[INFO] cloning repository https://github.com/qalens/kata-stringcalculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/qalens/kata-stringcalculator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqalens%2Fkata-stringcalculator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqalens%2Fkata-stringcalculator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7c8c06e08a003ed4ed6a2c3eda4a44640c5ff206
[INFO] documenting qalens/kata-stringcalculator against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqalens%2Fkata-stringcalculator" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/qalens/kata-stringcalculator on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/qalens/kata-stringcalculator
[INFO] finished tweaking git repo https://github.com/qalens/kata-stringcalculator
[INFO] tweaked toml for git repo https://github.com/qalens/kata-stringcalculator written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/qalens/kata-stringcalculator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac35b7d3f3f402d85fb8b80417bf807b55b4a7feefc9bf23c27699c5dade3240
[INFO] running `Command { std: "docker" "start" "-a" "ac35b7d3f3f402d85fb8b80417bf807b55b4a7feefc9bf23c27699c5dade3240", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac35b7d3f3f402d85fb8b80417bf807b55b4a7feefc9bf23c27699c5dade3240", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac35b7d3f3f402d85fb8b80417bf807b55b4a7feefc9bf23c27699c5dade3240", kill_on_drop: false }`
[INFO] [stdout] ac35b7d3f3f402d85fb8b80417bf807b55b4a7feefc9bf23c27699c5dade3240
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "RUSTDOCFLAGS=--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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7713cb8cedbe9c523dfdc1bbbadde0414b9a716b73db2881684a440ec233f5e9
[INFO] running `Command { std: "docker" "start" "-a" "7713cb8cedbe9c523dfdc1bbbadde0414b9a716b73db2881684a440ec233f5e9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Documenting stringcalculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/stringcalc.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 |         if(line.starts_with("//") && index == 0){
[INFO] [stdout]    |           ^                                    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -         if(line.starts_with("//") && index == 0){
[INFO] [stdout] 11 +         if line.starts_with("//") && index == 0 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/stringcalc.rs:26:15
[INFO] [stdout]    |
[INFO] [stdout] 26 |             if(val.starts_with('-')){
[INFO] [stdout]    |               ^                    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 26 -             if(val.starts_with('-')){
[INFO] [stdout] 26 +             if val.starts_with('-') {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/stringcalc.rs:36:7
[INFO] [stdout]    |
[INFO] [stdout] 36 |     if(!negatives.is_empty()){
[INFO] [stdout]    |       ^                     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 36 -     if(!negatives.is_empty()){
[INFO] [stdout] 36 +     if !negatives.is_empty() {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `Command { std: "docker" "inspect" "7713cb8cedbe9c523dfdc1bbbadde0414b9a716b73db2881684a440ec233f5e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7713cb8cedbe9c523dfdc1bbbadde0414b9a716b73db2881684a440ec233f5e9", kill_on_drop: false }`
[INFO] [stdout] 7713cb8cedbe9c523dfdc1bbbadde0414b9a716b73db2881684a440ec233f5e9