[INFO] cloning repository https://github.com/Johan-su/safe_calculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Johan-su/safe_calculator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohan-su%2Fsafe_calculator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohan-su%2Fsafe_calculator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b28208a91980424b0f90feac8e619436411ccf05
[INFO] testing Johan-su/safe_calculator against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohan-su%2Fsafe_calculator" "/workspace/builds/worker-32/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-32/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Johan-su/safe_calculator 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/Johan-su/safe_calculator
[INFO] finished tweaking git repo https://github.com/Johan-su/safe_calculator
[INFO] tweaked toml for git repo https://github.com/Johan-su/safe_calculator written to /workspace/builds/worker-32/source/Cargo.toml
[INFO] crate git repo https://github.com/Johan-su/safe_calculator 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-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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] a28355f1675acd342ade4314e297d3733a354f5fd4505691268bbcfe067e7431
[INFO] running `Command { std: "docker" "start" "-a" "a28355f1675acd342ade4314e297d3733a354f5fd4505691268bbcfe067e7431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a28355f1675acd342ade4314e297d3733a354f5fd4505691268bbcfe067e7431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a28355f1675acd342ade4314e297d3733a354f5fd4505691268bbcfe067e7431", kill_on_drop: false }`
[INFO] [stdout] a28355f1675acd342ade4314e297d3733a354f5fd4505691268bbcfe067e7431
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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] 5d58278cebc5b94cdc2618beaee7a64840a87cbabcf3b1b0c6374443aa6d9fd0
[INFO] running `Command { std: "docker" "start" "-a" "5d58278cebc5b94cdc2618beaee7a64840a87cbabcf3b1b0c6374443aa6d9fd0", kill_on_drop: false }`
[INFO] [stderr]    Compiling calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:42:15
[INFO] [stdout]    |
[INFO] [stdout] 42 |             if(!line.is_err())
[INFO] [stdout]    |               ^              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 42 -             if(!line.is_err())
[INFO] [stdout] 42 +             if !line.is_err()
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:83:11
[INFO] [stdout]    |
[INFO] [stdout] 83 |         if(!s.trim().parse::<f32>().is_err())
[INFO] [stdout]    |           ^                                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 83 -         if(!s.trim().parse::<f32>().is_err())
[INFO] [stdout] 83 +         if !s.trim().parse::<f32>().is_err()
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.04s
[INFO] running `Command { std: "docker" "inspect" "5d58278cebc5b94cdc2618beaee7a64840a87cbabcf3b1b0c6374443aa6d9fd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d58278cebc5b94cdc2618beaee7a64840a87cbabcf3b1b0c6374443aa6d9fd0", kill_on_drop: false }`
[INFO] [stdout] 5d58278cebc5b94cdc2618beaee7a64840a87cbabcf3b1b0c6374443aa6d9fd0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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] 75668ff02e779487f5dcf26af892c2d8ed280326168d4c77634e2e449949fa60
[INFO] running `Command { std: "docker" "start" "-a" "75668ff02e779487f5dcf26af892c2d8ed280326168d4c77634e2e449949fa60", kill_on_drop: false }`
[INFO] [stderr]    Compiling calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:42:15
[INFO] [stdout]    |
[INFO] [stdout] 42 |             if(!line.is_err())
[INFO] [stdout]    |               ^              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 42 -             if(!line.is_err())
[INFO] [stdout] 42 +             if !line.is_err()
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:83:11
[INFO] [stdout]    |
[INFO] [stdout] 83 |         if(!s.trim().parse::<f32>().is_err())
[INFO] [stdout]    |           ^                                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 83 -         if(!s.trim().parse::<f32>().is_err())
[INFO] [stdout] 83 +         if !s.trim().parse::<f32>().is_err()
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "75668ff02e779487f5dcf26af892c2d8ed280326168d4c77634e2e449949fa60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75668ff02e779487f5dcf26af892c2d8ed280326168d4c77634e2e449949fa60", kill_on_drop: false }`
[INFO] [stdout] 75668ff02e779487f5dcf26af892c2d8ed280326168d4c77634e2e449949fa60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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] 945eeaa978cc06a2821b3850811a41e5dc3f28ada160f831fa875c01aca43fa3
[INFO] running `Command { std: "docker" "start" "-a" "945eeaa978cc06a2821b3850811a41e5dc3f28ada160f831fa875c01aca43fa3", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:42:15
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 42 |             if(!line.is_err())
[INFO] [stdout] 
[INFO] [stderr]    |               ^              ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 42 -             if(!line.is_err())
[INFO] [stderr] 42 +             if !line.is_err()
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:83:11
[INFO] [stderr]    |
[INFO] [stderr] 83 |         if(!s.trim().parse::<f32>().is_err())
[INFO] [stderr]    |           ^                                 ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 83 -         if(!s.trim().parse::<f32>().is_err())
[INFO] [stderr] 83 +         if !s.trim().parse::<f32>().is_err()
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: `calculator` (bin "calculator" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/calculator-db6a95ebc5337dd7)
[INFO] running `Command { std: "docker" "inspect" "945eeaa978cc06a2821b3850811a41e5dc3f28ada160f831fa875c01aca43fa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "945eeaa978cc06a2821b3850811a41e5dc3f28ada160f831fa875c01aca43fa3", kill_on_drop: false }`
[INFO] [stdout] 945eeaa978cc06a2821b3850811a41e5dc3f28ada160f831fa875c01aca43fa3