[INFO] cloning repository https://github.com/jonahgeorge/advent-of-code-2017
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jonahgeorge/advent-of-code-2017" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonahgeorge%2Fadvent-of-code-2017", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonahgeorge%2Fadvent-of-code-2017'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3c343c53b368571ec92e3bc1163b0b7211c5a77a
[INFO] checking jonahgeorge/advent-of-code-2017 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonahgeorge%2Fadvent-of-code-2017" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jonahgeorge/advent-of-code-2017 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jonahgeorge/advent-of-code-2017
[INFO] finished tweaking git repo https://github.com/jonahgeorge/advent-of-code-2017
[INFO] tweaked toml for git repo https://github.com/jonahgeorge/advent-of-code-2017 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jonahgeorge/advent-of-code-2017 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: /workspace/builds/worker-1-tc1/source/day1/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /workspace/builds/worker-1-tc1/source/day4/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /workspace/builds/worker-1-tc1/source/day5/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /workspace/builds/worker-1-tc1/source/day2/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a047f0ee55f182be354b147938f411a2c048bd2efbffa8b25b0f59f79d2069ba
[INFO] running `Command { std: "docker" "start" "-a" "a047f0ee55f182be354b147938f411a2c048bd2efbffa8b25b0f59f79d2069ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a047f0ee55f182be354b147938f411a2c048bd2efbffa8b25b0f59f79d2069ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a047f0ee55f182be354b147938f411a2c048bd2efbffa8b25b0f59f79d2069ba", kill_on_drop: false }`
[INFO] [stdout] a047f0ee55f182be354b147938f411a2c048bd2efbffa8b25b0f59f79d2069ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b05bbc78ecbe95cf35731d33027b02b7a2a08d67d619ebbd66b5af0bd6925c60
[INFO] running `Command { std: "docker" "start" "-a" "b05bbc78ecbe95cf35731d33027b02b7a2a08d67d619ebbd66b5af0bd6925c60", kill_on_drop: false }`
[INFO] [stderr] warning: /opt/rustwide/workdir/day5/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /opt/rustwide/workdir/day1/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /opt/rustwide/workdir/day4/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /opt/rustwide/workdir/day2/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking day2 v0.1.0 (/opt/rustwide/workdir/day2)
[INFO] [stderr]     Checking day5 v0.1.0 (/opt/rustwide/workdir/day5)
[INFO] [stderr]     Checking day1 v0.1.0 (/opt/rustwide/workdir/day1)
[INFO] [stderr]     Checking day4 v0.1.0 (/opt/rustwide/workdir/day4)
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> day2/src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `test::Bencher`
[INFO] [stdout]  --> day2/src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use test::Bencher;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> day1/src/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     io::stdin().read_to_string(&mut input);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let _ = io::stdin().read_to_string(&mut input);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> day5/src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     io::stdin().read_to_string(&mut input);
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let _ = io::stdin().read_to_string(&mut input);
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> day4/src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     io::stdin().read_to_string(&mut input);
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let _ = io::stdin().read_to_string(&mut input);
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> day5/src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     io::stdin().read_to_string(&mut input);
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let _ = io::stdin().read_to_string(&mut input);
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> day4/src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     io::stdin().read_to_string(&mut input);
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let _ = io::stdin().read_to_string(&mut input);
[INFO] [stdout]   |     +++++++
[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 `Result` that must be used
[INFO] [stdout]   --> day1/src/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     io::stdin().read_to_string(&mut input);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let _ = io::stdin().read_to_string(&mut input);
[INFO] [stdout]    |     +++++++
[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 `Result` that must be used
[INFO] [stdout]   --> day2/src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     io::stdin().read_to_string(&mut input);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let _ = io::stdin().read_to_string(&mut input);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> day2/src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     io::stdin().read_to_string(&mut input);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let _ = io::stdin().read_to_string(&mut input);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "b05bbc78ecbe95cf35731d33027b02b7a2a08d67d619ebbd66b5af0bd6925c60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b05bbc78ecbe95cf35731d33027b02b7a2a08d67d619ebbd66b5af0bd6925c60", kill_on_drop: false }`
[INFO] [stdout] b05bbc78ecbe95cf35731d33027b02b7a2a08d67d619ebbd66b5af0bd6925c60