[INFO] cloning repository https://github.com/thomabel/sliding-puzzle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thomabel/sliding-puzzle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomabel%2Fsliding-puzzle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomabel%2Fsliding-puzzle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5bf949c505c0505b85d187cc0ff566e80271bc95
[INFO] checking thomabel/sliding-puzzle against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomabel%2Fsliding-puzzle" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/thomabel/sliding-puzzle
[INFO] finished tweaking git repo https://github.com/thomabel/sliding-puzzle
[INFO] tweaked toml for git repo https://github.com/thomabel/sliding-puzzle written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/thomabel/sliding-puzzle 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/thomabel/sliding-puzzle 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded snowflake v1.3.0
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[INFO] [stderr]   Downloaded send_wrapper v0.2.0
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[INFO] [stderr]   Downloaded tiny-skia-path v0.7.0
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[INFO] [stderr]   Downloaded freetype-rs v0.26.0
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[INFO] [stderr]   Downloaded smithay-client-toolkit v0.16.0
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[INFO] [stderr]   Downloaded ndarray v0.15.6
[INFO] [stderr]   Downloaded png v0.17.6
[INFO] [stderr]   Downloaded calloop v0.10.1
[INFO] [stderr]   Downloaded nix v0.24.2
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[INFO] [stderr]   Downloaded glutin v0.29.1
[INFO] [stderr]   Downloaded wayland-egl v0.29.5
[INFO] [stderr]   Downloaded winit v0.27.4
[INFO] [stderr]   Downloaded wasm-timer v0.1.3
[INFO] [stderr]   Downloaded num_enum_derive v0.5.7
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[INFO] [stderr]   Downloaded freetype-sys v0.13.1
[INFO] [stderr]   Downloaded object-pool v0.5.4
[INFO] [stderr]   Downloaded bracket-lib v0.8.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 9eb370a46d5ff52a9f76a4b53beb9174ba5a8873dc5f029f9fd8f2a87811d27b
[INFO] running `Command { std: "docker" "start" "-a" "9eb370a46d5ff52a9f76a4b53beb9174ba5a8873dc5f029f9fd8f2a87811d27b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9eb370a46d5ff52a9f76a4b53beb9174ba5a8873dc5f029f9fd8f2a87811d27b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9eb370a46d5ff52a9f76a4b53beb9174ba5a8873dc5f029f9fd8f2a87811d27b", kill_on_drop: false }`
[INFO] [stdout] 9eb370a46d5ff52a9f76a4b53beb9174ba5a8873dc5f029f9fd8f2a87811d27b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] a01600f7b29345346e719dc149ab99e866647b9025d7e10c6fb75b5b337b6db5
[INFO] running `Command { std: "docker" "start" "-a" "a01600f7b29345346e719dc149ab99e866647b9025d7e10c6fb75b5b337b6db5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking bytemuck v1.12.1
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]     Checking libloading v0.7.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]     Checking miniz_oxide v0.5.4
[INFO] [stderr]    Compiling parking_lot_core v0.9.4
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]     Checking safe_arch v0.6.0
[INFO] [stderr]    Compiling crossfont v0.5.0
[INFO] [stderr]    Compiling x11-dl v2.20.0
[INFO] [stderr]    Compiling smithay-client-toolkit v0.16.0
[INFO] [stderr]     Checking foreign-types-shared v0.3.1
[INFO] [stderr]     Checking wide v0.7.5
[INFO] [stderr]     Checking tiny-skia-path v0.7.0
[INFO] [stderr]     Checking safe_arch v0.5.2
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking cty v0.2.2
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking jpeg-decoder v0.2.6
[INFO] [stderr]     Checking raw-window-handle v0.5.0
[INFO] [stderr]     Checking raw-window-handle v0.4.3
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]    Compiling priority-queue v1.2.3
[INFO] [stderr]     Checking glow v0.11.2
[INFO] [stderr]     Checking snowflake v1.3.0
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]     Checking slab_tree v0.3.2
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking png v0.17.6
[INFO] [stderr]    Compiling cmake v0.1.48
[INFO] [stderr]    Compiling wayland-scanner v0.29.5
[INFO] [stderr]     Checking chronometer v0.1.2
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.6
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.8
[INFO] [stderr]    Compiling freetype-sys v0.13.1
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]     Checking nix v0.24.2
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking memmap2 v0.5.7
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking freetype-rs v0.26.0
[INFO] [stderr]     Checking tiny-skia v0.7.0
[INFO] [stderr]     Checking image v0.24.4
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking servo-fontconfig v0.5.1
[INFO] [stderr]     Checking object-pool v0.5.4
[INFO] [stderr]     Checking xcursor v0.3.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking bracket-color v0.8.7
[INFO] [stderr]     Checking bracket-embedding v0.8.7
[INFO] [stderr]     Checking ultraviolet v0.9.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling wayland-client v0.29.5
[INFO] [stderr]    Compiling wayland-protocols v0.29.5
[INFO] [stderr]     Checking bracket-rex v0.8.7
[INFO] [stderr]     Checking bracket-random v0.8.7
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking bracket-noise v0.8.7
[INFO] [stderr]     Checking wayland-commons v0.29.5
[INFO] [stderr]     Checking bracket-geometry v0.8.7
[INFO] [stderr]     Checking ndarray-rand v0.14.0
[INFO] [stderr]     Checking bracket-algorithm-traits v0.8.7
[INFO] [stderr]     Checking bracket-pathfinding v0.8.7
[INFO] [stderr]     Checking wayland-cursor v0.29.5
[INFO] [stderr]     Checking wayland-egl v0.29.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.37
[INFO] [stderr]    Compiling foreign-types-macros v0.2.2
[INFO] [stderr]     Checking foreign-types v0.5.0
[INFO] [stderr]     Checking calloop v0.10.1
[INFO] [stderr]     Checking sctk-adwaita v0.4.3
[INFO] [stderr]     Checking winit v0.27.4
[INFO] [stderr]     Checking glutin v0.29.1
[INFO] [stderr]     Checking bracket-terminal v0.8.7
[INFO] [stderr]     Checking bracket-lib v0.8.7
[INFO] [stderr]     Checking sliding-puzzle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `k` is never read
[INFO] [stdout]   --> src/main.rs:61:21
[INFO] [stdout]    |
[INFO] [stdout] 61 |         let mut k = i * trials;
[INFO] [stdout]    |                     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |     for i in 0..5 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `k` is never read
[INFO] [stdout]   --> src/main.rs:61:21
[INFO] [stdout]    |
[INFO] [stdout] 61 |         let mut k = i * trials;
[INFO] [stdout]    |                     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |     for i in 0..5 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 47.77s
[INFO] running `Command { std: "docker" "inspect" "a01600f7b29345346e719dc149ab99e866647b9025d7e10c6fb75b5b337b6db5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a01600f7b29345346e719dc149ab99e866647b9025d7e10c6fb75b5b337b6db5", kill_on_drop: false }`
[INFO] [stdout] a01600f7b29345346e719dc149ab99e866647b9025d7e10c6fb75b5b337b6db5
