[INFO] fetching crate marching-squares 0.1.1...
[INFO] crate marching-squares 0.1.1 is already in cache
[INFO] crate marching-squares 0.1.1 is already in cache
[INFO] crate marching-squares 0.1.1 is already in cache
[INFO] crate marching-squares 0.1.1 is already in cache
[INFO] crate marching-squares 0.1.1 is already in cache
[INFO] crate marching-squares 0.1.1 is already in cache
[INFO] crate marching-squares 0.1.1 is already in cache
[INFO] crate marching-squares 0.1.1 is already in cache
[INFO] crate marching-squares 0.1.1 is already in cache
[INFO] crate marching-squares 0.1.1 is already in cache
[INFO] crate marching-squares 0.1.1 is already in cache
[INFO] crate marching-squares 0.1.1 is already in cache
[INFO] crate marching-squares 0.1.1 is already in cache
[INFO] crate marching-squares 0.1.1 is already in cache
[INFO] checking marching-squares-0.1.1 against try#7b91cbfbcf4c73b95e666e0f8972d2f7262ce27e for pr-99880
[INFO] extracting crate marching-squares 0.1.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate marching-squares 0.1.1 on toolchain 7b91cbfbcf4c73b95e666e0f8972d2f7262ce27e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b91cbfbcf4c73b95e666e0f8972d2f7262ce27e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate marching-squares 0.1.1
[INFO] finished tweaking crates.io crate marching-squares 0.1.1
[INFO] tweaked toml for crates.io crate marching-squares 0.1.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate marching-squares 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b91cbfbcf4c73b95e666e0f8972d2f7262ce27e" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+7b91cbfbcf4c73b95e666e0f8972d2f7262ce27e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 61d09af64a951bf12b0d539dcf7d0a0713e96ced69f818f47c6fdea211332181
[INFO] running `Command { std: "docker" "start" "-a" "61d09af64a951bf12b0d539dcf7d0a0713e96ced69f818f47c6fdea211332181", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61d09af64a951bf12b0d539dcf7d0a0713e96ced69f818f47c6fdea211332181", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61d09af64a951bf12b0d539dcf7d0a0713e96ced69f818f47c6fdea211332181", kill_on_drop: false }`
[INFO] [stdout] 61d09af64a951bf12b0d539dcf7d0a0713e96ced69f818f47c6fdea211332181
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+7b91cbfbcf4c73b95e666e0f8972d2f7262ce27e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3f5283d11ba557d727978f95d28118e03ee89a9ebcecccc5c69a012c23974be
[INFO] running `Command { std: "docker" "start" "-a" "c3f5283d11ba557d727978f95d28118e03ee89a9ebcecccc5c69a012c23974be", kill_on_drop: false }`
[INFO] [stderr]     Checking marching-squares v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]    --> src/lib.rs:158:6
[INFO] [stdout]     |
[INFO] [stdout] 158 |     (width, height): (usize, usize),
[INFO] [stdout]     |      ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]    --> src/lib.rs:158:13
[INFO] [stdout]     |
[INFO] [stdout] 158 |     (width, height): (usize, usize),
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]    --> src/lib.rs:158:6
[INFO] [stdout]     |
[INFO] [stdout] 158 |     (width, height): (usize, usize),
[INFO] [stdout]     |      ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]    --> src/lib.rs:158:13
[INFO] [stdout]     |
[INFO] [stdout] 158 |     (width, height): (usize, usize),
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "c3f5283d11ba557d727978f95d28118e03ee89a9ebcecccc5c69a012c23974be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3f5283d11ba557d727978f95d28118e03ee89a9ebcecccc5c69a012c23974be", kill_on_drop: false }`
[INFO] [stdout] c3f5283d11ba557d727978f95d28118e03ee89a9ebcecccc5c69a012c23974be