[INFO] fetching crate sort_alogorithms_v010 0.1.0...
[INFO] building sort_alogorithms_v010-0.1.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate sort_alogorithms_v010 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate sort_alogorithms_v010 0.1.0
[INFO] finished tweaking crates.io crate sort_alogorithms_v010 0.1.0
[INFO] tweaked toml for crates.io crate sort_alogorithms_v010 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sort_alogorithms_v010 0.1.0 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 854513d3d21341375770a004c66f3f06794d98b2c58b478d72d39542cfa42698
[INFO] running `Command { std: "docker" "start" "-a" "854513d3d21341375770a004c66f3f06794d98b2c58b478d72d39542cfa42698", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "854513d3d21341375770a004c66f3f06794d98b2c58b478d72d39542cfa42698", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "854513d3d21341375770a004c66f3f06794d98b2c58b478d72d39542cfa42698", kill_on_drop: false }`
[INFO] [stdout] 854513d3d21341375770a004c66f3f06794d98b2c58b478d72d39542cfa42698
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11dc995512b43947ad653f454806678dc2f8e3811483f580162ca12ecfd0e1dc
[INFO] running `Command { std: "docker" "start" "-a" "11dc995512b43947ad653f454806678dc2f8e3811483f580162ca12ecfd0e1dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling sort_alogorithms_v010 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/sort/quick_sort.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut pivot = arr[end];
[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: unused variable: `size`
[INFO] [stdout]   --> src/sort/merge_sort.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let mut size = end - begin + 1;
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/sort/merge_sort.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let mut size = end - begin + 1;
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/sort/radix_sort.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut bigger: i32 = arr
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/sort/radix_sort.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let mut arr2 = arr.clone();
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bubble_sort` is never used
[INFO] [stdout]  --> src/sort/bubble_sort.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn bubble_sort<T>(arr: &mut Vec<T>, compare: fn(T, T) -> bool)
[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 `selection_sort` is never used
[INFO] [stdout]  --> src/sort/selection_sort.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn selection_sort<T>(arr: &mut Vec<T>, compare: fn(T,T) -> bool)
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `partion` is never used
[INFO] [stdout]  --> src/sort/quick_sort.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn partion<T>(arr: &mut Vec<T>, start: usize, end: usize, compare: fn(T, T) -> bool) -> i64
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `quick_sort` is never used
[INFO] [stdout]   --> src/sort/quick_sort.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn quick_sort<T>(arr: &mut Vec<T>, start: usize, end: usize, compare: fn (T, T) -> bool)
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `heapsort` is never used
[INFO] [stdout]  --> src/sort/heapsort.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn heapsort<T>(arr: &mut Vec<T>)
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sift_down` is never used
[INFO] [stdout]   --> src/sort/heapsort.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn sift_down<T>(arr: &mut Vec<T>, start: usize, end: usize)
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sort` is never used
[INFO] [stdout]  --> src/sort/merge_sort.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn sort<T>(arr: &mut Vec<T>, compare: fn(T, T) -> bool)
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mergesort` is never used
[INFO] [stdout]   --> src/sort/merge_sort.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn mergesort<T>(arr: &mut Vec<T>, begin: usize, end: usize, compare: fn(T, T) -> bool)
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `merge` is never used
[INFO] [stdout]   --> src/sort/merge_sort.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn merge<T>(arr: &mut Vec<T>, begin: usize, middle: usize, end: usize, compare: fn(T, T) -> bool)
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `RadixSort` is never used
[INFO] [stdout]  --> src/sort/radix_sort.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub trait RadixSort {
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `radix_sort` is never used
[INFO] [stdout]  --> src/sort/radix_sort.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn radix_sort<T>(arr: &mut Vec<T>)
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "11dc995512b43947ad653f454806678dc2f8e3811483f580162ca12ecfd0e1dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11dc995512b43947ad653f454806678dc2f8e3811483f580162ca12ecfd0e1dc", kill_on_drop: false }`
[INFO] [stdout] 11dc995512b43947ad653f454806678dc2f8e3811483f580162ca12ecfd0e1dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6664256a3cc9fbb6a9a9e90bb7e164329c346662f354506464b87c230b7cd9e5
[INFO] running `Command { std: "docker" "start" "-a" "6664256a3cc9fbb6a9a9e90bb7e164329c346662f354506464b87c230b7cd9e5", kill_on_drop: false }`
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/sort/quick_sort.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut pivot = arr[end];
[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] [stderr]    Compiling sort_alogorithms_v010 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/sort/merge_sort.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let mut size = end - begin + 1;
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/sort/merge_sort.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let mut size = end - begin + 1;
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/sort/radix_sort.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut bigger: i32 = arr
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/sort/radix_sort.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let mut arr2 = arr.clone();
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bubble_sort` is never used
[INFO] [stdout]  --> src/sort/bubble_sort.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn bubble_sort<T>(arr: &mut Vec<T>, compare: fn(T, T) -> bool)
[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 `selection_sort` is never used
[INFO] [stdout]  --> src/sort/selection_sort.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn selection_sort<T>(arr: &mut Vec<T>, compare: fn(T,T) -> bool)
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `partion` is never used
[INFO] [stdout]  --> src/sort/quick_sort.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn partion<T>(arr: &mut Vec<T>, start: usize, end: usize, compare: fn(T, T) -> bool) -> i64
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `quick_sort` is never used
[INFO] [stdout]   --> src/sort/quick_sort.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn quick_sort<T>(arr: &mut Vec<T>, start: usize, end: usize, compare: fn (T, T) -> bool)
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `heapsort` is never used
[INFO] [stdout]  --> src/sort/heapsort.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn heapsort<T>(arr: &mut Vec<T>)
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sift_down` is never used
[INFO] [stdout]   --> src/sort/heapsort.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn sift_down<T>(arr: &mut Vec<T>, start: usize, end: usize)
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sort` is never used
[INFO] [stdout]  --> src/sort/merge_sort.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn sort<T>(arr: &mut Vec<T>, compare: fn(T, T) -> bool)
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mergesort` is never used
[INFO] [stdout]   --> src/sort/merge_sort.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn mergesort<T>(arr: &mut Vec<T>, begin: usize, end: usize, compare: fn(T, T) -> bool)
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `merge` is never used
[INFO] [stdout]   --> src/sort/merge_sort.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn merge<T>(arr: &mut Vec<T>, begin: usize, middle: usize, end: usize, compare: fn(T, T) -> bool)
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `RadixSort` is never used
[INFO] [stdout]  --> src/sort/radix_sort.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub trait RadixSort {
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `radix_sort` is never used
[INFO] [stdout]  --> src/sort/radix_sort.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn radix_sort<T>(arr: &mut Vec<T>)
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/sort/quick_sort.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut pivot = arr[end];
[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: unused variable: `size`
[INFO] [stdout]   --> src/sort/merge_sort.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let mut size = end - begin + 1;
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/sort/merge_sort.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let mut size = end - begin + 1;
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/sort/radix_sort.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut bigger: i32 = arr
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/sort/radix_sort.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let mut arr2 = arr.clone();
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bubble_sort` is never used
[INFO] [stdout]  --> src/sort/bubble_sort.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn bubble_sort<T>(arr: &mut Vec<T>, compare: fn(T, T) -> bool)
[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 `selection_sort` is never used
[INFO] [stdout]  --> src/sort/selection_sort.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn selection_sort<T>(arr: &mut Vec<T>, compare: fn(T,T) -> bool)
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `partion` is never used
[INFO] [stdout]  --> src/sort/quick_sort.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn partion<T>(arr: &mut Vec<T>, start: usize, end: usize, compare: fn(T, T) -> bool) -> i64
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `quick_sort` is never used
[INFO] [stdout]   --> src/sort/quick_sort.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn quick_sort<T>(arr: &mut Vec<T>, start: usize, end: usize, compare: fn (T, T) -> bool)
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `heapsort` is never used
[INFO] [stdout]  --> src/sort/heapsort.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn heapsort<T>(arr: &mut Vec<T>)
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sift_down` is never used
[INFO] [stdout]   --> src/sort/heapsort.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn sift_down<T>(arr: &mut Vec<T>, start: usize, end: usize)
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sort` is never used
[INFO] [stdout]  --> src/sort/merge_sort.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn sort<T>(arr: &mut Vec<T>, compare: fn(T, T) -> bool)
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mergesort` is never used
[INFO] [stdout]   --> src/sort/merge_sort.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn mergesort<T>(arr: &mut Vec<T>, begin: usize, end: usize, compare: fn(T, T) -> bool)
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `merge` is never used
[INFO] [stdout]   --> src/sort/merge_sort.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn merge<T>(arr: &mut Vec<T>, begin: usize, middle: usize, end: usize, compare: fn(T, T) -> bool)
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `RadixSort` is never used
[INFO] [stdout]  --> src/sort/radix_sort.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub trait RadixSort {
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `radix_sort` is never used
[INFO] [stdout]  --> src/sort/radix_sort.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn radix_sort<T>(arr: &mut Vec<T>)
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "6664256a3cc9fbb6a9a9e90bb7e164329c346662f354506464b87c230b7cd9e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6664256a3cc9fbb6a9a9e90bb7e164329c346662f354506464b87c230b7cd9e5", kill_on_drop: false }`
[INFO] [stdout] 6664256a3cc9fbb6a9a9e90bb7e164329c346662f354506464b87c230b7cd9e5