[INFO] cloning repository https://github.com/datawater/WaitOneSecondFib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/datawater/WaitOneSecondFib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdatawater%2FWaitOneSecondFib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdatawater%2FWaitOneSecondFib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 972837ce4a21002e858e4f611c882f820a1f9bf6
[INFO] checking datawater/WaitOneSecondFib against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdatawater%2FWaitOneSecondFib" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/datawater/WaitOneSecondFib on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/datawater/WaitOneSecondFib
[INFO] finished tweaking git repo https://github.com/datawater/WaitOneSecondFib
[INFO] tweaked toml for git repo https://github.com/datawater/WaitOneSecondFib written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/datawater/WaitOneSecondFib 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rug v1.25.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c8d9f0d00e3da7efdaac29882a7525a58b56663804d9a7d01e1c447b99b6e15
[INFO] running `Command { std: "docker" "start" "-a" "7c8d9f0d00e3da7efdaac29882a7525a58b56663804d9a7d01e1c447b99b6e15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c8d9f0d00e3da7efdaac29882a7525a58b56663804d9a7d01e1c447b99b6e15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c8d9f0d00e3da7efdaac29882a7525a58b56663804d9a7d01e1c447b99b6e15", kill_on_drop: false }`
[INFO] [stdout] 7c8d9f0d00e3da7efdaac29882a7525a58b56663804d9a7d01e1c447b99b6e15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b72494bcbd9b4098afd880af27eed7b29ec35e94c5391b8c18e91aa874a10758
[INFO] running `Command { std: "docker" "start" "-a" "b72494bcbd9b4098afd880af27eed7b29ec35e94c5391b8c18e91aa874a10758", kill_on_drop: false }`
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.6.4
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling rug v1.25.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]     Checking thread-tree v0.3.3
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking fib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `BASE_PRECISION` is never used
[INFO] [stdout]  --> src/binet.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const BASE_PRECISION: u32 = 65536;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_nth_fib_rug` is never used
[INFO] [stdout]  --> src/binet.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn get_nth_fib_rug(n: u64) -> Float {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_nth_fib_rug` is never used
[INFO] [stdout]  --> src/linear.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn get_nth_fib_rug(n: u32) -> Integer {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_nth_fib_rug` is never used
[INFO] [stdout]  --> src/matrix.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn get_nth_fib_rug(n: u64) -> Integer {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `matrix_power` is never used
[INFO] [stdout]   --> src/matrix.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn matrix_power(matrix: &Array2<Integer>, power: u64) -> Array2<Integer> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `matrix_multiply` is never used
[INFO] [stdout]   --> src/matrix.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn matrix_multiply(a: &Array2<Integer>, b: &Array2<Integer>) -> Array2<Integer> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BASE_PRECISION` is never used
[INFO] [stdout]  --> src/binet.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const BASE_PRECISION: u32 = 65536;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_nth_fib_rug` is never used
[INFO] [stdout]  --> src/binet.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn get_nth_fib_rug(n: u64) -> Float {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_nth_fib_rug` is never used
[INFO] [stdout]  --> src/linear.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn get_nth_fib_rug(n: u32) -> Integer {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_nth_fib_rug` is never used
[INFO] [stdout]  --> src/matrix.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn get_nth_fib_rug(n: u64) -> Integer {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `matrix_power` is never used
[INFO] [stdout]   --> src/matrix.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn matrix_power(matrix: &Array2<Integer>, power: u64) -> Array2<Integer> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `matrix_multiply` is never used
[INFO] [stdout]   --> src/matrix.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn matrix_multiply(a: &Array2<Integer>, b: &Array2<Integer>) -> Array2<Integer> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4m 18s
[INFO] running `Command { std: "docker" "inspect" "b72494bcbd9b4098afd880af27eed7b29ec35e94c5391b8c18e91aa874a10758", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b72494bcbd9b4098afd880af27eed7b29ec35e94c5391b8c18e91aa874a10758", kill_on_drop: false }`
[INFO] [stdout] b72494bcbd9b4098afd880af27eed7b29ec35e94c5391b8c18e91aa874a10758
[INFO] checking datawater/WaitOneSecondFib against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdatawater%2FWaitOneSecondFib" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/datawater/WaitOneSecondFib on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/datawater/WaitOneSecondFib
[INFO] finished tweaking git repo https://github.com/datawater/WaitOneSecondFib
[INFO] tweaked toml for git repo https://github.com/datawater/WaitOneSecondFib written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/datawater/WaitOneSecondFib 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7fc0d21ff5bd5c658f4ef653ea6bbc74fc7e3d96f984de8245f208b385352673
[INFO] running `Command { std: "docker" "start" "-a" "7fc0d21ff5bd5c658f4ef653ea6bbc74fc7e3d96f984de8245f208b385352673", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7fc0d21ff5bd5c658f4ef653ea6bbc74fc7e3d96f984de8245f208b385352673", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fc0d21ff5bd5c658f4ef653ea6bbc74fc7e3d96f984de8245f208b385352673", kill_on_drop: false }`
[INFO] [stdout] 7fc0d21ff5bd5c658f4ef653ea6bbc74fc7e3d96f984de8245f208b385352673
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8e76304bccd8ff5cfac59db5e376a7df1d59f376e7728044af768e793dd0333
[INFO] running `Command { std: "docker" "start" "-a" "b8e76304bccd8ff5cfac59db5e376a7df1d59f376e7728044af768e793dd0333", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.6.4
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling rug v1.25.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking thread-tree v0.3.3
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking fib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `BASE_PRECISION` is never used
[INFO] [stdout]  --> src/binet.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const BASE_PRECISION: u32 = 65536;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_nth_fib_rug` is never used
[INFO] [stdout]  --> src/binet.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn get_nth_fib_rug(n: u64) -> Float {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_nth_fib_rug` is never used
[INFO] [stdout]  --> src/linear.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn get_nth_fib_rug(n: u32) -> Integer {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_nth_fib_rug` is never used
[INFO] [stdout]  --> src/matrix.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn get_nth_fib_rug(n: u64) -> Integer {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `matrix_power` is never used
[INFO] [stdout]   --> src/matrix.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn matrix_power(matrix: &Array2<Integer>, power: u64) -> Array2<Integer> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `matrix_multiply` is never used
[INFO] [stdout]   --> src/matrix.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn matrix_multiply(a: &Array2<Integer>, b: &Array2<Integer>) -> Array2<Integer> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BASE_PRECISION` is never used
[INFO] [stdout]  --> src/binet.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const BASE_PRECISION: u32 = 65536;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_nth_fib_rug` is never used
[INFO] [stdout]  --> src/binet.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn get_nth_fib_rug(n: u64) -> Float {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_nth_fib_rug` is never used
[INFO] [stdout]  --> src/linear.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn get_nth_fib_rug(n: u32) -> Integer {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_nth_fib_rug` is never used
[INFO] [stdout]  --> src/matrix.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn get_nth_fib_rug(n: u64) -> Integer {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `matrix_power` is never used
[INFO] [stdout]   --> src/matrix.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn matrix_power(matrix: &Array2<Integer>, power: u64) -> Array2<Integer> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `matrix_multiply` is never used
[INFO] [stdout]   --> src/matrix.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn matrix_multiply(a: &Array2<Integer>, b: &Array2<Integer>) -> Array2<Integer> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3m 53s
[INFO] running `Command { std: "docker" "inspect" "b8e76304bccd8ff5cfac59db5e376a7df1d59f376e7728044af768e793dd0333", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8e76304bccd8ff5cfac59db5e376a7df1d59f376e7728044af768e793dd0333", kill_on_drop: false }`
[INFO] [stdout] b8e76304bccd8ff5cfac59db5e376a7df1d59f376e7728044af768e793dd0333