Oct 13 00:19:40.109 INFO checking bobisme/rustrnn against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 00:19:40.110 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-7/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 13 00:19:40.645 INFO blam! 395d6dd1afc0b830cbfd4ef8daab4e25c54df5d912340c5f252a460550d78ec3
Oct 13 00:19:40.647 INFO running `"docker" "start" "-a" "395d6dd1afc0b830cbfd4ef8daab4e25c54df5d912340c5f252a460550d78ec3"`
Oct 13 00:19:42.152 INFO kablam! usermod: no changes
Oct 13 00:19:42.248 INFO kablam!     Checking rustrnn v0.1.0 (/source)
Oct 13 00:19:43.252 INFO kablam! warning: struct is never constructed: `Layer`
Oct 13 00:19:43.252 INFO kablam!  --> src/layer.rs:3:1
Oct 13 00:19:43.252 INFO kablam!   |
Oct 13 00:19:43.252 INFO kablam! 3 | pub struct Layer {
Oct 13 00:19:43.252 INFO kablam!   | ^^^^^^^^^^^^^^^^
Oct 13 00:19:43.252 INFO kablam!   |
Oct 13 00:19:43.252 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 13 00:19:43.252 INFO kablam! 
Oct 13 00:19:43.252 INFO kablam! warning: method is never used: `new`
Oct 13 00:19:43.252 INFO kablam!   --> src/layer.rs:10:5
Oct 13 00:19:43.252 INFO kablam!    |
Oct 13 00:19:43.252 INFO kablam! 10 |     pub fn new(input_size: usize, size: usize) -> Layer {
Oct 13 00:19:43.252 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 00:19:43.252 INFO kablam! 
Oct 13 00:19:43.252 INFO kablam! warning: method is never used: `size`
Oct 13 00:19:43.252 INFO kablam!   --> src/layer.rs:18:5
Oct 13 00:19:43.252 INFO kablam!    |
Oct 13 00:19:43.253 INFO kablam! 18 |     pub fn size(&self) -> usize {
Oct 13 00:19:43.253 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 00:19:43.253 INFO kablam! 
Oct 13 00:19:43.253 INFO kablam! warning: method is never used: `input_size`
Oct 13 00:19:43.253 INFO kablam!   --> src/layer.rs:22:5
Oct 13 00:19:43.253 INFO kablam!    |
Oct 13 00:19:43.253 INFO kablam! 22 |     pub fn input_size(&self) -> usize {
Oct 13 00:19:43.253 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 00:19:43.253 INFO kablam! 
Oct 13 00:19:43.664 INFO kablam! warning: unused arithmetic operation which must be used
Oct 13 00:19:43.664 INFO kablam!    --> src/matrix.rs:440:13
Oct 13 00:19:43.664 INFO kablam!     |
Oct 13 00:19:43.664 INFO kablam! 440 |             m1 + &m2;
Oct 13 00:19:43.664 INFO kablam!     |             ^^^^^^^^
Oct 13 00:19:43.664 INFO kablam!     |
Oct 13 00:19:43.664 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 13 00:19:43.664 INFO kablam! 
Oct 13 00:19:43.672 INFO kablam! warning: unused arithmetic operation which must be used
Oct 13 00:19:43.672 INFO kablam!    --> src/matrix.rs:488:13
Oct 13 00:19:43.672 INFO kablam!     |
Oct 13 00:19:43.672 INFO kablam! 488 |             m1 - &m2;
Oct 13 00:19:43.672 INFO kablam!     |             ^^^^^^^^
Oct 13 00:19:43.672 INFO kablam! 
Oct 13 00:19:43.708 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.50s
Oct 13 00:19:43.717 INFO kablam! su: No module specific data is present
Oct 13 00:19:44.472 INFO running `"docker" "rm" "-f" "395d6dd1afc0b830cbfd4ef8daab4e25c54df5d912340c5f252a460550d78ec3"`
Oct 13 00:19:44.792 INFO blam! 395d6dd1afc0b830cbfd4ef8daab4e25c54df5d912340c5f252a460550d78ec3