[INFO] cloning repository https://github.com/Ahmed-Ansari02/Rust_binary_tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ahmed-Ansari02/Rust_binary_tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAhmed-Ansari02%2FRust_binary_tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAhmed-Ansari02%2FRust_binary_tree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8324b1cc0b45b504cc7546c1c08007ae9c1bd3e0
[INFO] checking Ahmed-Ansari02/Rust_binary_tree against try#1c4199da70f816f2239f41c55168ff75a3663718 for pr-155499
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAhmed-Ansari02%2FRust_binary_tree" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Ahmed-Ansari02/Rust_binary_tree
[INFO] finished tweaking git repo https://github.com/Ahmed-Ansari02/Rust_binary_tree
[INFO] tweaked toml for git repo https://github.com/Ahmed-Ansari02/Rust_binary_tree written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Ahmed-Ansari02/Rust_binary_tree on toolchain 1c4199da70f816f2239f41c55168ff75a3663718
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1c4199da70f816f2239f41c55168ff75a3663718" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Ahmed-Ansari02/Rust_binary_tree 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" "+1c4199da70f816f2239f41c55168ff75a3663718" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+1c4199da70f816f2239f41c55168ff75a3663718" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1319a24cf631125ec797c7f703cdbe31b8a63b3050d7b06fe60604f7b08674f
[INFO] running `Command { std: "docker" "start" "-a" "b1319a24cf631125ec797c7f703cdbe31b8a63b3050d7b06fe60604f7b08674f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1319a24cf631125ec797c7f703cdbe31b8a63b3050d7b06fe60604f7b08674f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1319a24cf631125ec797c7f703cdbe31b8a63b3050d7b06fe60604f7b08674f", kill_on_drop: false }`
[INFO] [stdout] b1319a24cf631125ec797c7f703cdbe31b8a63b3050d7b06fe60604f7b08674f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+1c4199da70f816f2239f41c55168ff75a3663718" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d502a27079e9a459de0bd480d938aabfd0236a9a307990d8936bb4f84c7ea6b
[INFO] running `Command { std: "docker" "start" "-a" "7d502a27079e9a459de0bd480d938aabfd0236a9a307990d8936bb4f84c7ea6b", kill_on_drop: false }`
[INFO] [stderr]     Checking binary_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let mut curr_node = self;
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let mut curr_node = self;
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get` is never used
[INFO] [stdout]   --> src/main.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl<T: PartialEq + PartialOrd + Display> Node<T> {
[INFO] [stdout]    | ------------------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn get(&self, data: T) -> Option<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get` is never used
[INFO] [stdout]   --> src/main.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl<T: PartialEq + PartialOrd + Display> Node<T> {
[INFO] [stdout]    | ------------------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn get(&self, data: T) -> Option<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "7d502a27079e9a459de0bd480d938aabfd0236a9a307990d8936bb4f84c7ea6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d502a27079e9a459de0bd480d938aabfd0236a9a307990d8936bb4f84c7ea6b", kill_on_drop: false }`
[INFO] [stdout] 7d502a27079e9a459de0bd480d938aabfd0236a9a307990d8936bb4f84c7ea6b
