[INFO] cloning repository https://github.com/desbo/advent-of-code-2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/desbo/advent-of-code-2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdesbo%2Fadvent-of-code-2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdesbo%2Fadvent-of-code-2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 920c13019a70feb868eb563a688e0cd05212bf1e
[INFO] checking desbo/advent-of-code-2021 against 5c543b0b8c73c7b72bc8284ced4fb22ead15734d for pr-160186
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdesbo%2Fadvent-of-code-2021" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/desbo/advent-of-code-2021
[INFO] finished tweaking git repo https://github.com/desbo/advent-of-code-2021
[INFO] tweaked toml for git repo https://github.com/desbo/advent-of-code-2021 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/desbo/advent-of-code-2021 on toolchain 5c543b0b8c73c7b72bc8284ced4fb22ead15734d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/desbo/advent-of-code-2021 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" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hashbrown v0.11.2
[INFO] [stderr]   Downloaded indexmap v1.7.0
[INFO] [stderr]   Downloaded autocfg v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] baa5f9514bbc46231d3f70d8aa7d9e2d4bc628bc65d78f5a52ea4fa3dc31fb86
[INFO] running `Command { std: "docker" "start" "baa5f9514bbc46231d3f70d8aa7d9e2d4bc628bc65d78f5a52ea4fa3dc31fb86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "baa5f9514bbc46231d3f70d8aa7d9e2d4bc628bc65d78f5a52ea4fa3dc31fb86", 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" "baa5f9514bbc46231d3f70d8aa7d9e2d4bc628bc65d78f5a52ea4fa3dc31fb86" "/opt/rustwide/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "baa5f9514bbc46231d3f70d8aa7d9e2d4bc628bc65d78f5a52ea4fa3dc31fb86", 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" "baa5f9514bbc46231d3f70d8aa7d9e2d4bc628bc65d78f5a52ea4fa3dc31fb86" "/opt/rustwide/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking advent-of-code-2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]  --> src/day07.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 |         (nums[(nums.len() / 2)] + nums[(nums.len() / 2) + 1]) / 2
[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] 9 -         (nums[(nums.len() / 2)] + nums[(nums.len() / 2) + 1]) / 2
[INFO] [stdout] 9 +         (nums[nums.len() / 2] + nums[(nums.len() / 2) + 1]) / 2
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]  --> src/day07.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 |         (nums[(nums.len() / 2)] + nums[(nums.len() / 2) + 1]) / 2
[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] 9 -         (nums[(nums.len() / 2)] + nums[(nums.len() / 2) + 1]) / 2
[INFO] [stdout] 9 +         (nums[nums.len() / 2] + nums[(nums.len() / 2) + 1]) / 2
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day02.rs:75:30
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub struct ParseCommandError(String);
[INFO] [stdout]    |            ----------------- ^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/day04.rs:209:26
[INFO] [stdout]     |
[INFO] [stdout] 209 |     (1..10).for_each(|x| drop(expected_squares.insert(x, false)));
[INFO] [stdout]     |                          ^^^^^---------------------------------^
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               argument has type `Option<bool>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/day08.rs:238:9
[INFO] [stdout]     |
[INFO] [stdout] 238 |         drop(part2(&[String::from(EXAMPLE)]))
[INFO] [stdout]     |         ^^^^^-------------------------------^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `u32`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day02.rs:75:30
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub struct ParseCommandError(String);
[INFO] [stdout]    |            ----------------- ^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[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] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.03s
[INFO] running `Command { std: "docker" "inspect" "baa5f9514bbc46231d3f70d8aa7d9e2d4bc628bc65d78f5a52ea4fa3dc31fb86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "baa5f9514bbc46231d3f70d8aa7d9e2d4bc628bc65d78f5a52ea4fa3dc31fb86", kill_on_drop: false }`
[INFO] [stdout] baa5f9514bbc46231d3f70d8aa7d9e2d4bc628bc65d78f5a52ea4fa3dc31fb86
