Nov 30 06:04:39.327 INFO checking bobisme/rustrnn against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 06:04:39.327 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-2/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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"`
Nov 30 06:04:40.013 INFO [stdout] 8ce0f8d153283a643fe492e9a3731b4e87347ac55dfab6cccf4d3e24acdb279e
Nov 30 06:04:40.016 INFO running `"docker" "start" "-a" "8ce0f8d153283a643fe492e9a3731b4e87347ac55dfab6cccf4d3e24acdb279e"`
Nov 30 06:04:41.340 INFO [stderr] usermod: no changes
Nov 30 06:04:41.412 INFO [stderr]     Checking rustrnn v0.1.0 (/source)
Nov 30 06:04:42.855 INFO [stderr] warning: unused arithmetic operation that must be used
Nov 30 06:04:42.855 INFO [stderr]    --> src/matrix.rs:440:13
Nov 30 06:04:42.855 INFO [stderr]     |
Nov 30 06:04:42.855 INFO [stderr] 440 |             m1 + &m2;
Nov 30 06:04:42.855 INFO [stderr]     |             ^^^^^^^^
Nov 30 06:04:42.855 INFO [stderr]     |
Nov 30 06:04:42.855 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 30 06:04:42.855 INFO [stderr] 
Nov 30 06:04:42.855 INFO [stderr] warning: unused arithmetic operation that must be used
Nov 30 06:04:42.855 INFO [stderr]    --> src/matrix.rs:488:13
Nov 30 06:04:42.855 INFO [stderr]     |
Nov 30 06:04:42.855 INFO [stderr] 488 |             m1 - &m2;
Nov 30 06:04:42.855 INFO [stderr]     |             ^^^^^^^^
Nov 30 06:04:42.855 INFO [stderr] 
Nov 30 06:04:42.876 INFO [stderr] warning: struct is never constructed: `Layer`
Nov 30 06:04:42.876 INFO [stderr]  --> src/layer.rs:3:1
Nov 30 06:04:42.876 INFO [stderr]   |
Nov 30 06:04:42.876 INFO [stderr] 3 | pub struct Layer {
Nov 30 06:04:42.876 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Nov 30 06:04:42.876 INFO [stderr]   |
Nov 30 06:04:42.876 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 30 06:04:42.876 INFO [stderr] 
Nov 30 06:04:42.876 INFO [stderr] warning: method is never used: `new`
Nov 30 06:04:42.876 INFO [stderr]   --> src/layer.rs:10:5
Nov 30 06:04:42.876 INFO [stderr]    |
Nov 30 06:04:42.876 INFO [stderr] 10 |     pub fn new(input_size: usize, size: usize) -> Layer {
Nov 30 06:04:42.876 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 06:04:42.876 INFO [stderr] 
Nov 30 06:04:42.876 INFO [stderr] warning: method is never used: `size`
Nov 30 06:04:42.876 INFO [stderr]   --> src/layer.rs:18:5
Nov 30 06:04:42.876 INFO [stderr]    |
Nov 30 06:04:42.876 INFO [stderr] 18 |     pub fn size(&self) -> usize {
Nov 30 06:04:42.876 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 06:04:42.876 INFO [stderr] 
Nov 30 06:04:42.876 INFO [stderr] warning: method is never used: `input_size`
Nov 30 06:04:42.876 INFO [stderr]   --> src/layer.rs:22:5
Nov 30 06:04:42.876 INFO [stderr]    |
Nov 30 06:04:42.876 INFO [stderr] 22 |     pub fn input_size(&self) -> usize {
Nov 30 06:04:42.876 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 06:04:42.876 INFO [stderr] 
Nov 30 06:04:42.903 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.52s
Nov 30 06:04:42.906 INFO [stderr] su: No module specific data is present
Nov 30 06:04:43.738 INFO running `"docker" "inspect" "8ce0f8d153283a643fe492e9a3731b4e87347ac55dfab6cccf4d3e24acdb279e"`
Nov 30 06:04:44.096 INFO running `"docker" "rm" "-f" "8ce0f8d153283a643fe492e9a3731b4e87347ac55dfab6cccf4d3e24acdb279e"`
Nov 30 06:04:44.372 INFO [stdout] 8ce0f8d153283a643fe492e9a3731b4e87347ac55dfab6cccf4d3e24acdb279e