[INFO] cloning repository https://github.com/lampij/Rustbik
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lampij/Rustbik" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flampij%2FRustbik", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flampij%2FRustbik'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] efd41746fa1c7878ec5cdbbfeaa0cb2b67ffd311
[INFO] checking lampij/Rustbik against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flampij%2FRustbik" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lampij/Rustbik
[INFO] finished tweaking git repo https://github.com/lampij/Rustbik
[INFO] tweaked toml for git repo https://github.com/lampij/Rustbik written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lampij/Rustbik on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lampij/Rustbik 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded winapi-util v0.1.2
[INFO] [stderr]   Downloaded rand_chacha v0.2.1
[INFO] [stderr]   Downloaded wasi v0.7.0
[INFO] [stderr]   Downloaded wincolor v1.0.2
[INFO] [stderr]   Downloaded c2-chacha v0.2.2
[INFO] [stderr]   Downloaded termcolor v1.0.5
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.5
[INFO] [stderr]   Downloaded getrandom v0.1.12
[INFO] [stderr]   Downloaded rand v0.7.2
[INFO] [stderr]   Downloaded libc v0.2.65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9973de46aeb69f2d140d0990e3200d3d626c6e44ac72b4a30cb63f1007f81a58
[INFO] running `Command { std: "docker" "start" "-a" "9973de46aeb69f2d140d0990e3200d3d626c6e44ac72b4a30cb63f1007f81a58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9973de46aeb69f2d140d0990e3200d3d626c6e44ac72b4a30cb63f1007f81a58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9973de46aeb69f2d140d0990e3200d3d626c6e44ac72b4a30cb63f1007f81a58", kill_on_drop: false }`
[INFO] [stdout] 9973de46aeb69f2d140d0990e3200d3d626c6e44ac72b4a30cb63f1007f81a58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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_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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33046b08ca56e117bdbe894bddc41b6ec4b5d5689fef3635d8a82746ebdf0e25
[INFO] running `Command { std: "docker" "start" "-a" "33046b08ca56e117bdbe894bddc41b6ec4b5d5689fef3635d8a82746ebdf0e25", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking rustbik v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:91:35
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn solve_best_simple_move(mut c: Cube) -> Cube{
[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:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let mut total : f64 = 0.00;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `total`
[INFO] [stdout]    --> src/main.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let mut total : f64 = 0.00;
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_total`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustbik` (bin "rustbik") due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:91:35
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn solve_best_simple_move(mut c: Cube) -> Cube{
[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:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let mut total : f64 = 0.00;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `total`
[INFO] [stdout]    --> src/main.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let mut total : f64 = 0.00;
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_total`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:530:17
[INFO] [stdout]     |
[INFO] [stdout] 530 |             for i in 1..1000000 {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:571:17
[INFO] [stdout]     |
[INFO] [stdout] 571 |             for i in 1..1000000 {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:625:17
[INFO] [stdout]     |
[INFO] [stdout] 625 |             for i in 1..1000000 {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:679:17
[INFO] [stdout]     |
[INFO] [stdout] 679 |             for i in 1..1000000 {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:733:17
[INFO] [stdout]     |
[INFO] [stdout] 733 |             for i in 1..1000000 {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:787:17
[INFO] [stdout]     |
[INFO] [stdout] 787 |             for i in 1..1000000 {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:841:17
[INFO] [stdout]     |
[INFO] [stdout] 841 |             for i in 1..1000000 {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:895:17
[INFO] [stdout]     |
[INFO] [stdout] 895 |             for i in 1..1000000 {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:903:13
[INFO] [stdout]     |
[INFO] [stdout] 903 |         let mut test_cube = Cube::new();
[INFO] [stdout]     |             ----^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/main.rs:905:17
[INFO] [stdout]     |
[INFO] [stdout] 905 |             let n = test::black_box(&test_cube);
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:907:17
[INFO] [stdout]     |
[INFO] [stdout] 907 |             for i in 1..1000000 {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sort_val`
[INFO] [stdout]    --> src/main.rs:908:21
[INFO] [stdout]     |
[INFO] [stdout] 908 |                 let sort_val = Cube::is_side_sorted(&test_cube.front);
[INFO] [stdout]     |                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sort_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/main.rs:917:17
[INFO] [stdout]     |
[INFO] [stdout] 917 |             let n = test::black_box(&test_cube);
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:919:17
[INFO] [stdout]     |
[INFO] [stdout] 919 |             for i in 1..100000000 {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sort_val`
[INFO] [stdout]    --> src/main.rs:920:21
[INFO] [stdout]     |
[INFO] [stdout] 920 |                 let sort_val = Cube::swap_unit_colors(&mut test_cube.front.top_right, &mut test_cube.back.top_left);
[INFO] [stdout]     |                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sort_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustbik` (bin "rustbik" test) due to 1 previous error; 18 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "33046b08ca56e117bdbe894bddc41b6ec4b5d5689fef3635d8a82746ebdf0e25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33046b08ca56e117bdbe894bddc41b6ec4b5d5689fef3635d8a82746ebdf0e25", kill_on_drop: false }`
[INFO] [stdout] 33046b08ca56e117bdbe894bddc41b6ec4b5d5689fef3635d8a82746ebdf0e25
