[INFO] cloning repository https://github.com/FractalArt/AdventOfCode2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FractalArt/AdventOfCode2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFractalArt%2FAdventOfCode2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFractalArt%2FAdventOfCode2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a208044ab3177f126ff33ccb465600aa148dc4bd
[INFO] checking FractalArt/AdventOfCode2020/a208044ab3177f126ff33ccb465600aa148dc4bd against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFractalArt%2FAdventOfCode2020" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FractalArt/AdventOfCode2020 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FractalArt/AdventOfCode2020
[INFO] finished tweaking git repo https://github.com/FractalArt/AdventOfCode2020
[INFO] tweaked toml for git repo https://github.com/FractalArt/AdventOfCode2020 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/FractalArt/AdventOfCode2020 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f8821ca1ac7b34e65315c80c59721ce3007bb3b2dd6750a1d9b287149e2a3f7
[INFO] running `Command { std: "docker" "start" "-a" "9f8821ca1ac7b34e65315c80c59721ce3007bb3b2dd6750a1d9b287149e2a3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f8821ca1ac7b34e65315c80c59721ce3007bb3b2dd6750a1d9b287149e2a3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f8821ca1ac7b34e65315c80c59721ce3007bb3b2dd6750a1d9b287149e2a3f7", kill_on_drop: false }`
[INFO] [stdout] 9f8821ca1ac7b34e65315c80c59721ce3007bb3b2dd6750a1d9b287149e2a3f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail_expr_drop_order" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fccbfc04a597e4562f3f221d38168764be6b9939f69ec1914f35f39f64800228
[INFO] running `Command { std: "docker" "start" "-a" "fccbfc04a597e4562f3f221d38168764be6b9939f69ec1914f35f39f64800228", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling ndarray v0.14.0
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking aoc2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/day_7.rs:64:50
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn extract_color_contents<'a>(rule: &'a str) -> (&str, BagCounts<'a>) {
[INFO] [stdout]    |                           --                     ^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           lifetime `'a` declared here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/day_7.rs:64:50
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn extract_color_contents<'a>(rule: &'a str) -> (&str, BagCounts<'a>) {
[INFO] [stdout]    |                           --                     ^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           lifetime `'a` declared here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(elided_named_lifetimes)]` 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.90s
[INFO] running `Command { std: "docker" "inspect" "fccbfc04a597e4562f3f221d38168764be6b9939f69ec1914f35f39f64800228", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fccbfc04a597e4562f3f221d38168764be6b9939f69ec1914f35f39f64800228", kill_on_drop: false }`
[INFO] [stdout] fccbfc04a597e4562f3f221d38168764be6b9939f69ec1914f35f39f64800228