[INFO] cloning repository https://github.com/an-Iceberg/rust_maze_generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/an-Iceberg/rust_maze_generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fan-Iceberg%2Frust_maze_generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fan-Iceberg%2Frust_maze_generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b12edbc8de898715928ea4627d451a613b6e13a
[INFO] checking an-Iceberg/rust_maze_generator against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fan-Iceberg%2Frust_maze_generator" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/an-Iceberg/rust_maze_generator
[INFO] finished tweaking git repo https://github.com/an-Iceberg/rust_maze_generator
[INFO] tweaked toml for git repo https://github.com/an-Iceberg/rust_maze_generator written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/an-Iceberg/rust_maze_generator on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/an-Iceberg/rust_maze_generator 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf5f2d1271c267c4703067ec08f8f551bf9a7af2c571c99e287bd1bc33a3da74
[INFO] running `Command { std: "docker" "start" "-a" "bf5f2d1271c267c4703067ec08f8f551bf9a7af2c571c99e287bd1bc33a3da74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf5f2d1271c267c4703067ec08f8f551bf9a7af2c571c99e287bd1bc33a3da74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf5f2d1271c267c4703067ec08f8f551bf9a7af2c571c99e287bd1bc33a3da74", kill_on_drop: false }`
[INFO] [stdout] bf5f2d1271c267c4703067ec08f8f551bf9a7af2c571c99e287bd1bc33a3da74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00f937222ce64928fa7f520cee6ab4f732138439c1a820ad0b8686ce6be80600
[INFO] running `Command { std: "docker" "start" "-a" "00f937222ce64928fa7f520cee6ab4f732138439c1a820ad0b8686ce6be80600", kill_on_drop: false }`
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[INFO] [stderr]     Checking maze_generator v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/maze.rs:1:46
[INFO] [stdout]   |
[INFO] [stdout] 1 | use macroquad::{color::{Color, LIME}, rand::{self, gen_range}, shapes::draw_rectangle, window::clear_background};
[INFO] [stdout]   |                                              ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/maze.rs:1:46
[INFO] [stdout]   |
[INFO] [stdout] 1 | use macroquad::{color::{Color, LIME}, rand::{self, gen_range}, shapes::draw_rectangle, window::clear_background};
[INFO] [stdout]   |                                              ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_cell_unvisited`, `step_kruskal`, and `step_wilson` are never used
[INFO] [stdout]    --> src/maze.rs:193:10
[INFO] [stdout]     |
[INFO] [stdout] 164 | impl Maze
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 193 |   pub fn is_cell_unvisited(&self, coords: (usize, usize)) -> bool
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 362 |   pub(crate) fn step_kruskal(&mut self) -> bool
[INFO] [stdout]     |                 ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 418 |   pub(crate) fn step_wilson(&mut self) -> bool
[INFO] [stdout]     |                 ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_cell_unvisited`, `step_kruskal`, and `step_wilson` are never used
[INFO] [stdout]    --> src/maze.rs:193:10
[INFO] [stdout]     |
[INFO] [stdout] 164 | impl Maze
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 193 |   pub fn is_cell_unvisited(&self, coords: (usize, usize)) -> bool
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 362 |   pub(crate) fn step_kruskal(&mut self) -> bool
[INFO] [stdout]     |                 ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 418 |   pub(crate) fn step_wilson(&mut self) -> bool
[INFO] [stdout]     |                 ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.30s
[INFO] running `Command { std: "docker" "inspect" "00f937222ce64928fa7f520cee6ab4f732138439c1a820ad0b8686ce6be80600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00f937222ce64928fa7f520cee6ab4f732138439c1a820ad0b8686ce6be80600", kill_on_drop: false }`
[INFO] [stdout] 00f937222ce64928fa7f520cee6ab4f732138439c1a820ad0b8686ce6be80600