[INFO] cloning repository https://github.com/martynaturczak/RustSolver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/martynaturczak/RustSolver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartynaturczak%2FRustSolver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartynaturczak%2FRustSolver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa6fb43f6b704f823230b0292e28d4334c65d68f
[INFO] checking martynaturczak/RustSolver against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartynaturczak%2FRustSolver" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
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[INFO] started tweaking git repo https://github.com/martynaturczak/RustSolver
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[INFO] validating manifest of git repo https://github.com/martynaturczak/RustSolver on toolchain 779e19d8baa3e3625bd4fc5c85cbb2ad47b43155
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/martynaturczak/RustSolver 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" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/benchmark_service.rs:8:29
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn merge_sort_decorator(mut arr: Vec<String>) {
[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/benchmark_service.rs:15:29
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn quick_sort_decorator(mut arr: Vec<String>) {
[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/benchmark_service.rs:22:33
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn insertion_sort_decorator(mut arr: Vec<String>) {
[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/benchmark_service.rs:30:28
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn heap_sort_decorator(mut arr: Vec<String>) {
[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/benchmark_service.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let mut sorted_dataset = dataset.unsorted_dataset.clone();
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `axum::Json` that must be used
[INFO] [stdout]   --> src/handler.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Json(json_response);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[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] 19 |     let _ = Json(json_response);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/benchmark_service.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         arr_refs.into_iter().map(|s| s.to_string()).collect::<Vec<_>>();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let _ = arr_refs.into_iter().map(|s| s.to_string()).collect::<Vec<_>>();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/benchmark_service.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         arr_refs.into_iter().map(|s| s.to_string()).collect::<Vec<_>>();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let _ = arr_refs.into_iter().map(|s| s.to_string()).collect::<Vec<_>>();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/benchmark_service.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         arr_refs.into_iter().map(|s| s.to_string()).collect::<Vec<_>>();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let _ = arr_refs.into_iter().map(|s| s.to_string()).collect::<Vec<_>>();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/benchmark_service.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         arr_refs.into_iter().map(|s| s.to_string()).collect::<Vec<_>>();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let _ = arr_refs.into_iter().map(|s| s.to_string()).collect::<Vec<_>>();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/benchmark_service.rs:8:29
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn merge_sort_decorator(mut arr: Vec<String>) {
[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/benchmark_service.rs:15:29
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn quick_sort_decorator(mut arr: Vec<String>) {
[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/benchmark_service.rs:22:33
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn insertion_sort_decorator(mut arr: Vec<String>) {
[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/benchmark_service.rs:30:28
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn heap_sort_decorator(mut arr: Vec<String>) {
[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/benchmark_service.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let mut sorted_dataset = dataset.unsorted_dataset.clone();
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Json` that must be used
[INFO] [stdout]   --> src/handler.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Json(json_response);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[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] 19 |     let _ = Json(json_response);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/benchmark_service.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         arr_refs.into_iter().map(|s| s.to_string()).collect::<Vec<_>>();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let _ = arr_refs.into_iter().map(|s| s.to_string()).collect::<Vec<_>>();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/benchmark_service.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         arr_refs.into_iter().map(|s| s.to_string()).collect::<Vec<_>>();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let _ = arr_refs.into_iter().map(|s| s.to_string()).collect::<Vec<_>>();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/benchmark_service.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         arr_refs.into_iter().map(|s| s.to_string()).collect::<Vec<_>>();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let _ = arr_refs.into_iter().map(|s| s.to_string()).collect::<Vec<_>>();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/benchmark_service.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         arr_refs.into_iter().map(|s| s.to_string()).collect::<Vec<_>>();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let _ = arr_refs.into_iter().map(|s| s.to_string()).collect::<Vec<_>>();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 34.67s
[INFO] running `Command { std: "docker" "inspect" "81d85e2165b6d2ae5c2599b85351f7a9e201633df3a454e98161d6acc9290658", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81d85e2165b6d2ae5c2599b85351f7a9e201633df3a454e98161d6acc9290658", kill_on_drop: false }`
[INFO] [stdout] 81d85e2165b6d2ae5c2599b85351f7a9e201633df3a454e98161d6acc9290658
