Dec 11 05:16:41.502 INFO checking zackmdavis/Machine_Numeral_Identification_and_Sorting_Task against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 05:16:41.502 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 05:16:41.756 INFO [stdout] b6f572a048039c9fc530a4f82ef154481a4bd0ee85aaeb2dfd7e99375a6febb5
Dec 11 05:16:41.758 INFO running `"docker" "start" "-a" "b6f572a048039c9fc530a4f82ef154481a4bd0ee85aaeb2dfd7e99375a6febb5"`
Dec 11 05:16:42.177 INFO [stderr] usermod: no changes
Dec 11 05:16:42.224 INFO [stderr]     Checking num-traits v0.1.41
Dec 11 05:16:42.224 INFO [stderr]    Compiling matrixmultiply v0.1.14
Dec 11 05:16:42.224 INFO [stderr]     Checking rawpointer v0.1.0
Dec 11 05:16:42.224 INFO [stderr]     Checking rand v0.3.18
Dec 11 05:16:42.224 INFO [stderr]     Checking mnist v0.4.0
Dec 11 05:16:43.808 INFO [stderr]     Checking num-integer v0.1.35
Dec 11 05:16:44.128 INFO [stderr]     Checking num-iter v0.1.34
Dec 11 05:16:44.266 INFO [stderr]     Checking num v0.1.41
Dec 11 05:16:44.383 INFO [stderr]     Checking rulinalg v0.3.7
Dec 11 05:16:46.715 INFO [stderr]     Checking rusty-machine v0.5.4
Dec 11 05:16:48.132 INFO [stderr]     Checking machine_numeral_identification_and_sorting_task v0.0.1 (/source)
Dec 11 05:16:48.416 INFO [stderr] warning: variant is never constructed: `Test`
Dec 11 05:16:48.416 INFO [stderr]   --> src/main.rs:19:5
Dec 11 05:16:48.416 INFO [stderr]    |
Dec 11 05:16:48.416 INFO [stderr] 19 |     Test
Dec 11 05:16:48.416 INFO [stderr]    |     ^^^^
Dec 11 05:16:48.416 INFO [stderr]    |
Dec 11 05:16:48.416 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 05:16:48.416 INFO [stderr] 
Dec 11 05:16:48.416 INFO [stderr] warning: method is never used: `digit`
Dec 11 05:16:48.416 INFO [stderr]   --> src/main.rs:31:5
Dec 11 05:16:48.416 INFO [stderr]    |
Dec 11 05:16:48.416 INFO [stderr] 31 |     fn digit(&self, set: Set, index: usize) -> Digit {
Dec 11 05:16:48.416 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:16:48.416 INFO [stderr] 
Dec 11 05:16:48.580 INFO [stderr] warning: variant is never constructed: `Test`
Dec 11 05:16:48.581 INFO [stderr]   --> src/main.rs:19:5
Dec 11 05:16:48.581 INFO [stderr]    |
Dec 11 05:16:48.581 INFO [stderr] 19 |     Test
Dec 11 05:16:48.581 INFO [stderr]    |     ^^^^
Dec 11 05:16:48.581 INFO [stderr]    |
Dec 11 05:16:48.581 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 05:16:48.581 INFO [stderr] 
Dec 11 05:16:48.581 INFO [stderr] warning: method is never used: `digit`
Dec 11 05:16:48.581 INFO [stderr]   --> src/main.rs:31:5
Dec 11 05:16:48.581 INFO [stderr]    |
Dec 11 05:16:48.581 INFO [stderr] 31 |     fn digit(&self, set: Set, index: usize) -> Digit {
Dec 11 05:16:48.581 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:16:48.581 INFO [stderr] 
Dec 11 05:16:48.632 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.44s
Dec 11 05:16:48.636 INFO [stderr] su: No module specific data is present
Dec 11 05:16:49.316 INFO running `"docker" "inspect" "b6f572a048039c9fc530a4f82ef154481a4bd0ee85aaeb2dfd7e99375a6febb5"`
Dec 11 05:16:49.516 INFO running `"docker" "rm" "-f" "b6f572a048039c9fc530a4f82ef154481a4bd0ee85aaeb2dfd7e99375a6febb5"`
Dec 11 05:16:49.881 INFO [stdout] b6f572a048039c9fc530a4f82ef154481a4bd0ee85aaeb2dfd7e99375a6febb5