[INFO] cloning repository https://github.com/simbullar/fourier_transforms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/simbullar/fourier_transforms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimbullar%2Ffourier_transforms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimbullar%2Ffourier_transforms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b813d99e03f60c9ae7b98eda3cbfa09ff1c3e90e
[INFO] checking simbullar/fourier_transforms against try#fcfb0ffc7ed7fc631df1136063939ef648434735 for pr-152543
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimbullar%2Ffourier_transforms" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/simbullar/fourier_transforms
[INFO] finished tweaking git repo https://github.com/simbullar/fourier_transforms
[INFO] tweaked toml for git repo https://github.com/simbullar/fourier_transforms written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/simbullar/fourier_transforms on toolchain fcfb0ffc7ed7fc631df1136063939ef648434735
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/simbullar/fourier_transforms 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" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "inspect" "1541085bdd52d87eaf51d66f36f129706233c3d5c2c1df889efca581e72d732e", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3c6ebeb7832b76b89643f0c84d1b7dbd7c6cc32970745891fc65351f1742c09
[INFO] running `Command { std: "docker" "start" "-a" "f3c6ebeb7832b76b89643f0c84d1b7dbd7c6cc32970745891fc65351f1742c09", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.6
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling zerocopy v0.8.30
[INFO] [stderr]     Checking arrayvec v0.7.6
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[INFO] [stderr]     Checking fax v0.2.6
[INFO] [stderr]     Checking moxcms v0.7.9
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[INFO] [stderr]     Checking FFT v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/DFT.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let mut column: Vec<(f64, f64)> = (0..rows).map(|y| output[y][x]).collect();
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/FFT.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut output: Vec<(f64, f64)> = vec![(0.0, 0.0); input.len()];
[INFO] [stdout]   |         ----^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/FFT.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let input = vec![(1., 0.), (1., 0.), (1., 0.), (1., 0.)];
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dft_result`
[INFO] [stdout]   --> src/image_test.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let dft_result = DFT::dft_2d(image_representation); // or fft_2d
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dft_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/DFT.rs:61:4
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fft` is never used
[INFO] [stdout]  --> src/FFT.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn fft(input: Vec<(f64, f64)>) -> Vec<(f64, f64)> {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/FFT.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `DFT` should have a snake case name
[INFO] [stdout]  --> src/image_test.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | mod DFT;
[INFO] [stdout]   |     ^^^ help: convert the identifier to snake case: `dft`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `FFT` should have a snake case name
[INFO] [stdout]  --> src/image_test.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | mod FFT;
[INFO] [stdout]   |     ^^^ help: convert the identifier to snake case: `fft`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/FFT.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut output: Vec<(f64, f64)> = vec![(0.0, 0.0); input.len()];
[INFO] [stdout]   |         ----^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/FFT.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let input = vec![(1., 0.), (1., 0.), (1., 0.), (1., 0.)];
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fft` is never used
[INFO] [stdout]  --> src/FFT.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn fft(input: Vec<(f64, f64)>) -> Vec<(f64, f64)> {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/FFT.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut output: Vec<(f64, f64)> = vec![(0.0, 0.0); input.len()];
[INFO] [stdout]   |         ----^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/FFT.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let input = vec![(1., 0.), (1., 0.), (1., 0.), (1., 0.)];
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fft` is never used
[INFO] [stdout]  --> src/FFT.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn fft(input: Vec<(f64, f64)>) -> Vec<(f64, f64)> {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/DFT.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let mut column: Vec<(f64, f64)> = (0..rows).map(|y| output[y][x]).collect();
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/DFT.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let mut column: Vec<(f64, f64)> = (0..rows).map(|y| output[y][x]).collect();
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/DFT.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let mut column: Vec<(f64, f64)> = (0..rows).map(|y| output[y][x]).collect();
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/FFT.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut output: Vec<(f64, f64)> = vec![(0.0, 0.0); input.len()];
[INFO] [stdout]   |         ----^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/FFT.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let input = vec![(1., 0.), (1., 0.), (1., 0.), (1., 0.)];
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dft_result`
[INFO] [stdout]   --> src/image_test.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let dft_result = DFT::dft_2d(image_representation); // or fft_2d
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dft_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/DFT.rs:61:4
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fft` is never used
[INFO] [stdout]  --> src/FFT.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn fft(input: Vec<(f64, f64)>) -> Vec<(f64, f64)> {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/FFT.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `DFT` should have a snake case name
[INFO] [stdout]  --> src/image_test.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | mod DFT;
[INFO] [stdout]   |     ^^^ help: convert the identifier to snake case: `dft`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `FFT` should have a snake case name
[INFO] [stdout]  --> src/image_test.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | mod FFT;
[INFO] [stdout]   |     ^^^ help: convert the identifier to snake case: `fft`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 33.61s
[INFO] running `Command { std: "docker" "inspect" "f3c6ebeb7832b76b89643f0c84d1b7dbd7c6cc32970745891fc65351f1742c09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3c6ebeb7832b76b89643f0c84d1b7dbd7c6cc32970745891fc65351f1742c09", kill_on_drop: false }`
[INFO] [stdout] f3c6ebeb7832b76b89643f0c84d1b7dbd7c6cc32970745891fc65351f1742c09
