[INFO] cloning repository https://github.com/BenBean18/linear_crabs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BenBean18/linear_crabs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenBean18%2Flinear_crabs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenBean18%2Flinear_crabs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d459e0dcdc53a24fe8b8ea35b4f4d0673a56a6fb
[INFO] checking BenBean18/linear_crabs against master#a26e97be8826d408309fffbd8168362365719f50 for pr-136776
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenBean18%2Flinear_crabs" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BenBean18/linear_crabs on toolchain a26e97be8826d408309fffbd8168362365719f50
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BenBean18/linear_crabs
[INFO] finished tweaking git repo https://github.com/BenBean18/linear_crabs
[INFO] tweaked toml for git repo https://github.com/BenBean18/linear_crabs written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/BenBean18/linear_crabs 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" "+a26e97be8826d408309fffbd8168362365719f50" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2bd9279a8ab52e596407f7df3342213c5c46196dc47e390b4db405b00eb88842
[INFO] running `Command { std: "docker" "start" "-a" "2bd9279a8ab52e596407f7df3342213c5c46196dc47e390b4db405b00eb88842", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bd9279a8ab52e596407f7df3342213c5c46196dc47e390b4db405b00eb88842", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bd9279a8ab52e596407f7df3342213c5c46196dc47e390b4db405b00eb88842", kill_on_drop: false }`
[INFO] [stdout] 2bd9279a8ab52e596407f7df3342213c5c46196dc47e390b4db405b00eb88842
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c2699bc8c6a83a35893eec113e72a4e5fa46c2b625b59028a36c3d4eaffafc9
[INFO] running `Command { std: "docker" "start" "-a" "9c2699bc8c6a83a35893eec113e72a4e5fa46c2b625b59028a36c3d4eaffafc9", kill_on_drop: false }`
[INFO] [stderr]     Checking linear_crabs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/math.rs:245:25
[INFO] [stdout]     |
[INFO] [stdout] 245 |             mat[i][j] = (rng.gen::<i8>() as f64);
[INFO] [stdout]     |                         ^                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 245 -             mat[i][j] = (rng.gen::<i8>() as f64);
[INFO] [stdout] 245 +             mat[i][j] = rng.gen::<i8>() as f64;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/math.rs:247:21
[INFO] [stdout]     |
[INFO] [stdout] 247 |         mat[i].push((rng.gen::<i8>() as f64));
[INFO] [stdout]     |                     ^                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 247 -         mat[i].push((rng.gen::<i8>() as f64));
[INFO] [stdout] 247 +         mat[i].push(rng.gen::<i8>() as f64);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/math.rs:245:25
[INFO] [stdout]     |
[INFO] [stdout] 245 |             mat[i][j] = (rng.gen::<i8>() as f64);
[INFO] [stdout]     |                         ^                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 245 -             mat[i][j] = (rng.gen::<i8>() as f64);
[INFO] [stdout] 245 +             mat[i][j] = rng.gen::<i8>() as f64;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/math.rs:247:21
[INFO] [stdout]     |
[INFO] [stdout] 247 |         mat[i].push((rng.gen::<i8>() as f64));
[INFO] [stdout]     |                     ^                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 247 -         mat[i].push((rng.gen::<i8>() as f64));
[INFO] [stdout] 247 +         mat[i].push(rng.gen::<i8>() as f64);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `pivot` is never read
[INFO] [stdout]   --> src/math.rs:88:13
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let mut pivot = 0.;
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/math.rs:262:25
[INFO] [stdout]     |
[INFO] [stdout] 262 | pub(crate) fn unaugment(mut a: Vec<Vec<f64>>) -> Vec<Vec<f64>> {
[INFO] [stdout]     |                         ----^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `matmul` is never used
[INFO] [stdout]  --> src/math.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) fn matmul(a: Vec<Vec<f64>>, b: Vec<Vec<f64>>) -> Vec<Vec<f64>> { // O(n^3)
[INFO] [stdout]   |               ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `empty` is never used
[INFO] [stdout]   --> src/math.rs:70:15
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub(crate) fn empty(n: usize) -> Vec<Vec<f64>> {
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `random` is never used
[INFO] [stdout]    --> src/math.rs:240:15
[INFO] [stdout]     |
[INFO] [stdout] 240 | pub(crate) fn random(n: usize) -> Vec<Vec<f64>> {
[INFO] [stdout]     |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `pivot` is never read
[INFO] [stdout]   --> src/math.rs:88:13
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let mut pivot = 0.;
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/math.rs:262:25
[INFO] [stdout]     |
[INFO] [stdout] 262 | pub(crate) fn unaugment(mut a: Vec<Vec<f64>>) -> Vec<Vec<f64>> {
[INFO] [stdout]     |                         ----^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `matmul` is never used
[INFO] [stdout]  --> src/math.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) fn matmul(a: Vec<Vec<f64>>, b: Vec<Vec<f64>>) -> Vec<Vec<f64>> { // O(n^3)
[INFO] [stdout]   |               ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `empty` is never used
[INFO] [stdout]   --> src/math.rs:70:15
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub(crate) fn empty(n: usize) -> Vec<Vec<f64>> {
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `random` is never used
[INFO] [stdout]    --> src/math.rs:240:15
[INFO] [stdout]     |
[INFO] [stdout] 240 | pub(crate) fn random(n: usize) -> Vec<Vec<f64>> {
[INFO] [stdout]     |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "9c2699bc8c6a83a35893eec113e72a4e5fa46c2b625b59028a36c3d4eaffafc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c2699bc8c6a83a35893eec113e72a4e5fa46c2b625b59028a36c3d4eaffafc9", kill_on_drop: false }`
[INFO] [stdout] 9c2699bc8c6a83a35893eec113e72a4e5fa46c2b625b59028a36c3d4eaffafc9
