[INFO] fetching crate bqrs 0.1.3...
[INFO] checking bqrs-0.1.3 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate bqrs 0.1.3 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate bqrs 0.1.3 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bqrs 0.1.3
[INFO] finished tweaking crates.io crate bqrs 0.1.3
[INFO] tweaked toml for crates.io crate bqrs 0.1.3 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98ed20e41405fb3ff9c761c123bfed62b528cae3ad7e573964e565cde23ff55f
[INFO] running `Command { std: "docker" "start" "-a" "98ed20e41405fb3ff9c761c123bfed62b528cae3ad7e573964e565cde23ff55f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98ed20e41405fb3ff9c761c123bfed62b528cae3ad7e573964e565cde23ff55f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98ed20e41405fb3ff9c761c123bfed62b528cae3ad7e573964e565cde23ff55f", kill_on_drop: false }`
[INFO] [stdout] 98ed20e41405fb3ff9c761c123bfed62b528cae3ad7e573964e565cde23ff55f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1de52bb031451ac4fe8a5b065e38421fdb3e8de93216f0da385f0fe19380f3ba
[INFO] running `Command { std: "docker" "start" "-a" "1de52bb031451ac4fe8a5b065e38421fdb3e8de93216f0da385f0fe19380f3ba", kill_on_drop: false }`
[INFO] [stderr]     Checking bqrs v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser.rs:111:20
[INFO] [stdout]     |
[INFO] [stdout] 111 |                 'a'...'z' | 'A'...'Z' =>
[INFO] [stdout]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser.rs:111:32
[INFO] [stdout]     |
[INFO] [stdout] 111 |                 'a'...'z' | 'A'...'Z' =>
[INFO] [stdout]     |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser.rs:111:20
[INFO] [stdout]     |
[INFO] [stdout] 111 |                 'a'...'z' | 'A'...'Z' =>
[INFO] [stdout]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser.rs:111:32
[INFO] [stdout]     |
[INFO] [stdout] 111 |                 'a'...'z' | 'A'...'Z' =>
[INFO] [stdout]     |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser.rs:150:28
[INFO] [stdout]     |
[INFO] [stdout] 150 |                         Ok(mut right) => left = Node::OR(Box::new(left), Box::new(right)),
[INFO] [stdout]     |                            ----^^^^^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser.rs:181:28
[INFO] [stdout]     |
[INFO] [stdout] 181 |                         Ok(mut right) => left = Node::AND(Box::new(left), Box::new(right)),
[INFO] [stdout]     |                            ----^^^^^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:44:42
[INFO] [stdout]    |
[INFO] [stdout] 44 | #[derive(Debug)] pub struct ParsingError(&'static str);
[INFO] [stdout]    |                             ------------ ^^^^^^^^^^^^
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParsingError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 44 | #[derive(Debug)] pub struct ParsingError(());
[INFO] [stdout]    |                                          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser.rs:150:28
[INFO] [stdout]     |
[INFO] [stdout] 150 |                         Ok(mut right) => left = Node::OR(Box::new(left), Box::new(right)),
[INFO] [stdout]     |                            ----^^^^^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser.rs:181:28
[INFO] [stdout]     |
[INFO] [stdout] 181 |                         Ok(mut right) => left = Node::AND(Box::new(left), Box::new(right)),
[INFO] [stdout]     |                            ----^^^^^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:44:42
[INFO] [stdout]    |
[INFO] [stdout] 44 | #[derive(Debug)] pub struct ParsingError(&'static str);
[INFO] [stdout]    |                             ------------ ^^^^^^^^^^^^
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParsingError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 44 | #[derive(Debug)] pub struct ParsingError(());
[INFO] [stdout]    |                                          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "1de52bb031451ac4fe8a5b065e38421fdb3e8de93216f0da385f0fe19380f3ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1de52bb031451ac4fe8a5b065e38421fdb3e8de93216f0da385f0fe19380f3ba", kill_on_drop: false }`
[INFO] [stdout] 1de52bb031451ac4fe8a5b065e38421fdb3e8de93216f0da385f0fe19380f3ba
[INFO] checking bqrs-0.1.3 against try#bfe97fcae016881ad333f0ff8cea2cadb9cf136c for pr-121848
[INFO] extracting crate bqrs 0.1.3 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate bqrs 0.1.3 on toolchain bfe97fcae016881ad333f0ff8cea2cadb9cf136c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bqrs 0.1.3
[INFO] finished tweaking crates.io crate bqrs 0.1.3
[INFO] tweaked toml for crates.io crate bqrs 0.1.3 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 013058b2e25d645f4256d209e2a6820764f907489f26b32bb3d221b8ef7b664f
[INFO] running `Command { std: "docker" "start" "-a" "013058b2e25d645f4256d209e2a6820764f907489f26b32bb3d221b8ef7b664f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "013058b2e25d645f4256d209e2a6820764f907489f26b32bb3d221b8ef7b664f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "013058b2e25d645f4256d209e2a6820764f907489f26b32bb3d221b8ef7b664f", kill_on_drop: false }`
[INFO] [stdout] 013058b2e25d645f4256d209e2a6820764f907489f26b32bb3d221b8ef7b664f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f5b9b6133767c5501ab2d133e4a249f231892ad60e6382ee61cba97ee0688ff
[INFO] running `Command { std: "docker" "start" "-a" "1f5b9b6133767c5501ab2d133e4a249f231892ad60e6382ee61cba97ee0688ff", kill_on_drop: false }`
[INFO] [stderr]     Checking bqrs v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser.rs:111:20
[INFO] [stdout]     |
[INFO] [stdout] 111 |                 'a'...'z' | 'A'...'Z' =>
[INFO] [stdout]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser.rs:111:32
[INFO] [stdout]     |
[INFO] [stdout] 111 |                 'a'...'z' | 'A'...'Z' =>
[INFO] [stdout]     |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser.rs:111:20
[INFO] [stdout]     |
[INFO] [stdout] 111 |                 'a'...'z' | 'A'...'Z' =>
[INFO] [stdout]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser.rs:111:32
[INFO] [stdout]     |
[INFO] [stdout] 111 |                 'a'...'z' | 'A'...'Z' =>
[INFO] [stdout]     |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser.rs:150:28
[INFO] [stdout]     |
[INFO] [stdout] 150 |                         Ok(mut right) => left = Node::OR(Box::new(left), Box::new(right)),
[INFO] [stdout]     |                            ----^^^^^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser.rs:181:28
[INFO] [stdout]     |
[INFO] [stdout] 181 |                         Ok(mut right) => left = Node::AND(Box::new(left), Box::new(right)),
[INFO] [stdout]     |                            ----^^^^^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:44:42
[INFO] [stdout]    |
[INFO] [stdout] 44 | #[derive(Debug)] pub struct ParsingError(&'static str);
[INFO] [stdout]    |                             ------------ ^^^^^^^^^^^^
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParsingError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 44 | #[derive(Debug)] pub struct ParsingError(());
[INFO] [stdout]    |                                          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser.rs:150:28
[INFO] [stdout]     |
[INFO] [stdout] 150 |                         Ok(mut right) => left = Node::OR(Box::new(left), Box::new(right)),
[INFO] [stdout]     |                            ----^^^^^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser.rs:181:28
[INFO] [stdout]     |
[INFO] [stdout] 181 |                         Ok(mut right) => left = Node::AND(Box::new(left), Box::new(right)),
[INFO] [stdout]     |                            ----^^^^^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:44:42
[INFO] [stdout]    |
[INFO] [stdout] 44 | #[derive(Debug)] pub struct ParsingError(&'static str);
[INFO] [stdout]    |                             ------------ ^^^^^^^^^^^^
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParsingError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 44 | #[derive(Debug)] pub struct ParsingError(());
[INFO] [stdout]    |                                          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "1f5b9b6133767c5501ab2d133e4a249f231892ad60e6382ee61cba97ee0688ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f5b9b6133767c5501ab2d133e4a249f231892ad60e6382ee61cba97ee0688ff", kill_on_drop: false }`
[INFO] [stdout] 1f5b9b6133767c5501ab2d133e4a249f231892ad60e6382ee61cba97ee0688ff
