[INFO] updating cached repository jaroslaw-weber/rust-ml-from-scratch
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jaroslaw-weber/rust-ml-from-scratch
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jaroslaw-weber/rust-ml-from-scratch" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/jaroslaw-weber/rust-ml-from-scratch"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/jaroslaw-weber/rust-ml-from-scratch'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jaroslaw-weber/rust-ml-from-scratch" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/jaroslaw-weber/rust-ml-from-scratch"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/jaroslaw-weber/rust-ml-from-scratch'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6eaecb746eae46b8964018a9846b1aa6f911d3b7
[INFO] sha for GitHub repo jaroslaw-weber/rust-ml-from-scratch: 6eaecb746eae46b8964018a9846b1aa6f911d3b7
[INFO] validating manifest of jaroslaw-weber/rust-ml-from-scratch on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jaroslaw-weber/rust-ml-from-scratch on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jaroslaw-weber/rust-ml-from-scratch
[INFO] finished frobbing jaroslaw-weber/rust-ml-from-scratch
[INFO] frobbed toml for jaroslaw-weber/rust-ml-from-scratch written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/jaroslaw-weber/rust-ml-from-scratch/Cargo.toml
[INFO] started frobbing jaroslaw-weber/rust-ml-from-scratch
[INFO] finished frobbing jaroslaw-weber/rust-ml-from-scratch
[INFO] frobbed toml for jaroslaw-weber/rust-ml-from-scratch written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/jaroslaw-weber/rust-ml-from-scratch/Cargo.toml
[INFO] crate jaroslaw-weber/rust-ml-from-scratch has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jaroslaw-weber/rust-ml-from-scratch against try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a for pr-58592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-6/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/jaroslaw-weber/rust-ml-from-scratch:/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" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a12ec5645a98ce7eba1439886bd8d11d6df4285bb36e376c5d20515a9809289f
[INFO] running `"docker" "start" "-a" "a12ec5645a98ce7eba1439886bd8d11d6df4285bb36e376c5d20515a9809289f"`
[INFO] [stderr]     Checking rust_machine_learning v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `sum`
[INFO] [stderr]    --> src/matrix.rs:131:2
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn sum(&self)->f32
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `max`
[INFO] [stderr]    --> src/matrix.rs:142:2
[INFO] [stderr]     |
[INFO] [stderr] 142 |     pub fn max(&self)->f32
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `divn`
[INFO] [stderr]    --> src/matrix.rs:184:2
[INFO] [stderr]     |
[INFO] [stderr] 184 |     pub fn divn(&self, number:f32)->Matrix
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `softmax`
[INFO] [stderr]   --> src/activations.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub fn softmax(x:&Matrix)->Matrix
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `softmax_stable`
[INFO] [stderr]   --> src/activations.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub fn softmax_stable(x:&Matrix)->Matrix
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `relu`
[INFO] [stderr]   --> src/activations.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn relu(x:&Matrix, derivative:bool)->Matrix
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `sum`
[INFO] [stderr]    --> src/matrix.rs:131:2
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn sum(&self)->f32
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `max`
[INFO] [stderr]    --> src/matrix.rs:142:2
[INFO] [stderr]     |
[INFO] [stderr] 142 |     pub fn max(&self)->f32
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `divn`
[INFO] [stderr]    --> src/matrix.rs:184:2
[INFO] [stderr]     |
[INFO] [stderr] 184 |     pub fn divn(&self, number:f32)->Matrix
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `softmax`
[INFO] [stderr]   --> src/activations.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub fn softmax(x:&Matrix)->Matrix
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `softmax_stable`
[INFO] [stderr]   --> src/activations.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub fn softmax_stable(x:&Matrix)->Matrix
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `relu`
[INFO] [stderr]   --> src/activations.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn relu(x:&Matrix, derivative:bool)->Matrix
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `"docker" "inspect" "a12ec5645a98ce7eba1439886bd8d11d6df4285bb36e376c5d20515a9809289f"`
[INFO] running `"docker" "rm" "-f" "a12ec5645a98ce7eba1439886bd8d11d6df4285bb36e376c5d20515a9809289f"`
[INFO] [stdout] a12ec5645a98ce7eba1439886bd8d11d6df4285bb36e376c5d20515a9809289f