[INFO] cloning repository https://github.com/andribergs/tinyserde
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andribergs/tinyserde" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandribergs%2Ftinyserde", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandribergs%2Ftinyserde'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b5540b530892ae08d172ee88106a53f23aa49d40
[INFO] linting andribergs/tinyserde against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandribergs%2Ftinyserde" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/andribergs/tinyserde
[INFO] finished tweaking git repo https://github.com/andribergs/tinyserde
[INFO] tweaked toml for git repo https://github.com/andribergs/tinyserde written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/andribergs/tinyserde on toolchain nightly
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/andribergs/tinyserde already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 276d7ca9b58d1910b454f503d3350e402272af26140494545313a1ee3b68fcfd
[INFO] running `Command { std: "docker" "start" "-a" "276d7ca9b58d1910b454f503d3350e402272af26140494545313a1ee3b68fcfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "276d7ca9b58d1910b454f503d3350e402272af26140494545313a1ee3b68fcfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "276d7ca9b58d1910b454f503d3350e402272af26140494545313a1ee3b68fcfd", kill_on_drop: false }`
[INFO] [stdout] 276d7ca9b58d1910b454f503d3350e402272af26140494545313a1ee3b68fcfd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9ccc26c4f05a26bf3b7f79ebd48eabf5fa160025447ce81bf704c54c3dfdac0
[INFO] running `Command { std: "docker" "start" "-a" "e9ccc26c4f05a26bf3b7f79ebd48eabf5fa160025447ce81bf704c54c3dfdac0", kill_on_drop: false }`
[INFO] [stderr]     Checking tinyserde v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `clone` on type `bool` which implements the `Copy` trait
[INFO] [stdout]   --> src/parser.rs:23:53
[INFO] [stdout]    |
[INFO] [stdout] 23 |             JsonValue::Bool(val) => JsonValue::Bool(val.clone()),
[INFO] [stdout]    |                                                     ^^^^^^^^^^^ help: try dereferencing it: `*val`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout]    = note: `#[warn(clippy::clone_on_copy)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `i64` which implements the `Copy` trait
[INFO] [stdout]   --> src/parser.rs:24:57
[INFO] [stdout]    |
[INFO] [stdout] 24 |             JsonValue::Number(val) => JsonValue::Number(val.clone()),
[INFO] [stdout]    |                                                         ^^^^^^^^^^^ help: try dereferencing it: `*val`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/parser.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | /     return match c {
[INFO] [stdout] 50 | |         '\t' => true,
[INFO] [stdout] 51 | |         '\n' => true,
[INFO] [stdout] 52 | |         '\r' => true,
[INFO] [stdout] 53 | |         ' ' => true,
[INFO] [stdout] 54 | |         _ => false,
[INFO] [stdout] 55 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 49 ~     match c {
[INFO] [stdout] 50 +         '\t' => true,
[INFO] [stdout] 51 +         '\n' => true,
[INFO] [stdout] 52 +         '\r' => true,
[INFO] [stdout] 53 +         ' ' => true,
[INFO] [stdout] 54 +         _ => false,
[INFO] [stdout] 55 +     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]   --> src/parser.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |       return match c {
[INFO] [stdout]    |  ____________^
[INFO] [stdout] 50 | |         '\t' => true,
[INFO] [stdout] 51 | |         '\n' => true,
[INFO] [stdout] 52 | |         '\r' => true,
[INFO] [stdout] 53 | |         ' ' => true,
[INFO] [stdout] 54 | |         _ => false,
[INFO] [stdout] 55 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout]    = note: `#[warn(clippy::match_like_matches_macro)]` on by default
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]    |
[INFO] [stdout] 49 -     return match c {
[INFO] [stdout] 50 -         '\t' => true,
[INFO] [stdout] 51 -         '\n' => true,
[INFO] [stdout] 52 -         '\r' => true,
[INFO] [stdout] 53 -         ' ' => true,
[INFO] [stdout] 54 -         _ => false,
[INFO] [stdout] 55 -     }
[INFO] [stdout] 49 +     return matches!(c, '\t' | '\n' | '\r' | ' ')
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/parser.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | /     return match c {
[INFO] [stdout] 60 | |         '}' => true,
[INFO] [stdout] 61 | |         ']' => true,
[INFO] [stdout] 62 | |         ':' => true,
[INFO] [stdout] 63 | |         ',' => true,
[INFO] [stdout] 64 | |         _ => false,
[INFO] [stdout] 65 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 59 ~     match c {
[INFO] [stdout] 60 +         '}' => true,
[INFO] [stdout] 61 +         ']' => true,
[INFO] [stdout] 62 +         ':' => true,
[INFO] [stdout] 63 +         ',' => true,
[INFO] [stdout] 64 +         _ => false,
[INFO] [stdout] 65 +     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]   --> src/parser.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |       return match c {
[INFO] [stdout]    |  ____________^
[INFO] [stdout] 60 | |         '}' => true,
[INFO] [stdout] 61 | |         ']' => true,
[INFO] [stdout] 62 | |         ':' => true,
[INFO] [stdout] 63 | |         ',' => true,
[INFO] [stdout] 64 | |         _ => false,
[INFO] [stdout] 65 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]    |
[INFO] [stdout] 59 -     return match c {
[INFO] [stdout] 60 -         '}' => true,
[INFO] [stdout] 61 -         ']' => true,
[INFO] [stdout] 62 -         ':' => true,
[INFO] [stdout] 63 -         ',' => true,
[INFO] [stdout] 64 -         _ => false,
[INFO] [stdout] 65 -     }
[INFO] [stdout] 59 +     return matches!(c, '}' | ']' | ':' | ',')
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/parser.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 | /     return match c {
[INFO] [stdout] 70 | |         '-' => true,
[INFO] [stdout] 71 | |         '0' => true,
[INFO] [stdout] 72 | |         '1' => true,
[INFO] [stdout] ...  |
[INFO] [stdout] 81 | |         _ => false,
[INFO] [stdout] 82 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 69 ~     match c {
[INFO] [stdout] 70 +         '-' => true,
[INFO] [stdout] 71 +         '0' => true,
[INFO] [stdout] 72 +         '1' => true,
[INFO] [stdout] 73 +         '2' => true,
[INFO] [stdout] 74 +         '3' => true,
[INFO] [stdout] 75 +         '4' => true,
[INFO] [stdout] 76 +         '5' => true,
[INFO] [stdout] 77 +         '6' => true,
[INFO] [stdout] 78 +         '7' => true,
[INFO] [stdout] 79 +         '8' => true,
[INFO] [stdout] 80 +         '9' => true,
[INFO] [stdout] 81 +         _ => false,
[INFO] [stdout] 82 +     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]   --> src/parser.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |       return match c {
[INFO] [stdout]    |  ____________^
[INFO] [stdout] 70 | |         '-' => true,
[INFO] [stdout] 71 | |         '0' => true,
[INFO] [stdout] 72 | |         '1' => true,
[INFO] [stdout] ...  |
[INFO] [stdout] 81 | |         _ => false,
[INFO] [stdout] 82 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]    |
[INFO] [stdout] 69 -     return match c {
[INFO] [stdout] 70 -         '-' => true,
[INFO] [stdout] 71 -         '0' => true,
[INFO] [stdout] 72 -         '1' => true,
[INFO] [stdout] 73 -         '2' => true,
[INFO] [stdout] 74 -         '3' => true,
[INFO] [stdout] 75 -         '4' => true,
[INFO] [stdout] 76 -         '5' => true,
[INFO] [stdout] 77 -         '6' => true,
[INFO] [stdout] 78 -         '7' => true,
[INFO] [stdout] 79 -         '8' => true,
[INFO] [stdout] 80 -         '9' => true,
[INFO] [stdout] 81 -         _ => false,
[INFO] [stdout] 82 -     }
[INFO] [stdout] 69 +     return matches!(c, '-' | '0' | '1' | '2' | '3' | '4' | '5' | '6' | '7' | '8' | '9')
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `usize` which implements the `Copy` trait
[INFO] [stdout]    --> src/parser.rs:111:73
[INFO] [stdout]     |
[INFO] [stdout] 111 |             return Err(ParserError::ParseError("Could not parse JSON.", self.cursor.clone()))
[INFO] [stdout]     |                                                                         ^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.cursor`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/parser.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         return self.cursor >= self.input.chars().count();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 117 -         return self.cursor >= self.input.chars().count();
[INFO] [stdout] 117 +         self.cursor >= self.input.chars().count()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `usize` which implements the `Copy` trait
[INFO] [stdout]    --> src/parser.rs:134:31
[INFO] [stdout]     |
[INFO] [stdout] 134 |         let mut temp_cursor = self.cursor.clone();
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.cursor`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/parser.rs:192:9
[INFO] [stdout]     |
[INFO] [stdout] 192 | /         return match type_to_parse {
[INFO] [stdout] 193 | |             ParseType::Object => self.parse_object(),
[INFO] [stdout] 194 | |             ParseType::Number => self.parse_number(),
[INFO] [stdout] 195 | |             ParseType::String => self.parse_string(),
[INFO] [stdout] ...   |
[INFO] [stdout] 199 | |             _ => Err(ParserError::ParseError("parse_helper failed", self.cursor)),
[INFO] [stdout] 200 | |         };
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 192 ~         match type_to_parse {
[INFO] [stdout] 193 +             ParseType::Object => self.parse_object(),
[INFO] [stdout] 194 +             ParseType::Number => self.parse_number(),
[INFO] [stdout] 195 +             ParseType::String => self.parse_string(),
[INFO] [stdout] 196 +             ParseType::Boolean => self.parse_bool(),
[INFO] [stdout] 197 +             ParseType::Null => self.parse_null(),
[INFO] [stdout] 198 +             ParseType::Array => self.parse_array(),
[INFO] [stdout] 199 +             _ => Err(ParserError::ParseError("parse_helper failed", self.cursor)),
[INFO] [stdout] 200 ~         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/parser.rs:256:47
[INFO] [stdout]     |
[INFO] [stdout] 256 |             if !self.consume_specific(',') && !(self.peek() == ']') {
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^^ help: try: `(self.peek() != ']')`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]     = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this assertion is always `false`
[INFO] [stdout]    --> src/parser.rs:319:19
[INFO] [stdout]     |
[INFO] [stdout] 319 |         Err(_) => assert!(false),
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: replace this with `panic!()` or `unreachable!()`
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assertions_on_constants
[INFO] [stdout]     = note: `#[warn(clippy::assertions_on_constants)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `bool` which implements the `Copy` trait
[INFO] [stdout]   --> src/parser.rs:23:53
[INFO] [stdout]    |
[INFO] [stdout] 23 |             JsonValue::Bool(val) => JsonValue::Bool(val.clone()),
[INFO] [stdout]    |                                                     ^^^^^^^^^^^ help: try dereferencing it: `*val`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout]    = note: `#[warn(clippy::clone_on_copy)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `i64` which implements the `Copy` trait
[INFO] [stdout]   --> src/parser.rs:24:57
[INFO] [stdout]    |
[INFO] [stdout] 24 |             JsonValue::Number(val) => JsonValue::Number(val.clone()),
[INFO] [stdout]    |                                                         ^^^^^^^^^^^ help: try dereferencing it: `*val`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this assertion is always `false`
[INFO] [stdout]    --> src/parser.rs:333:19
[INFO] [stdout]     |
[INFO] [stdout] 333 |         Err(_) => assert!(false),
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: replace this with `panic!()` or `unreachable!()`
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assertions_on_constants
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this assertion is always `false`
[INFO] [stdout]    --> src/parser.rs:347:19
[INFO] [stdout]     |
[INFO] [stdout] 347 |         Err(_) => assert!(false),
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: replace this with `panic!()` or `unreachable!()`
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assertions_on_constants
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/parser.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | /     return match c {
[INFO] [stdout] 50 | |         '\t' => true,
[INFO] [stdout] 51 | |         '\n' => true,
[INFO] [stdout] 52 | |         '\r' => true,
[INFO] [stdout] 53 | |         ' ' => true,
[INFO] [stdout] 54 | |         _ => false,
[INFO] [stdout] 55 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 49 ~     match c {
[INFO] [stdout] 50 +         '\t' => true,
[INFO] [stdout] 51 +         '\n' => true,
[INFO] [stdout] 52 +         '\r' => true,
[INFO] [stdout] 53 +         ' ' => true,
[INFO] [stdout] 54 +         _ => false,
[INFO] [stdout] 55 +     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]   --> src/parser.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |       return match c {
[INFO] [stdout]    |  ____________^
[INFO] [stdout] 50 | |         '\t' => true,
[INFO] [stdout] 51 | |         '\n' => true,
[INFO] [stdout] 52 | |         '\r' => true,
[INFO] [stdout] 53 | |         ' ' => true,
[INFO] [stdout] 54 | |         _ => false,
[INFO] [stdout] 55 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout]    = note: `#[warn(clippy::match_like_matches_macro)]` on by default
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]    |
[INFO] [stdout] 49 -     return match c {
[INFO] [stdout] 50 -         '\t' => true,
[INFO] [stdout] 51 -         '\n' => true,
[INFO] [stdout] 52 -         '\r' => true,
[INFO] [stdout] 53 -         ' ' => true,
[INFO] [stdout] 54 -         _ => false,
[INFO] [stdout] 55 -     }
[INFO] [stdout] 49 +     return matches!(c, '\t' | '\n' | '\r' | ' ')
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/parser.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | /     return match c {
[INFO] [stdout] 60 | |         '}' => true,
[INFO] [stdout] 61 | |         ']' => true,
[INFO] [stdout] 62 | |         ':' => true,
[INFO] [stdout] 63 | |         ',' => true,
[INFO] [stdout] 64 | |         _ => false,
[INFO] [stdout] 65 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 59 ~     match c {
[INFO] [stdout] 60 +         '}' => true,
[INFO] [stdout] 61 +         ']' => true,
[INFO] [stdout] 62 +         ':' => true,
[INFO] [stdout] 63 +         ',' => true,
[INFO] [stdout] 64 +         _ => false,
[INFO] [stdout] 65 +     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]   --> src/parser.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |       return match c {
[INFO] [stdout]    |  ____________^
[INFO] [stdout] 60 | |         '}' => true,
[INFO] [stdout] 61 | |         ']' => true,
[INFO] [stdout] 62 | |         ':' => true,
[INFO] [stdout] 63 | |         ',' => true,
[INFO] [stdout] 64 | |         _ => false,
[INFO] [stdout] 65 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]    |
[INFO] [stdout] 59 -     return match c {
[INFO] [stdout] 60 -         '}' => true,
[INFO] [stdout] 61 -         ']' => true,
[INFO] [stdout] 62 -         ':' => true,
[INFO] [stdout] 63 -         ',' => true,
[INFO] [stdout] 64 -         _ => false,
[INFO] [stdout] 65 -     }
[INFO] [stdout] 59 +     return matches!(c, '}' | ']' | ':' | ',')
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this assertion is always `false`
[INFO] [stdout]    --> src/parser.rs:361:19
[INFO] [stdout]     |
[INFO] [stdout] 361 |         Err(_) => assert!(false),
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: replace this with `panic!()` or `unreachable!()`
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assertions_on_constants
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/parser.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 | /     return match c {
[INFO] [stdout] 70 | |         '-' => true,
[INFO] [stdout] 71 | |         '0' => true,
[INFO] [stdout] 72 | |         '1' => true,
[INFO] [stdout] ...  |
[INFO] [stdout] 81 | |         _ => false,
[INFO] [stdout] 82 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 69 ~     match c {
[INFO] [stdout] 70 +         '-' => true,
[INFO] [stdout] 71 +         '0' => true,
[INFO] [stdout] 72 +         '1' => true,
[INFO] [stdout] 73 +         '2' => true,
[INFO] [stdout] 74 +         '3' => true,
[INFO] [stdout] 75 +         '4' => true,
[INFO] [stdout] 76 +         '5' => true,
[INFO] [stdout] 77 +         '6' => true,
[INFO] [stdout] 78 +         '7' => true,
[INFO] [stdout] 79 +         '8' => true,
[INFO] [stdout] 80 +         '9' => true,
[INFO] [stdout] 81 +         _ => false,
[INFO] [stdout] 82 +     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]   --> src/parser.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |       return match c {
[INFO] [stdout]    |  ____________^
[INFO] [stdout] 70 | |         '-' => true,
[INFO] [stdout] 71 | |         '0' => true,
[INFO] [stdout] 72 | |         '1' => true,
[INFO] [stdout] ...  |
[INFO] [stdout] 81 | |         _ => false,
[INFO] [stdout] 82 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]    |
[INFO] [stdout] 69 -     return match c {
[INFO] [stdout] 70 -         '-' => true,
[INFO] [stdout] 71 -         '0' => true,
[INFO] [stdout] 72 -         '1' => true,
[INFO] [stdout] 73 -         '2' => true,
[INFO] [stdout] 74 -         '3' => true,
[INFO] [stdout] 75 -         '4' => true,
[INFO] [stdout] 76 -         '5' => true,
[INFO] [stdout] 77 -         '6' => true,
[INFO] [stdout] 78 -         '7' => true,
[INFO] [stdout] 79 -         '8' => true,
[INFO] [stdout] 80 -         '9' => true,
[INFO] [stdout] 81 -         _ => false,
[INFO] [stdout] 82 -     }
[INFO] [stdout] 69 +     return matches!(c, '-' | '0' | '1' | '2' | '3' | '4' | '5' | '6' | '7' | '8' | '9')
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this assertion is always `false`
[INFO] [stdout]    --> src/parser.rs:399:19
[INFO] [stdout]     |
[INFO] [stdout] 399 |         Err(_) => assert!(false),
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: replace this with `panic!()` or `unreachable!()`
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assertions_on_constants
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `usize` which implements the `Copy` trait
[INFO] [stdout]    --> src/parser.rs:111:73
[INFO] [stdout]     |
[INFO] [stdout] 111 |             return Err(ParserError::ParseError("Could not parse JSON.", self.cursor.clone()))
[INFO] [stdout]     |                                                                         ^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.cursor`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/parser.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         return self.cursor >= self.input.chars().count();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 117 -         return self.cursor >= self.input.chars().count();
[INFO] [stdout] 117 +         self.cursor >= self.input.chars().count()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this assertion is always `false`
[INFO] [stdout]    --> src/parser.rs:413:19
[INFO] [stdout]     |
[INFO] [stdout] 413 |         Err(_) => assert!(false),
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: replace this with `panic!()` or `unreachable!()`
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assertions_on_constants
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `usize` which implements the `Copy` trait
[INFO] [stdout]    --> src/parser.rs:134:31
[INFO] [stdout]     |
[INFO] [stdout] 134 |         let mut temp_cursor = self.cursor.clone();
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.cursor`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/deserializer.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | /         return match value {
[INFO] [stdout] 16 | |             JsonValue::String(value) => value,
[INFO] [stdout] 17 | |             JsonValue::Object(map) => self.deserialize_object(map),
[INFO] [stdout] 18 | |             JsonValue::Array(array) => self.deserialize_array(array),
[INFO] [stdout] 19 | |             _ => "".to_string(),
[INFO] [stdout] 20 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 15 ~         match value {
[INFO] [stdout] 16 +             JsonValue::String(value) => value,
[INFO] [stdout] 17 +             JsonValue::Object(map) => self.deserialize_object(map),
[INFO] [stdout] 18 +             JsonValue::Array(array) => self.deserialize_array(array),
[INFO] [stdout] 19 +             _ => "".to_string(),
[INFO] [stdout] 20 +         }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/parser.rs:192:9
[INFO] [stdout]     |
[INFO] [stdout] 192 | /         return match type_to_parse {
[INFO] [stdout] 193 | |             ParseType::Object => self.parse_object(),
[INFO] [stdout] 194 | |             ParseType::Number => self.parse_number(),
[INFO] [stdout] 195 | |             ParseType::String => self.parse_string(),
[INFO] [stdout] ...   |
[INFO] [stdout] 199 | |             _ => Err(ParserError::ParseError("parse_helper failed", self.cursor)),
[INFO] [stdout] 200 | |         };
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 192 ~         match type_to_parse {
[INFO] [stdout] 193 +             ParseType::Object => self.parse_object(),
[INFO] [stdout] 194 +             ParseType::Number => self.parse_number(),
[INFO] [stdout] 195 +             ParseType::String => self.parse_string(),
[INFO] [stdout] 196 +             ParseType::Boolean => self.parse_bool(),
[INFO] [stdout] 197 +             ParseType::Null => self.parse_null(),
[INFO] [stdout] 198 +             ParseType::Array => self.parse_array(),
[INFO] [stdout] 199 +             _ => Err(ParserError::ParseError("parse_helper failed", self.cursor)),
[INFO] [stdout] 200 ~         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/parser.rs:256:47
[INFO] [stdout]     |
[INFO] [stdout] 256 |             if !self.consume_specific(',') && !(self.peek() == ']') {
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^^ help: try: `(self.peek() != ']')`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]     = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/deserializer.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | /         return match value {
[INFO] [stdout] 16 | |             JsonValue::String(value) => value,
[INFO] [stdout] 17 | |             JsonValue::Object(map) => self.deserialize_object(map),
[INFO] [stdout] 18 | |             JsonValue::Array(array) => self.deserialize_array(array),
[INFO] [stdout] 19 | |             _ => "".to_string(),
[INFO] [stdout] 20 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 15 ~         match value {
[INFO] [stdout] 16 +             JsonValue::String(value) => value,
[INFO] [stdout] 17 +             JsonValue::Object(map) => self.deserialize_object(map),
[INFO] [stdout] 18 +             JsonValue::Array(array) => self.deserialize_array(array),
[INFO] [stdout] 19 +             _ => "".to_string(),
[INFO] [stdout] 20 +         }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded unit return type
[INFO] [stdout]   --> src/main.rs:24:28
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn combine_json(path: &str) -> () {
[INFO] [stdout]    |                            ^^^^^^ help: remove the `-> ()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stdout]    = note: `#[warn(clippy::unused_unit)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded unit return type
[INFO] [stdout]   --> src/main.rs:24:28
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn combine_json(path: &str) -> () {
[INFO] [stdout]    |                            ^^^^^^ help: remove the `-> ()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stdout]    = note: `#[warn(clippy::unused_unit)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "e9ccc26c4f05a26bf3b7f79ebd48eabf5fa160025447ce81bf704c54c3dfdac0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9ccc26c4f05a26bf3b7f79ebd48eabf5fa160025447ce81bf704c54c3dfdac0", kill_on_drop: false }`
[INFO] [stdout] e9ccc26c4f05a26bf3b7f79ebd48eabf5fa160025447ce81bf704c54c3dfdac0