[INFO] cloning repository https://github.com/malinowskikam/expression_parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/malinowskikam/expression_parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmalinowskikam%2Fexpression_parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmalinowskikam%2Fexpression_parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b07ef83d44ef8d2b1d73e5ad396f50b7b8129e7
[INFO] linting malinowskikam/expression_parser against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmalinowskikam%2Fexpression_parser" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/malinowskikam/expression_parser
[INFO] finished tweaking git repo https://github.com/malinowskikam/expression_parser
[INFO] tweaked toml for git repo https://github.com/malinowskikam/expression_parser written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/malinowskikam/expression_parser 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/malinowskikam/expression_parser 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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] f82d3edaa83f816ece17d7afc4d5051fbb67e60d58c4078825290a000ac7c6c7
[INFO] running `Command { std: "docker" "start" "-a" "f82d3edaa83f816ece17d7afc4d5051fbb67e60d58c4078825290a000ac7c6c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f82d3edaa83f816ece17d7afc4d5051fbb67e60d58c4078825290a000ac7c6c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f82d3edaa83f816ece17d7afc4d5051fbb67e60d58c4078825290a000ac7c6c7", kill_on_drop: false }`
[INFO] [stdout] f82d3edaa83f816ece17d7afc4d5051fbb67e60d58c4078825290a000ac7c6c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 1378ab6646931c892b04e9429702c070dcd5767bb8506ebdf056e8af00d9bc32
[INFO] running `Command { std: "docker" "start" "-a" "1378ab6646931c892b04e9429702c070dcd5767bb8506ebdf056e8af00d9bc32", kill_on_drop: false }`
[INFO] [stderr]     Checking expression_parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stdout]   --> src/expression.rs:92:33
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn attach_after(&self, exp: &Box<dyn Expression>) -> Result<Box<dyn Expression>, Box<dyn Error>>;
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^ help: try: `&dyn Expression`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stdout]    = note: `#[warn(clippy::borrowed_box)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stdout]   --> src/parser.rs:21:35
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn attach_exp(&mut self, exp: &Box<dyn Expression>) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^ help: try: `&dyn Expression`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]   --> src/parser.rs:37:74
[INFO] [stdout]    |
[INFO] [stdout] 37 |                 Err(e) => Err(format!("Error while parsing number: {}", e.to_string()))
[INFO] [stdout]    |                                                                          ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout]    = note: `#[warn(clippy::to_string_in_format_args)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stdout]   --> src/expression.rs:92:33
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn attach_after(&self, exp: &Box<dyn Expression>) -> Result<Box<dyn Expression>, Box<dyn Error>>;
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^ help: try: `&dyn Expression`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stdout]    = note: `#[warn(clippy::borrowed_box)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stdout]   --> src/parser.rs:21:35
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn attach_exp(&mut self, exp: &Box<dyn Expression>) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^ help: try: `&dyn Expression`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `to_string` applied to a type that implements `Display` in `format!` args
[INFO] [stdout]   --> src/parser.rs:37:74
[INFO] [stdout]    |
[INFO] [stdout] 37 |                 Err(e) => Err(format!("Error while parsing number: {}", e.to_string()))
[INFO] [stdout]    |                                                                          ^^^^^^^^^^^^ help: remove this
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_in_format_args
[INFO] [stdout]    = note: `#[warn(clippy::to_string_in_format_args)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> tests/test_expression.rs:22:17
[INFO] [stdout]    |
[INFO] [stdout] 22 |         assert!(!result.is_err());
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^ help: try: `result.is_ok()`
[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 boolean expression can be simplified
[INFO] [stdout]   --> tests/test_expression.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |     assert!(!result.is_err());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: try: `result.is_ok()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> tests/test_expression.rs:66:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |     assert!(!result.is_err());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: try: `result.is_ok()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "1378ab6646931c892b04e9429702c070dcd5767bb8506ebdf056e8af00d9bc32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1378ab6646931c892b04e9429702c070dcd5767bb8506ebdf056e8af00d9bc32", kill_on_drop: false }`
[INFO] [stdout] 1378ab6646931c892b04e9429702c070dcd5767bb8506ebdf056e8af00d9bc32