[INFO] cloning repository https://github.com/aek676/markov-chain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aek676/markov-chain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faek676%2Fmarkov-chain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faek676%2Fmarkov-chain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0138a9a796cca6d521756ebfd3931b8706a6a0a3
[INFO] checking aek676/markov-chain against try#ed606620234c6b50f2414162c4bbabd5f4a925f3 for pr-147995
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faek676%2Fmarkov-chain" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/aek676/markov-chain
[INFO] finished tweaking git repo https://github.com/aek676/markov-chain
[INFO] tweaked toml for git repo https://github.com/aek676/markov-chain written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/aek676/markov-chain on toolchain ed606620234c6b50f2414162c4bbabd5f4a925f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ed606620234c6b50f2414162c4bbabd5f4a925f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/aek676/markov-chain 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" "+ed606620234c6b50f2414162c4bbabd5f4a925f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking aek676/markov-chain against try#ed606620234c6b50f2414162c4bbabd5f4a925f3 for pr-147995
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faek676%2Fmarkov-chain" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/aek676/markov-chain
[INFO] finished tweaking git repo https://github.com/aek676/markov-chain
[INFO] tweaked toml for git repo https://github.com/aek676/markov-chain written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/aek676/markov-chain on toolchain ed606620234c6b50f2414162c4bbabd5f4a925f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ed606620234c6b50f2414162c4bbabd5f4a925f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/aek676/markov-chain 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" "+ed606620234c6b50f2414162c4bbabd5f4a925f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_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" "+ed606620234c6b50f2414162c4bbabd5f4a925f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b74dfbbf8b152b3d2fc8cb17009e12ab9f00234c1a274f0916bbd660ab180e8
[INFO] running `Command { std: "docker" "start" "-a" "4b74dfbbf8b152b3d2fc8cb17009e12ab9f00234c1a274f0916bbd660ab180e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b74dfbbf8b152b3d2fc8cb17009e12ab9f00234c1a274f0916bbd660ab180e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b74dfbbf8b152b3d2fc8cb17009e12ab9f00234c1a274f0916bbd660ab180e8", kill_on_drop: false }`
[INFO] [stdout] 4b74dfbbf8b152b3d2fc8cb17009e12ab9f00234c1a274f0916bbd660ab180e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ed606620234c6b50f2414162c4bbabd5f4a925f3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b662bd1cd9f4bb48d636304ba3560fb1478ac5c815f26b348a435c089d114489
[INFO] running `Command { std: "docker" "start" "-a" "b662bd1cd9f4bb48d636304ba3560fb1478ac5c815f26b348a435c089d114489", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]     Checking getrandom v0.3.3
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking markov-chain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: ambiguous glob re-exports
[INFO] [stdout]  --> src/lib.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use crate::collections::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^ the name `markov_chain` in the type namespace is first re-exported here
[INFO] [stdout] 2 | pub use crate::instructions::*;
[INFO] [stdout]   |         ---------------------- but the name `markov_chain` in the type namespace is also re-exported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(ambiguous_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous glob re-exports
[INFO] [stdout]  --> src/lib.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use crate::collections::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^ the name `markov_chain` in the type namespace is first re-exported here
[INFO] [stdout] 2 | pub use crate::instructions::*;
[INFO] [stdout]   |         ---------------------- but the name `markov_chain` in the type namespace is also re-exported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(ambiguous_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]    --> src/collections/markov_chain.rs:125:27
[INFO] [stdout]     |
[INFO] [stdout] 125 |         let mut r = rand::thread_rng().gen_range(0.0..sum);
[INFO] [stdout]     |                           ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]    --> src/collections/markov_chain.rs:125:27
[INFO] [stdout]     |
[INFO] [stdout] 125 |         let mut r = rand::thread_rng().gen_range(0.0..sum);
[INFO] [stdout]     |                           ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]    --> src/collections/markov_chain.rs:125:40
[INFO] [stdout]     |
[INFO] [stdout] 125 |         let mut r = rand::thread_rng().gen_range(0.0..sum);
[INFO] [stdout]     |                                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]    --> src/collections/markov_chain.rs:125:40
[INFO] [stdout]     |
[INFO] [stdout] 125 |         let mut r = rand::thread_rng().gen_range(0.0..sum);
[INFO] [stdout]     |                                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `square_matrix::*`
[INFO] [stdout]  --> src/collections/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use square_matrix::*;
[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: `markov_chain::*`
[INFO] [stdout]  --> src/instructions/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use markov_chain::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `matrix_operations::*`
[INFO] [stdout]  --> src/instructions/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use matrix_operations::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `square_matrix::*`
[INFO] [stdout]  --> src/collections/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use square_matrix::*;
[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: `markov_chain::*`
[INFO] [stdout]  --> src/instructions/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use markov_chain::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `matrix_operations::*`
[INFO] [stdout]  --> src/instructions/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use matrix_operations::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]    --> src/collections/markov_chain.rs:125:27
[INFO] [stdout]     |
[INFO] [stdout] 125 |         let mut r = rand::thread_rng().gen_range(0.0..sum);
[INFO] [stdout]     |                           ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]    --> src/collections/markov_chain.rs:125:27
[INFO] [stdout]     |
[INFO] [stdout] 125 |         let mut r = rand::thread_rng().gen_range(0.0..sum);
[INFO] [stdout]     |                           ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]    --> src/collections/markov_chain.rs:125:40
[INFO] [stdout]     |
[INFO] [stdout] 125 |         let mut r = rand::thread_rng().gen_range(0.0..sum);
[INFO] [stdout]     |                                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]    --> src/collections/markov_chain.rs:125:40
[INFO] [stdout]     |
[INFO] [stdout] 125 |         let mut r = rand::thread_rng().gen_range(0.0..sum);
[INFO] [stdout]     |                                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `EmptyMatrix` and `NonSquareMatrix` are never constructed
[INFO] [stdout]  --> src/collections/square_matrix.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum CreationError {
[INFO] [stdout]   |          ------------- variants in this enum
[INFO] [stdout] 6 |     EmptyMatrix,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 7 |     NonSquareMatrix,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CreationError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/collections/square_matrix.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl SquareMatrix {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 31 |     pub fn new(data: Vec<Vec<f64>>) -> Result<Self, CreationError> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `teleportation_model` is never used
[INFO] [stdout]  --> src/instructions/markov_chain.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn teleportation_model(mtx: &SquareMatrix, alpha: f64) -> Result<SquareMatrix, CreationError> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calc_eigenvector` is never used
[INFO] [stdout]   --> src/instructions/markov_chain.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn calc_eigenvector(mtx: &SquareMatrix) -> Result<Vec<f64>, Box<dyn std::error::Error>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OperationError` is never used
[INFO] [stdout]  --> src/instructions/matrix_operations.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum OperationError {
[INFO] [stdout]   |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `substract_identity` is never used
[INFO] [stdout]   --> src/instructions/matrix_operations.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn substract_identity(mtx: &SquareMatrix) -> Result<SquareMatrix, CreationError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cofactor` is never used
[INFO] [stdout]   --> src/instructions/matrix_operations.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn cofactor(mtx: &SquareMatrix, cof: &mut SquareMatrix, p: usize, q: usize, n: usize) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `determinant` is never used
[INFO] [stdout]   --> src/instructions/matrix_operations.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn determinant(mtx: &SquareMatrix, n: usize) -> Result<f64, CreationError> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `adjoint` is never used
[INFO] [stdout]   --> src/instructions/matrix_operations.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn adjoint(mtx: &SquareMatrix) -> Result<SquareMatrix, CreationError> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `inverse` is never used
[INFO] [stdout]   --> src/instructions/matrix_operations.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub fn inverse(mtx: &SquareMatrix) -> Result<SquareMatrix, Box<dyn Error>> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `EmptyMatrix` and `NonSquareMatrix` are never constructed
[INFO] [stdout]  --> src/collections/square_matrix.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum CreationError {
[INFO] [stdout]   |          ------------- variants in this enum
[INFO] [stdout] 6 |     EmptyMatrix,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 7 |     NonSquareMatrix,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CreationError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/collections/square_matrix.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl SquareMatrix {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 31 |     pub fn new(data: Vec<Vec<f64>>) -> Result<Self, CreationError> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `teleportation_model` is never used
[INFO] [stdout]  --> src/instructions/markov_chain.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn teleportation_model(mtx: &SquareMatrix, alpha: f64) -> Result<SquareMatrix, CreationError> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calc_eigenvector` is never used
[INFO] [stdout]   --> src/instructions/markov_chain.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn calc_eigenvector(mtx: &SquareMatrix) -> Result<Vec<f64>, Box<dyn std::error::Error>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OperationError` is never used
[INFO] [stdout]  --> src/instructions/matrix_operations.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum OperationError {
[INFO] [stdout]   |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `substract_identity` is never used
[INFO] [stdout]   --> src/instructions/matrix_operations.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn substract_identity(mtx: &SquareMatrix) -> Result<SquareMatrix, CreationError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cofactor` is never used
[INFO] [stdout]   --> src/instructions/matrix_operations.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn cofactor(mtx: &SquareMatrix, cof: &mut SquareMatrix, p: usize, q: usize, n: usize) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `determinant` is never used
[INFO] [stdout]   --> src/instructions/matrix_operations.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn determinant(mtx: &SquareMatrix, n: usize) -> Result<f64, CreationError> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `adjoint` is never used
[INFO] [stdout]   --> src/instructions/matrix_operations.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn adjoint(mtx: &SquareMatrix) -> Result<SquareMatrix, CreationError> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `inverse` is never used
[INFO] [stdout]   --> src/instructions/matrix_operations.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub fn inverse(mtx: &SquareMatrix) -> Result<SquareMatrix, Box<dyn Error>> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.44s
[INFO] running `Command { std: "docker" "inspect" "b662bd1cd9f4bb48d636304ba3560fb1478ac5c815f26b348a435c089d114489", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b662bd1cd9f4bb48d636304ba3560fb1478ac5c815f26b348a435c089d114489", kill_on_drop: false }`
[INFO] [stdout] b662bd1cd9f4bb48d636304ba3560fb1478ac5c815f26b348a435c089d114489