[INFO] cloning repository https://github.com/Corwinpro/leetcode_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Corwinpro/leetcode_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCorwinpro%2Fleetcode_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCorwinpro%2Fleetcode_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f02b9e114bfc2860ee0f32e1391a857746986659
[INFO] checking Corwinpro/leetcode_rust against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCorwinpro%2Fleetcode_rust" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Corwinpro/leetcode_rust
[INFO] finished tweaking git repo https://github.com/Corwinpro/leetcode_rust
[INFO] tweaked toml for git repo https://github.com/Corwinpro/leetcode_rust written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Corwinpro/leetcode_rust on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Corwinpro/leetcode_rust 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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a01f64dce34af11c21e7fc251f0a3531c36f9c2b71ccc18d3b92a69aa7f56d8a
[INFO] running `Command { std: "docker" "start" "-a" "a01f64dce34af11c21e7fc251f0a3531c36f9c2b71ccc18d3b92a69aa7f56d8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a01f64dce34af11c21e7fc251f0a3531c36f9c2b71ccc18d3b92a69aa7f56d8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a01f64dce34af11c21e7fc251f0a3531c36f9c2b71ccc18d3b92a69aa7f56d8a", kill_on_drop: false }`
[INFO] [stdout] a01f64dce34af11c21e7fc251f0a3531c36f9c2b71ccc18d3b92a69aa7f56d8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4ee0c7e16da6d54e270840e7366af163568276e05a89bd0807546c53ee162ce
[INFO] running `Command { std: "docker" "start" "-a" "d4ee0c7e16da6d54e270840e7366af163568276e05a89bd0807546c53ee162ce", kill_on_drop: false }`
[INFO] [stderr]     Checking leetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/s0058_last_word_length.rs:11:22
[INFO] [stdout]    |
[INFO] [stdout] 11 |             .map(|c| (if c == ' ' { 0 } else { 1 }))
[INFO] [stdout]    |                      ^                            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -             .map(|c| (if c == ' ' { 0 } else { 1 }))
[INFO] [stdout] 11 +             .map(|c| if c == ' ' { 0 } else { 1 } )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/s0058_last_word_length.rs:11:22
[INFO] [stdout]    |
[INFO] [stdout] 11 |             .map(|c| (if c == ' ' { 0 } else { 1 }))
[INFO] [stdout]    |                      ^                            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -             .map(|c| (if c == ' ' { 0 } else { 1 }))
[INFO] [stdout] 11 +             .map(|c| if c == ' ' { 0 } else { 1 } )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `LinkedList` is never constructed
[INFO] [stdout]  --> src/snippets/linked_list.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct LinkedList<T> {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]   = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leetcode` (bin "leetcode") due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d4ee0c7e16da6d54e270840e7366af163568276e05a89bd0807546c53ee162ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4ee0c7e16da6d54e270840e7366af163568276e05a89bd0807546c53ee162ce", kill_on_drop: false }`
[INFO] [stdout] d4ee0c7e16da6d54e270840e7366af163568276e05a89bd0807546c53ee162ce
