[INFO] cloning repository https://github.com/EliKor/rust_stuff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/EliKor/rust_stuff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEliKor%2Frust_stuff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEliKor%2Frust_stuff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c8aa6b49d96ac6ae2bef310f3f8233255492ed47
[INFO] checking EliKor/rust_stuff against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEliKor%2Frust_stuff" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/EliKor/rust_stuff on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/EliKor/rust_stuff
[INFO] finished tweaking git repo https://github.com/EliKor/rust_stuff
[INFO] tweaked toml for git repo https://github.com/EliKor/rust_stuff written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/EliKor/rust_stuff already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 80b9c8e206e906821e35c36260abd72aaeda3555ad4d83ed702d0ace21cdfdcb
[INFO] running `Command { std: "docker" "start" "-a" "80b9c8e206e906821e35c36260abd72aaeda3555ad4d83ed702d0ace21cdfdcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80b9c8e206e906821e35c36260abd72aaeda3555ad4d83ed702d0ace21cdfdcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80b9c8e206e906821e35c36260abd72aaeda3555ad4d83ed702d0ace21cdfdcb", kill_on_drop: false }`
[INFO] [stdout] 80b9c8e206e906821e35c36260abd72aaeda3555ad4d83ed702d0ace21cdfdcb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a42be91fa7ca7630df51591893614e27a004ffa926449f691048a8c4a3414962
[INFO] running `Command { std: "docker" "start" "-a" "a42be91fa7ca7630df51591893614e27a004ffa926449f691048a8c4a3414962", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_stuff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `val`
[INFO] [stdout]  --> src/binary_tree_path.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     val: u32,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `left`
[INFO] [stdout]  --> src/binary_tree_path.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     left: Option<Box<TreeNode>>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `right`
[INFO] [stdout]  --> src/binary_tree_path.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     right: Option<Box<TreeNode>>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/binary_tree_path.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn new(val: u32, left: Option<Box<TreeNode>>, right: Option<Box<TreeNode>>) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `longest_path`
[INFO] [stdout]   --> src/binary_tree_path.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn longest_path(root: Option<Box<TreeNode>>, max_len: &mut u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `median`
[INFO] [stdout]  --> src/median_list.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub median: Option<u32>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `min_heap`
[INFO] [stdout]  --> src/median_list.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     min_heap: BinaryHeap<Reverse<u32>>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `max_heap`
[INFO] [stdout]  --> src/median_list.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     max_heap: BinaryHeap<u32>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/median_list.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert`
[INFO] [stdout]   --> src/median_list.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn insert(&mut self, x: u32) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_median`
[INFO] [stdout]   --> src/median_list.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn get_median(&self) -> Option<f32> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `val`
[INFO] [stdout]  --> src/binary_tree_path.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     val: u32,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "a42be91fa7ca7630df51591893614e27a004ffa926449f691048a8c4a3414962", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a42be91fa7ca7630df51591893614e27a004ffa926449f691048a8c4a3414962", kill_on_drop: false }`
[INFO] [stdout] a42be91fa7ca7630df51591893614e27a004ffa926449f691048a8c4a3414962