[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#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[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 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c284988964f94fb778b28baeac2efdfcb9a40916f504fcb5f13abeb4ef89f7c3
[INFO] running `Command { std: "docker" "start" "-a" "c284988964f94fb778b28baeac2efdfcb9a40916f504fcb5f13abeb4ef89f7c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c284988964f94fb778b28baeac2efdfcb9a40916f504fcb5f13abeb4ef89f7c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c284988964f94fb778b28baeac2efdfcb9a40916f504fcb5f13abeb4ef89f7c3", kill_on_drop: false }`
[INFO] [stdout] c284988964f94fb778b28baeac2efdfcb9a40916f504fcb5f13abeb4ef89f7c3
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93c10ccf254b92e85670ac62e1d62a55be15028e715c31896e2068c732a4f33c
[INFO] running `Command { std: "docker" "start" "-a" "93c10ccf254b92e85670ac62e1d62a55be15028e715c31896e2068c732a4f33c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling sdl2 v0.35.2
[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: 2 warnings emitted
[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] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.80s
[INFO] running `Command { std: "docker" "inspect" "93c10ccf254b92e85670ac62e1d62a55be15028e715c31896e2068c732a4f33c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93c10ccf254b92e85670ac62e1d62a55be15028e715c31896e2068c732a4f33c", kill_on_drop: false }`
[INFO] [stdout] 93c10ccf254b92e85670ac62e1d62a55be15028e715c31896e2068c732a4f33c
[INFO] checking muneeb-i-khan/Maze-Generator against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuneeb-i-khan%2FMaze-Generator" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/muneeb-i-khan/Maze-Generator on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af766ea31d9f8dbc90d4c0361ffb10ca804739c388d1cb3d65d2da372d2b42bf
[INFO] running `Command { std: "docker" "start" "-a" "af766ea31d9f8dbc90d4c0361ffb10ca804739c388d1cb3d65d2da372d2b42bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af766ea31d9f8dbc90d4c0361ffb10ca804739c388d1cb3d65d2da372d2b42bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af766ea31d9f8dbc90d4c0361ffb10ca804739c388d1cb3d65d2da372d2b42bf", kill_on_drop: false }`
[INFO] [stdout] af766ea31d9f8dbc90d4c0361ffb10ca804739c388d1cb3d65d2da372d2b42bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4309597a1989fc1896ba72e940c0feeb060620d1fb446849e2ff04e2321a6194
[INFO] running `Command { std: "docker" "start" "-a" "4309597a1989fc1896ba72e940c0feeb060620d1fb446849e2ff04e2321a6194", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling sdl2 v0.35.2
[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: 2 warnings emitted
[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] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.87s
[INFO] running `Command { std: "docker" "inspect" "4309597a1989fc1896ba72e940c0feeb060620d1fb446849e2ff04e2321a6194", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4309597a1989fc1896ba72e940c0feeb060620d1fb446849e2ff04e2321a6194", kill_on_drop: false }`
[INFO] [stdout] 4309597a1989fc1896ba72e940c0feeb060620d1fb446849e2ff04e2321a6194