[INFO] updating cached repository djkoloski/lex_rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/djkoloski/lex_rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/djkoloski/lex_rs" "work/ex/clippy-test-run/sources/stable/gh/djkoloski/lex_rs"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/djkoloski/lex_rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/djkoloski/lex_rs" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/djkoloski/lex_rs"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/djkoloski/lex_rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7c54e49c4086753479a3689d53549a161df5fd08
[INFO] sha for GitHub repo djkoloski/lex_rs: 7c54e49c4086753479a3689d53549a161df5fd08
[INFO] validating manifest of djkoloski/lex_rs 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 djkoloski/lex_rs 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 djkoloski/lex_rs
[INFO] finished frobbing djkoloski/lex_rs
[INFO] frobbed toml for djkoloski/lex_rs written to work/ex/clippy-test-run/sources/stable/gh/djkoloski/lex_rs/Cargo.toml
[INFO] started frobbing djkoloski/lex_rs
[INFO] finished frobbing djkoloski/lex_rs
[INFO] frobbed toml for djkoloski/lex_rs written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/djkoloski/lex_rs/Cargo.toml
[INFO] crate djkoloski/lex_rs 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 djkoloski/lex_rs 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-1/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/djkoloski/lex_rs:/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] 08131f5338936cf7dc7aaa30161ed46940aa710690a0e639b4028da40cc6a62a
[INFO] running `"docker" "start" "-a" "08131f5338936cf7dc7aaa30161ed46940aa710690a0e639b4028da40cc6a62a"`
[INFO] [stderr]     Checking lex_rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `len`
[INFO] [stderr]   --> src/nfa.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn len(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `states`
[INFO] [stderr]   --> src/nfa.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pub fn states(&self) -> impl Iterator<Item = usize> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `edges`
[INFO] [stderr]   --> src/nfa.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn edges(&self, from: usize) -> impl Iterator<Item = (Epsilon<&S>, &usize)> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]   --> src/dfa.rs:50:128
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub fn minimize_from_nfa(&self, mut powerset_to_state: HashMap<Vec<usize>, usize>, is_terminal: impl Fn(usize) -> bool) -> (DFA<S>, HashMap<usize, Vec<usize>>, HashMap<usize, Vec<usize>>) {
[INFO] [stderr]    |                                                                                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::type_complexity)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/dfa.rs:109:20
[INFO] [stderr]     |
[INFO] [stderr] 109 |                 if different.len() > 0 {
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!different.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: you seem to want to iterate on a map's values
[INFO] [stderr]   --> src/lexer.rs:60:27
[INFO] [stderr]    |
[INFO] [stderr] 60 |         for (_, token) in &self.state_to_token {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::for_kv_map)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#for_kv_map
[INFO] [stderr] help: use the corresponding method
[INFO] [stderr]    |
[INFO] [stderr] 60 |         for token in self.state_to_token.values() {
[INFO] [stderr]    |             ^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]    --> src/nfa.rs:104:47
[INFO] [stderr]     |
[INFO] [stderr] 104 |                     transitions.entry(symbol).or_insert(HashSet::new()).insert(to);
[INFO] [stderr]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(HashSet::new)`
[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: method is never used: `len`
[INFO] [stderr]   --> src/nfa.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn len(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `states`
[INFO] [stderr]   --> src/nfa.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pub fn states(&self) -> impl Iterator<Item = usize> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `edges`
[INFO] [stderr]   --> src/nfa.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn edges(&self, from: usize) -> impl Iterator<Item = (Epsilon<&S>, &usize)> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]   --> src/dfa.rs:50:128
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub fn minimize_from_nfa(&self, mut powerset_to_state: HashMap<Vec<usize>, usize>, is_terminal: impl Fn(usize) -> bool) -> (DFA<S>, HashMap<usize, Vec<usize>>, HashMap<usize, Vec<usize>>) {
[INFO] [stderr]    |                                                                                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::type_complexity)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[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/parse.rs:160:13
[INFO] [stderr]     |
[INFO] [stderr] 160 |     if x >= '0' as u8 && x <= '9' 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'0'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:160:31
[INFO] [stderr]     |
[INFO] [stderr] 160 |     if x >= '0' as u8 && x <= '9' as u8 {
[INFO] [stderr]     |                               ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'9'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:161:16
[INFO] [stderr]     |
[INFO] [stderr] 161 |         Ok(x - '0' as u8)
[INFO] [stderr]     |                ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'0'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:162:20
[INFO] [stderr]     |
[INFO] [stderr] 162 |     } else if x >= 'A' as u8 && x <= 'F' as u8 {
[INFO] [stderr]     |                    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'A'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:162:38
[INFO] [stderr]     |
[INFO] [stderr] 162 |     } else if x >= 'A' as u8 && x <= 'F' as u8 {
[INFO] [stderr]     |                                      ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'F'
[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: length comparison to zero
[INFO] [stderr]    --> src/dfa.rs:109:20
[INFO] [stderr]     |
[INFO] [stderr] 109 |                 if different.len() > 0 {
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!different.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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:163:16
[INFO] [stderr]     |
[INFO] [stderr] 163 |         Ok(x - 'A' as u8)
[INFO] [stderr]     |                ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'A'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:164:20
[INFO] [stderr]     |
[INFO] [stderr] 164 |     } else if x >= 'a' as u8 && x <= 'f' as u8 {
[INFO] [stderr]     |                    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'a'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:164:38
[INFO] [stderr]     |
[INFO] [stderr] 164 |     } else if x >= 'a' as u8 && x <= 'f' as u8 {
[INFO] [stderr]     |                                      ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'f'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:165:16
[INFO] [stderr]     |
[INFO] [stderr] 165 |         Ok(x - 'a' as u8)
[INFO] [stderr]     |                ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'a'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:173:13
[INFO] [stderr]     |
[INFO] [stderr] 173 |     if x >= 'A' as u8 && x <= 'Z' as u8 {
[INFO] [stderr]     |             ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'A'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:173:31
[INFO] [stderr]     |
[INFO] [stderr] 173 |     if x >= 'A' as u8 && x <= 'Z' as u8 {
[INFO] [stderr]     |                               ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'Z'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:174:16
[INFO] [stderr]     |
[INFO] [stderr] 174 |         Ok(x - 'A' as u8)
[INFO] [stderr]     |                ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'A'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:175:20
[INFO] [stderr]     |
[INFO] [stderr] 175 |     } else if x >= 'a' as u8 && x <= 'z' as u8 {
[INFO] [stderr]     |                    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'a'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:175:38
[INFO] [stderr]     |
[INFO] [stderr] 175 |     } else if x >= 'a' as u8 && x <= 'z' as u8 {
[INFO] [stderr]     |                                      ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'z'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:176:16
[INFO] [stderr]     |
[INFO] [stderr] 176 |         Ok(x - 'a' as u8)
[INFO] [stderr]     |                ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'a'
[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: you seem to want to iterate on a map's values
[INFO] [stderr]   --> src/lexer.rs:60:27
[INFO] [stderr]    |
[INFO] [stderr] 60 |         for (_, token) in &self.state_to_token {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::for_kv_map)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#for_kv_map
[INFO] [stderr] help: use the corresponding method
[INFO] [stderr]    |
[INFO] [stderr] 60 |         for token in self.state_to_token.values() {
[INFO] [stderr]    |             ^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]    --> src/nfa.rs:104:47
[INFO] [stderr]     |
[INFO] [stderr] 104 |                     transitions.entry(symbol).or_insert(HashSet::new()).insert(to);
[INFO] [stderr]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(HashSet::new)`
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:160:13
[INFO] [stderr]     |
[INFO] [stderr] 160 |     if x >= '0' as u8 && x <= '9' 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'0'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:160:31
[INFO] [stderr]     |
[INFO] [stderr] 160 |     if x >= '0' as u8 && x <= '9' as u8 {
[INFO] [stderr]     |                               ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'9'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:161:16
[INFO] [stderr]     |
[INFO] [stderr] 161 |         Ok(x - '0' as u8)
[INFO] [stderr]     |                ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'0'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:162:20
[INFO] [stderr]     |
[INFO] [stderr] 162 |     } else if x >= 'A' as u8 && x <= 'F' as u8 {
[INFO] [stderr]     |                    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'A'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:162:38
[INFO] [stderr]     |
[INFO] [stderr] 162 |     } else if x >= 'A' as u8 && x <= 'F' as u8 {
[INFO] [stderr]     |                                      ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'F'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:163:16
[INFO] [stderr]     |
[INFO] [stderr] 163 |         Ok(x - 'A' as u8)
[INFO] [stderr]     |                ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'A'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:164:20
[INFO] [stderr]     |
[INFO] [stderr] 164 |     } else if x >= 'a' as u8 && x <= 'f' as u8 {
[INFO] [stderr]     |                    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'a'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:164:38
[INFO] [stderr]     |
[INFO] [stderr] 164 |     } else if x >= 'a' as u8 && x <= 'f' as u8 {
[INFO] [stderr]     |                                      ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'f'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:165:16
[INFO] [stderr]     |
[INFO] [stderr] 165 |         Ok(x - 'a' as u8)
[INFO] [stderr]     |                ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'a'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:173:13
[INFO] [stderr]     |
[INFO] [stderr] 173 |     if x >= 'A' as u8 && x <= 'Z' as u8 {
[INFO] [stderr]     |             ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'A'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:173:31
[INFO] [stderr]     |
[INFO] [stderr] 173 |     if x >= 'A' as u8 && x <= 'Z' as u8 {
[INFO] [stderr]     |                               ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'Z'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:174:16
[INFO] [stderr]     |
[INFO] [stderr] 174 |         Ok(x - 'A' as u8)
[INFO] [stderr]     |                ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'A'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:175:20
[INFO] [stderr]     |
[INFO] [stderr] 175 |     } else if x >= 'a' as u8 && x <= 'z' as u8 {
[INFO] [stderr]     |                    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'a'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:175:38
[INFO] [stderr]     |
[INFO] [stderr] 175 |     } else if x >= 'a' as u8 && x <= 'z' as u8 {
[INFO] [stderr]     |                                      ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'z'
[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: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/parse.rs:176:16
[INFO] [stderr]     |
[INFO] [stderr] 176 |         Ok(x - 'a' as u8)
[INFO] [stderr]     |                ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'a'
[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 1.13s
[INFO] running `"docker" "inspect" "08131f5338936cf7dc7aaa30161ed46940aa710690a0e639b4028da40cc6a62a"`
[INFO] running `"docker" "rm" "-f" "08131f5338936cf7dc7aaa30161ed46940aa710690a0e639b4028da40cc6a62a"`
[INFO] [stdout] 08131f5338936cf7dc7aaa30161ed46940aa710690a0e639b4028da40cc6a62a