[INFO] cloning repository https://github.com/samuel-cavalcanti/rust_fft_simple_implementation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/samuel-cavalcanti/rust_fft_simple_implementation" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamuel-cavalcanti%2Frust_fft_simple_implementation", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamuel-cavalcanti%2Frust_fft_simple_implementation'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1ae518a69ad49ab284c8710b00d348a674041ef8
[INFO] checking samuel-cavalcanti/rust_fft_simple_implementation against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamuel-cavalcanti%2Frust_fft_simple_implementation" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/samuel-cavalcanti/rust_fft_simple_implementation on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/samuel-cavalcanti/rust_fft_simple_implementation
[INFO] finished tweaking git repo https://github.com/samuel-cavalcanti/rust_fft_simple_implementation
[INFO] tweaked toml for git repo https://github.com/samuel-cavalcanti/rust_fft_simple_implementation written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/samuel-cavalcanti/rust_fft_simple_implementation already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num v0.4.0
[INFO] [stderr]   Downloaded num-bigint v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1de9ee3080d1801bd2cf09cd297b2ebce996d619dc2bfb9f15ac2ed44d653336
[INFO] running `Command { std: "docker" "start" "-a" "1de9ee3080d1801bd2cf09cd297b2ebce996d619dc2bfb9f15ac2ed44d653336", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1de9ee3080d1801bd2cf09cd297b2ebce996d619dc2bfb9f15ac2ed44d653336", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1de9ee3080d1801bd2cf09cd297b2ebce996d619dc2bfb9f15ac2ed44d653336", kill_on_drop: false }`
[INFO] [stdout] 1de9ee3080d1801bd2cf09cd297b2ebce996d619dc2bfb9f15ac2ed44d653336
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40efbf785a43998dbd1790509ef11dc02512cbba2ea5bcc4a41b6791da1d6e1b
[INFO] running `Command { std: "docker" "start" "-a" "40efbf785a43998dbd1790509ef11dc02512cbba2ea5bcc4a41b6791da1d6e1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking rust_fft v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `fft`
[INFO] [stdout]  --> src/fft_algorithm.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |  pub fn fft(signal: &Vec<Complex64>) -> Vec<Complex64> {
[INFO] [stdout]   |         ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ifft`
[INFO] [stdout]   --> src/fft_algorithm.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn ifft(signal: &Vec<Complex64>) -> Vec<Complex64> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `fft_algorithm`
[INFO] [stdout]   --> src/fft_algorithm.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn fft_algorithm(signal: &Vec<Complex64>, d: f64) -> Vec<Complex64> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `new_complex_vector_from_float_vector`
[INFO] [stdout]  --> src/product_of_polynomials.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn new_complex_vector_from_float_vector(vector: &Vec<f64>, size: usize) -> Vec<Complex64> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_new_size_power_of_two`
[INFO] [stdout]   --> src/product_of_polynomials.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn find_new_size_power_of_two(bigger_exp: usize) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `product_of_polynomials`
[INFO] [stdout]   --> src/product_of_polynomials.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn product_of_polynomials(f_x: &Vec<f64>, g_x: &Vec<f64>) -> Vec<f64> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.04s
[INFO] running `Command { std: "docker" "inspect" "40efbf785a43998dbd1790509ef11dc02512cbba2ea5bcc4a41b6791da1d6e1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40efbf785a43998dbd1790509ef11dc02512cbba2ea5bcc4a41b6791da1d6e1b", kill_on_drop: false }`
[INFO] [stdout] 40efbf785a43998dbd1790509ef11dc02512cbba2ea5bcc4a41b6791da1d6e1b