[INFO] cloning repository https://github.com/Dah-phd/sorting_algs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Dah-phd/sorting_algs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDah-phd%2Fsorting_algs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDah-phd%2Fsorting_algs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] baca45371d9558861b8af8887fed003c9e0691e3
[INFO] checking Dah-phd/sorting_algs against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDah-phd%2Fsorting_algs" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Dah-phd/sorting_algs on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Dah-phd/sorting_algs
[INFO] finished tweaking git repo https://github.com/Dah-phd/sorting_algs
[INFO] tweaked toml for git repo https://github.com/Dah-phd/sorting_algs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Dah-phd/sorting_algs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5cbab899f349154eaa9e5c0bb6d9a0342f129b145ab0b8a5571f61ae1553eb01
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5cbab899f349154eaa9e5c0bb6d9a0342f129b145ab0b8a5571f61ae1553eb01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5cbab899f349154eaa9e5c0bb6d9a0342f129b145ab0b8a5571f61ae1553eb01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cbab899f349154eaa9e5c0bb6d9a0342f129b145ab0b8a5571f61ae1553eb01", kill_on_drop: false }`
[INFO] [stdout] 5cbab899f349154eaa9e5c0bb6d9a0342f129b145ab0b8a5571f61ae1553eb01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e661d3b184267b3115aaf546bfae496163f6fe7770bdb0bbcddad887fbba2525
[INFO] running `Command { std: "docker" "start" "-a" "e661d3b184267b3115aaf546bfae496163f6fe7770bdb0bbcddad887fbba2525", kill_on_drop: false }`
[INFO] [stderr]     Checking sorting_algs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut vec: Vec<f64> = vec![5.0, 2.0, 3., 54., 5., 6., 7., 8.];
[INFO] [stdout]   |         ----^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bakctracking_sort_inplace`
[INFO] [stdout]   --> src/sorting.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub fn bakctracking_sort_inplace<T: Into<f64> + Copy>(vec: &mut Vec<T>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `recursive_sort_inplace`
[INFO] [stdout]   --> src/sorting.rs:93:8
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub fn recursive_sort_inplace<T: Into<f64> + Copy>(vec: &mut Vec<T>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut vec: Vec<f64> = vec![5.0, 2.0, 3., 54., 5., 6., 7., 8.];
[INFO] [stdout]   |         ----^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bakctracking_sort_inplace`
[INFO] [stdout]   --> src/sorting.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub fn bakctracking_sort_inplace<T: Into<f64> + Copy>(vec: &mut Vec<T>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `recursive_sort_inplace`
[INFO] [stdout]   --> src/sorting.rs:93:8
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub fn recursive_sort_inplace<T: Into<f64> + Copy>(vec: &mut Vec<T>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "e661d3b184267b3115aaf546bfae496163f6fe7770bdb0bbcddad887fbba2525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e661d3b184267b3115aaf546bfae496163f6fe7770bdb0bbcddad887fbba2525", kill_on_drop: false }`
[INFO] [stdout] e661d3b184267b3115aaf546bfae496163f6fe7770bdb0bbcddad887fbba2525