[INFO] cloning repository https://github.com/muneeb-i-khan/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/muneeb-i-khan/Maze-Generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuneeb-i-khan%2FMaze-Generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuneeb-i-khan%2FMaze-Generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e4755f5a160d4f724cfaefc8c42a964bca1a9475
[INFO] checking muneeb-i-khan/Maze-Generator against master#75530e9f72a1990ed2305e16fd51d02f47048f12 for pr-135899
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuneeb-i-khan%2FMaze-Generator" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/muneeb-i-khan/Maze-Generator on toolchain 75530e9f72a1990ed2305e16fd51d02f47048f12
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+75530e9f72a1990ed2305e16fd51d02f47048f12" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/muneeb-i-khan/Maze-Generator
[INFO] finished tweaking git repo https://github.com/muneeb-i-khan/Maze-Generator
[INFO] tweaked toml for git repo https://github.com/muneeb-i-khan/Maze-Generator written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/muneeb-i-khan/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" "+75530e9f72a1990ed2305e16fd51d02f47048f12" "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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:6475c868a6d27846ca172efb246699580b64b57a5b3744ef73949e850a31b38a" "/opt/rustwide/cargo-home/bin/cargo" "+75530e9f72a1990ed2305e16fd51d02f47048f12" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d38a09da766799d554dcac2c71780bb4970d31803b5e68cd3fb16fe5c5b5a7ee
[INFO] running `Command { std: "docker" "start" "-a" "d38a09da766799d554dcac2c71780bb4970d31803b5e68cd3fb16fe5c5b5a7ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d38a09da766799d554dcac2c71780bb4970d31803b5e68cd3fb16fe5c5b5a7ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d38a09da766799d554dcac2c71780bb4970d31803b5e68cd3fb16fe5c5b5a7ee", kill_on_drop: false }`
[INFO] [stdout] d38a09da766799d554dcac2c71780bb4970d31803b5e68cd3fb16fe5c5b5a7ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:6475c868a6d27846ca172efb246699580b64b57a5b3744ef73949e850a31b38a" "/opt/rustwide/cargo-home/bin/cargo" "+75530e9f72a1990ed2305e16fd51d02f47048f12" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5dbf01d7a5599fda0a1c729e3df3502df3835b93ff5f996d8a30f2e28ff8dd37
[INFO] running `Command { std: "docker" "start" "-a" "5dbf01d7a5599fda0a1c729e3df3502df3835b93ff5f996d8a30f2e28ff8dd37", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling sdl2 v0.35.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling sdl2-sys v0.35.2
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking maze v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `curr_pos_x` and `curr_pos_y` are never read
[INFO] [stdout]  --> src/backend/maze.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Maze {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 3 |     pub maze: Vec<Vec<Cell>>,
[INFO] [stdout] 4 |     pub curr_pos_x: u32,
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout] 5 |     pub curr_pos_y: u32,
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `pos_x` and `pos_y` are never read
[INFO] [stdout]  --> src/backend/cell.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Cell {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 3 |     pub pos_x: u32,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout] 4 |     pub pos_y: u32,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Cell` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `curr_pos_x` and `curr_pos_y` are never read
[INFO] [stdout]  --> src/backend/maze.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Maze {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 3 |     pub maze: Vec<Vec<Cell>>,
[INFO] [stdout] 4 |     pub curr_pos_x: u32,
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout] 5 |     pub curr_pos_y: u32,
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `pos_x` and `pos_y` are never read
[INFO] [stdout]  --> src/backend/cell.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Cell {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 3 |     pub pos_x: u32,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout] 4 |     pub pos_y: u32,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Cell` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.74s
[INFO] running `Command { std: "docker" "inspect" "5dbf01d7a5599fda0a1c729e3df3502df3835b93ff5f996d8a30f2e28ff8dd37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dbf01d7a5599fda0a1c729e3df3502df3835b93ff5f996d8a30f2e28ff8dd37", kill_on_drop: false }`
[INFO] [stdout] 5dbf01d7a5599fda0a1c729e3df3502df3835b93ff5f996d8a30f2e28ff8dd37