[INFO] cloning repository https://github.com/rben01/advent-of-code-2023
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rben01/advent-of-code-2023" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frben01%2Fadvent-of-code-2023", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frben01%2Fadvent-of-code-2023'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8b248902ba6da5b2a23242f164df0c9358f20057
[INFO] building rben01/advent-of-code-2023 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frben01%2Fadvent-of-code-2023" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rben01/advent-of-code-2023
[INFO] finished tweaking git repo https://github.com/rben01/advent-of-code-2023
[INFO] tweaked toml for git repo https://github.com/rben01/advent-of-code-2023 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rben01/advent-of-code-2023 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rben01/advent-of-code-2023 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c00ab621be7e9210fd5a65a0e8ae51e0f5e4c9f3763dde807d04dab65b5ea95
[INFO] running `Command { std: "docker" "start" "-a" "2c00ab621be7e9210fd5a65a0e8ae51e0f5e4c9f3763dde807d04dab65b5ea95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c00ab621be7e9210fd5a65a0e8ae51e0f5e4c9f3763dde807d04dab65b5ea95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c00ab621be7e9210fd5a65a0e8ae51e0f5e4c9f3763dde807d04dab65b5ea95", kill_on_drop: false }`
[INFO] [stdout] 2c00ab621be7e9210fd5a65a0e8ae51e0f5e4c9f3763dde807d04dab65b5ea95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7e9ffc10b3bab8f7adaa344fce3172e29793dfc66aa3b647279bb9147bdb2de
[INFO] running `Command { std: "docker" "start" "-a" "c7e9ffc10b3bab8f7adaa344fce3172e29793dfc66aa3b647279bb9147bdb2de", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling priority-queue v1.3.2
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling strum v0.25.0
[INFO] [stderr]    Compiling itertools v0.12.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling num-complex v0.4.4
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]    Compiling ndarray v0.15.6
[INFO] [stderr]    Compiling regex v1.10.2
[INFO] [stderr]    Compiling strum_macros v0.25.3
[INFO] [stderr]    Compiling num v0.4.1
[INFO] [stderr]    Compiling advent_of_code_2023 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/day_10/mod.rs:142:7
[INFO] [stdout]     |
[INFO] [stdout] 142 |             if let Some(ri) = ri
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/day_10/mod.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout] 143 |                 && let Some(ci) = ci
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/day_10/mod.rs:144:8
[INFO] [stdout]     |
[INFO] [stdout] 144 |                 && let Tile::Pipe(pipe) = map[[ri, ci]]
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/day_14/mod.rs:140:26
[INFO] [stdout]     |
[INFO] [stdout] 140 |             .filter(|&(_, &tile)| (tile == Tile::Round))
[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] 140 -             .filter(|&(_, &tile)| (tile == Tile::Round))
[INFO] [stdout] 140 +             .filter(|&(_, &tile)| tile == Tile::Round)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:8:2
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let_chains,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `advent_of_code_2023` (lib) due to 3 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "c7e9ffc10b3bab8f7adaa344fce3172e29793dfc66aa3b647279bb9147bdb2de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7e9ffc10b3bab8f7adaa344fce3172e29793dfc66aa3b647279bb9147bdb2de", kill_on_drop: false }`
[INFO] [stdout] c7e9ffc10b3bab8f7adaa344fce3172e29793dfc66aa3b647279bb9147bdb2de