Dec 19 16:06:38.903 INFO checking hgallagher1993/Calculator against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 16:06:38.903 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/hgallagher1993/Calculator:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 16:06:39.261 INFO [stdout] 5c47cf6e0a3daff51740e5b289a63555bf4dbe5d76cb5f01194cd6e727a91732
Dec 19 16:06:39.268 INFO running `"docker" "start" "-a" "5c47cf6e0a3daff51740e5b289a63555bf4dbe5d76cb5f01194cd6e727a91732"`
Dec 19 16:06:40.432 INFO [stderr] warning: path `/opt/crater/workdir/src/Calculator.rs` was erroneously implicitly accepted for binary `Calculator`,
Dec 19 16:06:40.432 INFO [stderr] please set bin.path in Cargo.toml
Dec 19 16:06:40.433 INFO [stderr]     Checking Calculator v0.0.1 (/opt/crater/workdir)
Dec 19 16:06:40.596 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 19 16:06:40.596 INFO [stderr]   --> src/Calculator.rs:20:9
Dec 19 16:06:40.596 INFO [stderr]    |
Dec 19 16:06:40.596 INFO [stderr] 20 |       if(flag == false)
Dec 19 16:06:40.596 INFO [stderr]    |         ^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 16:06:40.596 INFO [stderr]    |
Dec 19 16:06:40.596 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 19 16:06:40.596 INFO [stderr] 
Dec 19 16:06:40.596 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 19 16:06:40.596 INFO [stderr]   --> src/Calculator.rs:32:9
Dec 19 16:06:40.596 INFO [stderr]    |
Dec 19 16:06:40.596 INFO [stderr] 32 |       if(operator == '=')
Dec 19 16:06:40.596 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 16:06:40.596 INFO [stderr] 
Dec 19 16:06:40.612 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 19 16:06:40.612 INFO [stderr]   --> src/Calculator.rs:20:9
Dec 19 16:06:40.612 INFO [stderr]    |
Dec 19 16:06:40.612 INFO [stderr] 20 |       if(flag == false)
Dec 19 16:06:40.612 INFO [stderr]    |         ^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 16:06:40.612 INFO [stderr]    |
Dec 19 16:06:40.612 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 19 16:06:40.612 INFO [stderr] 
Dec 19 16:06:40.612 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 19 16:06:40.612 INFO [stderr]   --> src/Calculator.rs:32:9
Dec 19 16:06:40.612 INFO [stderr]    |
Dec 19 16:06:40.612 INFO [stderr] 32 |       if(operator == '=')
Dec 19 16:06:40.612 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 16:06:40.612 INFO [stderr] 
Dec 19 16:06:40.628 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:06:40.628 INFO [stderr]   --> src/Calculator.rs:73:8
Dec 19 16:06:40.628 INFO [stderr]    |
Dec 19 16:06:40.628 INFO [stderr] 73 |    let mut operator: char = operator_string.chars()
Dec 19 16:06:40.628 INFO [stderr]    |        ----^^^^^^^^
Dec 19 16:06:40.628 INFO [stderr]    |        |
Dec 19 16:06:40.628 INFO [stderr]    |        help: remove this `mut`
Dec 19 16:06:40.628 INFO [stderr]    |
Dec 19 16:06:40.628 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 16:06:40.628 INFO [stderr] 
Dec 19 16:06:40.628 INFO [stderr] warning: crate `Calculator` should have a snake case name such as `calculator`
Dec 19 16:06:40.628 INFO [stderr]   |
Dec 19 16:06:40.628 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 19 16:06:40.628 INFO [stderr] 
Dec 19 16:06:40.660 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:06:40.660 INFO [stderr]   --> src/Calculator.rs:73:8
Dec 19 16:06:40.660 INFO [stderr]    |
Dec 19 16:06:40.660 INFO [stderr] 73 |    let mut operator: char = operator_string.chars()
Dec 19 16:06:40.660 INFO [stderr]    |        ----^^^^^^^^
Dec 19 16:06:40.660 INFO [stderr]    |        |
Dec 19 16:06:40.660 INFO [stderr]    |        help: remove this `mut`
Dec 19 16:06:40.660 INFO [stderr]    |
Dec 19 16:06:40.660 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 16:06:40.660 INFO [stderr] 
Dec 19 16:06:40.660 INFO [stderr] warning: crate `Calculator` should have a snake case name such as `calculator`
Dec 19 16:06:40.660 INFO [stderr]   |
Dec 19 16:06:40.660 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 19 16:06:40.660 INFO [stderr] 
Dec 19 16:06:40.697 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
Dec 19 16:06:41.160 INFO running `"docker" "inspect" "5c47cf6e0a3daff51740e5b289a63555bf4dbe5d76cb5f01194cd6e727a91732"`
Dec 19 16:06:41.318 INFO running `"docker" "rm" "-f" "5c47cf6e0a3daff51740e5b289a63555bf4dbe5d76cb5f01194cd6e727a91732"`
Dec 19 16:06:41.475 INFO [stdout] 5c47cf6e0a3daff51740e5b289a63555bf4dbe5d76cb5f01194cd6e727a91732