[INFO] cloning repository https://github.com/Hayashi-Yudai/labtool_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Hayashi-Yudai/labtool_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHayashi-Yudai%2Flabtool_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHayashi-Yudai%2Flabtool_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4a831840067b80db7065d077ef43582b532d17d5
[INFO] checking Hayashi-Yudai/labtool_rust against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHayashi-Yudai%2Flabtool_rust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Hayashi-Yudai/labtool_rust on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Hayashi-Yudai/labtool_rust
[INFO] finished tweaking git repo https://github.com/Hayashi-Yudai/labtool_rust
[INFO] tweaked toml for git repo https://github.com/Hayashi-Yudai/labtool_rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Hayashi-Yudai/labtool_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4361a4d0d63627fec41cc43d244c37035fe0dc4494f487d542349441d681a0f9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4361a4d0d63627fec41cc43d244c37035fe0dc4494f487d542349441d681a0f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4361a4d0d63627fec41cc43d244c37035fe0dc4494f487d542349441d681a0f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4361a4d0d63627fec41cc43d244c37035fe0dc4494f487d542349441d681a0f9", kill_on_drop: false }`
[INFO] [stdout] 4361a4d0d63627fec41cc43d244c37035fe0dc4494f487d542349441d681a0f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 698fafd3a4f5654d15bda4b63d9323c97fad2206cfba67353f6af29867598b6d
[INFO] running `Command { std: "docker" "start" "-a" "698fafd3a4f5654d15bda4b63d9323c97fad2206cfba67353f6af29867598b6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking transpose v0.1.0
[INFO] [stderr]     Checking strength_reduce v0.2.2
[INFO] [stderr]     Checking indexmap v1.2.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking rustfft v3.0.0
[INFO] [stderr]     Checking labtool_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rustfft::num_traits::Zero`
[INFO] [stdout]  --> src/conductivity/longitudinal.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rustfft::num_traits::Zero;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `fft`
[INFO] [stdout]  --> src/conductivity/longitudinal.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn fft(input: &mut Vec<Complex<f32>>, output: &mut Vec<Complex<f32>>){
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.76s
[INFO] running `Command { std: "docker" "inspect" "698fafd3a4f5654d15bda4b63d9323c97fad2206cfba67353f6af29867598b6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "698fafd3a4f5654d15bda4b63d9323c97fad2206cfba67353f6af29867598b6d", kill_on_drop: false }`
[INFO] [stdout] 698fafd3a4f5654d15bda4b63d9323c97fad2206cfba67353f6af29867598b6d