[INFO] cloning repository https://github.com/Maurdekye/mnist-nn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Maurdekye/mnist-nn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaurdekye%2Fmnist-nn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaurdekye%2Fmnist-nn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c1c979ec7116ac971de7a432222b4f5208fea3f9
[INFO] checking Maurdekye/mnist-nn against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaurdekye%2Fmnist-nn" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Maurdekye/mnist-nn
[INFO] finished tweaking git repo https://github.com/Maurdekye/mnist-nn
[INFO] tweaked toml for git repo https://github.com/Maurdekye/mnist-nn written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Maurdekye/mnist-nn on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Maurdekye/mnist-nn 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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b54ac4d71fb234aaf6a32e17cfbb50501c5886136299177030c82a497ab4f72
[INFO] running `Command { std: "docker" "start" "-a" "0b54ac4d71fb234aaf6a32e17cfbb50501c5886136299177030c82a497ab4f72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b54ac4d71fb234aaf6a32e17cfbb50501c5886136299177030c82a497ab4f72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b54ac4d71fb234aaf6a32e17cfbb50501c5886136299177030c82a497ab4f72", kill_on_drop: false }`
[INFO] [stdout] 0b54ac4d71fb234aaf6a32e17cfbb50501c5886136299177030c82a497ab4f72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6706228f9415093cad3e9e306c53fdcf32e867d5f3b7782921f5a2f431ae9be
[INFO] running `Command { std: "docker" "start" "-a" "a6706228f9415093cad3e9e306c53fdcf32e867d5f3b7782921f5a2f431ae9be", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking anstyle v1.0.6
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]     Checking anstyle-query v1.0.2
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking strsim v0.11.0
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking clap_lex v0.7.0
[INFO] [stderr]     Checking progress-observer v3.2.0
[INFO] [stderr]    Compiling syn v2.0.55
[INFO] [stderr]     Checking anstyle-parse v0.2.3
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking itertools v0.12.1
[INFO] [stderr]     Checking anstream v0.6.13
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking clap_builder v4.5.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling clap_derive v4.5.3
[INFO] [stderr]     Checking clap v4.5.3
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]     Checking mnist-nn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `array_windows` has been stable since 1.94.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(array_windows)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `array_windows` has been stable since 1.94.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(array_windows)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `gradient` is never read
[INFO] [stdout]    --> src/nn.rs:337:9
[INFO] [stdout]     |
[INFO] [stdout] 334 | pub struct TrainingProgress<'a> {
[INFO] [stdout]     |            ---------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 337 |     pub gradient: &'a Gradient,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ReLu` is never constructed
[INFO] [stdout]    --> src/nn.rs:389:12
[INFO] [stdout]     |
[INFO] [stdout] 389 | pub struct ReLu;
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LeakyReLu` is never constructed
[INFO] [stdout]    --> src/nn.rs:404:12
[INFO] [stdout]     |
[INFO] [stdout] 404 | pub struct LeakyReLu;
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/nn.rs:462:26
[INFO] [stdout]     |
[INFO] [stdout] 462 |     fn transposed_chunks(&self, num_chunks: usize) -> TransposedChunks<Self::Item>;
[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] 462 |     fn transposed_chunks(&self, num_chunks: usize) -> TransposedChunks<'_, Self::Item>;
[INFO] [stdout]     |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/nn.rs:468:26
[INFO] [stdout]     |
[INFO] [stdout] 468 |     fn transposed_chunks(&self, num_chunks: usize) -> TransposedChunks<Self::Item> {
[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] 468 |     fn transposed_chunks(&self, num_chunks: usize) -> TransposedChunks<'_, Self::Item> {
[INFO] [stdout]     |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/nn.rs:481:26
[INFO] [stdout]     |
[INFO] [stdout] 481 |     fn transposed_chunks(&self, num_chunks: usize) -> TransposedChunks<Self::Item> {
[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] 481 |     fn transposed_chunks(&self, num_chunks: usize) -> TransposedChunks<'_, Self::Item> {
[INFO] [stdout]     |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `iterator_try_collect` is declared but not used
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(iterator_try_collect)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `gradient` is never read
[INFO] [stdout]    --> src/nn.rs:337:9
[INFO] [stdout]     |
[INFO] [stdout] 334 | pub struct TrainingProgress<'a> {
[INFO] [stdout]     |            ---------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 337 |     pub gradient: &'a Gradient,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ReLu` is never constructed
[INFO] [stdout]    --> src/nn.rs:389:12
[INFO] [stdout]     |
[INFO] [stdout] 389 | pub struct ReLu;
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LeakyReLu` is never constructed
[INFO] [stdout]    --> src/nn.rs:404:12
[INFO] [stdout]     |
[INFO] [stdout] 404 | pub struct LeakyReLu;
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/nn.rs:462:26
[INFO] [stdout]     |
[INFO] [stdout] 462 |     fn transposed_chunks(&self, num_chunks: usize) -> TransposedChunks<Self::Item>;
[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] 462 |     fn transposed_chunks(&self, num_chunks: usize) -> TransposedChunks<'_, Self::Item>;
[INFO] [stdout]     |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/nn.rs:468:26
[INFO] [stdout]     |
[INFO] [stdout] 468 |     fn transposed_chunks(&self, num_chunks: usize) -> TransposedChunks<Self::Item> {
[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] 468 |     fn transposed_chunks(&self, num_chunks: usize) -> TransposedChunks<'_, Self::Item> {
[INFO] [stdout]     |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/nn.rs:481:26
[INFO] [stdout]     |
[INFO] [stdout] 481 |     fn transposed_chunks(&self, num_chunks: usize) -> TransposedChunks<Self::Item> {
[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] 481 |     fn transposed_chunks(&self, num_chunks: usize) -> TransposedChunks<'_, Self::Item> {
[INFO] [stdout]     |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `iterator_try_collect` is declared but not used
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(iterator_try_collect)]
[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 13.88s
[INFO] running `Command { std: "docker" "inspect" "a6706228f9415093cad3e9e306c53fdcf32e867d5f3b7782921f5a2f431ae9be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6706228f9415093cad3e9e306c53fdcf32e867d5f3b7782921f5a2f431ae9be", kill_on_drop: false }`
[INFO] [stdout] a6706228f9415093cad3e9e306c53fdcf32e867d5f3b7782921f5a2f431ae9be
