
[INFO] [stderr] 
[INFO] [stderr] warning: equality checks against false can be replaced by a negation
[INFO] [stderr]    --> src/p2p/client.rs:139:12
[INFO] [stderr]     |
[INFO] [stderr] 139 |         if *self.shutdown.lock().unwrap().deref() == false {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try simplifying it as shown: `!(*self.shutdown.lock().unwrap().deref())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_comparison
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/p2p/mod.rs:112:9
[INFO] [stderr]     |
[INFO] [stderr] 112 |         Conns::update(conns_update, index, conn_addr);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/p2p/mod.rs:123:9
[INFO] [stderr]     |
[INFO] [stderr] 123 |         Conns::remove(conns_dis, index);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: equality checks against false can be replaced by a negation
[INFO] [stderr]   --> src/p2p/server.rs:46:16
[INFO] [stderr]    |
[INFO] [stderr] 46 |             if *self.conns[i].state.lock().unwrap() == false {
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try simplifying it as shown: `!(*self.conns[i].state.lock().unwrap())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_comparison
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/p2p/mod.rs:152:20
[INFO] [stderr]     |
[INFO] [stderr] 152 |         let addr = manager.addr.clone();
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `manager.addr`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: this boolean expression can be simplified
[INFO] [stderr]    --> src/p2p/server.rs:100:16
[INFO] [stderr]     |
[INFO] [stderr] 100 |             if !conns.lock().unwrap().conns[i].addr.is_none() {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `conns.lock().unwrap().conns[i].addr.is_some()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::nonminimal_bool)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/p2p/server.rs:107:12
[INFO] [stderr]     |
[INFO] [stderr] 107 |         if vec.len() == 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `vec.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: this boolean expression can be simplified
[INFO] [stderr]    --> src/p2p/server.rs:121:16
[INFO] [stderr]     |
[INFO] [stderr] 121 |             if !conns.lock().unwrap().conns[i].conn_addr.is_none() {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `conns.lock().unwrap().conns[i].conn_addr.is_some()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/p2p/mod.rs:219:30
[INFO] [stderr]     |
[INFO] [stderr] 219 |                 len_tem.push(r_cache.lock().unwrap()[i].clone());
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `r_cache.lock().unwrap()[i]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/p2p/server.rs:124:33
[INFO] [stderr]     |
[INFO] [stderr] 124 |                 let peer_addr = conns.lock().unwrap().conns[i].addr.clone().unwrap();
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `conns.lock().unwrap().conns[i].addr`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/p2p/mod.rs:232:27
[INFO] [stderr]     |
[INFO] [stderr] 232 |                 let end = r_cache.lock().unwrap()[msg_len+4].clone();
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `r_cache.lock().unwrap()[msg_len+4]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/p2p/server.rs:131:12
[INFO] [stderr]     |
[INFO] [stderr] 131 |         if vec.len() == 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `vec.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] error: this loop never actually loops
[INFO] [stderr]    --> src/p2p/server.rs:143:9
[INFO] [stderr]     |
[INFO] [stderr] 143 | /         loop {
[INFO] [stderr] 144 | |             let recv_len = send_thread.lock().unwrap().len();
[INFO] [stderr] 145 | |             // 对信息处理进行封装 
[INFO] [stderr] 146 | |             // 整体长度不够5  等 -> None
[INFO] [stderr] ...   |
[INFO] [stderr] 188 | |             return Ok(Some(msg));
[INFO] [stderr] 189 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::never_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#never_loop
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/p2p/server.rs:155:30
[INFO] [stderr]     |
[INFO] [stderr] 155 |                 len_tem.push(send_thread.lock().unwrap()[i].clone());
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `send_thread.lock().unwrap()[i]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/p2p/server.rs:166:27
[INFO] [stderr]     |
[INFO] [stderr] 166 |                 let end = send_thread.lock().unwrap()[msg_len+4].clone();
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `send_thread.lock().unwrap()[msg_len+4]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] error: this loop never actually loops
[INFO] [stderr]    --> src/p2p/server.rs:199:13
[INFO] [stderr]     |
[INFO] [stderr] 199 | /             loop {
[INFO] [stderr] 200 | |                 
[INFO] [stderr] 201 | |                 recv_thread.lock().unwrap().push(rx.recv().unwrap());
[INFO] [stderr] 202 | |                 break;
[INFO] [stderr] 203 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#never_loop
[INFO] [stderr] 
[INFO] [stderr] warning: Consider using an AtomicBool instead of a Mutex here. If you just want the locking behaviour and not the internal type, consider using Mutex<()>.
[INFO] [stderr]    --> src/p2p/server.rs:223:29
[INFO] [stderr]     |
[INFO] [stderr] 223 |             state: Arc::new(Mutex::new(false)), // 未激活
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutex_atomic
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `chain-p2p`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: `if _ { .. } else { .. }` is an expression
[INFO] [stderr]    --> src/p2p/server.rs:301:13
[INFO] [stderr]     |
[INFO] [stderr] 301 | /             let mut flag = true;
[INFO] [stderr] 302 | |             if msg[5] == 0 && msg[6] == 0 {
[INFO] [stderr] 303 | |                 // assert_eq!(1, 2);
[INFO] [stderr] 304 | |                 // println!("这是停止信息");
[INFO] [stderr] 305 | |                 flag = false;
[INFO] [stderr] 306 | |             }
[INFO] [stderr]     | |_____________^ help: it is more idiomatic to write: `let <mut> flag = if msg[5] == 0 && msg[6] == 0 { false } else { true };`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_let_if_seq)] on by default
[INFO] [stderr]     = note: you might not need `mut` at all
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_let_if_seq
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]   --> src/p2p/message.rs:53:19
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub fn to_vec(&mut self) -> Vec<u8> {
[INFO] [stderr]    |                   ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::wrong_self_convention)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/p2p/mod.rs:112:9
[INFO] [stderr]     |
[INFO] [stderr] 112 |         Conns::update(conns_update, index, conn_addr);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/p2p/mod.rs:123:9
[INFO] [stderr]     |
[INFO] [stderr] 123 |         Conns::remove(conns_dis, index);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/p2p/mod.rs:152:20
[INFO] [stderr]     |
[INFO] [stderr] 152 |         let addr = manager.addr.clone();
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `manager.addr`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/p2p/mod.rs:219:30
[INFO] [stderr]     |
[INFO] [stderr] 219 |                 len_tem.push(r_cache.lock().unwrap()[i].clone());
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `r_cache.lock().unwrap()[i]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/p2p/mod.rs:232:27
[INFO] [stderr]     |
[INFO] [stderr] 232 |                 let end = r_cache.lock().unwrap()[msg_len+4].clone();
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `r_cache.lock().unwrap()[msg_len+4]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `chain-p2p`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "816fffa2345e82a42224470cd29d8b077248903d7665c4dc1a6110f2a6d8b8b9"`
[INFO] running `"docker" "rm" "-f" "816fffa2345e82a42224470cd29d8b077248903d7665c4dc1a6110f2a6d8b8b9"`
[INFO] [stdout] 816fffa2345e82a42224470cd29d8b077248903d7665c4dc1a6110f2a6d8b8b9