[INFO] cloning repository https://github.com/3mber666/Btree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/3mber666/Btree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F3mber666%2FBtree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F3mber666%2FBtree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f90c23736e32c4fd461ff223e9d770d3720cf0c7
[INFO] linting 3mber666/Btree against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F3mber666%2FBtree" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/3mber666/Btree
[INFO] finished tweaking git repo https://github.com/3mber666/Btree
[INFO] tweaked toml for git repo https://github.com/3mber666/Btree written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/3mber666/Btree on toolchain nightly
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/3mber666/Btree 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" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 32426d59f4d2486fe1b005df39e0dec89595ee918a39052c5b5bda8ac8bfb560
[INFO] running `Command { std: "docker" "start" "-a" "32426d59f4d2486fe1b005df39e0dec89595ee918a39052c5b5bda8ac8bfb560", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32426d59f4d2486fe1b005df39e0dec89595ee918a39052c5b5bda8ac8bfb560", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32426d59f4d2486fe1b005df39e0dec89595ee918a39052c5b5bda8ac8bfb560", kill_on_drop: false }`
[INFO] [stdout] 32426d59f4d2486fe1b005df39e0dec89595ee918a39052c5b5bda8ac8bfb560
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1419b88ed0e474999f90053984686d66d5f7c910d85648e37953cbeb27c0d2b4
[INFO] running `Command { std: "docker" "start" "-a" "1419b88ed0e474999f90053984686d66d5f7c910d85648e37953cbeb27c0d2b4", kill_on_drop: false }`
[INFO] [stderr]     Checking balance_rotate_btrees v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `PartialEq` and `PartialOrd`
[INFO] [stdout]  --> src/main.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cmp::{PartialEq, PartialOrd}};
[INFO] [stdout]   |                 ^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `PartialEq` and `PartialOrd`
[INFO] [stdout]  --> src/main.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cmp::{PartialEq, PartialOrd}};
[INFO] [stdout]   |                 ^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Btree` is never constructed
[INFO] [stdout]  --> src/main.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Btree<T: Ord> {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]   --> src/main.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Node<T: Ord> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tree` is never constructed
[INFO] [stdout]   --> src/main.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct Tree<T: Ord>(Option<Box<Node<T>>>);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert`, `to_sorted_vector`, and `search_node` are never used
[INFO] [stdout]   --> src/main.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl<T: Ord> Btree<T> {
[INFO] [stdout]    | --------------------- associated items in this implementation
[INFO] [stdout] 24 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn insert(&mut self, payload: T) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     fn to_sorted_vector(self) -> Vec<T> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     fn search_node(self, target: T) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/main.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl<T: Ord> Node<T> {
[INFO] [stdout]    | -------------------- associated function in this implementation
[INFO] [stdout] 42 |     fn new(payload: T) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `insert`, `to_sorted_vector`, and `search_node` are never used
[INFO] [stdout]   --> src/main.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | impl<T: Ord> Tree<T> {
[INFO] [stdout]    | -------------------- methods in this implementation
[INFO] [stdout] 62 |
[INFO] [stdout] 63 |     fn insert(&mut self, payload: T) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     fn to_sorted_vector(self) -> Vec<T> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90 |     fn search_node(self, target: T) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods with the following characteristics: (`to_*` and `self` type is not `Copy`) usually take `self` by reference
[INFO] [stdout]   --> src/main.rs:32:25
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn to_sorted_vector(self) -> Vec<T> {
[INFO] [stdout]    |                         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider choosing a less ambiguous name
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stdout]    = note: `#[warn(clippy::wrong_self_convention)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods with the following characteristics: (`to_*` and `self` type is not `Copy`) usually take `self` by reference
[INFO] [stdout]   --> src/main.rs:77:25
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn to_sorted_vector(self) -> Vec<T> {
[INFO] [stdout]    |                         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider choosing a less ambiguous name
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returning the result of a `let` binding from a block
[INFO] [stdout]   --> src/main.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let isTrue = self.to_sorted_vector().contains(&target);
[INFO] [stdout]    |         ------------------------------------------------------- unnecessary `let` binding
[INFO] [stdout] 92 |         isTrue
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stdout]    = note: `#[warn(clippy::let_and_return)]` on by default
[INFO] [stdout] help: return the expression directly
[INFO] [stdout]    |
[INFO] [stdout] 91 ~         
[INFO] [stdout] 92 ~         self.to_sorted_vector().contains(&target)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `isTrue` should have a snake case name
[INFO] [stdout]   --> src/main.rs:91:13
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let isTrue = self.to_sorted_vector().contains(&target);
[INFO] [stdout]    |             ^^^^^^ help: convert the identifier to snake case: `is_true`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods with the following characteristics: (`to_*` and `self` type is not `Copy`) usually take `self` by reference
[INFO] [stdout]   --> src/main.rs:32:25
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn to_sorted_vector(self) -> Vec<T> {
[INFO] [stdout]    |                         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider choosing a less ambiguous name
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stdout]    = note: `#[warn(clippy::wrong_self_convention)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods with the following characteristics: (`to_*` and `self` type is not `Copy`) usually take `self` by reference
[INFO] [stdout]   --> src/main.rs:77:25
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn to_sorted_vector(self) -> Vec<T> {
[INFO] [stdout]    |                         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider choosing a less ambiguous name
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returning the result of a `let` binding from a block
[INFO] [stdout]   --> src/main.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let isTrue = self.to_sorted_vector().contains(&target);
[INFO] [stdout]    |         ------------------------------------------------------- unnecessary `let` binding
[INFO] [stdout] 92 |         isTrue
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stdout]    = note: `#[warn(clippy::let_and_return)]` on by default
[INFO] [stdout] help: return the expression directly
[INFO] [stdout]    |
[INFO] [stdout] 91 ~         
[INFO] [stdout] 92 ~         self.to_sorted_vector().contains(&target)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> src/main.rs:122:5
[INFO] [stdout]     |
[INFO] [stdout] 122 |     assert_eq!(root.search_node(5), true);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout]     = note: `#[warn(clippy::bool_assert_comparison)]` on by default
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 122 -     assert_eq!(root.search_node(5), true);
[INFO] [stdout] 122 +     assert!(root.search_node(5));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/main.rs:135:38
[INFO] [stdout]     |
[INFO] [stdout] 135 |     assert_eq!(root.search_node(99), !true);
[INFO] [stdout]     |                                      ^^^^^ help: try: `false`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]     = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `isTrue` should have a snake case name
[INFO] [stdout]   --> src/main.rs:91:13
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let isTrue = self.to_sorted_vector().contains(&target);
[INFO] [stdout]    |             ^^^^^^ help: convert the identifier to snake case: `is_true`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "1419b88ed0e474999f90053984686d66d5f7c910d85648e37953cbeb27c0d2b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1419b88ed0e474999f90053984686d66d5f7c910d85648e37953cbeb27c0d2b4", kill_on_drop: false }`
[INFO] [stdout] 1419b88ed0e474999f90053984686d66d5f7c910d85648e37953cbeb27c0d2b4