[INFO] cloning repository https://github.com/timhabermaas/aoc2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/timhabermaas/aoc2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimhabermaas%2Faoc2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimhabermaas%2Faoc2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9d0139b47838d3b3cf97da6f1f6563a0ec6897bd
[INFO] checking timhabermaas/aoc2020 against try#3857be5045fe74bd0f296f6f4c23db10f8857f73 for pr-156807
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimhabermaas%2Faoc2020" "/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/timhabermaas/aoc2020
[INFO] finished tweaking git repo https://github.com/timhabermaas/aoc2020
[INFO] tweaked toml for git repo https://github.com/timhabermaas/aoc2020 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/timhabermaas/aoc2020 on toolchain 3857be5045fe74bd0f296f6f4c23db10f8857f73
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/timhabermaas/aoc2020 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" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking timhabermaas/aoc2020 against try#3857be5045fe74bd0f296f6f4c23db10f8857f73 for pr-156807
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimhabermaas%2Faoc2020" "/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/timhabermaas/aoc2020
[INFO] finished tweaking git repo https://github.com/timhabermaas/aoc2020
[INFO] tweaked toml for git repo https://github.com/timhabermaas/aoc2020 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/timhabermaas/aoc2020 on toolchain 3857be5045fe74bd0f296f6f4c23db10f8857f73
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/timhabermaas/aoc2020 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" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8375a42b1f9510568be793aeb29535b0aece65c8927511d4365337a5f48ada1a
[INFO] running `Command { std: "docker" "start" "-a" "8375a42b1f9510568be793aeb29535b0aece65c8927511d4365337a5f48ada1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8375a42b1f9510568be793aeb29535b0aece65c8927511d4365337a5f48ada1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8375a42b1f9510568be793aeb29535b0aece65c8927511d4365337a5f48ada1a", kill_on_drop: false }`
[INFO] [stdout] 8375a42b1f9510568be793aeb29535b0aece65c8927511d4365337a5f48ada1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc43dc957be567d1dd8940ebf61b45038c2b6e849d0f1008892469a5d307e5aa
[INFO] running `Command { std: "docker" "start" "-a" "fc43dc957be567d1dd8940ebf61b45038c2b6e849d0f1008892469a5d307e5aa", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking aoc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `revert_instruction` is never read
[INFO] [stdout]   --> src/bin/day08.rs:81:38
[INFO] [stdout]    |
[INFO] [stdout] 81 |         let mut revert_instruction = None;
[INFO] [stdout]    |                                      ^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 85 |                 revert_instruction = Some(Instruction::Nop(offset));
[INFO] [stdout]    |                 --------------------------------------------------- `revert_instruction` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/day08.rs:36:18
[INFO] [stdout]    |
[INFO] [stdout] 36 |     InfiniteLoop(i64),
[INFO] [stdout]    |     ------------ ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ExecuteResult` 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] 36 -     InfiniteLoop(i64),
[INFO] [stdout] 36 +     InfiniteLoop(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/day19.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let mut rules = parse_rules(&rules);
[INFO] [stdout]     |         ----^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Multiple` is never constructed
[INFO] [stdout]   --> src/bin/day19.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  6 | enum Rule {
[INFO] [stdout]    |      ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 11 |     Multiple(usize, usize),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Rule` 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_terminal_characters` is never used
[INFO] [stdout]   --> src/bin/day19.rs:93:4
[INFO] [stdout]    |
[INFO] [stdout] 93 | fn get_terminal_characters(rules: &Rules, rule: &Rule) -> Vec<char> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/bin/day08.rs:84:17
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 std::mem::replace(&mut instructions[i], Instruction::Jmp(offset));
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 let _ = std::mem::replace(&mut instructions[i], Instruction::Jmp(offset));
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/bin/day08.rs:88:17
[INFO] [stdout]    |
[INFO] [stdout] 88 |                 std::mem::replace(&mut instructions[i], Instruction::Nop(offset));
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 88 |                 let _ = std::mem::replace(&mut instructions[i], Instruction::Nop(offset));
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/bin/day08.rs:102:17
[INFO] [stdout]     |
[INFO] [stdout] 102 |                 std::mem::replace(&mut instructions[i], instruction);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 102 |                 let _ = std::mem::replace(&mut instructions[i], instruction);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/bin/day17.rs:36:19
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
[INFO] [stdout]    |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `deg_to_radian` should have an upper case name
[INFO] [stdout]   --> src/bin/day12.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | static deg_to_radian: f64 = PI / 180.0;
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]    |
[INFO] [stdout] 16 - static deg_to_radian: f64 = PI / 180.0;
[INFO] [stdout] 16 + static DEG_TO_RADIAN: f64 = PI / 180.0;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `revert_instruction` is never read
[INFO] [stdout]   --> src/bin/day08.rs:81:38
[INFO] [stdout]    |
[INFO] [stdout] 81 |         let mut revert_instruction = None;
[INFO] [stdout]    |                                      ^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 85 |                 revert_instruction = Some(Instruction::Nop(offset));
[INFO] [stdout]    |                 --------------------------------------------------- `revert_instruction` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/day08.rs:36:18
[INFO] [stdout]    |
[INFO] [stdout] 36 |     InfiniteLoop(i64),
[INFO] [stdout]    |     ------------ ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ExecuteResult` 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] 36 -     InfiniteLoop(i64),
[INFO] [stdout] 36 +     InfiniteLoop(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::sorted`
[INFO] [stdout]  --> src/bin/day14.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use itertools::sorted;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/bin/day08.rs:84:17
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 std::mem::replace(&mut instructions[i], Instruction::Jmp(offset));
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 let _ = std::mem::replace(&mut instructions[i], Instruction::Jmp(offset));
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/bin/day08.rs:88:17
[INFO] [stdout]    |
[INFO] [stdout] 88 |                 std::mem::replace(&mut instructions[i], Instruction::Nop(offset));
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 88 |                 let _ = std::mem::replace(&mut instructions[i], Instruction::Nop(offset));
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/bin/day08.rs:102:17
[INFO] [stdout]     |
[INFO] [stdout] 102 |                 std::mem::replace(&mut instructions[i], instruction);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 102 |                 let _ = std::mem::replace(&mut instructions[i], instruction);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/bin/day17.rs:36:19
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
[INFO] [stdout]    |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `deg_to_radian` should have an upper case name
[INFO] [stdout]   --> src/bin/day12.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | static deg_to_radian: f64 = PI / 180.0;
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]    |
[INFO] [stdout] 16 - static deg_to_radian: f64 = PI / 180.0;
[INFO] [stdout] 16 + static DEG_TO_RADIAN: f64 = PI / 180.0;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/day19.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let mut rules = parse_rules(&rules);
[INFO] [stdout]     |         ----^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Multiple` is never constructed
[INFO] [stdout]   --> src/bin/day19.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  6 | enum Rule {
[INFO] [stdout]    |      ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 11 |     Multiple(usize, usize),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Rule` 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_terminal_characters` is never used
[INFO] [stdout]   --> src/bin/day19.rs:93:4
[INFO] [stdout]    |
[INFO] [stdout] 93 | fn get_terminal_characters(rules: &Rules, rule: &Rule) -> Vec<char> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `round` is assigned to, but never used
[INFO] [stdout]   --> src/bin/day22.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let mut round = 1;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_round` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `round` is never read
[INFO] [stdout]    --> src/bin/day22.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |         round += 1;
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `round` is assigned to, but never used
[INFO] [stdout]   --> src/bin/day22.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let mut round = 1;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_round` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `round` is never read
[INFO] [stdout]    --> src/bin/day22.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |         round += 1;
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `Command { std: "docker" "inspect" "fc43dc957be567d1dd8940ebf61b45038c2b6e849d0f1008892469a5d307e5aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc43dc957be567d1dd8940ebf61b45038c2b6e849d0f1008892469a5d307e5aa", kill_on_drop: false }`
[INFO] [stdout] fc43dc957be567d1dd8940ebf61b45038c2b6e849d0f1008892469a5d307e5aa
