[INFO] cloning repository https://github.com/ikamensh/sorts
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ikamensh/sorts" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fikamensh%2Fsorts", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fikamensh%2Fsorts'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4eb0e03b31fae8cf7c1e3c2a204fd49fd882aa91
[INFO] testing ikamensh/sorts against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fikamensh%2Fsorts" "/workspace/builds/worker-34/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-34/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ikamensh/sorts on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ikamensh/sorts
[INFO] finished tweaking git repo https://github.com/ikamensh/sorts
[INFO] tweaked toml for git repo https://github.com/ikamensh/sorts written to /workspace/builds/worker-34/source/Cargo.toml
[INFO] crate git repo https://github.com/ikamensh/sorts already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae9f146b0aab2d8918a27aedc7c9852c72809c16cc674593ffceb8b30b1159dc
[INFO] running `Command { std: "docker" "start" "-a" "ae9f146b0aab2d8918a27aedc7c9852c72809c16cc674593ffceb8b30b1159dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae9f146b0aab2d8918a27aedc7c9852c72809c16cc674593ffceb8b30b1159dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae9f146b0aab2d8918a27aedc7c9852c72809c16cc674593ffceb8b30b1159dc", kill_on_drop: false }`
[INFO] [stdout] ae9f146b0aab2d8918a27aedc7c9852c72809c16cc674593ffceb8b30b1159dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4103e37a43fb07e840d76ff69a5f8c22c5b4ba0c238901ab26a56169d13f4559
[INFO] running `Command { std: "docker" "start" "-a" "4103e37a43fb07e840d76ff69a5f8c22c5b4ba0c238901ab26a56169d13f4559", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling sorts v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand::prelude::*`
[INFO] [stdout]  --> src/sorting_algorithms/quicksort.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parent`
[INFO] [stdout]   --> src/sorting_algorithms/heap.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn parent(idx: usize) -> Option<usize> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `has_heap_property`
[INFO] [stdout]   --> src/sorting_algorithms/heap.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn has_heap_property(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bubble_sort`
[INFO] [stdout]  --> src/bin/visual.rs:1:38
[INFO] [stdout]   |
[INFO] [stdout] 1 | use sorts::{is_sorted, random_array, bubble_sort, heapsort};
[INFO] [stdout]   |                                      ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/bin/visual.rs:11:22
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let a = heapsort(a); // use this line for sorts that are not inplace
[INFO] [stdout]    |                      ^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      expected `&[_]`, found struct `Vec`
[INFO] [stdout]    |                      help: consider borrowing here: `&a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&[_]`
[INFO] [stdout]                  found struct `Vec<i8>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sorts`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "4103e37a43fb07e840d76ff69a5f8c22c5b4ba0c238901ab26a56169d13f4559", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4103e37a43fb07e840d76ff69a5f8c22c5b4ba0c238901ab26a56169d13f4559", kill_on_drop: false }`
[INFO] [stdout] 4103e37a43fb07e840d76ff69a5f8c22c5b4ba0c238901ab26a56169d13f4559
