[INFO] cloning repository https://github.com/bm-w/advent21-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bm-w/advent21-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbm-w%2Fadvent21-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbm-w%2Fadvent21-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec2310a5555180ea34bfaa31fe8575d8d65a1a67
[INFO] checking bm-w/advent21-rs against 6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa for pr-159356
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbm-w%2Fadvent21-rs" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bm-w/advent21-rs
[INFO] finished tweaking git repo https://github.com/bm-w/advent21-rs
[INFO] tweaked toml for git repo https://github.com/bm-w/advent21-rs written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bm-w/advent21-rs on toolchain 6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bm-w/advent21-rs 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" "+6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c36f533e8924a726b63f9d01e781fa8c8c28c96d1d595403829afb31452ee0f5" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 503c734da7c88c833c60f334b1eff8676e080e70324cbc31a8c8d6906a60cd29
[INFO] running `Command { std: "docker" "start" "503c734da7c88c833c60f334b1eff8676e080e70324cbc31a8c8d6906a60cd29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "503c734da7c88c833c60f334b1eff8676e080e70324cbc31a8c8d6906a60cd29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "503c734da7c88c833c60f334b1eff8676e080e70324cbc31a8c8d6906a60cd29" "/opt/rustwide/cargo-home/bin/cargo" "+6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "503c734da7c88c833c60f334b1eff8676e080e70324cbc31a8c8d6906a60cd29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "503c734da7c88c833c60f334b1eff8676e080e70324cbc31a8c8d6906a60cd29" "/opt/rustwide/cargo-home/bin/cargo" "+6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.120
[INFO] [stderr]    Compiling unindent v0.1.8
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]    Compiling indoc v1.0.4
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking advent21 v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day02.rs:64:16
[INFO] [stdout]    |
[INFO] [stdout] 64 |     InvalidFormat(String),
[INFO] [stdout]    |     ------------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseCommandError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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] 64 -     InvalidFormat(String),
[INFO] [stdout] 64 +     InvalidFormat(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day02.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |     InvalidDir(String),
[INFO] [stdout]    |     ---------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseCommandError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 65 -     InvalidDir(String),
[INFO] [stdout] 65 +     InvalidDir(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day02.rs:66:16
[INFO] [stdout]    |
[INFO] [stdout] 66 |     InvalidAmount(ParseIntError),
[INFO] [stdout]    |     ------------- ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseCommandError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 66 -     InvalidAmount(ParseIntError),
[INFO] [stdout] 66 +     InvalidAmount(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day05.rs:85:16
[INFO] [stdout]    |
[INFO] [stdout] 85 |     InvalidFormat(String),
[INFO] [stdout]    |     ------------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParsePosError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 85 -     InvalidFormat(String),
[INFO] [stdout] 85 +     InvalidFormat(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day05.rs:86:11
[INFO] [stdout]    |
[INFO] [stdout] 86 |     InvalidX(ParseIntError),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParsePosError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 86 -     InvalidX(ParseIntError),
[INFO] [stdout] 86 +     InvalidX(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day05.rs:87:11
[INFO] [stdout]    |
[INFO] [stdout] 87 |     InvalidY(ParseIntError)
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParsePosError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 87 -     InvalidY(ParseIntError)
[INFO] [stdout] 87 +     InvalidY(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day05.rs:106:16
[INFO] [stdout]     |
[INFO] [stdout] 106 |     InvalidFormat(String),
[INFO] [stdout]     |     ------------- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseLineError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 106 -     InvalidFormat(String),
[INFO] [stdout] 106 +     InvalidFormat(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day05.rs:107:15
[INFO] [stdout]     |
[INFO] [stdout] 107 |     InvalidStart(ParsePosError),
[INFO] [stdout]     |     ------------ ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseLineError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 107 -     InvalidStart(ParsePosError),
[INFO] [stdout] 107 +     InvalidStart(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day05.rs:108:13
[INFO] [stdout]     |
[INFO] [stdout] 108 |     InvalidEnd(ParsePosError)
[INFO] [stdout]     |     ---------- ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseLineError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 108 -     InvalidEnd(ParsePosError)
[INFO] [stdout] 108 +     InvalidEnd(())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day12.rs:179:16
[INFO] [stdout]     |
[INFO] [stdout] 179 |     InvalidFormat(&'a str),
[INFO] [stdout]     |     ------------- ^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseConnError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 179 -     InvalidFormat(&'a str),
[INFO] [stdout] 179 +     InvalidFormat(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day12.rs:180:14
[INFO] [stdout]     |
[INFO] [stdout] 180 |     InvalidFrom(ParseCaveError<'a>),
[INFO] [stdout]     |     ----------- ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseConnError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 180 -     InvalidFrom(ParseCaveError<'a>),
[INFO] [stdout] 180 +     InvalidFrom(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day12.rs:181:12
[INFO] [stdout]     |
[INFO] [stdout] 181 |     InvalidTo(ParseCaveError<'a>),
[INFO] [stdout]     |     --------- ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseConnError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 181 -     InvalidTo(ParseCaveError<'a>),
[INFO] [stdout] 181 +     InvalidTo(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day13.rs:102:16
[INFO] [stdout]     |
[INFO] [stdout] 102 |     InvalidFormat(String),
[INFO] [stdout]     |     ------------- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParsePosError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 102 -     InvalidFormat(String),
[INFO] [stdout] 102 +     InvalidFormat(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day13.rs:103:11
[INFO] [stdout]     |
[INFO] [stdout] 103 |     InvalidX(ParseIntError),
[INFO] [stdout]     |     -------- ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParsePosError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 103 -     InvalidX(ParseIntError),
[INFO] [stdout] 103 +     InvalidX(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day13.rs:104:11
[INFO] [stdout]     |
[INFO] [stdout] 104 |     InvalidY(ParseIntError),
[INFO] [stdout]     |     -------- ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParsePosError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 104 -     InvalidY(ParseIntError),
[INFO] [stdout] 104 +     InvalidY(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day13.rs:120:27
[INFO] [stdout]     |
[INFO] [stdout] 120 | struct ParseFoldAxisError(String);
[INFO] [stdout]     |        ------------------ ^^^^^^
[INFO] [stdout]     |        |
[INFO] [stdout]     |        field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `ParseFoldAxisError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day13.rs:136:16
[INFO] [stdout]     |
[INFO] [stdout] 136 |     InvalidFormat(String),
[INFO] [stdout]     |     ------------- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseFoldInstrError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 136 -     InvalidFormat(String),
[INFO] [stdout] 136 +     InvalidFormat(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day13.rs:137:14
[INFO] [stdout]     |
[INFO] [stdout] 137 |     InvalidAxis(ParseFoldAxisError),
[INFO] [stdout]     |     ----------- ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseFoldInstrError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 137 -     InvalidAxis(ParseFoldAxisError),
[INFO] [stdout] 137 +     InvalidAxis(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day13.rs:138:16
[INFO] [stdout]     |
[INFO] [stdout] 138 |     InvalidAmount(ParseIntError),
[INFO] [stdout]     |     ------------- ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseFoldInstrError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 138 -     InvalidAmount(ParseIntError),
[INFO] [stdout] 138 +     InvalidAmount(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day14.rs:116:16
[INFO] [stdout]     |
[INFO] [stdout] 116 |     InvalidFormat(String),
[INFO] [stdout]     |     ------------- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseInsertRuleError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 116 -     InvalidFormat(String),
[INFO] [stdout] 116 +     InvalidFormat(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day14.rs:117:17
[INFO] [stdout]     |
[INFO] [stdout] 117 |     InvalidBetween(usize),
[INFO] [stdout]     |     -------------- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseInsertRuleError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 117 -     InvalidBetween(usize),
[INFO] [stdout] 117 +     InvalidBetween(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day14.rs:118:16
[INFO] [stdout]     |
[INFO] [stdout] 118 |     InvalidInsert(usize),
[INFO] [stdout]     |     ------------- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseInsertRuleError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 118 -     InvalidInsert(usize),
[INFO] [stdout] 118 +     InvalidInsert(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day17.rs:133:14
[INFO] [stdout]     |
[INFO] [stdout] 133 |     InvalidFrom(ParseIntError),
[INFO] [stdout]     |     ----------- ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseRangeInclusiveError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 133 -     InvalidFrom(ParseIntError),
[INFO] [stdout] 133 +     InvalidFrom(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day17.rs:134:17
[INFO] [stdout]     |
[INFO] [stdout] 134 |     InvalidThrough(ParseIntError),
[INFO] [stdout]     |     -------------- ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseRangeInclusiveError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 134 -     InvalidThrough(ParseIntError),
[INFO] [stdout] 134 +     InvalidThrough(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day21.rs:159:11
[INFO] [stdout]     |
[INFO] [stdout] 159 |         Parsing(ParseIntError),
[INFO] [stdout]     |         ------- ^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IntError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 159 -         Parsing(ParseIntError),
[INFO] [stdout] 159 +         Parsing(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/day24.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 | enum Operand { Reg(Reg), Val(i64) }
[INFO] [stdout]   |                --- ^^^
[INFO] [stdout]   |                |
[INFO] [stdout]   |                field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Operand` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[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] 8 - enum Operand { Reg(Reg), Val(i64) }
[INFO] [stdout] 8 + enum Operand { Reg(()), Val(i64) }
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day24.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Inp(Reg),
[INFO] [stdout]    |     --- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Instr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 12 -     Inp(Reg),
[INFO] [stdout] 12 +     Inp(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/day24.rs:14:6
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Mul(Reg, Operand),
[INFO] [stdout]    |     --- ^^^  ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Instr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 14 -     Mul(Reg, Operand),
[INFO] [stdout] 14 +     Mul((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/day24.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Mod(Reg, Operand),
[INFO] [stdout]    |     --- ^^^  ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Instr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 16 -     Mod(Reg, Operand),
[INFO] [stdout] 16 +     Mod((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/day24.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Eql(Reg, Operand),
[INFO] [stdout]    |     --- ^^^  ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Instr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 17 -     Eql(Reg, Operand),
[INFO] [stdout] 17 +     Eql((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day24.rs:178:36
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub(super) struct InvalidRegError(Option<char>);
[INFO] [stdout]     |                       --------------- ^^^^^^^^^^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `InvalidRegError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/day24.rs:207:11
[INFO] [stdout]     |
[INFO] [stdout] 207 |         Invalid(InvalidRegError, ParseIntError),
[INFO] [stdout]     |         ------- ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OperandError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 207 -         Invalid(InvalidRegError, ParseIntError),
[INFO] [stdout] 207 +         Invalid((), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day25.rs:136:44
[INFO] [stdout]     |
[INFO] [stdout] 136 |     pub(super) struct InvalidSeaCucumberError(Option<char>);
[INFO] [stdout]     |                       ----------------------- ^^^^^^^^^^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `InvalidSeaCucumberError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/day12.rs:43:16
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn other_cave(&self, than_cave: &Cave) -> &Cave {
[INFO] [stdout]    |                   ^^^^^                       ^^^^^
[INFO] [stdout]    |                   |                           ||
[INFO] [stdout]    |                   |                           |the same lifetime is hidden here
[INFO] [stdout]    |                   |                           the same lifetime is elided here
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn other_cave(&self, than_cave: &Cave) -> &Cave<'_> {
[INFO] [stdout]    |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/day12.rs:54:28
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn input_caves_from_str(s: &str) -> Caves {
[INFO] [stdout]    |                            ^^^^     ^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn input_caves_from_str(s: &str) -> Caves<'_> {
[INFO] [stdout]    |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/day14.rs:66:30
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn input_formula_from_str(s: &str) -> Formula {
[INFO] [stdout]    |                              ^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn input_formula_from_str(s: &str) -> Formula<'_> {
[INFO] [stdout]    |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day02.rs:64:16
[INFO] [stdout]    |
[INFO] [stdout] 64 |     InvalidFormat(String),
[INFO] [stdout]    |     ------------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseCommandError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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] 64 -     InvalidFormat(String),
[INFO] [stdout] 64 +     InvalidFormat(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `advent21` (bin "advent21" test) due to 2 previous errors; 29 warnings emitted
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day02.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |     InvalidDir(String),
[INFO] [stdout]    |     ---------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseCommandError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 65 -     InvalidDir(String),
[INFO] [stdout] 65 +     InvalidDir(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day02.rs:66:16
[INFO] [stdout]    |
[INFO] [stdout] 66 |     InvalidAmount(ParseIntError),
[INFO] [stdout]    |     ------------- ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseCommandError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 66 -     InvalidAmount(ParseIntError),
[INFO] [stdout] 66 +     InvalidAmount(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day05.rs:85:16
[INFO] [stdout]    |
[INFO] [stdout] 85 |     InvalidFormat(String),
[INFO] [stdout]    |     ------------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParsePosError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 85 -     InvalidFormat(String),
[INFO] [stdout] 85 +     InvalidFormat(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day05.rs:86:11
[INFO] [stdout]    |
[INFO] [stdout] 86 |     InvalidX(ParseIntError),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParsePosError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 86 -     InvalidX(ParseIntError),
[INFO] [stdout] 86 +     InvalidX(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day05.rs:87:11
[INFO] [stdout]    |
[INFO] [stdout] 87 |     InvalidY(ParseIntError)
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParsePosError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 87 -     InvalidY(ParseIntError)
[INFO] [stdout] 87 +     InvalidY(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day05.rs:106:16
[INFO] [stdout]     |
[INFO] [stdout] 106 |     InvalidFormat(String),
[INFO] [stdout]     |     ------------- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseLineError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 106 -     InvalidFormat(String),
[INFO] [stdout] 106 +     InvalidFormat(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day05.rs:107:15
[INFO] [stdout]     |
[INFO] [stdout] 107 |     InvalidStart(ParsePosError),
[INFO] [stdout]     |     ------------ ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseLineError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 107 -     InvalidStart(ParsePosError),
[INFO] [stdout] 107 +     InvalidStart(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day05.rs:108:13
[INFO] [stdout]     |
[INFO] [stdout] 108 |     InvalidEnd(ParsePosError)
[INFO] [stdout]     |     ---------- ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseLineError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 108 -     InvalidEnd(ParsePosError)
[INFO] [stdout] 108 +     InvalidEnd(())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day12.rs:179:16
[INFO] [stdout]     |
[INFO] [stdout] 179 |     InvalidFormat(&'a str),
[INFO] [stdout]     |     ------------- ^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseConnError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 179 -     InvalidFormat(&'a str),
[INFO] [stdout] 179 +     InvalidFormat(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day12.rs:180:14
[INFO] [stdout]     |
[INFO] [stdout] 180 |     InvalidFrom(ParseCaveError<'a>),
[INFO] [stdout]     |     ----------- ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseConnError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 180 -     InvalidFrom(ParseCaveError<'a>),
[INFO] [stdout] 180 +     InvalidFrom(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day12.rs:181:12
[INFO] [stdout]     |
[INFO] [stdout] 181 |     InvalidTo(ParseCaveError<'a>),
[INFO] [stdout]     |     --------- ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseConnError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 181 -     InvalidTo(ParseCaveError<'a>),
[INFO] [stdout] 181 +     InvalidTo(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day13.rs:102:16
[INFO] [stdout]     |
[INFO] [stdout] 102 |     InvalidFormat(String),
[INFO] [stdout]     |     ------------- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParsePosError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 102 -     InvalidFormat(String),
[INFO] [stdout] 102 +     InvalidFormat(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day13.rs:103:11
[INFO] [stdout]     |
[INFO] [stdout] 103 |     InvalidX(ParseIntError),
[INFO] [stdout]     |     -------- ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParsePosError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 103 -     InvalidX(ParseIntError),
[INFO] [stdout] 103 +     InvalidX(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day13.rs:104:11
[INFO] [stdout]     |
[INFO] [stdout] 104 |     InvalidY(ParseIntError),
[INFO] [stdout]     |     -------- ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParsePosError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 104 -     InvalidY(ParseIntError),
[INFO] [stdout] 104 +     InvalidY(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day13.rs:120:27
[INFO] [stdout]     |
[INFO] [stdout] 120 | struct ParseFoldAxisError(String);
[INFO] [stdout]     |        ------------------ ^^^^^^
[INFO] [stdout]     |        |
[INFO] [stdout]     |        field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `ParseFoldAxisError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day13.rs:136:16
[INFO] [stdout]     |
[INFO] [stdout] 136 |     InvalidFormat(String),
[INFO] [stdout]     |     ------------- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseFoldInstrError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 136 -     InvalidFormat(String),
[INFO] [stdout] 136 +     InvalidFormat(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day13.rs:137:14
[INFO] [stdout]     |
[INFO] [stdout] 137 |     InvalidAxis(ParseFoldAxisError),
[INFO] [stdout]     |     ----------- ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseFoldInstrError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 137 -     InvalidAxis(ParseFoldAxisError),
[INFO] [stdout] 137 +     InvalidAxis(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day13.rs:138:16
[INFO] [stdout]     |
[INFO] [stdout] 138 |     InvalidAmount(ParseIntError),
[INFO] [stdout]     |     ------------- ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseFoldInstrError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 138 -     InvalidAmount(ParseIntError),
[INFO] [stdout] 138 +     InvalidAmount(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day14.rs:116:16
[INFO] [stdout]     |
[INFO] [stdout] 116 |     InvalidFormat(String),
[INFO] [stdout]     |     ------------- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseInsertRuleError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 116 -     InvalidFormat(String),
[INFO] [stdout] 116 +     InvalidFormat(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day14.rs:117:17
[INFO] [stdout]     |
[INFO] [stdout] 117 |     InvalidBetween(usize),
[INFO] [stdout]     |     -------------- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseInsertRuleError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 117 -     InvalidBetween(usize),
[INFO] [stdout] 117 +     InvalidBetween(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day14.rs:118:16
[INFO] [stdout]     |
[INFO] [stdout] 118 |     InvalidInsert(usize),
[INFO] [stdout]     |     ------------- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseInsertRuleError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 118 -     InvalidInsert(usize),
[INFO] [stdout] 118 +     InvalidInsert(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day17.rs:133:14
[INFO] [stdout]     |
[INFO] [stdout] 133 |     InvalidFrom(ParseIntError),
[INFO] [stdout]     |     ----------- ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseRangeInclusiveError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 133 -     InvalidFrom(ParseIntError),
[INFO] [stdout] 133 +     InvalidFrom(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day17.rs:134:17
[INFO] [stdout]     |
[INFO] [stdout] 134 |     InvalidThrough(ParseIntError),
[INFO] [stdout]     |     -------------- ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseRangeInclusiveError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 134 -     InvalidThrough(ParseIntError),
[INFO] [stdout] 134 +     InvalidThrough(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day21.rs:159:11
[INFO] [stdout]     |
[INFO] [stdout] 159 |         Parsing(ParseIntError),
[INFO] [stdout]     |         ------- ^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IntError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 159 -         Parsing(ParseIntError),
[INFO] [stdout] 159 +         Parsing(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/day25.rs:136:44
[INFO] [stdout]     |
[INFO] [stdout] 136 |     pub(super) struct InvalidSeaCucumberError(Option<char>);
[INFO] [stdout]     |                       ----------------------- ^^^^^^^^^^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `InvalidSeaCucumberError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/day12.rs:43:16
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn other_cave(&self, than_cave: &Cave) -> &Cave {
[INFO] [stdout]    |                   ^^^^^                       ^^^^^
[INFO] [stdout]    |                   |                           ||
[INFO] [stdout]    |                   |                           |the same lifetime is hidden here
[INFO] [stdout]    |                   |                           the same lifetime is elided here
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn other_cave(&self, than_cave: &Cave) -> &Cave<'_> {
[INFO] [stdout]    |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/day12.rs:54:28
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn input_caves_from_str(s: &str) -> Caves {
[INFO] [stdout]    |                            ^^^^     ^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn input_caves_from_str(s: &str) -> Caves<'_> {
[INFO] [stdout]    |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/day14.rs:66:30
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn input_formula_from_str(s: &str) -> Formula {
[INFO] [stdout]    |                              ^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn input_formula_from_str(s: &str) -> Formula<'_> {
[INFO] [stdout]    |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: crater fail !! problematic pattern detected !!
[INFO] [stdout]    --> src/day24.rs:294:84
[INFO] [stdout]     |
[INFO] [stdout] 294 |         assert!(matches!("a".parse::<Operand>(), Err(Invalid(InvalidRegError(Some('a')), ParseIntError { .. }))));
[INFO] [stdout]     |                                                                                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type is defined in crate `core`
[INFO] [stdout]     = note: `#[deny(rest_pattern_match_on_struct_with_all_private_fields)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: crater fail !! problematic pattern detected !!
[INFO] [stdout]    --> src/day24.rs:295:85
[INFO] [stdout]     |
[INFO] [stdout] 295 |         assert!(matches!("ab".parse::<Operand>(), Err(Invalid(InvalidRegError(Some('b')), ParseIntError { .. }))));
[INFO] [stdout]     |                                                                                           ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type is defined in crate `core`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "503c734da7c88c833c60f334b1eff8676e080e70324cbc31a8c8d6906a60cd29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "503c734da7c88c833c60f334b1eff8676e080e70324cbc31a8c8d6906a60cd29", kill_on_drop: false }`
[INFO] [stdout] 503c734da7c88c833c60f334b1eff8676e080e70324cbc31a8c8d6906a60cd29
