[INFO] cloning repository https://github.com/hgallagher1993/Calculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hgallagher1993/Calculator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhgallagher1993%2FCalculator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhgallagher1993%2FCalculator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d9a503417e94bb8d5beef654147b5cf798d55c40
[INFO] checking hgallagher1993/Calculator against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhgallagher1993%2FCalculator" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hgallagher1993/Calculator on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hgallagher1993/Calculator
[INFO] finished tweaking git repo https://github.com/hgallagher1993/Calculator
[INFO] tweaked toml for git repo https://github.com/hgallagher1993/Calculator written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/hgallagher1993/Calculator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: path `/workspace/builds/worker-15/source/src/Calculator.rs` was erroneously implicitly accepted for binary `Calculator`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16c4f53e0da7c05966f372ff8efd42a6a4f6c47b4155adddfd803e79c2047eb6
[INFO] running `Command { std: "docker" "start" "-a" "16c4f53e0da7c05966f372ff8efd42a6a4f6c47b4155adddfd803e79c2047eb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16c4f53e0da7c05966f372ff8efd42a6a4f6c47b4155adddfd803e79c2047eb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16c4f53e0da7c05966f372ff8efd42a6a4f6c47b4155adddfd803e79c2047eb6", kill_on_drop: false }`
[INFO] [stdout] 16c4f53e0da7c05966f372ff8efd42a6a4f6c47b4155adddfd803e79c2047eb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 223a71b090b192e710467012ac2caa82302b5c46fc1b84a8e0579a926b57b6d0
[INFO] running `Command { std: "docker" "start" "-a" "223a71b090b192e710467012ac2caa82302b5c46fc1b84a8e0579a926b57b6d0", kill_on_drop: false }`
[INFO] [stderr] warning: path `/opt/rustwide/workdir/src/Calculator.rs` was erroneously implicitly accepted for binary `Calculator`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] [stderr]     Checking Calculator v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/Calculator.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |       if(flag == false)
[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 `if` condition
[INFO] [stdout]   --> src/Calculator.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |       if(operator == '=')
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/Calculator.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |       if(flag == false)
[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 `if` condition
[INFO] [stdout]   --> src/Calculator.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |       if(operator == '=')
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Calculator.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 |    let mut operator: char = operator_string.chars()
[INFO] [stdout]    |        ----^^^^^^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Calculator` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `calculator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Calculator.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 |    let mut operator: char = operator_string.chars()
[INFO] [stdout]    |        ----^^^^^^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Calculator` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `calculator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "223a71b090b192e710467012ac2caa82302b5c46fc1b84a8e0579a926b57b6d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "223a71b090b192e710467012ac2caa82302b5c46fc1b84a8e0579a926b57b6d0", kill_on_drop: false }`
[INFO] [stdout] 223a71b090b192e710467012ac2caa82302b5c46fc1b84a8e0579a926b57b6d0