[INFO] cloning repository https://github.com/JackeyLove1/RustRover
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JackeyLove1/RustRover" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJackeyLove1%2FRustRover", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJackeyLove1%2FRustRover'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3817767830ee6aa4b0bf914fccd242f03277b650
[INFO] checking JackeyLove1/RustRover against try#bac5816c5f3d02cebd0599070af62d1782530294 for pr-150408
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJackeyLove1%2FRustRover" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/JackeyLove1/RustRover
[INFO] finished tweaking git repo https://github.com/JackeyLove1/RustRover
[INFO] tweaked toml for git repo https://github.com/JackeyLove1/RustRover written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/JackeyLove1/RustRover on toolchain bac5816c5f3d02cebd0599070af62d1782530294
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bac5816c5f3d02cebd0599070af62d1782530294" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/JackeyLove1/RustRover 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" "+bac5816c5f3d02cebd0599070af62d1782530294" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]   Downloaded matchers v0.0.1
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[INFO] [stderr]   Downloaded cc v1.0.85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+bac5816c5f3d02cebd0599070af62d1782530294" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f79cbfb17e6d4d317124724252b9cdefa1c01856e7e4a1dee5301584888e76b6
[INFO] running `Command { std: "docker" "start" "-a" "f79cbfb17e6d4d317124724252b9cdefa1c01856e7e4a1dee5301584888e76b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f79cbfb17e6d4d317124724252b9cdefa1c01856e7e4a1dee5301584888e76b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f79cbfb17e6d4d317124724252b9cdefa1c01856e7e4a1dee5301584888e76b6", kill_on_drop: false }`
[INFO] [stdout] f79cbfb17e6d4d317124724252b9cdefa1c01856e7e4a1dee5301584888e76b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+bac5816c5f3d02cebd0599070af62d1782530294" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77627f01bad909f260d420c8fb8be350b5b1bc50de4249e570bd39ff0eb28b40
[INFO] running `Command { std: "docker" "start" "-a" "77627f01bad909f260d420c8fb8be350b5b1bc50de4249e570bd39ff0eb28b40", kill_on_drop: false }`
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[INFO] [stderr]    Compiling serde_derive v1.0.196
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[INFO] [stderr]    Compiling pin-project-internal v1.1.4
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[INFO] [stdout] warning: unused import: `self::utils::generate_random_vec`
[INFO] [stdout]  --> src/practice/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use self::utils::generate_random_vec;
[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 import: `tracing_subscriber::fmt::writer::EitherWriter::B`
[INFO] [stdout]   --> src/practice/sorts.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     use tracing_subscriber::fmt::writer::EitherWriter::B;
[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 import: `std::cmp::Ordering`
[INFO] [stdout]  --> src/practice/std_tests.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     use std::cmp::Ordering;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tracing_subscriber::filter::combinator::Or`
[INFO] [stdout]  --> src/practice/std_tests.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     use tracing_subscriber::filter::combinator::Or;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::prelude`
[INFO] [stdout]  --> src/practice/utils.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reverse` is never used
[INFO] [stdout]  --> src/practice/strings.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn reverse(s : &str) -> String{
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Sorter` is never used
[INFO] [stdout]  --> src/practice/sorts.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Sorter<T: Ord + Copy> {
[INFO] [stdout]   |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bubble_sort` is never used
[INFO] [stdout]   --> src/practice/sorts.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn bubble_sort<T: Ord>(arr: &mut [T]){
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BubbleSort` is never constructed
[INFO] [stdout]   --> src/practice/sorts.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct BubbleSort;
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_random_vec` is never used
[INFO] [stdout]  --> src/practice/utils.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn generate_random_vec<T>(size: usize) -> Vec<T>
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0369]: binary operation `==` cannot be applied to type `std::slice::Iter<'_, i32>`
[INFO] [stdout]   --> src/practice/utils.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |         assert_eq!(res6, vec![1,2,3,4,5,6,7,8,9,10]);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         std::slice::Iter<'_, i32>
[INFO] [stdout]    |         Vec<{integer}>
[INFO] [stdout]    |
[INFO] [stdout] note: `std::slice::Iter<'_, i32>` does not implement `PartialEq<Vec<{integer}>>`
[INFO] [stdout]   --> /rustc/bac5816c5f3d02cebd0599070af62d1782530294/library/core/src/slice/iter.rs:69:0
[INFO] [stdout]    |
[INFO] [stdout]    = note: `std::slice::Iter<'_, i32>` is defined in another crate
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::prelude`
[INFO] [stdout]  --> src/practice/utils.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0369`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `json` and `to_string`
[INFO] [stdout]  --> src/main.rs:5:18
[INFO] [stdout]   |
[INFO] [stdout] 5 | use serde_json::{json, to_string};
[INFO] [stdout]   |                  ^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustv1` (lib test) due to 1 previous error; 4 warnings emitted
[INFO] [stdout] warning: unused imports: `json` and `to_string`
[INFO] [stdout]  --> src/main.rs:5:18
[INFO] [stdout]   |
[INFO] [stdout] 5 | use serde_json::{json, to_string};
[INFO] [stdout]   |                  ^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]   --> src/main.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     use std::collections::HashMap;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]   --> src/main.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     use std::collections::HashMap;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Command` is never used
[INFO] [stdout]   --> src/main.rs:71:6
[INFO] [stdout]    |
[INFO] [stdout] 71 | enum Command {
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Command` is never used
[INFO] [stdout]   --> src/main.rs:71:6
[INFO] [stdout]    |
[INFO] [stdout] 71 | enum Command {
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "77627f01bad909f260d420c8fb8be350b5b1bc50de4249e570bd39ff0eb28b40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77627f01bad909f260d420c8fb8be350b5b1bc50de4249e570bd39ff0eb28b40", kill_on_drop: false }`
[INFO] [stdout] 77627f01bad909f260d420c8fb8be350b5b1bc50de4249e570bd39ff0eb28b40
