[INFO] cloning repository https://github.com/atsushi130/perceptron
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/atsushi130/perceptron" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fatsushi130%2Fperceptron", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fatsushi130%2Fperceptron'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] faa5fe3c75986bcab83ca02d6551b0a4ddca9c3c
[INFO] checking atsushi130/perceptron against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fatsushi130%2Fperceptron" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/atsushi130/perceptron 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/atsushi130/perceptron
[INFO] finished tweaking git repo https://github.com/atsushi130/perceptron
[INFO] tweaked toml for git repo https://github.com/atsushi130/perceptron written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/atsushi130/perceptron 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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/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] db0867f7fa27e65705ba6620cbe6e28e08ac0964d6a1c40d9a4d446174409072
[INFO] running `Command { std: "docker" "start" "-a" "db0867f7fa27e65705ba6620cbe6e28e08ac0964d6a1c40d9a4d446174409072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db0867f7fa27e65705ba6620cbe6e28e08ac0964d6a1c40d9a4d446174409072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db0867f7fa27e65705ba6620cbe6e28e08ac0964d6a1c40d9a4d446174409072", kill_on_drop: false }`
[INFO] [stdout] db0867f7fa27e65705ba6620cbe6e28e08ac0964d6a1c40d9a4d446174409072
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22116e0bb2874765a125d3a36beed9961eecdf5785353dea3b673991079de4ff
[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" "22116e0bb2874765a125d3a36beed9961eecdf5785353dea3b673991079de4ff", kill_on_drop: false }`
[INFO] [stderr]     Checking perceptron v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/learner/perceptron/perceptron.rs:64:19
[INFO] [stdout]    |
[INFO] [stdout] 64 |         self.sign((x as f64))
[INFO] [stdout]    |                   ^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/learner/perceptron/perceptron.rs:64:19
[INFO] [stdout]    |
[INFO] [stdout] 64 |         self.sign((x as f64))
[INFO] [stdout]    |                   ^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/file_operator/file_operator.rs:45:70
[INFO] [stdout]    |
[INFO] [stdout] 45 |             Err(error) => panic!("Couldn't open {}: {}", &self.path, Error::description(&error))
[INFO] [stdout]    |                                                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/file_operator/file_operator.rs:52:71
[INFO] [stdout]    |
[INFO] [stdout] 52 |             Err(error) => panic!("Not found line result. Reason: {}", Error::description(&error))
[INFO] [stdout]    |                                                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right`: superseded by `trim_end`
[INFO] [stdout]   --> src/file_operator/parser/tsv_parser.rs:11:37
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let splits: Vec<_> = string.trim_right().split('\t').collect();
[INFO] [stdout]    |                                     ^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/file_operator/file_operator.rs:45:70
[INFO] [stdout]    |
[INFO] [stdout] 45 |             Err(error) => panic!("Couldn't open {}: {}", &self.path, Error::description(&error))
[INFO] [stdout]    |                                                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/file_operator/file_operator.rs:52:71
[INFO] [stdout]    |
[INFO] [stdout] 52 |             Err(error) => panic!("Not found line result. Reason: {}", Error::description(&error))
[INFO] [stdout]    |                                                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right`: superseded by `trim_end`
[INFO] [stdout]   --> src/file_operator/parser/tsv_parser.rs:11:37
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let splits: Vec<_> = string.trim_right().split('\t').collect();
[INFO] [stdout]    |                                     ^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "22116e0bb2874765a125d3a36beed9961eecdf5785353dea3b673991079de4ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22116e0bb2874765a125d3a36beed9961eecdf5785353dea3b673991079de4ff", kill_on_drop: false }`
[INFO] [stdout] 22116e0bb2874765a125d3a36beed9961eecdf5785353dea3b673991079de4ff