[INFO] cloning repository https://github.com/dotrungkien/rust-guessing-game
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dotrungkien/rust-guessing-game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdotrungkien%2Frust-guessing-game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdotrungkien%2Frust-guessing-game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3dfbcf67c7449bb53baa8df5800c11f1dd42fa95
[INFO] testing dotrungkien/rust-guessing-game against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdotrungkien%2Frust-guessing-game" "/workspace/builds/worker-112/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-112/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dotrungkien/rust-guessing-game on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dotrungkien/rust-guessing-game
[INFO] finished tweaking git repo https://github.com/dotrungkien/rust-guessing-game
[INFO] tweaked toml for git repo https://github.com/dotrungkien/rust-guessing-game written to /workspace/builds/worker-112/source/Cargo.toml
[INFO] crate git repo https://github.com/dotrungkien/rust-guessing-game already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8cbafcf90d5da7bfc818fca2959f6147209a67d466b06ce7fcc93f22438d27b
[INFO] running `Command { std: "docker" "start" "-a" "d8cbafcf90d5da7bfc818fca2959f6147209a67d466b06ce7fcc93f22438d27b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8cbafcf90d5da7bfc818fca2959f6147209a67d466b06ce7fcc93f22438d27b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8cbafcf90d5da7bfc818fca2959f6147209a67d466b06ce7fcc93f22438d27b", kill_on_drop: false }`
[INFO] [stdout] d8cbafcf90d5da7bfc818fca2959f6147209a67d466b06ce7fcc93f22438d27b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e71d9b1b38d2b4713762fed49310012cf8c18e6828dfb695f026f89c7484505e
[INFO] running `Command { std: "docker" "start" "-a" "e71d9b1b38d2b4713762fed49310012cf8c18e6828dfb695f026f89c7484505e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling guessing-game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/main.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 |             .read_line((&mut guess))
[INFO] [stdout]    |                        ^          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 15 -             .read_line((&mut guess))
[INFO] [stdout] 15 +             .read_line(&mut guess)
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.10s
[INFO] running `Command { std: "docker" "inspect" "e71d9b1b38d2b4713762fed49310012cf8c18e6828dfb695f026f89c7484505e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e71d9b1b38d2b4713762fed49310012cf8c18e6828dfb695f026f89c7484505e", kill_on_drop: false }`
[INFO] [stdout] e71d9b1b38d2b4713762fed49310012cf8c18e6828dfb695f026f89c7484505e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee22ebc281d02b752385f213641cd71579df84be88b232d06edd09bd0cd49fe4
[INFO] running `Command { std: "docker" "start" "-a" "ee22ebc281d02b752385f213641cd71579df84be88b232d06edd09bd0cd49fe4", kill_on_drop: false }`
[INFO] [stderr]    Compiling guessing-game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/main.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 |             .read_line((&mut guess))
[INFO] [stdout]    |                        ^          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 15 -             .read_line((&mut guess))
[INFO] [stdout] 15 +             .read_line(&mut guess)
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "ee22ebc281d02b752385f213641cd71579df84be88b232d06edd09bd0cd49fe4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee22ebc281d02b752385f213641cd71579df84be88b232d06edd09bd0cd49fe4", kill_on_drop: false }`
[INFO] [stdout] ee22ebc281d02b752385f213641cd71579df84be88b232d06edd09bd0cd49fe4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 69bf4ea62196ab44a21e22aa64a7cedb1a04d3c2d4c27dc3462283b7f7f1e913
[INFO] running `Command { std: "docker" "start" "-a" "69bf4ea62196ab44a21e22aa64a7cedb1a04d3c2d4c27dc3462283b7f7f1e913", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/main.rs:15:24
[INFO] [stderr]    |
[INFO] [stderr] 15 |             .read_line((&mut guess))
[INFO] [stderr]    |                        ^          ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 15 -             .read_line((&mut guess))
[INFO] [stderr] 15 +             .read_line(&mut guess)
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: `guessing-game` (bin "guessing-game" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/guessing_game-ba5b067bdbad439c)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "69bf4ea62196ab44a21e22aa64a7cedb1a04d3c2d4c27dc3462283b7f7f1e913", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69bf4ea62196ab44a21e22aa64a7cedb1a04d3c2d4c27dc3462283b7f7f1e913", kill_on_drop: false }`
[INFO] [stdout] 69bf4ea62196ab44a21e22aa64a7cedb1a04d3c2d4c27dc3462283b7f7f1e913