[INFO] cloning repository https://github.com/jatin510/rust-async-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jatin510/rust-async-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjatin510%2Frust-async-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjatin510%2Frust-async-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3b6e3a57b21a0b0d2a2983924d47a39b97a44aa6
[INFO] checking jatin510/rust-async-test against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjatin510%2Frust-async-test" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jatin510/rust-async-test
[INFO] finished tweaking git repo https://github.com/jatin510/rust-async-test
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[INFO] validating manifest of git repo https://github.com/jatin510/rust-async-test on toolchain 779e19d8baa3e3625bd4fc5c85cbb2ad47b43155
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[INFO] crate git repo https://github.com/jatin510/rust-async-test already has a lockfile, it will not be regenerated
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[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:61:49
[INFO] [stdout]    |
[INFO] [stdout] 61 | async fn process_url(url: &str, client: Client, mut i: i32) {
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:61:49
[INFO] [stdout]    |
[INFO] [stdout] 61 | async fn process_url(url: &str, client: Client, mut i: i32) {
[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: `client`
[INFO] [stdout]   --> src/main.rs:61:33
[INFO] [stdout]    |
[INFO] [stdout] 61 | async fn process_url(url: &str, client: Client, mut i: i32) {
[INFO] [stdout]    |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_client`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `client`
[INFO] [stdout]   --> src/main.rs:61:33
[INFO] [stdout]    |
[INFO] [stdout] 61 | async fn process_url(url: &str, client: Client, mut i: i32) {
[INFO] [stdout]    |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_client`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Sleep` that must be used
[INFO] [stdout]   --> src/main.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     sleep(Duration::from_millis(100));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let _ = sleep(Duration::from_millis(100));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Sleep` that must be used
[INFO] [stdout]   --> src/main.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     sleep(Duration::from_millis(100));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let _ = sleep(Duration::from_millis(100));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.44s
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[INFO] running `Command { std: "docker" "rm" "-f" "c938f2103dd302676326546b04f0b729c47be8a8c0680c203721c72722393e7d", kill_on_drop: false }`
[INFO] [stdout] c938f2103dd302676326546b04f0b729c47be8a8c0680c203721c72722393e7d