[INFO] fetching crate sukker 2.1.3...
[INFO] building sukker-2.1.3 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate sukker 2.1.3 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate sukker 2.1.3
[INFO] finished tweaking crates.io crate sukker 2.1.3
[INFO] tweaked toml for crates.io crate sukker 2.1.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sukker 2.1.3 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sukker 2.1.3 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap v4.3.3
[INFO] [stderr]   Downloaded clap_builder v4.3.3
[INFO] [stderr]   Downloaded rustix v0.37.20
[INFO] [stderr]   Downloaded web-sys v0.3.63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 626b2587e5fe51b22b88b9989ce39128a6e0bb8338ee29072b6f116c4222840f
[INFO] running `Command { std: "docker" "start" "-a" "626b2587e5fe51b22b88b9989ce39128a6e0bb8338ee29072b6f116c4222840f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "626b2587e5fe51b22b88b9989ce39128a6e0bb8338ee29072b6f116c4222840f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "626b2587e5fe51b22b88b9989ce39128a6e0bb8338ee29072b6f116c4222840f", kill_on_drop: false }`
[INFO] [stdout] 626b2587e5fe51b22b88b9989ce39128a6e0bb8338ee29072b6f116c4222840f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8312741d9b120143973162a5cdbc8d50727e791328ca1450a47576eeaa2361ce
[INFO] running `Command { std: "docker" "start" "-a" "8312741d9b120143973162a5cdbc8d50727e791328ca1450a47576eeaa2361ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.60
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]    Compiling anyhow v1.0.71
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling num_cpus v1.15.0
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rayon v1.7.0
[INFO] [stderr]    Compiling serde_derive v1.0.164
[INFO] [stderr]    Compiling sukker v2.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `IntoParallelIterator` and `IntoParallelRefIterator`
[INFO] [stdout]   --> src/common.rs:15:22
[INFO] [stdout]    |
[INFO] [stdout] 15 | use rayon::prelude::{IntoParallelIterator, IntoParallelRefIterator};
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::Matrix`
[INFO] [stdout]   --> src/common.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use crate::Matrix;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `arch::is_aarch64_feature_detected`
[INFO] [stdout]  --> src/matrix/optim.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{arch::is_aarch64_feature_detected, error::Error, str::FromStr};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `x86-64`
[INFO] [stdout]   --> src/matrix/optim.rs:12:36
[INFO] [stdout]    |
[INFO] [stdout] 12 |     #[cfg(any(target_arch = "x86", target_arch = "x86-64"))]
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^--------
[INFO] [stdout]    |                                                  |
[INFO] [stdout]    |                                                  help: there is a expected value with a similar name: `"x86_64"`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `target_arch` are: `aarch64`, `amdgpu`, `arm`, `arm64ec`, `avr`, `bpf`, `csky`, `hexagon`, `loongarch32`, `loongarch64`, `m68k`, `mips`, `mips32r6`, `mips64`, `mips64r6`, `msp430`, `nvptx64`, `powerpc`, `powerpc64`, `riscv32`, `riscv64`, `s390x`, `sparc`, `sparc64`, `wasm32`, `wasm64`, `x86`, `x86_64`, and `xtensa`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `_MM_HINT_NTA`, `__m128d`, `_mm256_add_epi64`, `_mm_add_pd`, `_mm_load_pd`, `_mm_mul_pd`, `_mm_prefetch`, `_mm_store_pd`, and `_mm_unpacklo_pd`
[INFO] [stdout]   --> src/matrix/optim.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         __m128d, _mm256_add_epi64, _mm_add_pd, _mm_load_pd, _mm_mul_pd, _mm_prefetch, _mm_store_pd,
[INFO] [stdout]    |         ^^^^^^^  ^^^^^^^^^^^^^^^^  ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 51 |         _mm_unpacklo_pd, _MM_HINT_NTA,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `at`
[INFO] [stdout]   --> src/macros.rs:24:16
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub(crate) use at;
[INFO] [stdout]    |                ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `smd`
[INFO] [stdout]   --> src/macros.rs:25:16
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub(crate) use smd;
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `real::Real`
[INFO] [stdout]   --> src/matrix/mod.rs:23:23
[INFO] [stdout]    |
[INFO] [stdout] 23 | use num_traits::{pow, real::Real, sign::abs, Float};
[INFO] [stdout]    |                       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/matrix/helper.rs:229:21
[INFO] [stdout]     |
[INFO] [stdout] 229 |     fn summa(&self, other: &Self, block_size: usize) -> Self {
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block_size`
[INFO] [stdout]    --> src/matrix/helper.rs:229:35
[INFO] [stdout]     |
[INFO] [stdout] 229 |     fn summa(&self, other: &Self, block_size: usize) -> Self {
[INFO] [stdout]     |                                   ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_block_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]  --> src/matrix/optim.rs:7:32
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn get_optimized_matmul<T>(lhs: Matrix<T>, other: Matrix<T>)
[INFO] [stdout]   |                                ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]  --> src/matrix/optim.rs:7:48
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn get_optimized_matmul<T>(lhs: Matrix<T>, other: Matrix<T>)
[INFO] [stdout]   |                                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]   --> src/matrix/optim.rs:41:29
[INFO] [stdout]    |
[INFO] [stdout] 41 | unsafe fn avx_matmul<'a, T>(lhs: &Matrix<'a, T>, other: &Matrix<'a, T>) -> Matrix<'a, T>
[INFO] [stdout]    |                             ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/matrix/optim.rs:41:50
[INFO] [stdout]    |
[INFO] [stdout] 41 | unsafe fn avx_matmul<'a, T>(lhs: &Matrix<'a, T>, other: &Matrix<'a, T>) -> Matrix<'a, T>
[INFO] [stdout]    |                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/matrix/mod.rs:987:21
[INFO] [stdout]     |
[INFO] [stdout] 987 |                 let mut highest: T = T::one();
[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/matrix/mod.rs:1010:21
[INFO] [stdout]      |
[INFO] [stdout] 1010 |                 let mut highest: T = T::one();
[INFO] [stdout]      |                     ----^^^^^^^
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/matrix/mod.rs:1053:21
[INFO] [stdout]      |
[INFO] [stdout] 1053 |                 let mut lowest: T = T::zero();
[INFO] [stdout]      |                     ----^^^^^^
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/matrix/mod.rs:1077:21
[INFO] [stdout]      |
[INFO] [stdout] 1077 |                 let mut lowest: T = T::zero();
[INFO] [stdout]      |                     ----^^^^^^
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `argmax` and `argmin` are never used
[INFO] [stdout]     --> src/matrix/mod.rs:980:8
[INFO] [stdout]      |
[INFO] [stdout]  575 | / impl<'a, T> Matrix<'a, T>
[INFO] [stdout]  576 | | where
[INFO] [stdout]  577 | |     T: MatrixElement + Div<Output = T> + Sum<T>,
[INFO] [stdout]  578 | |     <T as FromStr>::Err: Error + 'static,
[INFO] [stdout]  579 | |     Vec<T>: IntoParallelIterator,
[INFO] [stdout]  580 | |     Vec<&'a T>: IntoParallelRefIterator<'a>,
[INFO] [stdout]      | |____________________________________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  980 |       fn argmax(&self, rowcol: usize, dimension: Dimension) -> Option<Shape> {
[INFO] [stdout]      |          ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1046 |       fn argmin(&self, rowcol: usize, dimension: Dimension) -> Option<Shape> {
[INFO] [stdout]      |          ^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `summa` and `naive` are never used
[INFO] [stdout]    --> src/matrix/helper.rs:229:8
[INFO] [stdout]     |
[INFO] [stdout]  14 | / impl<'a, T> Matrix<'a, T>
[INFO] [stdout]  15 | | where
[INFO] [stdout]  16 | |     T: MatrixElement + 'a,
[INFO] [stdout]  17 | |     <T as FromStr>::Err: Error + 'static,
[INFO] [stdout]  18 | |     Vec<T>: IntoParallelIterator,
[INFO] [stdout]  19 | |     Vec<&'a T>: IntoParallelRefIterator<'a>,
[INFO] [stdout]     | |____________________________________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 229 |       fn summa(&self, other: &Self, block_size: usize) -> Self {
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 235 |       fn naive(&self, other: &Self) -> Self {
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_optimized_matmul` is never used
[INFO] [stdout]  --> src/matrix/optim.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn get_optimized_matmul<T>(lhs: Matrix<T>, other: Matrix<T>)
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `avx_matmul` is never used
[INFO] [stdout]   --> src/matrix/optim.rs:41:11
[INFO] [stdout]    |
[INFO] [stdout] 41 | unsafe fn avx_matmul<'a, T>(lhs: &Matrix<'a, T>, other: &Matrix<'a, T>) -> Matrix<'a, T>
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `find_all` and `positions` are never used
[INFO] [stdout]     --> src/sparse/mod.rs:1415:8
[INFO] [stdout]      |
[INFO] [stdout] 1288 | / impl<'a, T> SparseMatrix<'a, T>
[INFO] [stdout] 1289 | | where
[INFO] [stdout] 1290 | |     T: MatrixElement,
[INFO] [stdout] 1291 | |     <T as FromStr>::Err: Error + 'static,
[INFO] [stdout] 1292 | |     Vec<T>: IntoParallelIterator,
[INFO] [stdout] 1293 | |     Vec<&'a T>: IntoParallelRefIterator<'a>,
[INFO] [stdout]      | |____________________________________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 1415 |       fn find_all<F>(&self, pred: F) -> Option<Vec<T>>
[INFO] [stdout]      |          ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1458 |       fn positions<F>(&self, pred: F) -> Option<Vec<Shape>>
[INFO] [stdout]      |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/matrix/mod.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |         write!(f, "[");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 119 |         let _ = write!(f, "[");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/matrix/mod.rs:123:13
[INFO] [stdout]     |
[INFO] [stdout] 123 |             write!(f, "...");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 123 |             let _ = write!(f, "...");
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/matrix/mod.rs:129:21
[INFO] [stdout]     |
[INFO] [stdout] 129 |                     write!(f, "{:.4} ", self.get(i, j).unwrap());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 129 |                     let _ = write!(f, "{:.4} ", self.get(i, j).unwrap());
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/matrix/mod.rs:131:21
[INFO] [stdout]     |
[INFO] [stdout] 131 |                     write!(f, " {:.4}", self.get(i, j).unwrap());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 131 |                     let _ = write!(f, " {:.4}", self.get(i, j).unwrap());
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/matrix/mod.rs:138:13
[INFO] [stdout]     |
[INFO] [stdout] 138 |             writeln!(f);
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 138 |             let _ = writeln!(f);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M` should have a snake case name
[INFO] [stdout]    --> src/matrix/helper.rs:194:13
[INFO] [stdout]     |
[INFO] [stdout] 194 |         let M = self.nrows;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `m`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]    --> src/matrix/helper.rs:195:13
[INFO] [stdout]     |
[INFO] [stdout] 195 |         let N = self.ncols;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `P` should have a snake case name
[INFO] [stdout]    --> src/matrix/helper.rs:196:13
[INFO] [stdout]     |
[INFO] [stdout] 196 |         let P = other.ncols;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M` should have a snake case name
[INFO] [stdout]    --> src/matrix/helper.rs:236:13
[INFO] [stdout]     |
[INFO] [stdout] 236 |         let M = self.nrows;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]    --> src/matrix/helper.rs:237:13
[INFO] [stdout]     |
[INFO] [stdout] 237 |         let N = self.ncols;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `P` should have a snake case name
[INFO] [stdout]    --> src/matrix/helper.rs:238:13
[INFO] [stdout]     |
[INFO] [stdout] 238 |         let P = other.ncols;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/sparse/mod.rs:137:17
[INFO] [stdout]     |
[INFO] [stdout] 137 |                 write!(f, "{elem} ");
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 137 |                 let _ = write!(f, "{elem} ");
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/sparse/mod.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 |             writeln!(f);
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 139 |             let _ = writeln!(f);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]    --> src/sparse/helper.rs:112:13
[INFO] [stdout]     |
[INFO] [stdout] 112 |         let N = self.nrows;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.06s
[INFO] running `Command { std: "docker" "inspect" "8312741d9b120143973162a5cdbc8d50727e791328ca1450a47576eeaa2361ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8312741d9b120143973162a5cdbc8d50727e791328ca1450a47576eeaa2361ce", kill_on_drop: false }`
[INFO] [stdout] 8312741d9b120143973162a5cdbc8d50727e791328ca1450a47576eeaa2361ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 287cd936c4f37b323e46a4bda55d014cdb29c6c4afc10cd64a64d426351cc0dd
[INFO] running `Command { std: "docker" "start" "-a" "287cd936c4f37b323e46a4bda55d014cdb29c6c4afc10cd64a64d426351cc0dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling rustix v0.37.20
[INFO] [stderr]    Compiling clap_lex v0.5.0
[INFO] [stderr]    Compiling ciborium-io v0.2.1
[INFO] [stderr]    Compiling anstyle v1.0.0
[INFO] [stderr]    Compiling plotters-svg v0.3.3
[INFO] [stderr]    Compiling regex-syntax v0.7.2
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling walkdir v2.3.3
[INFO] [stderr]    Compiling ciborium-ll v0.2.1
[INFO] [stderr]    Compiling plotters v0.3.4
[INFO] [stderr]    Compiling clap_builder v4.3.3
[INFO] [stderr]    Compiling regex v1.8.4
[INFO] [stderr]    Compiling num_cpus v1.15.0
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling clap v4.3.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rayon v1.7.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling is-terminal v0.4.7
[INFO] [stderr]    Compiling ciborium v0.2.1
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling sukker v2.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `IntoParallelIterator` and `IntoParallelRefIterator`
[INFO] [stdout]   --> src/common.rs:15:22
[INFO] [stdout]    |
[INFO] [stdout] 15 | use rayon::prelude::{IntoParallelIterator, IntoParallelRefIterator};
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::Matrix`
[INFO] [stdout]   --> src/common.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use crate::Matrix;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `arch::is_aarch64_feature_detected`
[INFO] [stdout]  --> src/matrix/optim.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{arch::is_aarch64_feature_detected, error::Error, str::FromStr};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `x86-64`
[INFO] [stdout]   --> src/matrix/optim.rs:12:36
[INFO] [stdout]    |
[INFO] [stdout] 12 |     #[cfg(any(target_arch = "x86", target_arch = "x86-64"))]
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^--------
[INFO] [stdout]    |                                                  |
[INFO] [stdout]    |                                                  help: there is a expected value with a similar name: `"x86_64"`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `target_arch` are: `aarch64`, `amdgpu`, `arm`, `arm64ec`, `avr`, `bpf`, `csky`, `hexagon`, `loongarch32`, `loongarch64`, `m68k`, `mips`, `mips32r6`, `mips64`, `mips64r6`, `msp430`, `nvptx64`, `powerpc`, `powerpc64`, `riscv32`, `riscv64`, `s390x`, `sparc`, `sparc64`, `wasm32`, `wasm64`, `x86`, `x86_64`, and `xtensa`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `_MM_HINT_NTA`, `__m128d`, `_mm256_add_epi64`, `_mm_add_pd`, `_mm_load_pd`, `_mm_mul_pd`, `_mm_prefetch`, `_mm_store_pd`, and `_mm_unpacklo_pd`
[INFO] [stdout]   --> src/matrix/optim.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         __m128d, _mm256_add_epi64, _mm_add_pd, _mm_load_pd, _mm_mul_pd, _mm_prefetch, _mm_store_pd,
[INFO] [stdout]    |         ^^^^^^^  ^^^^^^^^^^^^^^^^  ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 51 |         _mm_unpacklo_pd, _MM_HINT_NTA,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `at`
[INFO] [stdout]   --> src/macros.rs:24:16
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub(crate) use at;
[INFO] [stdout]    |                ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `smd`
[INFO] [stdout]   --> src/macros.rs:25:16
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub(crate) use smd;
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `real::Real`
[INFO] [stdout]   --> src/matrix/mod.rs:23:23
[INFO] [stdout]    |
[INFO] [stdout] 23 | use num_traits::{pow, real::Real, sign::abs, Float};
[INFO] [stdout]    |                       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/matrix/helper.rs:229:21
[INFO] [stdout]     |
[INFO] [stdout] 229 |     fn summa(&self, other: &Self, block_size: usize) -> Self {
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block_size`
[INFO] [stdout]    --> src/matrix/helper.rs:229:35
[INFO] [stdout]     |
[INFO] [stdout] 229 |     fn summa(&self, other: &Self, block_size: usize) -> Self {
[INFO] [stdout]     |                                   ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_block_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]  --> src/matrix/optim.rs:7:32
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn get_optimized_matmul<T>(lhs: Matrix<T>, other: Matrix<T>)
[INFO] [stdout]   |                                ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]  --> src/matrix/optim.rs:7:48
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn get_optimized_matmul<T>(lhs: Matrix<T>, other: Matrix<T>)
[INFO] [stdout]   |                                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]   --> src/matrix/optim.rs:41:29
[INFO] [stdout]    |
[INFO] [stdout] 41 | unsafe fn avx_matmul<'a, T>(lhs: &Matrix<'a, T>, other: &Matrix<'a, T>) -> Matrix<'a, T>
[INFO] [stdout]    |                             ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/matrix/optim.rs:41:50
[INFO] [stdout]    |
[INFO] [stdout] 41 | unsafe fn avx_matmul<'a, T>(lhs: &Matrix<'a, T>, other: &Matrix<'a, T>) -> Matrix<'a, T>
[INFO] [stdout]    |                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/matrix/mod.rs:987:21
[INFO] [stdout]     |
[INFO] [stdout] 987 |                 let mut highest: T = T::one();
[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/matrix/mod.rs:1010:21
[INFO] [stdout]      |
[INFO] [stdout] 1010 |                 let mut highest: T = T::one();
[INFO] [stdout]      |                     ----^^^^^^^
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/matrix/mod.rs:1053:21
[INFO] [stdout]      |
[INFO] [stdout] 1053 |                 let mut lowest: T = T::zero();
[INFO] [stdout]      |                     ----^^^^^^
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/matrix/mod.rs:1077:21
[INFO] [stdout]      |
[INFO] [stdout] 1077 |                 let mut lowest: T = T::zero();
[INFO] [stdout]      |                     ----^^^^^^
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stdout] warning: methods `argmax` and `argmin` are never used
[INFO] [stdout]     --> src/matrix/mod.rs:980:8
[INFO] [stdout]      |
[INFO] [stdout]  575 | / impl<'a, T> Matrix<'a, T>
[INFO] [stdout]  576 | | where
[INFO] [stdout]  577 | |     T: MatrixElement + Div<Output = T> + Sum<T>,
[INFO] [stdout]  578 | |     <T as FromStr>::Err: Error + 'static,
[INFO] [stdout]  579 | |     Vec<T>: IntoParallelIterator,
[INFO] [stdout]  580 | |     Vec<&'a T>: IntoParallelRefIterator<'a>,
[INFO] [stdout]      | |____________________________________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  980 |       fn argmax(&self, rowcol: usize, dimension: Dimension) -> Option<Shape> {
[INFO] [stdout]      |          ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1046 |       fn argmin(&self, rowcol: usize, dimension: Dimension) -> Option<Shape> {
[INFO] [stdout]      |          ^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `summa` and `naive` are never used
[INFO] [stdout]    --> src/matrix/helper.rs:229:8
[INFO] [stdout]     |
[INFO] [stdout]  14 | / impl<'a, T> Matrix<'a, T>
[INFO] [stdout]  15 | | where
[INFO] [stdout]  16 | |     T: MatrixElement + 'a,
[INFO] [stdout]  17 | |     <T as FromStr>::Err: Error + 'static,
[INFO] [stdout]  18 | |     Vec<T>: IntoParallelIterator,
[INFO] [stdout]  19 | |     Vec<&'a T>: IntoParallelRefIterator<'a>,
[INFO] [stdout]     | |____________________________________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 229 |       fn summa(&self, other: &Self, block_size: usize) -> Self {
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 235 |       fn naive(&self, other: &Self) -> Self {
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_optimized_matmul` is never used
[INFO] [stdout]  --> src/matrix/optim.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn get_optimized_matmul<T>(lhs: Matrix<T>, other: Matrix<T>)
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `avx_matmul` is never used
[INFO] [stdout]   --> src/matrix/optim.rs:41:11
[INFO] [stdout]    |
[INFO] [stdout] 41 | unsafe fn avx_matmul<'a, T>(lhs: &Matrix<'a, T>, other: &Matrix<'a, T>) -> Matrix<'a, T>
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `find_all` and `positions` are never used
[INFO] [stdout]     --> src/sparse/mod.rs:1415:8
[INFO] [stdout]      |
[INFO] [stdout] 1288 | / impl<'a, T> SparseMatrix<'a, T>
[INFO] [stdout] 1289 | | where
[INFO] [stdout] 1290 | |     T: MatrixElement,
[INFO] [stdout] 1291 | |     <T as FromStr>::Err: Error + 'static,
[INFO] [stdout] 1292 | |     Vec<T>: IntoParallelIterator,
[INFO] [stdout] 1293 | |     Vec<&'a T>: IntoParallelRefIterator<'a>,
[INFO] [stdout]      | |____________________________________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 1415 |       fn find_all<F>(&self, pred: F) -> Option<Vec<T>>
[INFO] [stdout]      |          ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1458 |       fn positions<F>(&self, pred: F) -> Option<Vec<Shape>>
[INFO] [stdout]      |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/matrix/mod.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |         write!(f, "[");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 119 |         let _ = write!(f, "[");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/matrix/mod.rs:123:13
[INFO] [stdout]     |
[INFO] [stdout] 123 |             write!(f, "...");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 123 |             let _ = write!(f, "...");
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/matrix/mod.rs:129:21
[INFO] [stdout]     |
[INFO] [stdout] 129 |                     write!(f, "{:.4} ", self.get(i, j).unwrap());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 129 |                     let _ = write!(f, "{:.4} ", self.get(i, j).unwrap());
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/matrix/mod.rs:131:21
[INFO] [stdout]     |
[INFO] [stdout] 131 |                     write!(f, " {:.4}", self.get(i, j).unwrap());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 131 |                     let _ = write!(f, " {:.4}", self.get(i, j).unwrap());
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/matrix/mod.rs:138:13
[INFO] [stdout]     |
[INFO] [stdout] 138 |             writeln!(f);
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 138 |             let _ = writeln!(f);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M` should have a snake case name
[INFO] [stdout]    --> src/matrix/helper.rs:194:13
[INFO] [stdout]     |
[INFO] [stdout] 194 |         let M = self.nrows;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `m`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]    --> src/matrix/helper.rs:195:13
[INFO] [stdout]     |
[INFO] [stdout] 195 |         let N = self.ncols;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `P` should have a snake case name
[INFO] [stdout]    --> src/matrix/helper.rs:196:13
[INFO] [stdout]     |
[INFO] [stdout] 196 |         let P = other.ncols;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M` should have a snake case name
[INFO] [stdout]    --> src/matrix/helper.rs:236:13
[INFO] [stdout]     |
[INFO] [stdout] 236 |         let M = self.nrows;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]    --> src/matrix/helper.rs:237:13
[INFO] [stdout]     |
[INFO] [stdout] 237 |         let N = self.ncols;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `P` should have a snake case name
[INFO] [stdout]    --> src/matrix/helper.rs:238:13
[INFO] [stdout]     |
[INFO] [stdout] 238 |         let P = other.ncols;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/sparse/mod.rs:137:17
[INFO] [stdout]     |
[INFO] [stdout] 137 |                 write!(f, "{elem} ");
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 137 |                 let _ = write!(f, "{elem} ");
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/sparse/mod.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 |             writeln!(f);
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 139 |             let _ = writeln!(f);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]    --> src/sparse/helper.rs:112:13
[INFO] [stdout]     |
[INFO] [stdout] 112 |         let N = self.nrows;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `IntoParallelIterator` and `IntoParallelRefIterator`
[INFO] [stdout]   --> src/common.rs:15:22
[INFO] [stdout]    |
[INFO] [stdout] 15 | use rayon::prelude::{IntoParallelIterator, IntoParallelRefIterator};
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::Matrix`
[INFO] [stdout]   --> src/common.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use crate::Matrix;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `arch::is_aarch64_feature_detected`
[INFO] [stdout]  --> src/matrix/optim.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{arch::is_aarch64_feature_detected, error::Error, str::FromStr};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `x86-64`
[INFO] [stdout]   --> src/matrix/optim.rs:12:36
[INFO] [stdout]    |
[INFO] [stdout] 12 |     #[cfg(any(target_arch = "x86", target_arch = "x86-64"))]
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^--------
[INFO] [stdout]    |                                                  |
[INFO] [stdout]    |                                                  help: there is a expected value with a similar name: `"x86_64"`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `target_arch` are: `aarch64`, `amdgpu`, `arm`, `arm64ec`, `avr`, `bpf`, `csky`, `hexagon`, `loongarch32`, `loongarch64`, `m68k`, `mips`, `mips32r6`, `mips64`, `mips64r6`, `msp430`, `nvptx64`, `powerpc`, `powerpc64`, `riscv32`, `riscv64`, `s390x`, `sparc`, `sparc64`, `wasm32`, `wasm64`, `x86`, `x86_64`, and `xtensa`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `_MM_HINT_NTA`, `__m128d`, `_mm256_add_epi64`, `_mm_add_pd`, `_mm_load_pd`, `_mm_mul_pd`, `_mm_prefetch`, `_mm_store_pd`, and `_mm_unpacklo_pd`
[INFO] [stdout]   --> src/matrix/optim.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         __m128d, _mm256_add_epi64, _mm_add_pd, _mm_load_pd, _mm_mul_pd, _mm_prefetch, _mm_store_pd,
[INFO] [stdout]    |         ^^^^^^^  ^^^^^^^^^^^^^^^^  ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 51 |         _mm_unpacklo_pd, _MM_HINT_NTA,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `at`
[INFO] [stdout]   --> src/macros.rs:24:16
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub(crate) use at;
[INFO] [stdout]    |                ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `smd`
[INFO] [stdout]   --> src/macros.rs:25:16
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub(crate) use smd;
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `real::Real`
[INFO] [stdout]   --> src/matrix/mod.rs:23:23
[INFO] [stdout]    |
[INFO] [stdout] 23 | use num_traits::{pow, real::Real, sign::abs, Float};
[INFO] [stdout]    |                       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/matrix/helper.rs:229:21
[INFO] [stdout]     |
[INFO] [stdout] 229 |     fn summa(&self, other: &Self, block_size: usize) -> Self {
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block_size`
[INFO] [stdout]    --> src/matrix/helper.rs:229:35
[INFO] [stdout]     |
[INFO] [stdout] 229 |     fn summa(&self, other: &Self, block_size: usize) -> Self {
[INFO] [stdout]     |                                   ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_block_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]  --> src/matrix/optim.rs:7:32
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn get_optimized_matmul<T>(lhs: Matrix<T>, other: Matrix<T>)
[INFO] [stdout]   |                                ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]  --> src/matrix/optim.rs:7:48
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn get_optimized_matmul<T>(lhs: Matrix<T>, other: Matrix<T>)
[INFO] [stdout]   |                                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]   --> src/matrix/optim.rs:41:29
[INFO] [stdout]    |
[INFO] [stdout] 41 | unsafe fn avx_matmul<'a, T>(lhs: &Matrix<'a, T>, other: &Matrix<'a, T>) -> Matrix<'a, T>
[INFO] [stdout]    |                             ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/matrix/optim.rs:41:50
[INFO] [stdout]    |
[INFO] [stdout] 41 | unsafe fn avx_matmul<'a, T>(lhs: &Matrix<'a, T>, other: &Matrix<'a, T>) -> Matrix<'a, T>
[INFO] [stdout]    |                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/matrix/mod.rs:987:21
[INFO] [stdout]     |
[INFO] [stdout] 987 |                 let mut highest: T = T::one();
[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/matrix/mod.rs:1010:21
[INFO] [stdout]      |
[INFO] [stdout] 1010 |                 let mut highest: T = T::one();
[INFO] [stdout]      |                     ----^^^^^^^
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/matrix/mod.rs:1053:21
[INFO] [stdout]      |
[INFO] [stdout] 1053 |                 let mut lowest: T = T::zero();
[INFO] [stdout]      |                     ----^^^^^^
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/matrix/mod.rs:1077:21
[INFO] [stdout]      |
[INFO] [stdout] 1077 |                 let mut lowest: T = T::zero();
[INFO] [stdout]      |                     ----^^^^^^
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `argmax` and `argmin` are never used
[INFO] [stdout]     --> src/matrix/mod.rs:980:8
[INFO] [stdout]      |
[INFO] [stdout]  575 | / impl<'a, T> Matrix<'a, T>
[INFO] [stdout]  576 | | where
[INFO] [stdout]  577 | |     T: MatrixElement + Div<Output = T> + Sum<T>,
[INFO] [stdout]  578 | |     <T as FromStr>::Err: Error + 'static,
[INFO] [stdout]  579 | |     Vec<T>: IntoParallelIterator,
[INFO] [stdout]  580 | |     Vec<&'a T>: IntoParallelRefIterator<'a>,
[INFO] [stdout]      | |____________________________________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  980 |       fn argmax(&self, rowcol: usize, dimension: Dimension) -> Option<Shape> {
[INFO] [stdout]      |          ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1046 |       fn argmin(&self, rowcol: usize, dimension: Dimension) -> Option<Shape> {
[INFO] [stdout]      |          ^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `summa` and `naive` are never used
[INFO] [stdout]    --> src/matrix/helper.rs:229:8
[INFO] [stdout]     |
[INFO] [stdout]  14 | / impl<'a, T> Matrix<'a, T>
[INFO] [stdout]  15 | | where
[INFO] [stdout]  16 | |     T: MatrixElement + 'a,
[INFO] [stdout]  17 | |     <T as FromStr>::Err: Error + 'static,
[INFO] [stdout]  18 | |     Vec<T>: IntoParallelIterator,
[INFO] [stdout]  19 | |     Vec<&'a T>: IntoParallelRefIterator<'a>,
[INFO] [stdout]     | |____________________________________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 229 |       fn summa(&self, other: &Self, block_size: usize) -> Self {
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 235 |       fn naive(&self, other: &Self) -> Self {
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_optimized_matmul` is never used
[INFO] [stdout]  --> src/matrix/optim.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn get_optimized_matmul<T>(lhs: Matrix<T>, other: Matrix<T>)
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `avx_matmul` is never used
[INFO] [stdout]   --> src/matrix/optim.rs:41:11
[INFO] [stdout]    |
[INFO] [stdout] 41 | unsafe fn avx_matmul<'a, T>(lhs: &Matrix<'a, T>, other: &Matrix<'a, T>) -> Matrix<'a, T>
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `find_all` and `positions` are never used
[INFO] [stdout]     --> src/sparse/mod.rs:1415:8
[INFO] [stdout]      |
[INFO] [stdout] 1288 | / impl<'a, T> SparseMatrix<'a, T>
[INFO] [stdout] 1289 | | where
[INFO] [stdout] 1290 | |     T: MatrixElement,
[INFO] [stdout] 1291 | |     <T as FromStr>::Err: Error + 'static,
[INFO] [stdout] 1292 | |     Vec<T>: IntoParallelIterator,
[INFO] [stdout] 1293 | |     Vec<&'a T>: IntoParallelRefIterator<'a>,
[INFO] [stdout]      | |____________________________________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 1415 |       fn find_all<F>(&self, pred: F) -> Option<Vec<T>>
[INFO] [stdout]      |          ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1458 |       fn positions<F>(&self, pred: F) -> Option<Vec<Shape>>
[INFO] [stdout]      |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/matrix/mod.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |         write!(f, "[");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 119 |         let _ = write!(f, "[");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/matrix/mod.rs:123:13
[INFO] [stdout]     |
[INFO] [stdout] 123 |             write!(f, "...");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 123 |             let _ = write!(f, "...");
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/matrix/mod.rs:129:21
[INFO] [stdout]     |
[INFO] [stdout] 129 |                     write!(f, "{:.4} ", self.get(i, j).unwrap());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 129 |                     let _ = write!(f, "{:.4} ", self.get(i, j).unwrap());
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/matrix/mod.rs:131:21
[INFO] [stdout]     |
[INFO] [stdout] 131 |                     write!(f, " {:.4}", self.get(i, j).unwrap());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 131 |                     let _ = write!(f, " {:.4}", self.get(i, j).unwrap());
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/matrix/mod.rs:138:13
[INFO] [stdout]     |
[INFO] [stdout] 138 |             writeln!(f);
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 138 |             let _ = writeln!(f);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M` should have a snake case name
[INFO] [stdout]    --> src/matrix/helper.rs:194:13
[INFO] [stdout]     |
[INFO] [stdout] 194 |         let M = self.nrows;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `m`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]    --> src/matrix/helper.rs:195:13
[INFO] [stdout]     |
[INFO] [stdout] 195 |         let N = self.ncols;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `P` should have a snake case name
[INFO] [stdout]    --> src/matrix/helper.rs:196:13
[INFO] [stdout]     |
[INFO] [stdout] 196 |         let P = other.ncols;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M` should have a snake case name
[INFO] [stdout]    --> src/matrix/helper.rs:236:13
[INFO] [stdout]     |
[INFO] [stdout] 236 |         let M = self.nrows;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]    --> src/matrix/helper.rs:237:13
[INFO] [stdout]     |
[INFO] [stdout] 237 |         let N = self.ncols;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `P` should have a snake case name
[INFO] [stdout]    --> src/matrix/helper.rs:238:13
[INFO] [stdout]     |
[INFO] [stdout] 238 |         let P = other.ncols;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/sparse/mod.rs:137:17
[INFO] [stdout]     |
[INFO] [stdout] 137 |                 write!(f, "{elem} ");
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 137 |                 let _ = write!(f, "{elem} ");
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/sparse/mod.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 |             writeln!(f);
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 139 |             let _ = writeln!(f);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]    --> src/sparse/helper.rs:112:13
[INFO] [stdout]     |
[INFO] [stdout] 112 |         let N = self.nrows;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 14.43s
[INFO] running `Command { std: "docker" "inspect" "287cd936c4f37b323e46a4bda55d014cdb29c6c4afc10cd64a64d426351cc0dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "287cd936c4f37b323e46a4bda55d014cdb29c6c4afc10cd64a64d426351cc0dd", kill_on_drop: false }`
[INFO] [stdout] 287cd936c4f37b323e46a4bda55d014cdb29c6c4afc10cd64a64d426351cc0dd
