Dec 19 06:31:39.352 INFO checking tylerreisinger/neural-network-deep-learning against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 06:31:39.352 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 06:31:40.147 INFO [stdout] 9dba06e641d3c8c6e5a6c090455c043d9f34113d928afdff2468e97afcd804de
Dec 19 06:31:40.148 INFO running `"docker" "start" "-a" "9dba06e641d3c8c6e5a6c090455c043d9f34113d928afdff2468e97afcd804de"`
Dec 19 06:31:42.588 INFO [stderr]     Checking rand v0.3.15
Dec 19 06:31:43.888 INFO [stderr]     Checking neural_net v0.1.0 (/opt/crater/workdir)
Dec 19 06:31:44.248 INFO [stderr] warning: unused import: `super::*`
Dec 19 06:31:44.248 INFO [stderr]    --> src/mnist/idx.rs:402:9
Dec 19 06:31:44.248 INFO [stderr]     |
Dec 19 06:31:44.248 INFO [stderr] 402 |     use super::*;
Dec 19 06:31:44.248 INFO [stderr]     |         ^^^^^^^^
Dec 19 06:31:44.248 INFO [stderr]     |
Dec 19 06:31:44.248 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 19 06:31:44.248 INFO [stderr] 
Dec 19 06:31:44.592 INFO [stderr] warning: unused variable: `labels`
Dec 19 06:31:44.592 INFO [stderr]   --> src/main.rs:12:9
Dec 19 06:31:44.592 INFO [stderr]    |
Dec 19 06:31:44.592 INFO [stderr] 12 |     let labels = 
Dec 19 06:31:44.592 INFO [stderr]    |         ^^^^^^ help: consider using `_labels` instead
Dec 19 06:31:44.592 INFO [stderr]    |
Dec 19 06:31:44.592 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 06:31:44.592 INFO [stderr] 
Dec 19 06:31:44.600 INFO [stderr] warning: unused variable: `images`
Dec 19 06:31:44.600 INFO [stderr]   --> src/main.rs:14:9
Dec 19 06:31:44.600 INFO [stderr]    |
Dec 19 06:31:44.600 INFO [stderr] 14 |     let images = 
Dec 19 06:31:44.600 INFO [stderr]    |         ^^^^^^ help: consider using `_images` instead
Dec 19 06:31:44.600 INFO [stderr] 
Dec 19 06:31:44.600 INFO [stderr] warning: unused variable: `labels`
Dec 19 06:31:44.600 INFO [stderr]   --> src/main.rs:12:9
Dec 19 06:31:44.600 INFO [stderr]    |
Dec 19 06:31:44.600 INFO [stderr] 12 |     let labels = 
Dec 19 06:31:44.600 INFO [stderr]    |         ^^^^^^ help: consider using `_labels` instead
Dec 19 06:31:44.600 INFO [stderr]    |
Dec 19 06:31:44.600 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 06:31:44.600 INFO [stderr] 
Dec 19 06:31:44.600 INFO [stderr] warning: unused variable: `images`
Dec 19 06:31:44.600 INFO [stderr]   --> src/main.rs:14:9
Dec 19 06:31:44.600 INFO [stderr]    |
Dec 19 06:31:44.600 INFO [stderr] 14 |     let images = 
Dec 19 06:31:44.600 INFO [stderr]    |         ^^^^^^ help: consider using `_images` instead
Dec 19 06:31:44.600 INFO [stderr] 
Dec 19 06:31:44.760 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.23s
Dec 19 06:31:45.416 INFO running `"docker" "inspect" "9dba06e641d3c8c6e5a6c090455c043d9f34113d928afdff2468e97afcd804de"`
Dec 19 06:31:45.804 INFO running `"docker" "rm" "-f" "9dba06e641d3c8c6e5a6c090455c043d9f34113d928afdff2468e97afcd804de"`
Dec 19 06:31:46.128 INFO [stdout] 9dba06e641d3c8c6e5a6c090455c043d9f34113d928afdff2468e97afcd804de