[INFO] cloning repository https://github.com/eugenehp/gpu-fft
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eugenehp/gpu-fft" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feugenehp%2Fgpu-fft", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feugenehp%2Fgpu-fft'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0a54bee9be09f46a465bd12ff2e7d9d672cc17c5
[INFO] checking eugenehp/gpu-fft against try#901e6d56697c79b2e80df6a487b2318ec6f57ee3 for pr-142287
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feugenehp%2Fgpu-fft" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/eugenehp/gpu-fft on toolchain 901e6d56697c79b2e80df6a487b2318ec6f57ee3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/eugenehp/gpu-fft
[INFO] finished tweaking git repo https://github.com/eugenehp/gpu-fft
[INFO] tweaked toml for git repo https://github.com/eugenehp/gpu-fft written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/eugenehp/gpu-fft 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" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0791b1c8b22b89bcd85f6af9aadafede56af7183fe1b13ae9f581e6a4617afe
[INFO] running `Command { std: "docker" "start" "-a" "d0791b1c8b22b89bcd85f6af9aadafede56af7183fe1b13ae9f581e6a4617afe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0791b1c8b22b89bcd85f6af9aadafede56af7183fe1b13ae9f581e6a4617afe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0791b1c8b22b89bcd85f6af9aadafede56af7183fe1b13ae9f581e6a4617afe", kill_on_drop: false }`
[INFO] [stdout] d0791b1c8b22b89bcd85f6af9aadafede56af7183fe1b13ae9f581e6a4617afe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 55f974ad7061a39e65cb194498396e425ed1da59ddf312f39bb757f807adf793
[INFO] running `Command { std: "docker" "start" "-a" "55f974ad7061a39e65cb194498396e425ed1da59ddf312f39bb757f807adf793", kill_on_drop: false }`
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[INFO] [stderr]    Compiling cubecl-macros v0.4.0
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[INFO] [stderr]     Checking tinytemplate v1.2.1
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[INFO] [stderr]     Checking gpu-fft v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `twiddles`
[INFO] [stdout]  --> examples/simple.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | use gpu_fft::{fft, ifft, psd, twiddles, utils};
[INFO] [stdout]   |                               ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> examples/simple.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let n = real.len();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]   --> examples/simple.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let output = ifft::ifft::<Runtime>(&device, real, imag);
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 33.65s
[INFO] running `Command { std: "docker" "inspect" "55f974ad7061a39e65cb194498396e425ed1da59ddf312f39bb757f807adf793", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55f974ad7061a39e65cb194498396e425ed1da59ddf312f39bb757f807adf793", kill_on_drop: false }`
[INFO] [stdout] 55f974ad7061a39e65cb194498396e425ed1da59ddf312f39bb757f807adf793