[INFO] cloning repository https://github.com/Leonardo176/Algorithms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Leonardo176/Algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeonardo176%2FAlgorithms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeonardo176%2FAlgorithms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c3470d26b307d81ef5eb86011554d442dc40de08
[INFO] checking Leonardo176/Algorithms against try#b98202ad067d72e45cec8be3d5c15d86ef0fd086 for pr-155193
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeonardo176%2FAlgorithms" "/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/Leonardo176/Algorithms
[INFO] finished tweaking git repo https://github.com/Leonardo176/Algorithms
[INFO] tweaked toml for git repo https://github.com/Leonardo176/Algorithms written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Leonardo176/Algorithms on toolchain b98202ad067d72e45cec8be3d5c15d86ef0fd086
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b98202ad067d72e45cec8be3d5c15d86ef0fd086" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Leonardo176/Algorithms 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" "+b98202ad067d72e45cec8be3d5c15d86ef0fd086" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+b98202ad067d72e45cec8be3d5c15d86ef0fd086" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9684e6b09b46c888d410227248d9254d22ee4ee287a3f752ddea69fe66f6dce3
[INFO] running `Command { std: "docker" "start" "-a" "9684e6b09b46c888d410227248d9254d22ee4ee287a3f752ddea69fe66f6dce3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9684e6b09b46c888d410227248d9254d22ee4ee287a3f752ddea69fe66f6dce3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9684e6b09b46c888d410227248d9254d22ee4ee287a3f752ddea69fe66f6dce3", kill_on_drop: false }`
[INFO] [stdout] 9684e6b09b46c888d410227248d9254d22ee4ee287a3f752ddea69fe66f6dce3
[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" "+b98202ad067d72e45cec8be3d5c15d86ef0fd086" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae78049bb1796b3bc96a19638353609b45b19b533b375f29eda41c22044a2979
[INFO] running `Command { std: "docker" "start" "-a" "ae78049bb1796b3bc96a19638353609b45b19b533b375f29eda41c22044a2979", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]     Checking getrandom v0.3.3
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `shift` is never used
[INFO] [stdout]  --> src/challenge.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn shift(v: &mut Vec<char>, i: usize) {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `swap` is never used
[INFO] [stdout]   --> src/challenge.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn swap(v: &mut Vec<char>, i1: usize, i2: usize) {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reverse` is never used
[INFO] [stdout]   --> src/challenge.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn reverse(v: &mut Vec<char>, i1: usize, i2: usize) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `BstNode` is never used
[INFO] [stdout]   --> src/trees/bstnode.rs:19:11
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub trait BstNode<T: Ord + Clone>: BstBaseNode<T> + BstMMPSNode<T> + BstSearchNode<T> {}
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `max` and `predecessor` are never used
[INFO] [stdout]   --> src/trees/bstnode/mmps.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub trait BstMMPSNode<T: Ord + Clone>: BstBaseNode<T> {
[INFO] [stdout]    |           ----------- associated functions in this trait
[INFO] [stdout] ...
[INFO] [stdout] 16 |     fn max(node: Link<Self>) -> Link<Self> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn predecessor(node: Link<Self>) -> Link<Self> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rbt` is never constructed
[INFO] [stdout]  --> src/trees/rbt.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Rbt<T: Ord + Clone> {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `search`, and `in_order` are never used
[INFO] [stdout]   --> src/trees/rbt.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl<T: Ord + Clone> Rbt<T> {
[INFO] [stdout]    | --------------------------- associated items in this implementation
[INFO] [stdout] 11 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn search(&self, key: &T) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn in_order(&self) -> Vec<T> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Link` is never used
[INFO] [stdout]  --> src/trees/rbt/node.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub type Link<T> = Option<Rc<RefCell<Node<T>>>>;
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `WeakLink` is never used
[INFO] [stdout]  --> src/trees/rbt/node.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub type WeakLink<T> = Weak<RefCell<Node<T>>>;
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Color` is never used
[INFO] [stdout]  --> src/trees/rbt/node.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | enum Color {
[INFO] [stdout]   |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]   --> src/trees/rbt/node.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Node<T: Ord + Clone> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shift` is never used
[INFO] [stdout]  --> src/challenge.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn shift(v: &mut Vec<char>, i: usize) {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `swap` is never used
[INFO] [stdout]   --> src/challenge.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn swap(v: &mut Vec<char>, i1: usize, i2: usize) {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reverse` is never used
[INFO] [stdout]   --> src/challenge.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn reverse(v: &mut Vec<char>, i1: usize, i2: usize) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `BstNode` is never used
[INFO] [stdout]   --> src/trees/bstnode.rs:19:11
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub trait BstNode<T: Ord + Clone>: BstBaseNode<T> + BstMMPSNode<T> + BstSearchNode<T> {}
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `max` and `predecessor` are never used
[INFO] [stdout]   --> src/trees/bstnode/mmps.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub trait BstMMPSNode<T: Ord + Clone>: BstBaseNode<T> {
[INFO] [stdout]    |           ----------- associated functions in this trait
[INFO] [stdout] ...
[INFO] [stdout] 16 |     fn max(node: Link<Self>) -> Link<Self> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn predecessor(node: Link<Self>) -> Link<Self> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rbt` is never constructed
[INFO] [stdout]  --> src/trees/rbt.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Rbt<T: Ord + Clone> {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `search`, and `in_order` are never used
[INFO] [stdout]   --> src/trees/rbt.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl<T: Ord + Clone> Rbt<T> {
[INFO] [stdout]    | --------------------------- associated items in this implementation
[INFO] [stdout] 11 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn search(&self, key: &T) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn in_order(&self) -> Vec<T> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Link` is never used
[INFO] [stdout]  --> src/trees/rbt/node.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub type Link<T> = Option<Rc<RefCell<Node<T>>>>;
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `WeakLink` is never used
[INFO] [stdout]  --> src/trees/rbt/node.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub type WeakLink<T> = Weak<RefCell<Node<T>>>;
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Color` is never used
[INFO] [stdout]  --> src/trees/rbt/node.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | enum Color {
[INFO] [stdout]   |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]   --> src/trees/rbt/node.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Node<T: Ord + Clone> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.78s
[INFO] running `Command { std: "docker" "inspect" "ae78049bb1796b3bc96a19638353609b45b19b533b375f29eda41c22044a2979", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae78049bb1796b3bc96a19638353609b45b19b533b375f29eda41c22044a2979", kill_on_drop: false }`
[INFO] [stdout] ae78049bb1796b3bc96a19638353609b45b19b533b375f29eda41c22044a2979
