[INFO] cloning repository https://github.com/sseemayer/aoc2016
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sseemayer/aoc2016" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsseemayer%2Faoc2016", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsseemayer%2Faoc2016'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b57814fca0d3bb02a6e9a96fce4674a3bb5fb1a
[INFO] checking sseemayer/aoc2016 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsseemayer%2Faoc2016" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sseemayer/aoc2016 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sseemayer/aoc2016
[INFO] finished tweaking git repo https://github.com/sseemayer/aoc2016
[INFO] tweaked toml for git repo https://github.com/sseemayer/aoc2016 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/sseemayer/aoc2016 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8430676fbb4fed4d00f51fdef932edd2ed3c2376d41aea495d6eb864634426e3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8430676fbb4fed4d00f51fdef932edd2ed3c2376d41aea495d6eb864634426e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8430676fbb4fed4d00f51fdef932edd2ed3c2376d41aea495d6eb864634426e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8430676fbb4fed4d00f51fdef932edd2ed3c2376d41aea495d6eb864634426e3", kill_on_drop: false }`
[INFO] [stdout] 8430676fbb4fed4d00f51fdef932edd2ed3c2376d41aea495d6eb864634426e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2002633b783fc664e04003e4cd92535dda5b1b8833e378dca27e31f2a3a6aec9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2002633b783fc664e04003e4cd92535dda5b1b8833e378dca27e31f2a3a6aec9", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.3.1
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]    Compiling snafu-derive v0.6.10
[INFO] [stderr]     Checking snafu v0.6.10
[INFO] [stderr]     Checking aoc2016 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ResultExt`
[INFO] [stdout]  --> src/asmbunny.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use snafu::{ResultExt, Snafu};
[INFO] [stdout]   |             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/asmbunny.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ResultExt`
[INFO] [stdout]  --> src/asmbunny.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use snafu::{ResultExt, Snafu};
[INFO] [stdout]   |             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/asmbunny.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ResultExt`
[INFO] [stdout]  --> src/bin/day16.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use snafu::{ResultExt, Snafu};
[INFO] [stdout]   |             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ResultExt`
[INFO] [stdout]  --> src/bin/day19.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use snafu::{ResultExt, Snafu};
[INFO] [stdout]   |             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StepResult`
[INFO] [stdout]  --> src/bin/day25.rs:3:55
[INFO] [stdout]   |
[INFO] [stdout] 3 | use aoc2016::asmbunny::{AsmError, Instruction, State, StepResult};
[INFO] [stdout]   |                                                       ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ResultExt`
[INFO] [stdout]  --> src/bin/day17.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use snafu::{ResultExt, Snafu};
[INFO] [stdout]   |             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused label
[INFO] [stdout]   --> src/bin/day17.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     'outer: while let Some((i, j, sequence)) = queue.pop_front() {
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ResultExt`
[INFO] [stdout]  --> src/bin/day16.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use snafu::{ResultExt, Snafu};
[INFO] [stdout]   |             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `fs::File`
[INFO] [stdout]  --> src/bin/day01.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fs::File,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 4 |     io::{BufRead, BufReader},
[INFO] [stdout]   |                   ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BinaryHeap`, `HashMap`, `VecDeque`, `cmp::Reverse`
[INFO] [stdout]  --> src/bin/day22.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     cmp::Reverse,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 3 |     collections::{BinaryHeap, HashMap, VecDeque},
[INFO] [stdout]   |                   ^^^^^^^^^^  ^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/bin/day01.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::{BufRead, BufReader},
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ResultExt`
[INFO] [stdout]  --> src/bin/day17.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use snafu::{ResultExt, Snafu};
[INFO] [stdout]   |             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused label
[INFO] [stdout]   --> src/bin/day17.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     'outer: while let Some((i, j, sequence)) = queue.pop_front() {
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StepResult`
[INFO] [stdout]  --> src/bin/day25.rs:3:55
[INFO] [stdout]   |
[INFO] [stdout] 3 | use aoc2016::asmbunny::{AsmError, Instruction, State, StepResult};
[INFO] [stdout]   |                                                       ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ResultExt`
[INFO] [stdout]  --> src/bin/day05.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use snafu::{ResultExt, Snafu};
[INFO] [stdout]   |             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ResultExt`
[INFO] [stdout]  --> src/bin/template.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use snafu::{ResultExt, Snafu};
[INFO] [stdout]   |             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stdout]   --> src/bin/day23.rs:43:22
[INFO] [stdout]    |
[INFO] [stdout] 43 |                     .into_iter()
[INFO] [stdout]    |                      ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ResultExt`
[INFO] [stdout]  --> src/bin/day19.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use snafu::{ResultExt, Snafu};
[INFO] [stdout]   |             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ResultExt`
[INFO] [stdout]  --> src/bin/template.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use snafu::{ResultExt, Snafu};
[INFO] [stdout]   |             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ResultExt`
[INFO] [stdout]  --> src/bin/day14.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use snafu::{ResultExt, Snafu};
[INFO] [stdout]   |             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ResultExt`
[INFO] [stdout]  --> src/bin/day14.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use snafu::{ResultExt, Snafu};
[INFO] [stdout]   |             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ResultExt`
[INFO] [stdout]  --> src/bin/day13.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use snafu::{ResultExt, Snafu};
[INFO] [stdout]   |             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `fs::File`
[INFO] [stdout]  --> src/bin/day01.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fs::File,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 4 |     io::{BufRead, BufReader},
[INFO] [stdout]   |                   ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stdout]   --> src/bin/day23.rs:43:22
[INFO] [stdout]    |
[INFO] [stdout] 43 |                     .into_iter()
[INFO] [stdout]    |                      ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/bin/day01.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::{BufRead, BufReader},
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BinaryHeap`, `HashMap`, `VecDeque`, `cmp::Reverse`
[INFO] [stdout]  --> src/bin/day22.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     cmp::Reverse,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 3 |     collections::{BinaryHeap, HashMap, VecDeque},
[INFO] [stdout]   |                   ^^^^^^^^^^  ^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ResultExt`
[INFO] [stdout]  --> src/bin/day05.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use snafu::{ResultExt, Snafu};
[INFO] [stdout]   |             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ResultExt`
[INFO] [stdout]  --> src/bin/day13.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use snafu::{ResultExt, Snafu};
[INFO] [stdout]   |             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.90s
[INFO] running `Command { std: "docker" "inspect" "2002633b783fc664e04003e4cd92535dda5b1b8833e378dca27e31f2a3a6aec9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2002633b783fc664e04003e4cd92535dda5b1b8833e378dca27e31f2a3a6aec9", kill_on_drop: false }`
[INFO] [stdout] 2002633b783fc664e04003e4cd92535dda5b1b8833e378dca27e31f2a3a6aec9