[INFO] updating cached repository spencedalley/rust_finite_state_machine
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/spencedalley/rust_finite_state_machine
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/spencedalley/rust_finite_state_machine" "work/ex/clippy-test-run/sources/stable/gh/spencedalley/rust_finite_state_machine"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/spencedalley/rust_finite_state_machine'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/spencedalley/rust_finite_state_machine" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/spencedalley/rust_finite_state_machine"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/spencedalley/rust_finite_state_machine'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 73896eee1d6ca5e5bb3baa1b18eea9719995f72a
[INFO] sha for GitHub repo spencedalley/rust_finite_state_machine: 73896eee1d6ca5e5bb3baa1b18eea9719995f72a
[INFO] validating manifest of spencedalley/rust_finite_state_machine 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 spencedalley/rust_finite_state_machine 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 spencedalley/rust_finite_state_machine
[INFO] finished frobbing spencedalley/rust_finite_state_machine
[INFO] frobbed toml for spencedalley/rust_finite_state_machine written to work/ex/clippy-test-run/sources/stable/gh/spencedalley/rust_finite_state_machine/Cargo.toml
[INFO] started frobbing spencedalley/rust_finite_state_machine
[INFO] finished frobbing spencedalley/rust_finite_state_machine
[INFO] frobbed toml for spencedalley/rust_finite_state_machine written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/spencedalley/rust_finite_state_machine/Cargo.toml
[INFO] crate spencedalley/rust_finite_state_machine has a lockfile. skipping
[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 spencedalley/rust_finite_state_machine against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/spencedalley/rust_finite_state_machine:/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 -Dclippy::into_iter_on_array" "-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] a6a35682c2526ee4606c845322450ab9a507b10ad06dde7ddf20d89c29a08f9e
[INFO] running `"docker" "start" "-a" "a6a35682c2526ee4606c845322450ab9a507b10ad06dde7ddf20d89c29a08f9e"`
[INFO] [stderr]     Checking finite_state_machines v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/state_match.rs:18:26
[INFO] [stderr]    |
[INFO] [stderr] 18 |                 '#' => { return (None, MachineState::Comment); }
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Comment)`
[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/state_match.rs:19:26
[INFO] [stderr]    |
[INFO] [stderr] 19 |                 '^' => { return (None, MachineState::Upper); }
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Upper)`
[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/state_match.rs:20:26
[INFO] [stderr]    |
[INFO] [stderr] 20 |                 '_' => { return (None, MachineState::Lower); }
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Lower)`
[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/state_match.rs:21:24
[INFO] [stderr]    |
[INFO] [stderr] 21 |                 _ => { return (Some(character), MachineState::Normal); } 
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(Some(character), MachineState::Normal)`
[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/state_match.rs:26:17
[INFO] [stderr]    |
[INFO] [stderr] 26 |                 return (None, MachineState::Normal); 
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Normal)`
[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/state_match.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |                 return (None, MachineState::Comment); 
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Comment)`
[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/state_match.rs:33:17
[INFO] [stderr]    |
[INFO] [stderr] 33 |                 return (None, MachineState::Normal); 
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Normal)`
[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/state_match.rs:35:17
[INFO] [stderr]    |
[INFO] [stderr] 35 |                 return (Some(character.to_ascii_uppercase()), MachineState::Upper); 
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(Some(character.to_ascii_uppercase()), MachineState::Upper)`
[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/state_match.rs:40:17
[INFO] [stderr]    |
[INFO] [stderr] 40 |                 return (None, MachineState::Normal); 
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Normal)`
[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/state_match.rs:42:17
[INFO] [stderr]    |
[INFO] [stderr] 42 |                 return (Some(character.to_ascii_lowercase()), MachineState::Lower); 
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(Some(character.to_ascii_lowercase()), MachineState::Lower)`
[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: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
[INFO] [stderr]   --> src/state_match.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     use std::ascii::AsciiExt; 
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stderr]   --> src/state_match.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     use std::ascii::AsciiExt; 
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/state_match.rs:18:26
[INFO] [stderr]    |
[INFO] [stderr] 18 |                 '#' => { return (None, MachineState::Comment); }
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Comment)`
[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/state_match.rs:19:26
[INFO] [stderr]    |
[INFO] [stderr] 19 |                 '^' => { return (None, MachineState::Upper); }
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Upper)`
[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/state_match.rs:20:26
[INFO] [stderr]    |
[INFO] [stderr] 20 |                 '_' => { return (None, MachineState::Lower); }
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Lower)`
[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/state_match.rs:21:24
[INFO] [stderr]    |
[INFO] [stderr] 21 |                 _ => { return (Some(character), MachineState::Normal); } 
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(Some(character), MachineState::Normal)`
[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/state_match.rs:26:17
[INFO] [stderr]    |
[INFO] [stderr] 26 |                 return (None, MachineState::Normal); 
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Normal)`
[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/state_match.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |                 return (None, MachineState::Comment); 
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Comment)`
[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/state_match.rs:33:17
[INFO] [stderr]    |
[INFO] [stderr] 33 |                 return (None, MachineState::Normal); 
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Normal)`
[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/state_match.rs:35:17
[INFO] [stderr]    |
[INFO] [stderr] 35 |                 return (Some(character.to_ascii_uppercase()), MachineState::Upper); 
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(Some(character.to_ascii_uppercase()), MachineState::Upper)`
[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/state_match.rs:40:17
[INFO] [stderr]    |
[INFO] [stderr] 40 |                 return (None, MachineState::Normal); 
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Normal)`
[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/state_match.rs:42:17
[INFO] [stderr]    |
[INFO] [stderr] 42 |                 return (Some(character.to_ascii_lowercase()), MachineState::Lower); 
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(Some(character.to_ascii_lowercase()), MachineState::Lower)`
[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: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
[INFO] [stderr]   --> src/state_match.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     use std::ascii::AsciiExt; 
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/state_match.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | /     match state {
[INFO] [stderr] 16 | |         &MachineState::Normal => {
[INFO] [stderr] 17 | |             match character {
[INFO] [stderr] 18 | |                 '#' => { return (None, MachineState::Comment); }
[INFO] [stderr] ...  |
[INFO] [stderr] 44 | |         }
[INFO] [stderr] 45 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 15 |     match *state {
[INFO] [stderr] 16 |         MachineState::Normal => {
[INFO] [stderr] 17 |             match character {
[INFO] [stderr] 18 |                 '#' => { return (None, MachineState::Comment); }
[INFO] [stderr] 19 |                 '^' => { return (None, MachineState::Upper); }
[INFO] [stderr] 20 |                 '_' => { return (None, MachineState::Lower); }
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stderr]   --> src/state_match.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     use std::ascii::AsciiExt; 
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/state_match.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | /     match state {
[INFO] [stderr] 16 | |         &MachineState::Normal => {
[INFO] [stderr] 17 | |             match character {
[INFO] [stderr] 18 | |                 '#' => { return (None, MachineState::Comment); }
[INFO] [stderr] ...  |
[INFO] [stderr] 44 | |         }
[INFO] [stderr] 45 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 15 |     match *state {
[INFO] [stderr] 16 |         MachineState::Normal => {
[INFO] [stderr] 17 |             match character {
[INFO] [stderr] 18 |                 '#' => { return (None, MachineState::Comment); }
[INFO] [stderr] 19 |                 '^' => { return (None, MachineState::Upper); }
[INFO] [stderr] 20 |                 '_' => { return (None, MachineState::Lower); }
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/state_match.rs:18:26
[INFO] [stderr]    |
[INFO] [stderr] 18 |                 '#' => { return (None, MachineState::Comment); }
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Comment)`
[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/state_match.rs:19:26
[INFO] [stderr]    |
[INFO] [stderr] 19 |                 '^' => { return (None, MachineState::Upper); }
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Upper)`
[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/state_match.rs:20:26
[INFO] [stderr]    |
[INFO] [stderr] 20 |                 '_' => { return (None, MachineState::Lower); }
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Lower)`
[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/state_match.rs:21:24
[INFO] [stderr]    |
[INFO] [stderr] 21 |                 _ => { return (Some(character), MachineState::Normal); } 
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(Some(character), MachineState::Normal)`
[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/state_match.rs:26:17
[INFO] [stderr]    |
[INFO] [stderr] 26 |                 return (None, MachineState::Normal); 
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Normal)`
[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/state_match.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |                 return (None, MachineState::Comment); 
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Comment)`
[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/state_match.rs:33:17
[INFO] [stderr]    |
[INFO] [stderr] 33 |                 return (None, MachineState::Normal); 
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Normal)`
[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/state_match.rs:35:17
[INFO] [stderr]    |
[INFO] [stderr] 35 |                 return (Some(character.to_ascii_uppercase()), MachineState::Upper); 
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(Some(character.to_ascii_uppercase()), MachineState::Upper)`
[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/state_match.rs:40:17
[INFO] [stderr]    |
[INFO] [stderr] 40 |                 return (None, MachineState::Normal); 
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Normal)`
[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/state_match.rs:42:17
[INFO] [stderr]    |
[INFO] [stderr] 42 |                 return (Some(character.to_ascii_lowercase()), MachineState::Lower); 
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(Some(character.to_ascii_lowercase()), MachineState::Lower)`
[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/state_match.rs:18:26
[INFO] [stderr]    |
[INFO] [stderr] 18 |                 '#' => { return (None, MachineState::Comment); }
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Comment)`
[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/state_match.rs:19:26
[INFO] [stderr]    |
[INFO] [stderr] 19 |                 '^' => { return (None, MachineState::Upper); }
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Upper)`
[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/state_match.rs:20:26
[INFO] [stderr]    |
[INFO] [stderr] 20 |                 '_' => { return (None, MachineState::Lower); }
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Lower)`
[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/state_match.rs:21:24
[INFO] [stderr]    |
[INFO] [stderr] 21 |                 _ => { return (Some(character), MachineState::Normal); } 
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(Some(character), MachineState::Normal)`
[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/state_match.rs:26:17
[INFO] [stderr]    |
[INFO] [stderr] 26 |                 return (None, MachineState::Normal); 
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Normal)`
[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/state_match.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |                 return (None, MachineState::Comment); 
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Comment)`
[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/state_match.rs:33:17
[INFO] [stderr]    |
[INFO] [stderr] 33 |                 return (None, MachineState::Normal); 
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Normal)`
[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/state_match.rs:35:17
[INFO] [stderr]    |
[INFO] [stderr] 35 |                 return (Some(character.to_ascii_uppercase()), MachineState::Upper); 
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(Some(character.to_ascii_uppercase()), MachineState::Upper)`
[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/state_match.rs:40:17
[INFO] [stderr]    |
[INFO] [stderr] 40 |                 return (None, MachineState::Normal); 
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(None, MachineState::Normal)`
[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/state_match.rs:42:17
[INFO] [stderr]    |
[INFO] [stderr] 42 |                 return (Some(character.to_ascii_lowercase()), MachineState::Lower); 
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(Some(character.to_ascii_lowercase()), MachineState::Lower)`
[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: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
[INFO] [stderr]   --> src/state_match.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     use std::ascii::AsciiExt; 
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
[INFO] [stderr]   --> src/state_match.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     use std::ascii::AsciiExt; 
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stderr]   --> src/state_match.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     use std::ascii::AsciiExt; 
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stderr]   --> src/state_match.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     use std::ascii::AsciiExt; 
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/state_match.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | /     match state {
[INFO] [stderr] 16 | |         &MachineState::Normal => {
[INFO] [stderr] 17 | |             match character {
[INFO] [stderr] 18 | |                 '#' => { return (None, MachineState::Comment); }
[INFO] [stderr] ...  |
[INFO] [stderr] 44 | |         }
[INFO] [stderr] 45 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 15 |     match *state {
[INFO] [stderr] 16 |         MachineState::Normal => {
[INFO] [stderr] 17 |             match character {
[INFO] [stderr] 18 |                 '#' => { return (None, MachineState::Comment); }
[INFO] [stderr] 19 |                 '^' => { return (None, MachineState::Upper); }
[INFO] [stderr] 20 |                 '_' => { return (None, MachineState::Lower); }
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/state_match.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | /     match state {
[INFO] [stderr] 16 | |         &MachineState::Normal => {
[INFO] [stderr] 17 | |             match character {
[INFO] [stderr] 18 | |                 '#' => { return (None, MachineState::Comment); }
[INFO] [stderr] ...  |
[INFO] [stderr] 44 | |         }
[INFO] [stderr] 45 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 15 |     match *state {
[INFO] [stderr] 16 |         MachineState::Normal => {
[INFO] [stderr] 17 |             match character {
[INFO] [stderr] 18 |                 '#' => { return (None, MachineState::Comment); }
[INFO] [stderr] 19 |                 '^' => { return (None, MachineState::Upper); }
[INFO] [stderr] 20 |                 '_' => { return (None, MachineState::Lower); }
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/main.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 | /         match output {
[INFO] [stderr] 13 | |             // If output is "some" rather than None, put whatever the value is in c
[INFO] [stderr] 14 | |             Some(c) => { processed_string.push(c); }
[INFO] [stderr] 15 | |             None => {}
[INFO] [stderr] 16 | |         }; 
[INFO] [stderr]    | |_________^ help: try this: `if let Some(c) = output { processed_string.push(c); }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/main.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 | /         match output {
[INFO] [stderr] 13 | |             // If output is "some" rather than None, put whatever the value is in c
[INFO] [stderr] 14 | |             Some(c) => { processed_string.push(c); }
[INFO] [stderr] 15 | |             None => {}
[INFO] [stderr] 16 | |         }; 
[INFO] [stderr]    | |_________^ help: try this: `if let Some(c) = output { processed_string.push(c); }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `"docker" "inspect" "a6a35682c2526ee4606c845322450ab9a507b10ad06dde7ddf20d89c29a08f9e"`
[INFO] running `"docker" "rm" "-f" "a6a35682c2526ee4606c845322450ab9a507b10ad06dde7ddf20d89c29a08f9e"`
[INFO] [stdout] a6a35682c2526ee4606c845322450ab9a507b10ad06dde7ddf20d89c29a08f9e