[INFO] cloning repository https://github.com/hogehiko/rust-dentaku
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hogehiko/rust-dentaku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhogehiko%2Frust-dentaku", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhogehiko%2Frust-dentaku'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 50db995acfe148535f835f0177d29c4708c76b11
[INFO] checking hogehiko/rust-dentaku against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhogehiko%2Frust-dentaku" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hogehiko/rust-dentaku on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hogehiko/rust-dentaku
[INFO] finished tweaking git repo https://github.com/hogehiko/rust-dentaku
[INFO] tweaked toml for git repo https://github.com/hogehiko/rust-dentaku written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/hogehiko/rust-dentaku already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] d3e6cddc7aea8bb77d9ec2bb16e35227aaeaeb076d25d1544565d93f8cfaac70
[INFO] running `Command { std: "docker" "start" "-a" "d3e6cddc7aea8bb77d9ec2bb16e35227aaeaeb076d25d1544565d93f8cfaac70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3e6cddc7aea8bb77d9ec2bb16e35227aaeaeb076d25d1544565d93f8cfaac70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3e6cddc7aea8bb77d9ec2bb16e35227aaeaeb076d25d1544565d93f8cfaac70", kill_on_drop: false }`
[INFO] [stdout] d3e6cddc7aea8bb77d9ec2bb16e35227aaeaeb076d25d1544565d93f8cfaac70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] b52198e8b9dadf88d11198ae99f0435b00fc6f8b4c172218292363796b0c44e2
[INFO] running `Command { std: "docker" "start" "-a" "b52198e8b9dadf88d11198ae99f0435b00fc6f8b4c172218292363796b0c44e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling pest_derive v1.0.7
[INFO] [stderr]     Checking rust-dentaku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `bytes_read`
[INFO] [stdout]   --> src/main.rs:19:16
[INFO] [stdout]    |
[INFO] [stdout] 19 |             Ok(bytes_read) => {
[INFO] [stdout]    |                ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |         x => panic!("Undefined behavior {}",p.as_str())
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes_read`
[INFO] [stdout]   --> src/main.rs:19:16
[INFO] [stdout]    |
[INFO] [stdout] 19 |             Ok(bytes_read) => {
[INFO] [stdout]    |                ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |         x => panic!("Undefined behavior {}",p.as_str())
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[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 6.46s
[INFO] running `Command { std: "docker" "inspect" "b52198e8b9dadf88d11198ae99f0435b00fc6f8b4c172218292363796b0c44e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b52198e8b9dadf88d11198ae99f0435b00fc6f8b4c172218292363796b0c44e2", kill_on_drop: false }`
[INFO] [stdout] b52198e8b9dadf88d11198ae99f0435b00fc6f8b4c172218292363796b0c44e2