[INFO] cloning repository https://github.com/sergii-s/rust-dojo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sergii-s/rust-dojo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsergii-s%2Frust-dojo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsergii-s%2Frust-dojo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 852124f06bc22423f346b3bc1eac2daf208c7808
[INFO] checking sergii-s/rust-dojo against try#55b3f428b4fac6790b1e8492e0b91ff2d80aec7c for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsergii-s%2Frust-dojo" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sergii-s/rust-dojo on toolchain 55b3f428b4fac6790b1e8492e0b91ff2d80aec7c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sergii-s/rust-dojo
[INFO] finished tweaking git repo https://github.com/sergii-s/rust-dojo
[INFO] tweaked toml for git repo https://github.com/sergii-s/rust-dojo written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/sergii-s/rust-dojo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 41d41a9335ff94947ce3da37e4e62569e06af50fe80a43fe48269183a979a475
[INFO] running `Command { std: "docker" "start" "-a" "41d41a9335ff94947ce3da37e4e62569e06af50fe80a43fe48269183a979a475", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41d41a9335ff94947ce3da37e4e62569e06af50fe80a43fe48269183a979a475", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41d41a9335ff94947ce3da37e4e62569e06af50fe80a43fe48269183a979a475", kill_on_drop: false }`
[INFO] [stdout] 41d41a9335ff94947ce3da37e4e62569e06af50fe80a43fe48269183a979a475
[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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9a2445ae85cf36d0ee31677e53539eed558943d8bbe6f3743fd784dd8440a37
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a9a2445ae85cf36d0ee31677e53539eed558943d8bbe6f3743fd784dd8440a37", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-dojo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/rover.rs:54:63
[INFO] [stdout]    |
[INFO] [stdout] 54 |             let move_count: i32 = move_count.parse().map_err(|e| "not valid number")?;
[INFO] [stdout]    |                                                               ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/rover.rs:54:63
[INFO] [stdout]    |
[INFO] [stdout] 54 |             let move_count: i32 = move_count.parse().map_err(|e| "not valid number")?;
[INFO] [stdout]    |                                                               ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "a9a2445ae85cf36d0ee31677e53539eed558943d8bbe6f3743fd784dd8440a37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9a2445ae85cf36d0ee31677e53539eed558943d8bbe6f3743fd784dd8440a37", kill_on_drop: false }`
[INFO] [stdout] a9a2445ae85cf36d0ee31677e53539eed558943d8bbe6f3743fd784dd8440a37