[INFO] cloning repository https://github.com/howeih/Day-55-Quincunx
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/howeih/Day-55-Quincunx" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoweih%2FDay-55-Quincunx", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoweih%2FDay-55-Quincunx'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec3301cb7c8f55c7d75379e1449de28a1cd20dc8
[INFO] checking howeih/Day-55-Quincunx against master#4eb62535fc12dd1a63fd43a4173e224e79313c4d for pr-158816
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoweih%2FDay-55-Quincunx" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/howeih/Day-55-Quincunx
[INFO] finished tweaking git repo https://github.com/howeih/Day-55-Quincunx
[INFO] tweaked toml for git repo https://github.com/howeih/Day-55-Quincunx written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/howeih/Day-55-Quincunx on toolchain 4eb62535fc12dd1a63fd43a4173e224e79313c4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/howeih/Day-55-Quincunx 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" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-complex v0.2.1
[INFO] [stderr]   Downloaded gnuplot v0.0.31
[INFO] [stderr]   Downloaded itertools v0.7.11
[INFO] [stderr]   Downloaded ndarray v0.12.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 33480aaa1f5365df9df59e6795201e9687ed953ce5e8e54827083b8a868da630
[INFO] running `Command { std: "docker" "start" "33480aaa1f5365df9df59e6795201e9687ed953ce5e8e54827083b8a868da630", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33480aaa1f5365df9df59e6795201e9687ed953ce5e8e54827083b8a868da630", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "33480aaa1f5365df9df59e6795201e9687ed953ce5e8e54827083b8a868da630" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33480aaa1f5365df9df59e6795201e9687ed953ce5e8e54827083b8a868da630", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "33480aaa1f5365df9df59e6795201e9687ed953ce5e8e54827083b8a868da630" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking either v1.5.1
[INFO] [stderr]     Checking gnuplot v0.0.31
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking quincunx v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/main.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |         buckets[(p)] += 1.;
[INFO] [stdout]    |                 ^ ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 -         buckets[(p)] += 1.;
[INFO] [stdout] 12 +         buckets[p] += 1.;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/main.rs:55:29
[INFO] [stdout]    |
[INFO] [stdout] 55 |         balls.column_mut(1)[(y as usize)] = 0.;
[INFO] [stdout]    |                             ^          ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 55 -         balls.column_mut(1)[(y as usize)] = 0.;
[INFO] [stdout] 55 +         balls.column_mut(1)[y as usize] = 0.;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/main.rs:59:29
[INFO] [stdout]    |
[INFO] [stdout] 59 |         balls.column_mut(0)[(i)] = *x1_itr;
[INFO] [stdout]    |                             ^ ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 59 -         balls.column_mut(0)[(i)] = *x1_itr;
[INFO] [stdout] 59 +         balls.column_mut(0)[i] = *x1_itr;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]    --> src/main.rs:94:10
[INFO] [stdout]     |
[INFO] [stdout]  94 |     let (mut x, mut y) = animate_quincunx(1., &balls);
[INFO] [stdout]     |          ^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 101 |         x = q.0;
[INFO] [stdout]     |         - `x` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `y` is never read
[INFO] [stdout]    --> src/main.rs:94:17
[INFO] [stdout]     |
[INFO] [stdout]  94 |     let (mut x, mut y) = animate_quincunx(1., &balls);
[INFO] [stdout]     |                 ^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 102 |         y = q.1;
[INFO] [stdout]     |         - `y` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/main.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |         buckets[(p)] += 1.;
[INFO] [stdout]    |                 ^ ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 -         buckets[(p)] += 1.;
[INFO] [stdout] 12 +         buckets[p] += 1.;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/main.rs:55:29
[INFO] [stdout]    |
[INFO] [stdout] 55 |         balls.column_mut(1)[(y as usize)] = 0.;
[INFO] [stdout]    |                             ^          ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 55 -         balls.column_mut(1)[(y as usize)] = 0.;
[INFO] [stdout] 55 +         balls.column_mut(1)[y as usize] = 0.;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/main.rs:59:29
[INFO] [stdout]    |
[INFO] [stdout] 59 |         balls.column_mut(0)[(i)] = *x1_itr;
[INFO] [stdout]    |                             ^ ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 59 -         balls.column_mut(0)[(i)] = *x1_itr;
[INFO] [stdout] 59 +         balls.column_mut(0)[i] = *x1_itr;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]    --> src/main.rs:94:10
[INFO] [stdout]     |
[INFO] [stdout]  94 |     let (mut x, mut y) = animate_quincunx(1., &balls);
[INFO] [stdout]     |          ^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 101 |         x = q.0;
[INFO] [stdout]     |         - `x` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `y` is never read
[INFO] [stdout]    --> src/main.rs:94:17
[INFO] [stdout]     |
[INFO] [stdout]  94 |     let (mut x, mut y) = animate_quincunx(1., &balls);
[INFO] [stdout]     |                 ^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 102 |         y = q.1;
[INFO] [stdout]     |         - `y` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.07s
[INFO] running `Command { std: "docker" "inspect" "33480aaa1f5365df9df59e6795201e9687ed953ce5e8e54827083b8a868da630", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33480aaa1f5365df9df59e6795201e9687ed953ce5e8e54827083b8a868da630", kill_on_drop: false }`
[INFO] [stdout] 33480aaa1f5365df9df59e6795201e9687ed953ce5e8e54827083b8a868da630
