[INFO] cloning repository https://github.com/GeorgeAzma/neural-network
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GeorgeAzma/neural-network" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeorgeAzma%2Fneural-network", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeorgeAzma%2Fneural-network'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 07a87cc3fda1d8adf74a71bb9e1c0e8cbd5165f1
[INFO] checking GeorgeAzma/neural-network/07a87cc3fda1d8adf74a71bb9e1c0e8cbd5165f1 against 67854e511de21d881bb16426996cd4259d44aa2e for pr-161154
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeorgeAzma%2Fneural-network" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/GeorgeAzma/neural-network
[INFO] finished tweaking git repo https://github.com/GeorgeAzma/neural-network
[INFO] tweaked toml for git repo https://github.com/GeorgeAzma/neural-network written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/GeorgeAzma/neural-network on toolchain 67854e511de21d881bb16426996cd4259d44aa2e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+67854e511de21d881bb16426996cd4259d44aa2e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/GeorgeAzma/neural-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" "+67854e511de21d881bb16426996cd4259d44aa2e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] d06efe2dd5cdffadfe7232e2204d98cd293a5a46894bc416cc76566ee76a3383
[INFO] running `Command { std: "docker" "start" "d06efe2dd5cdffadfe7232e2204d98cd293a5a46894bc416cc76566ee76a3383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d06efe2dd5cdffadfe7232e2204d98cd293a5a46894bc416cc76566ee76a3383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d06efe2dd5cdffadfe7232e2204d98cd293a5a46894bc416cc76566ee76a3383" "/opt/rustwide/cargo-home/bin/cargo" "+67854e511de21d881bb16426996cd4259d44aa2e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d06efe2dd5cdffadfe7232e2204d98cd293a5a46894bc416cc76566ee76a3383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d06efe2dd5cdffadfe7232e2204d98cd293a5a46894bc416cc76566ee76a3383" "/opt/rustwide/cargo-home/bin/cargo" "+67854e511de21d881bb16426996cd4259d44aa2e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking neural-network v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tensor.rs:222:17
[INFO] [stdout]     |
[INFO] [stdout] 222 |     pub fn iter(&self) -> std::slice::Iter<f32> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 222 |     pub fn iter(&self) -> std::slice::Iter<'_, f32> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tensor.rs:226:21
[INFO] [stdout]     |
[INFO] [stdout] 226 |     pub fn iter_mut(&mut self) -> std::slice::IterMut<f32> {
[INFO] [stdout]     |                     ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 226 |     pub fn iter_mut(&mut self) -> std::slice::IterMut<'_, f32> {
[INFO] [stdout]     |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/data.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn iter(&self) -> DatasetIter {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn iter(&self) -> DatasetIter<'_> {
[INFO] [stdout]    |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/data.rs:110:17
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn iter(&self) -> BatchIter {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn iter(&self) -> BatchIter<'_> {
[INFO] [stdout]     |                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `portable_simd` is declared but not used
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(portable_simd)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tensor.rs:222:17
[INFO] [stdout]     |
[INFO] [stdout] 222 |     pub fn iter(&self) -> std::slice::Iter<f32> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 222 |     pub fn iter(&self) -> std::slice::Iter<'_, f32> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tensor.rs:226:21
[INFO] [stdout]     |
[INFO] [stdout] 226 |     pub fn iter_mut(&mut self) -> std::slice::IterMut<f32> {
[INFO] [stdout]     |                     ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 226 |     pub fn iter_mut(&mut self) -> std::slice::IterMut<'_, f32> {
[INFO] [stdout]     |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/data.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn iter(&self) -> DatasetIter {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn iter(&self) -> DatasetIter<'_> {
[INFO] [stdout]    |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/data.rs:110:17
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn iter(&self) -> BatchIter {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn iter(&self) -> BatchIter<'_> {
[INFO] [stdout]     |                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `portable_simd` is declared but not used
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(portable_simd)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "d06efe2dd5cdffadfe7232e2204d98cd293a5a46894bc416cc76566ee76a3383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d06efe2dd5cdffadfe7232e2204d98cd293a5a46894bc416cc76566ee76a3383", kill_on_drop: false }`
[INFO] [stdout] d06efe2dd5cdffadfe7232e2204d98cd293a5a46894bc416cc76566ee76a3383