[INFO] cloning repository https://github.com/linnar/aoc2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/linnar/aoc2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flinnar%2Faoc2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flinnar%2Faoc2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1c97a16346c4f9b24b962af3cf43c8604f1a3477
[INFO] checking linnar/aoc2020 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flinnar%2Faoc2020" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/linnar/aoc2020 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/linnar/aoc2020
[INFO] finished tweaking git repo https://github.com/linnar/aoc2020
[INFO] tweaked toml for git repo https://github.com/linnar/aoc2020 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/linnar/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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 403ee55ac354403fa48bbc2d76b58e9d2e18361d6f654c42fe37d5beb58135b3
[INFO] running `Command { std: "docker" "start" "-a" "403ee55ac354403fa48bbc2d76b58e9d2e18361d6f654c42fe37d5beb58135b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "403ee55ac354403fa48bbc2d76b58e9d2e18361d6f654c42fe37d5beb58135b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "403ee55ac354403fa48bbc2d76b58e9d2e18361d6f654c42fe37d5beb58135b3", kill_on_drop: false }`
[INFO] [stdout] 403ee55ac354403fa48bbc2d76b58e9d2e18361d6f654c42fe37d5beb58135b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1808a27a88f22643745a8d3fe7ff866162504205c8e51b79d4b9d3a8c6f05df9
[INFO] running `Command { std: "docker" "start" "-a" "1808a27a88f22643745a8d3fe7ff866162504205c8e51b79d4b9d3a8c6f05df9", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking d18 v0.1.0 (/opt/rustwide/workdir/d18)
[INFO] [stderr]     Checking d10 v0.1.0 (/opt/rustwide/workdir/d10)
[INFO] [stderr]     Checking d01 v0.1.0 (/opt/rustwide/workdir/d01)
[INFO] [stderr]     Checking d09 v0.1.0 (/opt/rustwide/workdir/d09)
[INFO] [stderr]     Checking d08 v0.1.0 (/opt/rustwide/workdir/d08)
[INFO] [stderr]     Checking d12 v0.1.0 (/opt/rustwide/workdir/d12)
[INFO] [stderr]     Checking d13 v0.1.0 (/opt/rustwide/workdir/d13)
[INFO] [stderr]     Checking d15 v0.1.0 (/opt/rustwide/workdir/d15)
[INFO] [stderr]     Checking d02 v0.1.0 (/opt/rustwide/workdir/d02)
[INFO] [stderr]     Checking d05 v0.1.0 (/opt/rustwide/workdir/d05)
[INFO] [stderr]     Checking d11 v0.1.0 (/opt/rustwide/workdir/d11)
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking d21 v0.1.0 (/opt/rustwide/workdir/d21)
[INFO] [stderr]     Checking d20 v0.1.0 (/opt/rustwide/workdir/d20)
[INFO] [stderr]     Checking aoc2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking d06 v0.1.0 (/opt/rustwide/workdir/d06)
[INFO] [stderr]     Checking d19 v0.1.0 (/opt/rustwide/workdir/d19)
[INFO] [stderr]     Checking d04 v0.1.0 (/opt/rustwide/workdir/d04)
[INFO] [stderr]     Checking d03 v0.1.0 (/opt/rustwide/workdir/d03)
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]  --> d20/src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Tile {
[INFO] [stdout]   |        ---- field in this struct
[INFO] [stdout] 6 |     id: i32,
[INFO] [stdout] 7 |     data: Vec<String>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Tile` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking d17 v0.1.0 (/opt/rustwide/workdir/d17)
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> d20/src/main.rs:41:27
[INFO] [stdout]    |
[INFO] [stdout] 41 |             let rev = edge.clone().chars().rev().collect::<String>();
[INFO] [stdout]    |                           ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]  --> d20/src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Tile {
[INFO] [stdout]   |        ---- field in this struct
[INFO] [stdout] 6 |     id: i32,
[INFO] [stdout] 7 |     data: Vec<String>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Tile` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> d20/src/main.rs:41:27
[INFO] [stdout]    |
[INFO] [stdout] 41 |             let rev = edge.clone().chars().rev().collect::<String>();
[INFO] [stdout]    |                           ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking d07 v0.1.0 (/opt/rustwide/workdir/d07)
[INFO] [stderr]     Checking d16 v0.1.0 (/opt/rustwide/workdir/d16)
[INFO] [stderr]     Checking d14 v0.1.0 (/opt/rustwide/workdir/d14)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.63s
[INFO] running `Command { std: "docker" "inspect" "1808a27a88f22643745a8d3fe7ff866162504205c8e51b79d4b9d3a8c6f05df9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1808a27a88f22643745a8d3fe7ff866162504205c8e51b79d4b9d3a8c6f05df9", kill_on_drop: false }`
[INFO] [stdout] 1808a27a88f22643745a8d3fe7ff866162504205c8e51b79d4b9d3a8c6f05df9