Dec 11 13:04:18.994 INFO checking mvlabat/rust_mnist_gradient_descent against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 13:04:18.994 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-5/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 13:04:19.616 INFO [stdout] 999c4e383e15aaf25ed209636be89fd69d4ddc1d29f25851c7775c8631fbfce7
Dec 11 13:04:19.620 INFO running `"docker" "start" "-a" "999c4e383e15aaf25ed209636be89fd69d4ddc1d29f25851c7775c8631fbfce7"`
Dec 11 13:04:21.152 INFO [stderr] usermod: no changes
Dec 11 13:04:21.296 INFO [stderr]     Checking num-complex v0.1.41
Dec 11 13:04:22.438 INFO [stderr]     Checking alga v0.5.2
Dec 11 13:04:26.125 INFO [stderr]     Checking nalgebra v0.13.1
Dec 11 13:04:52.731 INFO [stderr]     Checking rust_mnist_gradient_descent v0.1.0 (/source)
Dec 11 13:04:53.608 INFO [stderr] warning: function is never used: `hypothesis`
Dec 11 13:04:53.608 INFO [stderr]   --> src/main.rs:27:1
Dec 11 13:04:53.608 INFO [stderr]    |
Dec 11 13:04:53.608 INFO [stderr] 27 | fn hypothesis(weigts: &WeightVector, image: &Image) -> f32 {
Dec 11 13:04:53.608 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:04:53.608 INFO [stderr]    |
Dec 11 13:04:53.608 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 13:04:53.608 INFO [stderr] 
Dec 11 13:04:53.608 INFO [stderr] warning: function is never used: `print_i`
Dec 11 13:04:53.608 INFO [stderr]   --> src/main.rs:35:1
Dec 11 13:04:53.608 INFO [stderr]    |
Dec 11 13:04:53.608 INFO [stderr] 35 | fn print_i(image: &WeightVector) {
Dec 11 13:04:53.608 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:04:53.608 INFO [stderr] 
Dec 11 13:04:53.626 INFO [stderr] warning: function is never used: `hypothesis`
Dec 11 13:04:53.626 INFO [stderr]   --> src/main.rs:27:1
Dec 11 13:04:53.626 INFO [stderr]    |
Dec 11 13:04:53.626 INFO [stderr] 27 | fn hypothesis(weigts: &WeightVector, image: &Image) -> f32 {
Dec 11 13:04:53.626 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:04:53.626 INFO [stderr]    |
Dec 11 13:04:53.626 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 13:04:53.626 INFO [stderr] 
Dec 11 13:04:53.626 INFO [stderr] warning: function is never used: `print_i`
Dec 11 13:04:53.626 INFO [stderr]   --> src/main.rs:35:1
Dec 11 13:04:53.627 INFO [stderr]    |
Dec 11 13:04:53.627 INFO [stderr] 35 | fn print_i(image: &WeightVector) {
Dec 11 13:04:53.627 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:04:53.627 INFO [stderr] 
Dec 11 13:04:53.644 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.47s
Dec 11 13:04:53.649 INFO [stderr] su: No module specific data is present
Dec 11 13:04:54.199 INFO running `"docker" "inspect" "999c4e383e15aaf25ed209636be89fd69d4ddc1d29f25851c7775c8631fbfce7"`
Dec 11 13:04:54.396 INFO running `"docker" "rm" "-f" "999c4e383e15aaf25ed209636be89fd69d4ddc1d29f25851c7775c8631fbfce7"`
Dec 11 13:04:54.644 INFO [stdout] 999c4e383e15aaf25ed209636be89fd69d4ddc1d29f25851c7775c8631fbfce7