[INFO] crate chinese-numbers 1.0.4 is already in cache
[INFO] extracting crate chinese-numbers 1.0.4 into work/ex/clippy-test-run/sources/stable/reg/chinese-numbers/1.0.4
[INFO] extracting crate chinese-numbers 1.0.4 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/chinese-numbers/1.0.4
[INFO] validating manifest of chinese-numbers-1.0.4 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 chinese-numbers-1.0.4 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 chinese-numbers-1.0.4
[INFO] finished frobbing chinese-numbers-1.0.4
[INFO] frobbed toml for chinese-numbers-1.0.4 written to work/ex/clippy-test-run/sources/stable/reg/chinese-numbers/1.0.4/Cargo.toml
[INFO] started frobbing chinese-numbers-1.0.4
[INFO] finished frobbing chinese-numbers-1.0.4
[INFO] frobbed toml for chinese-numbers-1.0.4 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/chinese-numbers/1.0.4/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 chinese-numbers-1.0.4 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-3/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/reg/chinese-numbers/1.0.4:/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] a95b9b9d35b666d5b05b5768dceec15344d3f7410f71250e68a867490024ef1d
[INFO] running `"docker" "start" "-a" "a95b9b9d35b666d5b05b5768dceec15344d3f7410f71250e68a867490024ef1d"`
[INFO] [stderr]     Checking chinese-numbers v1.0.4 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |         return ZeroFlag { flag: None };
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `ZeroFlag { flag: 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/lib.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 | /         return match self.flag {
[INFO] [stderr] 15 | |             Some(f) => f,
[INFO] [stderr] 16 | |             None => false,
[INFO] [stderr] 17 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 14 |         match self.flag {
[INFO] [stderr] 15 |             Some(f) => f,
[INFO] [stderr] 16 |             None => false,
[INFO] [stderr] 17 |         }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 | /     return match n {
[INFO] [stderr] 35 | |         1 => "一",
[INFO] [stderr] 36 | |         2 => "二",
[INFO] [stderr] 37 | |         3 => "三",
[INFO] [stderr] ...  |
[INFO] [stderr] 44 | |         _ => "",
[INFO] [stderr] 45 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 34 |     match n {
[INFO] [stderr] 35 |         1 => "一",
[INFO] [stderr] 36 |         2 => "二",
[INFO] [stderr] 37 |         3 => "三",
[INFO] [stderr] 38 |         4 => "四",
[INFO] [stderr] 39 |         5 => "五",
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     return max_index;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `max_index`
[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/lib.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |         return ZeroFlag { flag: None };
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `ZeroFlag { flag: 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/lib.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 | /         return match self.flag {
[INFO] [stderr] 15 | |             Some(f) => f,
[INFO] [stderr] 16 | |             None => false,
[INFO] [stderr] 17 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 14 |         match self.flag {
[INFO] [stderr] 15 |             Some(f) => f,
[INFO] [stderr] 16 |             None => false,
[INFO] [stderr] 17 |         }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 | /     return match n {
[INFO] [stderr] 35 | |         1 => "一",
[INFO] [stderr] 36 | |         2 => "二",
[INFO] [stderr] 37 | |         3 => "三",
[INFO] [stderr] ...  |
[INFO] [stderr] 44 | |         _ => "",
[INFO] [stderr] 45 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 34 |     match n {
[INFO] [stderr] 35 |         1 => "一",
[INFO] [stderr] 36 |         2 => "二",
[INFO] [stderr] 37 |         3 => "三",
[INFO] [stderr] 38 |         4 => "四",
[INFO] [stderr] 39 |         5 => "五",
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     return max_index;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `max_index`
[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: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:159:39
[INFO] [stderr]     |
[INFO] [stderr] 159 |         assert_eq!(get_max_unit_index(100000), 1);
[INFO] [stderr]     |                                       ^^^^^^ help: consider: `100_000`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:160:39
[INFO] [stderr]     |
[INFO] [stderr] 160 |         assert_eq!(get_max_unit_index(1000000), 1);
[INFO] [stderr]     |                                       ^^^^^^^ help: consider: `1_000_000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:161:39
[INFO] [stderr]     |
[INFO] [stderr] 161 |         assert_eq!(get_max_unit_index(10000000), 1);
[INFO] [stderr]     |                                       ^^^^^^^^ help: consider: `10_000_000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:162:39
[INFO] [stderr]     |
[INFO] [stderr] 162 |         assert_eq!(get_max_unit_index(100000000), 2);
[INFO] [stderr]     |                                       ^^^^^^^^^ help: consider: `100_000_000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:163:39
[INFO] [stderr]     |
[INFO] [stderr] 163 |         assert_eq!(get_max_unit_index(1000000000), 2);
[INFO] [stderr]     |                                       ^^^^^^^^^^ help: consider: `1_000_000_000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:164:39
[INFO] [stderr]     |
[INFO] [stderr] 164 |         assert_eq!(get_max_unit_index(10000000000), 2);
[INFO] [stderr]     |                                       ^^^^^^^^^^^ help: consider: `10_000_000_000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:165:39
[INFO] [stderr]     |
[INFO] [stderr] 165 |         assert_eq!(get_max_unit_index(100000000000), 2);
[INFO] [stderr]     |                                       ^^^^^^^^^^^^ help: consider: `100_000_000_000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:166:39
[INFO] [stderr]     |
[INFO] [stderr] 166 |         assert_eq!(get_max_unit_index(1000000000000), 3);
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^ help: consider: `1_000_000_000_000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:167:39
[INFO] [stderr]     |
[INFO] [stderr] 167 |         assert_eq!(get_max_unit_index(10000000000000), 3);
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^ help: consider: `10_000_000_000_000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:168:39
[INFO] [stderr]     |
[INFO] [stderr] 168 |         assert_eq!(get_max_unit_index(100000000000000), 3);
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^ help: consider: `100_000_000_000_000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:169:39
[INFO] [stderr]     |
[INFO] [stderr] 169 |         assert_eq!(get_max_unit_index(1000000000000000), 3);
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^ help: consider: `1_000_000_000_000_000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:170:39
[INFO] [stderr]     |
[INFO] [stderr] 170 |         assert_eq!(get_max_unit_index(10000000000000000), 4);
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^ help: consider: `10_000_000_000_000_000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:171:39
[INFO] [stderr]     |
[INFO] [stderr] 171 |         assert_eq!(get_max_unit_index(100000000000000000), 4);
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^ help: consider: `100_000_000_000_000_000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:172:39
[INFO] [stderr]     |
[INFO] [stderr] 172 |         assert_eq!(get_max_unit_index(1000000000000000000), 4);
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^ help: consider: `1_000_000_000_000_000_000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:173:39
[INFO] [stderr]     |
[INFO] [stderr] 173 |         assert_eq!(get_max_unit_index(9223372036854775807), 4);
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^ help: consider: `9_223_372_036_854_775_807`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:185:36
[INFO] [stderr]     |
[INFO] [stderr] 185 |         assert_eq!(convert_all_fmt(200000), "二十万");
[INFO] [stderr]     |                                    ^^^^^^ help: consider: `200_000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:186:36
[INFO] [stderr]     |
[INFO] [stderr] 186 |         assert_eq!(convert_all_fmt(20000000), "二千万");
[INFO] [stderr]     |                                    ^^^^^^^^ help: consider: `20_000_000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:187:36
[INFO] [stderr]     |
[INFO] [stderr] 187 |         assert_eq!(convert_all_fmt(200000000), "二亿");
[INFO] [stderr]     |                                    ^^^^^^^^^ help: consider: `200_000_000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:188:36
[INFO] [stderr]     |
[INFO] [stderr] 188 |         assert_eq!(convert_all_fmt(2000000000), "二十亿");
[INFO] [stderr]     |                                    ^^^^^^^^^^ help: consider: `2_000_000_000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:194:36
[INFO] [stderr]     |
[INFO] [stderr] 194 |         assert_eq!(convert_all_fmt(100450), "十万零四百五十");
[INFO] [stderr]     |                                    ^^^^^^ help: consider: `100_450`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:195:36
[INFO] [stderr]     |
[INFO] [stderr] 195 |         assert_eq!(convert_all_fmt(9223372036854775807), "九百二十二京三千三百七十二兆零三百六十八亿五千四百七十七万五千八百零七");
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^ help: consider: `9_223_372_036_854_775_807`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:210:37
[INFO] [stderr]     |
[INFO] [stderr] 210 |         assert_eq!(convert_all_fmt(-100450), "负十万零四百五十");
[INFO] [stderr]     |                                     ^^^^^^ help: consider: `100_450`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:211:37
[INFO] [stderr]     |
[INFO] [stderr] 211 |         assert_eq!(convert_all_fmt(-9223372036854775807), "负九百二十二京三千三百七十二兆零三百六十八亿五千四百七十七万五千八百零七");
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^ help: consider: `9_223_372_036_854_775_807`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[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/lib.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 | /         match self.flag {
[INFO] [stderr] 24 | |             Some(_) => {
[INFO] [stderr] 25 | |                 self.flag = Some(true)
[INFO] [stderr] 26 | |             },
[INFO] [stderr] 27 | |             None => {},
[INFO] [stderr] 28 | |         }
[INFO] [stderr]    | |_________^
[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] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 23 |         if let Some(_) = self.flag {
[INFO] [stderr] 24 |     self.flag = Some(true)
[INFO] [stderr] 25 | }
[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/lib.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 | /         match self.flag {
[INFO] [stderr] 24 | |             Some(_) => {
[INFO] [stderr] 25 | |                 self.flag = Some(true)
[INFO] [stderr] 26 | |             },
[INFO] [stderr] 27 | |             None => {},
[INFO] [stderr] 28 | |         }
[INFO] [stderr]    | |_________^
[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] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 23 |         if let Some(_) = self.flag {
[INFO] [stderr] 24 |     self.flag = Some(true)
[INFO] [stderr] 25 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 58
[INFO] [stderr]    --> src/lib.rs:152:5
[INFO] [stderr]     |
[INFO] [stderr] 152 | /     fn it_works() {
[INFO] [stderr] 153 | |         assert_eq!(get_max_unit_index(0), 0);
[INFO] [stderr] 154 | |         assert_eq!(get_max_unit_index(1), 0);
[INFO] [stderr] 155 | |         assert_eq!(get_max_unit_index(10), 0);
[INFO] [stderr] ...   |
[INFO] [stderr] 211 | |         assert_eq!(convert_all_fmt(-9223372036854775807), "负九百二十二京三千三百七十二兆零三百六十八亿五千四百七十七万五千八百零七");
[INFO] [stderr] 212 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cyclomatic_complexity)] on by default
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `"docker" "inspect" "a95b9b9d35b666d5b05b5768dceec15344d3f7410f71250e68a867490024ef1d"`
[INFO] running `"docker" "rm" "-f" "a95b9b9d35b666d5b05b5768dceec15344d3f7410f71250e68a867490024ef1d"`
[INFO] [stdout] a95b9b9d35b666d5b05b5768dceec15344d3f7410f71250e68a867490024ef1d