[INFO] fetching crate towerofhanoi 0.1.0...
[INFO] checking towerofhanoi-0.1.0 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate towerofhanoi 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate towerofhanoi 0.1.0
[INFO] finished tweaking crates.io crate towerofhanoi 0.1.0
[INFO] tweaked toml for crates.io crate towerofhanoi 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate towerofhanoi 0.1.0 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate towerofhanoi 0.1.0 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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b95f8c66151ea2e9fa1d67a1ecda77f45e8126ede3f7201f35d2493e49afdd4
[INFO] running `Command { std: "docker" "start" "-a" "6b95f8c66151ea2e9fa1d67a1ecda77f45e8126ede3f7201f35d2493e49afdd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b95f8c66151ea2e9fa1d67a1ecda77f45e8126ede3f7201f35d2493e49afdd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b95f8c66151ea2e9fa1d67a1ecda77f45e8126ede3f7201f35d2493e49afdd4", kill_on_drop: false }`
[INFO] [stdout] 6b95f8c66151ea2e9fa1d67a1ecda77f45e8126ede3f7201f35d2493e49afdd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 610871dc3ee745b5a9ed87a86757cab2095cba2f2627235ae26e9dc8f892437e
[INFO] running `Command { std: "docker" "start" "-a" "610871dc3ee745b5a9ed87a86757cab2095cba2f2627235ae26e9dc8f892437e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling rustix v0.37.28
[INFO] [stderr]     Checking colored v2.2.0
[INFO] [stderr]     Checking io-lifetimes v1.0.11
[INFO] [stderr]     Checking terminal_size v0.2.6
[INFO] [stderr]     Checking towerofhanoi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `tower_width`
[INFO] [stdout]    --> src/main.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     let tower_width = (max_size * 2 - 1) as usize + 2; // +2 for the spaces around each disk
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tower_width`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `highlight`
[INFO] [stdout]    --> src/main.rs:100:83
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn draw_towers(towers: &[Vec<u32>], max_size: u32, move_count: u32, elapsed: u64, highlight: Option<(usize, usize)>) {
[INFO] [stdout]     |                                                                                   ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_highlight`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TOWER_HEIGHT` is never used
[INFO] [stdout]  --> src/main.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const TOWER_HEIGHT: usize = 12;
[INFO] [stdout]   |       ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BORDER_TOP_LEFT` is never used
[INFO] [stdout]  --> src/main.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const BORDER_TOP_LEFT: &str = "╔";
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BORDER_TOP_RIGHT` is never used
[INFO] [stdout]   --> src/main.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const BORDER_TOP_RIGHT: &str = "╗";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BORDER_BOTTOM_LEFT` is never used
[INFO] [stdout]   --> src/main.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const BORDER_BOTTOM_LEFT: &str = "╚";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BORDER_BOTTOM_RIGHT` is never used
[INFO] [stdout]   --> src/main.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const BORDER_BOTTOM_RIGHT: &str = "╝";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BORDER_HORIZONTAL` is never used
[INFO] [stdout]   --> src/main.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const BORDER_HORIZONTAL: &str = "═";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BORDER_VERTICAL` is never used
[INFO] [stdout]   --> src/main.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const BORDER_VERTICAL: &str = "║";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BORDER_TOWER_SEP` is never used
[INFO] [stdout]   --> src/main.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const BORDER_TOWER_SEP: &str = "╬";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BASE_CHAR` is never used
[INFO] [stdout]   --> src/main.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const BASE_CHAR: &str = "▄";
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DISPLAY_WIDTH` is never used
[INFO] [stdout]   --> src/main.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const DISPLAY_WIDTH: usize = 80; // For centering
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_hanoi` is never used
[INFO] [stdout]    --> src/main.rs:211:4
[INFO] [stdout]     |
[INFO] [stdout] 211 | fn solve_hanoi(
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tower_width`
[INFO] [stdout]    --> src/main.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     let tower_width = (max_size * 2 - 1) as usize + 2; // +2 for the spaces around each disk
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tower_width`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `highlight`
[INFO] [stdout]    --> src/main.rs:100:83
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn draw_towers(towers: &[Vec<u32>], max_size: u32, move_count: u32, elapsed: u64, highlight: Option<(usize, usize)>) {
[INFO] [stdout]     |                                                                                   ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_highlight`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TOWER_HEIGHT` is never used
[INFO] [stdout]  --> src/main.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const TOWER_HEIGHT: usize = 12;
[INFO] [stdout]   |       ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BORDER_TOP_LEFT` is never used
[INFO] [stdout]  --> src/main.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const BORDER_TOP_LEFT: &str = "╔";
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BORDER_TOP_RIGHT` is never used
[INFO] [stdout]   --> src/main.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const BORDER_TOP_RIGHT: &str = "╗";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BORDER_BOTTOM_LEFT` is never used
[INFO] [stdout]   --> src/main.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const BORDER_BOTTOM_LEFT: &str = "╚";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BORDER_BOTTOM_RIGHT` is never used
[INFO] [stdout]   --> src/main.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const BORDER_BOTTOM_RIGHT: &str = "╝";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BORDER_HORIZONTAL` is never used
[INFO] [stdout]   --> src/main.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const BORDER_HORIZONTAL: &str = "═";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BORDER_VERTICAL` is never used
[INFO] [stdout]   --> src/main.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const BORDER_VERTICAL: &str = "║";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BORDER_TOWER_SEP` is never used
[INFO] [stdout]   --> src/main.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const BORDER_TOWER_SEP: &str = "╬";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BASE_CHAR` is never used
[INFO] [stdout]   --> src/main.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const BASE_CHAR: &str = "▄";
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DISPLAY_WIDTH` is never used
[INFO] [stdout]   --> src/main.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const DISPLAY_WIDTH: usize = 80; // For centering
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_hanoi` is never used
[INFO] [stdout]    --> src/main.rs:211:4
[INFO] [stdout]     |
[INFO] [stdout] 211 | fn solve_hanoi(
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.34s
[INFO] running `Command { std: "docker" "inspect" "610871dc3ee745b5a9ed87a86757cab2095cba2f2627235ae26e9dc8f892437e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "610871dc3ee745b5a9ed87a86757cab2095cba2f2627235ae26e9dc8f892437e", kill_on_drop: false }`
[INFO] [stdout] 610871dc3ee745b5a9ed87a86757cab2095cba2f2627235ae26e9dc8f892437e