[INFO] cloning repository https://github.com/alexdevteam/aoc2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alexdevteam/aoc2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexdevteam%2Faoc2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexdevteam%2Faoc2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f225c90bd733bda09d4ecba54e78e0985769c805
[INFO] checking alexdevteam/aoc2020 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexdevteam%2Faoc2020" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/alexdevteam/aoc2020
[INFO] finished tweaking git repo https://github.com/alexdevteam/aoc2020
[INFO] tweaked toml for git repo https://github.com/alexdevteam/aoc2020 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/alexdevteam/aoc2020 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/alexdevteam/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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1afe98235edad9a659fdc90f7296fbcc6b6fc1f200c6ec332a6325459be403c9
[INFO] running `Command { std: "docker" "start" "-a" "1afe98235edad9a659fdc90f7296fbcc6b6fc1f200c6ec332a6325459be403c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1afe98235edad9a659fdc90f7296fbcc6b6fc1f200c6ec332a6325459be403c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1afe98235edad9a659fdc90f7296fbcc6b6fc1f200c6ec332a6325459be403c9", kill_on_drop: false }`
[INFO] [stdout] 1afe98235edad9a659fdc90f7296fbcc6b6fc1f200c6ec332a6325459be403c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c386a0225b9f4985b9b442769389b930da84d19b3b4bf7da9a033aa673b264d
[INFO] running `Command { std: "docker" "start" "-a" "1c386a0225b9f4985b9b442769389b930da84d19b3b4bf7da9a033aa673b264d", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking aoc20 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/puzzle9.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::collections::VecDeque;
[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 import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/puzzle9.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/puzzle7.rs:47:6
[INFO] [stdout]    |
[INFO] [stdout] 47 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/puzzle7.rs:52:58
[INFO] [stdout]    |
[INFO] [stdout] 52 |             count_bags_recursively(bags, content, count, (*cnt * multiplier));
[INFO] [stdout]    |                                                          ^                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 52 -             count_bags_recursively(bags, content, count, (*cnt * multiplier));
[INFO] [stdout] 52 +             count_bags_recursively(bags, content, count, *cnt * multiplier );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/puzzle5.rs:27:28
[INFO] [stdout]    |
[INFO] [stdout] 27 |                 _ => row = (row << 1),
[INFO] [stdout]    |                            ^        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 27 -                 _ => row = (row << 1),
[INFO] [stdout] 27 +                 _ => row = row << 1 ,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/puzzle8.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |             _ => unreachable!()
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/puzzle8.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |             Instruction::Acc(offset) => {
[INFO] [stdout]    |             ------------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 56 |             Instruction::Jmp(offset) => {
[INFO] [stdout]    |             ------------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 66 |             Instruction::Nop(offset) => {
[INFO] [stdout]    |             ------------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 73 |             _ => unreachable!()
[INFO] [stdout]    |             ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/puzzle5.rs:35:31
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 _ => column = (column << 1),
[INFO] [stdout]    |                               ^           ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 35 -                 _ => column = (column << 1),
[INFO] [stdout] 35 +                 _ => column = column << 1 ,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/puzzle8.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut instructions = read_instructions!("inputs/puzzle8.txt");
[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: unreachable pattern
[INFO] [stdout]   --> src/puzzle8.rs:37:17
[INFO] [stdout]    |
[INFO] [stdout] 37 |                 _ => unreachable!()
[INFO] [stdout]    |                 ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/puzzle8.rs:37:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |                 Instruction::Acc(offset) => {
[INFO] [stdout]    |                 ------------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 32 |                 Instruction::Jmp(offset) => {
[INFO] [stdout]    |                 ------------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 36 |                 Instruction::Nop(_) => (),
[INFO] [stdout]    |                 ------------------- matches some of the same values
[INFO] [stdout] 37 |                 _ => unreachable!()
[INFO] [stdout]    |                 ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `instruction`
[INFO] [stdout]   --> src/puzzle12.rs:94:13
[INFO] [stdout]    |
[INFO] [stdout] 94 |         let instruction = line.chars().nth(0).unwrap();
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_instruction`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `instruction`
[INFO] [stdout]    --> src/puzzle12.rs:123:13
[INFO] [stdout]     |
[INFO] [stdout] 123 |         let instruction = line.chars().nth(0).unwrap();
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_instruction`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/puzzle6.rs:38:10
[INFO] [stdout]    |
[INFO] [stdout] 38 |     for (i, line) in cursor.lines().enumerate() {
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `contents`
[INFO] [stdout]   --> src/puzzle7.rs:58:15
[INFO] [stdout]    |
[INFO] [stdout] 58 |     for (bag, contents) in bags.iter() {
[INFO] [stdout]    |               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_contents`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/puzzle8.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |             _ => unreachable!()
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/puzzle8.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |             Instruction::Acc(offset) => {
[INFO] [stdout]    |             ------------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 56 |             Instruction::Jmp(offset) => {
[INFO] [stdout]    |             ------------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 66 |             Instruction::Nop(offset) => {
[INFO] [stdout]    |             ------------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 73 |             _ => unreachable!()
[INFO] [stdout]    |             ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/puzzle8.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut instructions = read_instructions!("inputs/puzzle8.txt");
[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: unreachable pattern
[INFO] [stdout]   --> src/puzzle8.rs:37:17
[INFO] [stdout]    |
[INFO] [stdout] 37 |                 _ => unreachable!()
[INFO] [stdout]    |                 ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/puzzle8.rs:37:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |                 Instruction::Acc(offset) => {
[INFO] [stdout]    |                 ------------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 32 |                 Instruction::Jmp(offset) => {
[INFO] [stdout]    |                 ------------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 36 |                 Instruction::Nop(_) => (),
[INFO] [stdout]    |                 ------------------- matches some of the same values
[INFO] [stdout] 37 |                 _ => unreachable!()
[INFO] [stdout]    |                 ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/puzzle5.rs:27:28
[INFO] [stdout]    |
[INFO] [stdout] 27 |                 _ => row = (row << 1),
[INFO] [stdout]    |                            ^        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 27 -                 _ => row = (row << 1),
[INFO] [stdout] 27 +                 _ => row = row << 1 ,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/puzzle5.rs:35:31
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 _ => column = (column << 1),
[INFO] [stdout]    |                               ^           ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 35 -                 _ => column = (column << 1),
[INFO] [stdout] 35 +                 _ => column = column << 1 ,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/puzzle7.rs:47:6
[INFO] [stdout]    |
[INFO] [stdout] 47 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/puzzle7.rs:52:58
[INFO] [stdout]    |
[INFO] [stdout] 52 |             count_bags_recursively(bags, content, count, (*cnt * multiplier));
[INFO] [stdout]    |                                                          ^                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 52 -             count_bags_recursively(bags, content, count, (*cnt * multiplier));
[INFO] [stdout] 52 +             count_bags_recursively(bags, content, count, *cnt * multiplier );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `contents`
[INFO] [stdout]   --> src/puzzle7.rs:58:15
[INFO] [stdout]    |
[INFO] [stdout] 58 |     for (bag, contents) in bags.iter() {
[INFO] [stdout]    |               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_contents`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read` and `stdin`
[INFO] [stdout]  --> src/puzzle11.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{stdin, Read};
[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 imports: `Read` and `stdin`
[INFO] [stdout]  --> src/puzzle11.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{stdin, Read};
[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 variable: `instruction`
[INFO] [stdout]   --> src/puzzle12.rs:94:13
[INFO] [stdout]    |
[INFO] [stdout] 94 |         let instruction = line.chars().nth(0).unwrap();
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_instruction`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `instruction`
[INFO] [stdout]    --> src/puzzle12.rs:123:13
[INFO] [stdout]     |
[INFO] [stdout] 123 |         let instruction = line.chars().nth(0).unwrap();
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_instruction`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n_occupied`
[INFO] [stdout]   --> src/puzzle11.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let n_occupied = |x: i32,y: i32| -> usize {
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_occupied`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n_occupied`
[INFO] [stdout]   --> src/puzzle11.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let n_occupied = |x: i32,y: i32| -> usize {
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_occupied`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/puzzle6.rs:38:10
[INFO] [stdout]    |
[INFO] [stdout] 38 |     for (i, line) in cursor.lines().enumerate() {
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.32s
[INFO] running `Command { std: "docker" "inspect" "1c386a0225b9f4985b9b442769389b930da84d19b3b4bf7da9a033aa673b264d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c386a0225b9f4985b9b442769389b930da84d19b3b4bf7da9a033aa673b264d", kill_on_drop: false }`
[INFO] [stdout] 1c386a0225b9f4985b9b442769389b930da84d19b3b4bf7da9a033aa673b264d
