[INFO] cloning repository https://github.com/gursharan4312/rust_calculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gursharan4312/rust_calculator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgursharan4312%2Frust_calculator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgursharan4312%2Frust_calculator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a424dcc4922db4250bf8f516b53740597fdc66ed
[INFO] checking gursharan4312/rust_calculator against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgursharan4312%2Frust_calculator" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gursharan4312/rust_calculator on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gursharan4312/rust_calculator
[INFO] finished tweaking git repo https://github.com/gursharan4312/rust_calculator
[INFO] tweaked toml for git repo https://github.com/gursharan4312/rust_calculator written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/gursharan4312/rust_calculator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 830d593c6fcb0f24d9dc824289e49fe1d1a7875b693ddde8d8e56678899e7e02
[INFO] running `Command { std: "docker" "start" "-a" "830d593c6fcb0f24d9dc824289e49fe1d1a7875b693ddde8d8e56678899e7e02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "830d593c6fcb0f24d9dc824289e49fe1d1a7875b693ddde8d8e56678899e7e02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "830d593c6fcb0f24d9dc824289e49fe1d1a7875b693ddde8d8e56678899e7e02", kill_on_drop: false }`
[INFO] [stdout] 830d593c6fcb0f24d9dc824289e49fe1d1a7875b693ddde8d8e56678899e7e02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ced678e9ca7205038b3710202be34449c5f2f63cb645654f7d28240b5be5ea52
[INFO] running `Command { std: "docker" "start" "-a" "ced678e9ca7205038b3710202be34449c5f2f63cb645654f7d28240b5be5ea52", kill_on_drop: false }`
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[INFO] [stderr]    Compiling cairo-sys-rs v0.16.3
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[INFO] [stderr]    Compiling gdk-sys v0.16.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.16.3
[INFO] [stderr]    Compiling gtk-sys v0.16.0
[INFO] [stderr]    Compiling pangocairo-sys v0.16.3
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[INFO] [stderr]     Checking cairo-rs v0.16.7
[INFO] [stderr]     Checking atk v0.16.0
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[INFO] [stderr]     Checking rust_calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:28:11
[INFO] [stdout]    |
[INFO] [stdout] 28 |         if(data.operator != '\0'){
[INFO] [stdout]    |           ^                     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 28 -         if(data.operator != '\0'){
[INFO] [stdout] 28 +         if data.operator != '\0' {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:28:11
[INFO] [stdout]    |
[INFO] [stdout] 28 |         if(data.operator != '\0'){
[INFO] [stdout]    |           ^                     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 28 -         if(data.operator != '\0'){
[INFO] [stdout] 28 +         if data.operator != '\0' {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:37:11
[INFO] [stdout]    |
[INFO] [stdout] 37 |         if(data.operator != '\0'){
[INFO] [stdout]    |           ^                     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 37 -         if(data.operator != '\0'){
[INFO] [stdout] 37 +         if data.operator != '\0' {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:46:11
[INFO] [stdout]    |
[INFO] [stdout] 46 |         if(data.operator != '\0'){
[INFO] [stdout]    |           ^                     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 46 -         if(data.operator != '\0'){
[INFO] [stdout] 46 +         if data.operator != '\0' {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:55:11
[INFO] [stdout]    |
[INFO] [stdout] 55 |         if(data.operator != '\0'){
[INFO] [stdout]    |           ^                     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 55 -         if(data.operator != '\0'){
[INFO] [stdout] 55 +         if data.operator != '\0' {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:37:11
[INFO] [stdout]    |
[INFO] [stdout] 37 |         if(data.operator != '\0'){
[INFO] [stdout]    |           ^                     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 37 -         if(data.operator != '\0'){
[INFO] [stdout] 37 +         if data.operator != '\0' {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:64:11
[INFO] [stdout]    |
[INFO] [stdout] 64 |         if(data.operator != '\0'){
[INFO] [stdout]    |           ^                     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 64 -         if(data.operator != '\0'){
[INFO] [stdout] 64 +         if data.operator != '\0' {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:46:11
[INFO] [stdout]    |
[INFO] [stdout] 46 |         if(data.operator != '\0'){
[INFO] [stdout]    |           ^                     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 46 -         if(data.operator != '\0'){
[INFO] [stdout] 46 +         if data.operator != '\0' {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:114:11
[INFO] [stdout]     |
[INFO] [stdout] 114 |         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout]     |           ^^                                        ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 114 -         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout] 114 +         if data.num == "0" && data.operator == '\0' {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:55:11
[INFO] [stdout]    |
[INFO] [stdout] 55 |         if(data.operator != '\0'){
[INFO] [stdout]    |           ^                     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 55 -         if(data.operator != '\0'){
[INFO] [stdout] 55 +         if data.operator != '\0' {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:123:11
[INFO] [stdout]     |
[INFO] [stdout] 123 |         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout]     |           ^^                                        ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 123 -         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout] 123 +         if data.num == "0" && data.operator == '\0' {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:64:11
[INFO] [stdout]    |
[INFO] [stdout] 64 |         if(data.operator != '\0'){
[INFO] [stdout]    |           ^                     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 64 -         if(data.operator != '\0'){
[INFO] [stdout] 64 +         if data.operator != '\0' {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:114:11
[INFO] [stdout]     |
[INFO] [stdout] 114 |         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout]     |           ^^                                        ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 114 -         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout] 114 +         if data.num == "0" && data.operator == '\0' {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:131:11
[INFO] [stdout]     |
[INFO] [stdout] 131 |         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout]     |           ^^                                        ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 131 -         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout] 131 +         if data.num == "0" && data.operator == '\0' {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:123:11
[INFO] [stdout]     |
[INFO] [stdout] 123 |         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout]     |           ^^                                        ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 123 -         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout] 123 +         if data.num == "0" && data.operator == '\0' {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:139:11
[INFO] [stdout]     |
[INFO] [stdout] 139 |         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout]     |           ^^                                        ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 139 -         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout] 139 +         if data.num == "0" && data.operator == '\0' {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:131:11
[INFO] [stdout]     |
[INFO] [stdout] 131 |         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout]     |           ^^                                        ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 131 -         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout] 131 +         if data.num == "0" && data.operator == '\0' {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:147:11
[INFO] [stdout]     |
[INFO] [stdout] 147 |         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout]     |           ^^                                        ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 147 -         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout] 147 +         if data.num == "0" && data.operator == '\0' {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:155:11
[INFO] [stdout]     |
[INFO] [stdout] 155 |         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout]     |           ^^                                        ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 155 -         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout] 155 +         if data.num == "0" && data.operator == '\0' {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:139:11
[INFO] [stdout]     |
[INFO] [stdout] 139 |         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout]     |           ^^                                        ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 139 -         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout] 139 +         if data.num == "0" && data.operator == '\0' {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:147:11
[INFO] [stdout]     |
[INFO] [stdout] 147 |         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout]     |           ^^                                        ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 147 -         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout] 147 +         if data.num == "0" && data.operator == '\0' {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:163:11
[INFO] [stdout]     |
[INFO] [stdout] 163 |         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout]     |           ^^                                        ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 163 -         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout] 163 +         if data.num == "0" && data.operator == '\0' {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:155:11
[INFO] [stdout]     |
[INFO] [stdout] 155 |         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout]     |           ^^                                        ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 155 -         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout] 155 +         if data.num == "0" && data.operator == '\0' {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:171:11
[INFO] [stdout]     |
[INFO] [stdout] 171 |         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout]     |           ^^                                        ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 171 -         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout] 171 +         if data.num == "0" && data.operator == '\0' {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:163:11
[INFO] [stdout]     |
[INFO] [stdout] 163 |         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout]     |           ^^                                        ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 163 -         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout] 163 +         if data.num == "0" && data.operator == '\0' {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:179:11
[INFO] [stdout]     |
[INFO] [stdout] 179 |         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout]     |           ^^                                        ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 179 -         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout] 179 +         if data.num == "0" && data.operator == '\0' {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:171:11
[INFO] [stdout]     |
[INFO] [stdout] 171 |         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout]     |           ^^                                        ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 171 -         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout] 171 +         if data.num == "0" && data.operator == '\0' {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:179:11
[INFO] [stdout]     |
[INFO] [stdout] 179 |         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout]     |           ^^                                        ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 179 -         if( data.num == "0" && data.operator == '\0' ){
[INFO] [stdout] 179 +         if data.num == "0" && data.operator == '\0' {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 35.96s
[INFO] running `Command { std: "docker" "inspect" "ced678e9ca7205038b3710202be34449c5f2f63cb645654f7d28240b5be5ea52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ced678e9ca7205038b3710202be34449c5f2f63cb645654f7d28240b5be5ea52", kill_on_drop: false }`
[INFO] [stdout] ced678e9ca7205038b3710202be34449c5f2f63cb645654f7d28240b5be5ea52