[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 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohan-su%2Fsafe_calculator" "/workspace/builds/worker-56/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-56/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Johan-su/safe_calculator on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-56/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" "+1.60.0" "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-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84a6b5689b4189382f2510c91498768282c6bb96523880fcf096b1c960f93bc8
[INFO] running `Command { std: "docker" "start" "-a" "84a6b5689b4189382f2510c91498768282c6bb96523880fcf096b1c960f93bc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84a6b5689b4189382f2510c91498768282c6bb96523880fcf096b1c960f93bc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84a6b5689b4189382f2510c91498768282c6bb96523880fcf096b1c960f93bc8", kill_on_drop: false }`
[INFO] [stdout] 84a6b5689b4189382f2510c91498768282c6bb96523880fcf096b1c960f93bc8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1606fe28e901a9284e5bdd8457d5909dbe5eff52d4158bc448df3c5d19d6b4b
[INFO] running `Command { std: "docker" "start" "-a" "c1606fe28e901a9284e5bdd8457d5909dbe5eff52d4158bc448df3c5d19d6b4b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.33s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c1606fe28e901a9284e5bdd8457d5909dbe5eff52d4158bc448df3c5d19d6b4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1606fe28e901a9284e5bdd8457d5909dbe5eff52d4158bc448df3c5d19d6b4b", kill_on_drop: false }`
[INFO] [stdout] c1606fe28e901a9284e5bdd8457d5909dbe5eff52d4158bc448df3c5d19d6b4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f1e5a67732d2b884f9d6c3b1729a15fbba83984046e80822f4e976b7bb4b227
[INFO] running `Command { std: "docker" "start" "-a" "0f1e5a67732d2b884f9d6c3b1729a15fbba83984046e80822f4e976b7bb4b227", 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 0.49s
[INFO] running `Command { std: "docker" "inspect" "0f1e5a67732d2b884f9d6c3b1729a15fbba83984046e80822f4e976b7bb4b227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f1e5a67732d2b884f9d6c3b1729a15fbba83984046e80822f4e976b7bb4b227", kill_on_drop: false }`
[INFO] [stdout] 0f1e5a67732d2b884f9d6c3b1729a15fbba83984046e80822f4e976b7bb4b227
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c9ecf004d571420bc233aca312936635cccb51fc55e50547535d251d41e168ee
[INFO] running `Command { std: "docker" "start" "-a" "c9ecf004d571420bc233aca312936635cccb51fc55e50547535d251d41e168ee", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stdout] 
[INFO] [stderr]   --> src/main.rs:42:15
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 42 |             if(!line.is_err())
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |               ^              ^
[INFO] [stdout] 
[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 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/calculator-b1556672f6df7b60)
[INFO] running `Command { std: "docker" "inspect" "c9ecf004d571420bc233aca312936635cccb51fc55e50547535d251d41e168ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9ecf004d571420bc233aca312936635cccb51fc55e50547535d251d41e168ee", kill_on_drop: false }`
[INFO] [stdout] c9ecf004d571420bc233aca312936635cccb51fc55e50547535d251d41e168ee