[INFO] cloning repository https://github.com/Aure-git/neuron_network
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Aure-git/neuron_network" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAure-git%2Fneuron_network", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAure-git%2Fneuron_network'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 32db5b703622c31ed397716808f1c9a3616f3b5b
[INFO] checking Aure-git/neuron_network against master#3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0 for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAure-git%2Fneuron_network" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Aure-git/neuron_network
[INFO] finished tweaking git repo https://github.com/Aure-git/neuron_network
[INFO] tweaked toml for git repo https://github.com/Aure-git/neuron_network written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Aure-git/neuron_network on toolchain 3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Aure-git/neuron_network 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" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6f2d0e082f0e4adb5ee374660f4ade743871550161c6aa05c56eb745b9435c6
[INFO] running `Command { std: "docker" "start" "-a" "b6f2d0e082f0e4adb5ee374660f4ade743871550161c6aa05c56eb745b9435c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6f2d0e082f0e4adb5ee374660f4ade743871550161c6aa05c56eb745b9435c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6f2d0e082f0e4adb5ee374660f4ade743871550161c6aa05c56eb745b9435c6", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8bc4a014fc8610b7d420246c5754687f64fc5140fccd99ab8fd8cf4c97ca0400
[INFO] running `Command { std: "docker" "start" "-a" "8bc4a014fc8610b7d420246c5754687f64fc5140fccd99ab8fd8cf4c97ca0400", kill_on_drop: false }`
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[INFO] [stdout] warning: associated items `new`, `new_from_vec`, `new_default`, and `product` are never used
[INFO] [stdout]    --> src/matrix.rs:51:8
[INFO] [stdout]     |
[INFO] [stdout] 30  | impl<T> Matrix<T> {
[INFO] [stdout]     | ----------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 51  |     fn new(shape: (usize, usize)) -> Matrix<T> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 89  |     pub fn new_from_vec(shape: (usize, usize), mut vec: Vec<T>) -> Matrix<T> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 150 |     pub fn new_default(shape: (usize, usize)) -> Matrix<T>
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 259 |     pub fn product(&self, other: Self) -> Matrix<T>
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/matrix.rs:190:17
[INFO] [stdout]     |
[INFO] [stdout] 190 |     pub fn iter(&self) -> std::slice::Iter<T> {
[INFO] [stdout]     |                 ^^^^^     ------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 190 |     pub fn iter(&self) -> std::slice::Iter<'_, T> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/matrix.rs:197:21
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub fn iter_mut(&mut self) -> std::slice::IterMut<T> {
[INFO] [stdout]     |                     ^^^^^^^^^     ---------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub fn iter_mut(&mut self) -> std::slice::IterMut<'_, T> {
[INFO] [stdout]     |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/matrix.rs:202:17
[INFO] [stdout]     |
[INFO] [stdout] 202 |     fn iter_row(&self, row: usize) -> Option<std::iter::Take<std::iter::Skip<std::slice::Iter<T>>>> {
[INFO] [stdout]     |                 ^^^^^ this lifetime flows to the output                      ------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 202 |     fn iter_row(&self, row: usize) -> Option<std::iter::Take<std::iter::Skip<std::slice::Iter<'_, T>>>> {
[INFO] [stdout]     |                                                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/matrix.rs:211:17
[INFO] [stdout]     |
[INFO] [stdout] 211 |     fn iter_col(&self, col: usize) -> Option<std::iter::StepBy<std::iter::Skip<std::slice::Iter<T>>>> {
[INFO] [stdout]     |                 ^^^^^ this lifetime flows to the output                        ------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 211 |     fn iter_col(&self, col: usize) -> Option<std::iter::StepBy<std::iter::Skip<std::slice::Iter<'_, T>>>> {
[INFO] [stdout]     |                                                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `new_from_vec`, `new_identity`, `new_default`, `get`, and `product` are never used
[INFO] [stdout]    --> src/matrix.rs:51:8
[INFO] [stdout]     |
[INFO] [stdout] 30  | impl<T> Matrix<T> {
[INFO] [stdout]     | ----------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 51  |     fn new(shape: (usize, usize)) -> Matrix<T> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 89  |     pub fn new_from_vec(shape: (usize, usize), mut vec: Vec<T>) -> Matrix<T> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 136 |     pub fn new_identity(shape: (usize, usize)) -> Matrix<T> 
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 150 |     pub fn new_default(shape: (usize, usize)) -> Matrix<T>
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 171 |     pub fn get(&self, row: usize, col: usize) -> Option<&T> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 259 |     pub fn product(&self, other: Self) -> Matrix<T>
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/matrix.rs:190:17
[INFO] [stdout]     |
[INFO] [stdout] 190 |     pub fn iter(&self) -> std::slice::Iter<T> {
[INFO] [stdout]     |                 ^^^^^     ------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 190 |     pub fn iter(&self) -> std::slice::Iter<'_, T> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/matrix.rs:197:21
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub fn iter_mut(&mut self) -> std::slice::IterMut<T> {
[INFO] [stdout]     |                     ^^^^^^^^^     ---------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub fn iter_mut(&mut self) -> std::slice::IterMut<'_, T> {
[INFO] [stdout]     |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/matrix.rs:202:17
[INFO] [stdout]     |
[INFO] [stdout] 202 |     fn iter_row(&self, row: usize) -> Option<std::iter::Take<std::iter::Skip<std::slice::Iter<T>>>> {
[INFO] [stdout]     |                 ^^^^^ this lifetime flows to the output                      ------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 202 |     fn iter_row(&self, row: usize) -> Option<std::iter::Take<std::iter::Skip<std::slice::Iter<'_, T>>>> {
[INFO] [stdout]     |                                                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/matrix.rs:211:17
[INFO] [stdout]     |
[INFO] [stdout] 211 |     fn iter_col(&self, col: usize) -> Option<std::iter::StepBy<std::iter::Skip<std::slice::Iter<T>>>> {
[INFO] [stdout]     |                 ^^^^^ this lifetime flows to the output                        ------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 211 |     fn iter_col(&self, col: usize) -> Option<std::iter::StepBy<std::iter::Skip<std::slice::Iter<'_, T>>>> {
[INFO] [stdout]     |                                                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.44s
[INFO] running `Command { std: "docker" "inspect" "8bc4a014fc8610b7d420246c5754687f64fc5140fccd99ab8fd8cf4c97ca0400", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bc4a014fc8610b7d420246c5754687f64fc5140fccd99ab8fd8cf4c97ca0400", kill_on_drop: false }`
[INFO] [stdout] 8bc4a014fc8610b7d420246c5754687f64fc5140fccd99ab8fd8cf4c97ca0400
