[INFO] cloning repository https://github.com/KongBorup/fourier-transform-sop
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KongBorup/fourier-transform-sop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKongBorup%2Ffourier-transform-sop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKongBorup%2Ffourier-transform-sop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fc3185b0cae8e15018487e7f5c4eeaf1c722ec62
[INFO] checking KongBorup/fourier-transform-sop against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKongBorup%2Ffourier-transform-sop" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KongBorup/fourier-transform-sop on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KongBorup/fourier-transform-sop
[INFO] finished tweaking git repo https://github.com/KongBorup/fourier-transform-sop
[INFO] tweaked toml for git repo https://github.com/KongBorup/fourier-transform-sop written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/KongBorup/fourier-transform-sop already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8cc13d5cceb7d41eba9caeadcf9f904842583b2bc904a41082dc4f2a3695e1fa
[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" "8cc13d5cceb7d41eba9caeadcf9f904842583b2bc904a41082dc4f2a3695e1fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8cc13d5cceb7d41eba9caeadcf9f904842583b2bc904a41082dc4f2a3695e1fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cc13d5cceb7d41eba9caeadcf9f904842583b2bc904a41082dc4f2a3695e1fa", kill_on_drop: false }`
[INFO] [stdout] 8cc13d5cceb7d41eba9caeadcf9f904842583b2bc904a41082dc4f2a3695e1fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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] 736d372253fbe20e414189f7983a693dd5dbb328a26296d07b21d8728feb6e23
[INFO] running `Command { std: "docker" "start" "-a" "736d372253fbe20e414189f7983a693dd5dbb328a26296d07b21d8728feb6e23", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling ryu v1.0.1
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking fourier-sop v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `plot`
[INFO] [stdout]  --> src/graphing.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn plot(t: &[f64], x: &[Complex<f64>], f: &[f64], X: &[Complex<f64>]) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `plot`
[INFO] [stdout]  --> src/graphing.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn plot(t: &[f64], x: &[Complex<f64>], f: &[f64], X: &[Complex<f64>]) -> Result<(), Box<dyn Error>> {
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.97s
[INFO] running `Command { std: "docker" "inspect" "736d372253fbe20e414189f7983a693dd5dbb328a26296d07b21d8728feb6e23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "736d372253fbe20e414189f7983a693dd5dbb328a26296d07b21d8728feb6e23", kill_on_drop: false }`
[INFO] [stdout] 736d372253fbe20e414189f7983a693dd5dbb328a26296d07b21d8728feb6e23