[INFO] crate mould 0.0.22 is already in cache
[INFO] extracting crate mould 0.0.22 into work/ex/clippy-test-run/sources/stable/reg/mould/0.0.22
[INFO] extracting crate mould 0.0.22 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/mould/0.0.22
[INFO] validating manifest of mould-0.0.22 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 mould-0.0.22 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 mould-0.0.22
[INFO] finished frobbing mould-0.0.22
[INFO] frobbed toml for mould-0.0.22 written to work/ex/clippy-test-run/sources/stable/reg/mould/0.0.22/Cargo.toml
[INFO] started frobbing mould-0.0.22
[INFO] finished frobbing mould-0.0.22
[INFO] frobbed toml for mould-0.0.22 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/mould/0.0.22/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 mould-0.0.22 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-3/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/mould/0.0.22:/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] b0567c1365e87cae310e9489dc5612574d33d7500061b9bb6387a7b5f5501108
[INFO] running `"docker" "start" "-a" "b0567c1365e87cae310e9489dc5612574d33d7500061b9bb6387a7b5f5501108"`
[INFO] [stderr]     Checking websocket v0.19.2
[INFO] [stderr]     Checking mould v0.0.22 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/worker.rs:60:23
[INFO] [stderr]    |
[INFO] [stderr] 60 |         RejectWorker {reason: reason}
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^ help: replace it with: `reason`
[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/session.rs:75:13
[INFO] [stderr]    |
[INFO] [stderr] 75 |             key: key,
[INFO] [stderr]    |             ^^^^^^^^ help: replace it with: `key`
[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/session.rs:244:13
[INFO] [stderr]     |
[INFO] [stderr] 244 |             client: client,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: replace it with: `client`
[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/session.rs:245:13
[INFO] [stderr]     |
[INFO] [stderr] 245 |             session: session,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^ help: replace it with: `session`
[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/session.rs:271:41
[INFO] [stderr]     |
[INFO] [stderr] 271 |                                         action: action,
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^ help: replace it with: `action`
[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/session.rs:272:41
[INFO] [stderr]     |
[INFO] [stderr] 272 |                                         payload: payload,
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^ help: replace it with: `payload`
[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/session.rs:291:41
[INFO] [stderr]     |
[INFO] [stderr] 291 |                                         action: action,
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^ help: replace it with: `action`
[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/session.rs:292:41
[INFO] [stderr]     |
[INFO] [stderr] 292 |                                         payload: payload,
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^ help: replace it with: `payload`
[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/server.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |             builder: builder,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^ help: replace it with: `builder`
[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/worker.rs:60:23
[INFO] [stderr]    |
[INFO] [stderr] 60 |         RejectWorker {reason: reason}
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^ help: replace it with: `reason`
[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/session.rs:75:13
[INFO] [stderr]    |
[INFO] [stderr] 75 |             key: key,
[INFO] [stderr]    |             ^^^^^^^^ help: replace it with: `key`
[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/session.rs:244:13
[INFO] [stderr]     |
[INFO] [stderr] 244 |             client: client,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: replace it with: `client`
[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/session.rs:245:13
[INFO] [stderr]     |
[INFO] [stderr] 245 |             session: session,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^ help: replace it with: `session`
[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/session.rs:271:41
[INFO] [stderr]     |
[INFO] [stderr] 271 |                                         action: action,
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^ help: replace it with: `action`
[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/session.rs:272:41
[INFO] [stderr]     |
[INFO] [stderr] 272 |                                         payload: payload,
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^ help: replace it with: `payload`
[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/session.rs:291:41
[INFO] [stderr]     |
[INFO] [stderr] 291 |                                         action: action,
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^ help: replace it with: `action`
[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/session.rs:292:41
[INFO] [stderr]     |
[INFO] [stderr] 292 |                                         payload: payload,
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^ help: replace it with: `payload`
[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/server.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |             builder: builder,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^ help: replace it with: `builder`
[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: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/session.rs:89:14
[INFO] [stderr]    |
[INFO] [stderr] 89 |             .ok_or(ExtractError::from(key))
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| ExtractError::from(key))`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/session.rs:96:14
[INFO] [stderr]    |
[INFO] [stderr] 96 |             .ok_or(ExtractError::from(key))
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| ExtractError::from(key))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]    --> src/session.rs:103:14
[INFO] [stderr]     |
[INFO] [stderr] 103 |             .ok_or(ExtractError::from(key))
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| ExtractError::from(key))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]    --> src/session.rs:110:14
[INFO] [stderr]     |
[INFO] [stderr] 110 |             .ok_or(ExtractError::from(key))
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| ExtractError::from(key))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]    --> src/session.rs:117:14
[INFO] [stderr]     |
[INFO] [stderr] 117 |             .ok_or(ExtractError::from(key))
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| ExtractError::from(key))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]    --> src/session.rs:124:14
[INFO] [stderr]     |
[INFO] [stderr] 124 |             .ok_or(ExtractError::from(key))
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| ExtractError::from(key))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/session.rs:230:5
[INFO] [stderr]     |
[INFO] [stderr] 230 | /     fn deref<'a>(&'a self) -> &'a T {
[INFO] [stderr] 231 | |         &self.session
[INFO] [stderr] 232 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_lifetimes)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/session.rs:236:5
[INFO] [stderr]     |
[INFO] [stderr] 236 | /     fn deref_mut<'a>(&'a mut self) -> &'a mut T {
[INFO] [stderr] 237 | |         &mut self.session
[INFO] [stderr] 238 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> src/server.rs:211:62
[INFO] [stderr]     |
[INFO] [stderr] 211 |                             self.send_message(&Message::ping("mould-ping".as_bytes()))?;
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"mould-ping"`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::string_lit_as_bytes)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/server.rs:303:37
[INFO] [stderr]     |
[INFO] [stderr] 303 |             self.writer.write_all(&['\n' as u8])?;
[INFO] [stderr]     |                                     ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::char_lit_as_u8)] on by default
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'\n'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/session.rs:89:14
[INFO] [stderr]    |
[INFO] [stderr] 89 |             .ok_or(ExtractError::from(key))
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| ExtractError::from(key))`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/session.rs:96:14
[INFO] [stderr]    |
[INFO] [stderr] 96 |             .ok_or(ExtractError::from(key))
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| ExtractError::from(key))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]    --> src/session.rs:103:14
[INFO] [stderr]     |
[INFO] [stderr] 103 |             .ok_or(ExtractError::from(key))
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| ExtractError::from(key))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]    --> src/session.rs:110:14
[INFO] [stderr]     |
[INFO] [stderr] 110 |             .ok_or(ExtractError::from(key))
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| ExtractError::from(key))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]    --> src/session.rs:117:14
[INFO] [stderr]     |
[INFO] [stderr] 117 |             .ok_or(ExtractError::from(key))
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| ExtractError::from(key))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]    --> src/session.rs:124:14
[INFO] [stderr]     |
[INFO] [stderr] 124 |             .ok_or(ExtractError::from(key))
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| ExtractError::from(key))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/session.rs:230:5
[INFO] [stderr]     |
[INFO] [stderr] 230 | /     fn deref<'a>(&'a self) -> &'a T {
[INFO] [stderr] 231 | |         &self.session
[INFO] [stderr] 232 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_lifetimes)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/session.rs:236:5
[INFO] [stderr]     |
[INFO] [stderr] 236 | /     fn deref_mut<'a>(&'a mut self) -> &'a mut T {
[INFO] [stderr] 237 | |         &mut self.session
[INFO] [stderr] 238 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> src/server.rs:211:62
[INFO] [stderr]     |
[INFO] [stderr] 211 |                             self.send_message(&Message::ping("mould-ping".as_bytes()))?;
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"mould-ping"`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::string_lit_as_bytes)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/server.rs:303:37
[INFO] [stderr]     |
[INFO] [stderr] 303 |             self.writer.write_all(&['\n' as u8])?;
[INFO] [stderr]     |                                     ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::char_lit_as_u8)] on by default
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'\n'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.53s
[INFO] running `"docker" "inspect" "b0567c1365e87cae310e9489dc5612574d33d7500061b9bb6387a7b5f5501108"`
[INFO] running `"docker" "rm" "-f" "b0567c1365e87cae310e9489dc5612574d33d7500061b9bb6387a7b5f5501108"`
[INFO] [stdout] b0567c1365e87cae310e9489dc5612574d33d7500061b9bb6387a7b5f5501108