[INFO] cloning repository https://github.com/AnurupDey/webgpu_tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AnurupDey/webgpu_tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnurupDey%2Fwebgpu_tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnurupDey%2Fwebgpu_tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c1c75e871ec04272ff1f7497c21b056b04be38cf
[INFO] checking AnurupDey/webgpu_tutorial against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnurupDey%2Fwebgpu_tutorial" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AnurupDey/webgpu_tutorial on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AnurupDey/webgpu_tutorial
[INFO] finished tweaking git repo https://github.com/AnurupDey/webgpu_tutorial
[INFO] tweaked toml for git repo https://github.com/AnurupDey/webgpu_tutorial written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/AnurupDey/webgpu_tutorial already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 95d20f8bd3117d4ebd8e7c57b10354ac766cb1b05d5a49f7ab0d11942102ed5a
[INFO] running `Command { std: "docker" "start" "-a" "95d20f8bd3117d4ebd8e7c57b10354ac766cb1b05d5a49f7ab0d11942102ed5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95d20f8bd3117d4ebd8e7c57b10354ac766cb1b05d5a49f7ab0d11942102ed5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95d20f8bd3117d4ebd8e7c57b10354ac766cb1b05d5a49f7ab0d11942102ed5a", kill_on_drop: false }`
[INFO] [stdout] 95d20f8bd3117d4ebd8e7c57b10354ac766cb1b05d5a49f7ab0d11942102ed5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bd17e1f8382cbd2af23950b410f25178393c63d9a0a384d25dfc04f218cdaec
[INFO] running `Command { std: "docker" "start" "-a" "1bd17e1f8382cbd2af23950b410f25178393c63d9a0a384d25dfc04f218cdaec", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]     Checking futures-sink v0.3.15
[INFO] [stderr]     Checking inplace_it v0.3.3
[INFO] [stderr]    Compiling cgmath v0.18.0
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking copyless v0.1.5
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling anyhow v1.0.41
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling wayland-sys v0.28.5
[INFO] [stderr]     Checking libloading v0.7.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]    Compiling wgpu-core v0.8.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking crossbeam-utils v0.8.5
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]     Checking ash v0.32.1
[INFO] [stderr]     Checking nom v6.1.2
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking gpu-alloc-types v0.2.0
[INFO] [stderr]     Checking gpu-descriptor-types v0.1.1
[INFO] [stderr]     Checking andrew v0.3.1
[INFO] [stderr]     Checking wgpu-types v0.8.0
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking gpu-alloc v0.4.7
[INFO] [stderr]     Checking gpu-descriptor v0.1.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking spirv_headers v1.5.0
[INFO] [stderr]     Checking approx v0.4.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling wayland-scanner v0.28.5
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking khronos-egl v4.1.0
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking memmap2 v0.1.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking x11-dl v2.18.5
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking xcursor v0.3.3
[INFO] [stderr]    Compiling wayland-client v0.28.5
[INFO] [stderr]    Compiling wayland-protocols v0.28.5
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking wayland-commons v0.28.5
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking calloop v0.6.5
[INFO] [stderr]     Checking wayland-cursor v0.28.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling bytemuck_derive v1.0.1
[INFO] [stderr]     Checking bytemuck v1.7.0
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking thiserror v1.0.25
[INFO] [stderr]     Checking naga v0.4.2
[INFO] [stderr]     Checking smithay-client-toolkit v0.12.3
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Checking winit v0.24.0
[INFO] [stderr]     Checking gfx-hal v0.8.0
[INFO] [stderr]     Checking gfx-backend-vulkan v0.8.0
[INFO] [stderr]     Checking gfx-backend-gl v0.8.1
[INFO] [stderr]     Checking gfx-backend-empty v0.8.0
[INFO] [stderr]     Checking wgpu v0.8.1
[INFO] [stderr]     Checking webgpu_tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `NUM_INSTANCES`
[INFO] [stdout]    --> src/main.rs:490:9
[INFO] [stdout]     |
[INFO] [stdout] 490 |         const NUM_INSTANCES: u32 = NUM_INSTANCES_PER_ROW * NUM_INSTANCES_PER_ROW;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NUM_INSTANCES`
[INFO] [stdout]    --> src/main.rs:490:9
[INFO] [stdout]     |
[INFO] [stdout] 490 |         const NUM_INSTANCES: u32 = NUM_INSTANCES_PER_ROW * NUM_INSTANCES_PER_ROW;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.96s
[INFO] running `Command { std: "docker" "inspect" "1bd17e1f8382cbd2af23950b410f25178393c63d9a0a384d25dfc04f218cdaec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bd17e1f8382cbd2af23950b410f25178393c63d9a0a384d25dfc04f218cdaec", kill_on_drop: false }`
[INFO] [stdout] 1bd17e1f8382cbd2af23950b410f25178393c63d9a0a384d25dfc04f218cdaec