[INFO] updating cached repository spearow/juice-examples
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/spearow/juice-examples
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/spearow/juice-examples" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/spearow/juice-examples"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/spearow/juice-examples'...
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[INFO] running `"git" "clone" "work/cache/sources/gh/spearow/juice-examples" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/spearow/juice-examples"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/spearow/juice-examples'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e8b0a395f74d20d3e14c6bd863d214193f2ce9e4
[INFO] sha for GitHub repo spearow/juice-examples: e8b0a395f74d20d3e14c6bd863d214193f2ce9e4
[INFO] validating manifest of spearow/juice-examples on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of spearow/juice-examples on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing spearow/juice-examples
[INFO] finished frobbing spearow/juice-examples
[INFO] frobbed toml for spearow/juice-examples written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/spearow/juice-examples/Cargo.toml
[INFO] started frobbing spearow/juice-examples
[INFO] finished frobbing spearow/juice-examples
[INFO] frobbed toml for spearow/juice-examples written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/spearow/juice-examples/Cargo.toml
[INFO] crate spearow/juice-examples already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking spearow/juice-examples against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-6/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/spearow/juice-examples:/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f5585a697a7591f735d5b72cff143e261f0134672ea01ab63e876fcfb8b6bc10
[INFO] running `"docker" "start" "-a" "f5585a697a7591f735d5b72cff143e261f0134672ea01ab63e876fcfb8b6bc10"`
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[INFO] [stderr] warning: unused import: `docopt::Docopt`
[INFO] [stderr]   --> src/main.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | use docopt::Docopt;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MAIN_USAGE`
[INFO] [stderr]   --> src/main.rs:44:1
[INFO] [stderr]    |
[INFO] [stderr] 44 | / const MAIN_USAGE: &'static str = "
[INFO] [stderr] 45 | | Juice Examples
[INFO] [stderr] 46 | |
[INFO] [stderr] 47 | | Usage:
[INFO] [stderr] ...  |
[INFO] [stderr] 59 | |     --version               Show version.
[INFO] [stderr] 60 | | ";
[INFO] [stderr]    | |__^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `download_datasets`
[INFO] [stderr]   --> src/main.rs:74:1
[INFO] [stderr]    |
[INFO] [stderr] 74 | fn download_datasets(datasets: &[&str], base_url: &str) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `unzip_datasets`
[INFO] [stderr]    --> src/main.rs:118:1
[INFO] [stderr]     |
[INFO] [stderr] 118 | fn unzip_datasets(datasets: &[&str]) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run_mnist`
[INFO] [stderr]    --> src/main.rs:209:1
[INFO] [stderr]     |
[INFO] [stderr] 209 | / fn run_mnist(
[INFO] [stderr] 210 | |     model_name: Option<String>,
[INFO] [stderr] 211 | |     batch_size: Option<usize>,
[INFO] [stderr] 212 | |     learning_rate: Option<f32>,
[INFO] [stderr] ...   |
[INFO] [stderr] 373 | |     }
[INFO] [stderr] 374 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run_fashion`
[INFO] [stderr]    --> src/main.rs:377:1
[INFO] [stderr]     |
[INFO] [stderr] 377 | / fn run_fashion(
[INFO] [stderr] 378 | |     model_name: Option<String>,
[INFO] [stderr] 379 | |     batch_size: Option<usize>,
[INFO] [stderr] 380 | |     learning_rate: Option<f32>,
[INFO] [stderr] ...   |
[INFO] [stderr] 531 | |     }
[INFO] [stderr] 532 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 27s
[INFO] running `"docker" "inspect" "f5585a697a7591f735d5b72cff143e261f0134672ea01ab63e876fcfb8b6bc10"`
[INFO] running `"docker" "rm" "-f" "f5585a697a7591f735d5b72cff143e261f0134672ea01ab63e876fcfb8b6bc10"`
[INFO] [stdout] f5585a697a7591f735d5b72cff143e261f0134672ea01ab63e876fcfb8b6bc10