[INFO] updating cached repository nsmryan/MachineLearningArtProject
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nsmryan/MachineLearningArtProject
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nsmryan/MachineLearningArtProject" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/nsmryan/MachineLearningArtProject"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/nsmryan/MachineLearningArtProject'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nsmryan/MachineLearningArtProject" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/nsmryan/MachineLearningArtProject"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/nsmryan/MachineLearningArtProject'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5f9a523f363582176aa36c9429a7fe1ef8ca439e
[INFO] sha for GitHub repo nsmryan/MachineLearningArtProject: 5f9a523f363582176aa36c9429a7fe1ef8ca439e
[INFO] validating manifest of nsmryan/MachineLearningArtProject on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nsmryan/MachineLearningArtProject on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nsmryan/MachineLearningArtProject
[INFO] finished frobbing nsmryan/MachineLearningArtProject
[INFO] frobbed toml for nsmryan/MachineLearningArtProject written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/nsmryan/MachineLearningArtProject/Cargo.toml
[INFO] started frobbing nsmryan/MachineLearningArtProject
[INFO] finished frobbing nsmryan/MachineLearningArtProject
[INFO] frobbed toml for nsmryan/MachineLearningArtProject written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/nsmryan/MachineLearningArtProject/Cargo.toml
[INFO] crate nsmryan/MachineLearningArtProject already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking nsmryan/MachineLearningArtProject against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-6/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/nsmryan/MachineLearningArtProject:/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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8c94eb4c934cb03b0aff3f4595112c6a78e4cbb515411fbd846c1501c9b2bd8d
[INFO] running `"docker" "start" "-a" "8c94eb4c934cb03b0aff3f4595112c6a78e4cbb515411fbd846c1501c9b2bd8d"`
[INFO] [stderr]     Checking fann-sys v0.1.7
[INFO] [stderr]     Checking imageproc v0.18.0
[INFO] [stderr]     Checking fann v0.1.7
[INFO] [stderr]     Checking nn v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]   --> src/main.rs:75:34
[INFO] [stderr]    |
[INFO] [stderr] 75 |                 .filter(|(index, val)| index % 3 == 0)
[INFO] [stderr]    |                                  ^^^ help: consider prefixing with an underscore: `_val`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]   --> src/main.rs:76:24
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 .map(|(index, val)| (*val as f32) / 256.0)
[INFO] [stderr]    |                        ^^^^^ help: consider prefixing with an underscore: `_index`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fann.save("network.txt");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]   --> src/main.rs:75:34
[INFO] [stderr]    |
[INFO] [stderr] 75 |                 .filter(|(index, val)| index % 3 == 0)
[INFO] [stderr]    |                                  ^^^ help: consider prefixing with an underscore: `_val`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]   --> src/main.rs:76:24
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 .map(|(index, val)| (*val as f32) / 256.0)
[INFO] [stderr]    |                        ^^^^^ help: consider prefixing with an underscore: `_index`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fann.save("network.txt");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.63s
[INFO] running `"docker" "inspect" "8c94eb4c934cb03b0aff3f4595112c6a78e4cbb515411fbd846c1501c9b2bd8d"`
[INFO] running `"docker" "rm" "-f" "8c94eb4c934cb03b0aff3f4595112c6a78e4cbb515411fbd846c1501c9b2bd8d"`
[INFO] [stdout] 8c94eb4c934cb03b0aff3f4595112c6a78e4cbb515411fbd846c1501c9b2bd8d