[INFO] cloning repository https://github.com/PatrickAulbach/arnolid_method
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PatrickAulbach/arnolid_method" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPatrickAulbach%2Farnolid_method", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPatrickAulbach%2Farnolid_method'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2dac34ac7b37b61f6716860d2a2d92f3b5569579
[INFO] checking PatrickAulbach/arnolid_method against try#b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 for pr-78363
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPatrickAulbach%2Farnolid_method" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PatrickAulbach/arnolid_method on toolchain b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/PatrickAulbach/arnolid_method
[INFO] finished tweaking git repo https://github.com/PatrickAulbach/arnolid_method
[INFO] tweaked toml for git repo https://github.com/PatrickAulbach/arnolid_method written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/PatrickAulbach/arnolid_method already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c195b8f4ecdc13ca8f40c6f37af64c979ad065b032ba6660b4466cc20498352
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5c195b8f4ecdc13ca8f40c6f37af64c979ad065b032ba6660b4466cc20498352", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c195b8f4ecdc13ca8f40c6f37af64c979ad065b032ba6660b4466cc20498352", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c195b8f4ecdc13ca8f40c6f37af64c979ad065b032ba6660b4466cc20498352", kill_on_drop: false }`
[INFO] [stdout] 5c195b8f4ecdc13ca8f40c6f37af64c979ad065b032ba6660b4466cc20498352
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0e99529b050a30722373db13bf850ecbf6ac2e641523e1e918973ab16475b4d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e0e99529b050a30722373db13bf850ecbf6ac2e641523e1e918973ab16475b4d", kill_on_drop: false }`
[INFO] [stderr]     Checking assert_approx_eq v1.1.0
[INFO] [stderr]     Checking arnolid_method v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::path::Path;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::path::Path;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `vector_addition_subtraction`
[INFO] [stdout]  --> src/vector_operations/vector_operations.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub fn vector_addition_subtraction(first_vector: &mut Vec<f64>, second_vector: &Vec<f64>, is_subtraction: bool) {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `euclidean_norm`
[INFO] [stdout]   --> src/vector_operations/vector_operations.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn euclidean_norm(vector: &Vec<f64>) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `scalar_vector_multiplication`
[INFO] [stdout]   --> src/vector_operations/vector_operations.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn scalar_vector_multiplication(scalar: f64, vector: &Vec<f64>) -> Vec<f64> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `scalar_product`
[INFO] [stdout]   --> src/vector_operations/vector_operations.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn scalar_product(first_vector: &Vec<f64>, second_vector: &Vec<f64>) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gram_schmidt`
[INFO] [stdout]   --> src/vector_operations/vector_operations.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn gram_schmidt(base_vector_matrix: &mut Vec<Vec<f64>>, hessenberg_matrix: &mut Vec<Vec<f64>>, iteration_count: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `matrix_vector_multiplication`
[INFO] [stdout]  --> src/matrix_vector_operations/matrix_vector_operations.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn matrix_vector_multiplication(matrix: &Matrix, vector: &Vec<f64>, solution: &mut Vec<f64>) {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_matrix_from_file`
[INFO] [stdout]   --> src/matrix_vector_operations/matrix_vector_operations.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn read_matrix_from_file(path: &Path) -> Matrix {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Matrix`
[INFO] [stdout]  --> src/matrix/matrix.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Matrix {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/matrix/matrix.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub(crate) fn new(columns: usize, rows: usize, data: Vec<Vec<f64>>) -> Self {
[INFO] [stdout]   |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_matrix`
[INFO] [stdout]   --> src/matrix/matrix.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn get_matrix(&self) -> Vec<Vec<f64>> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_column_len`
[INFO] [stdout]   --> src/matrix/matrix.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn get_column_len(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_row_len`
[INFO] [stdout]   --> src/matrix/matrix.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn get_row_len(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `arnoldi_method`
[INFO] [stdout]  --> src/arnoldi_method.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn arnoldi_method(path: &Path, right_hand_side: &Vec<f64>, krylov_subspace_dimension: usize) -> Vec<Vec<f64>> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/matrix_vector_operations/matrix_vector_operations.rs:61:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |             for i in 0..matrix.get_row_len() {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "e0e99529b050a30722373db13bf850ecbf6ac2e641523e1e918973ab16475b4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0e99529b050a30722373db13bf850ecbf6ac2e641523e1e918973ab16475b4d", kill_on_drop: false }`
[INFO] [stdout] e0e99529b050a30722373db13bf850ecbf6ac2e641523e1e918973ab16475b4d