Dec 17 12:58:21.275 INFO checking tylerreisinger/neural-network-deep-learning against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 12:58:21.275 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/tylerreisinger/neural-network-deep-learning:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 12:58:21.793 INFO [stdout] 2bf5185425110633ce8edbbb22b728d4752fdf2447f1ab0a6f33962c3cabca20
Dec 17 12:58:21.808 INFO running `"docker" "start" "-a" "2bf5185425110633ce8edbbb22b728d4752fdf2447f1ab0a6f33962c3cabca20"`
Dec 17 12:58:23.300 INFO [stderr]     Checking neural_net v0.1.0 (/opt/crater/workdir)
Dec 17 12:58:23.616 INFO [stderr] warning: unused import: `super::*`
Dec 17 12:58:23.616 INFO [stderr]    --> src/mnist/idx.rs:402:9
Dec 17 12:58:23.616 INFO [stderr]     |
Dec 17 12:58:23.616 INFO [stderr] 402 |     use super::*;
Dec 17 12:58:23.616 INFO [stderr]     |         ^^^^^^^^
Dec 17 12:58:23.616 INFO [stderr]     |
Dec 17 12:58:23.616 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 17 12:58:23.616 INFO [stderr] 
Dec 17 12:58:23.840 INFO [stderr] warning: unused variable: `labels`
Dec 17 12:58:23.840 INFO [stderr]   --> src/main.rs:12:9
Dec 17 12:58:23.840 INFO [stderr]    |
Dec 17 12:58:23.840 INFO [stderr] 12 |     let labels = 
Dec 17 12:58:23.841 INFO [stderr]    |         ^^^^^^ help: consider using `_labels` instead
Dec 17 12:58:23.841 INFO [stderr]    |
Dec 17 12:58:23.841 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 12:58:23.841 INFO [stderr] 
Dec 17 12:58:23.841 INFO [stderr] warning: unused variable: `images`
Dec 17 12:58:23.841 INFO [stderr]   --> src/main.rs:14:9
Dec 17 12:58:23.841 INFO [stderr]    |
Dec 17 12:58:23.841 INFO [stderr] 14 |     let images = 
Dec 17 12:58:23.841 INFO [stderr]    |         ^^^^^^ help: consider using `_images` instead
Dec 17 12:58:23.841 INFO [stderr] 
Dec 17 12:58:24.084 INFO [stderr] warning: unused variable: `labels`
Dec 17 12:58:24.084 INFO [stderr]   --> src/main.rs:12:9
Dec 17 12:58:24.084 INFO [stderr]    |
Dec 17 12:58:24.084 INFO [stderr] 12 |     let labels = 
Dec 17 12:58:24.084 INFO [stderr]    |         ^^^^^^ help: consider using `_labels` instead
Dec 17 12:58:24.084 INFO [stderr]    |
Dec 17 12:58:24.084 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 12:58:24.084 INFO [stderr] 
Dec 17 12:58:24.084 INFO [stderr] warning: unused variable: `images`
Dec 17 12:58:24.084 INFO [stderr]   --> src/main.rs:14:9
Dec 17 12:58:24.084 INFO [stderr]    |
Dec 17 12:58:24.084 INFO [stderr] 14 |     let images = 
Dec 17 12:58:24.084 INFO [stderr]    |         ^^^^^^ help: consider using `_images` instead
Dec 17 12:58:24.084 INFO [stderr] 
Dec 17 12:58:24.187 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
Dec 17 12:58:25.354 INFO running `"docker" "inspect" "2bf5185425110633ce8edbbb22b728d4752fdf2447f1ab0a6f33962c3cabca20"`
Dec 17 12:58:25.602 INFO running `"docker" "rm" "-f" "2bf5185425110633ce8edbbb22b728d4752fdf2447f1ab0a6f33962c3cabca20"`
Dec 17 12:58:26.008 INFO [stdout] 2bf5185425110633ce8edbbb22b728d4752fdf2447f1ab0a6f33962c3cabca20