[INFO] updating cached repository sjeohp/clust-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sjeohp/clust-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sjeohp/clust-rs" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/sjeohp/clust-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/sjeohp/clust-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sjeohp/clust-rs" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/sjeohp/clust-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/sjeohp/clust-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5874d31eb5ce6aeef6b557f1642704fc20a25d07
[INFO] sha for GitHub repo sjeohp/clust-rs: 5874d31eb5ce6aeef6b557f1642704fc20a25d07
[INFO] validating manifest of sjeohp/clust-rs 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 sjeohp/clust-rs 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 sjeohp/clust-rs
[INFO] finished frobbing sjeohp/clust-rs
[INFO] frobbed toml for sjeohp/clust-rs written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/sjeohp/clust-rs/Cargo.toml
[INFO] started frobbing sjeohp/clust-rs
[INFO] finished frobbing sjeohp/clust-rs
[INFO] frobbed toml for sjeohp/clust-rs written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/sjeohp/clust-rs/Cargo.toml
[INFO] crate sjeohp/clust-rs 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 sjeohp/clust-rs against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-2/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/sjeohp/clust-rs:/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] 06e67409a95e2b30f4f69d4a03e6d4bfa36277bdf7a181693c1b80a665c762c2
[INFO] running `"docker" "start" "-a" "06e67409a95e2b30f4f69d4a03e6d4bfa36277bdf7a181693c1b80a665c762c2"`
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking num-complex v0.2.1
[INFO] [stderr]     Checking kdtree v0.5.1
[INFO] [stderr]     Checking clust-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `itertools::Itertools`
[INFO] [stderr]  --> src/kmeans.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use itertools::Itertools;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::seq::index::sample`
[INFO] [stderr]  --> src/kmeans.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use rand::seq::index::sample;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/kmeans.rs:29:55
[INFO] [stderr]    |
[INFO] [stderr] 29 |                     let mut sums = vec![Array1::zeros((data.cols())); nclust];
[INFO] [stderr]    |                                                       ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `itertools::Itertools`
[INFO] [stderr]  --> src/kmeans.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use itertools::Itertools;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::seq::index::sample`
[INFO] [stderr]  --> src/kmeans.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use rand::seq::index::sample;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/kmeans.rs:29:55
[INFO] [stderr]    |
[INFO] [stderr] 29 |                     let mut sums = vec![Array1::zeros((data.cols())); nclust];
[INFO] [stderr]    |                                                       ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.30s
[INFO] running `"docker" "inspect" "06e67409a95e2b30f4f69d4a03e6d4bfa36277bdf7a181693c1b80a665c762c2"`
[INFO] running `"docker" "rm" "-f" "06e67409a95e2b30f4f69d4a03e6d4bfa36277bdf7a181693c1b80a665c762c2"`
[INFO] [stdout] 06e67409a95e2b30f4f69d4a03e6d4bfa36277bdf7a181693c1b80a665c762c2