[INFO] crate classif 0.0.2 is already in cache
[INFO] testing classif-0.0.2 against 1.38.0 for beta-1.39-1
[INFO] extracting crate classif 0.0.2 into work/builds/worker-0/source
[INFO] validating manifest of crates.io crate classif 0.0.2 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate classif 0.0.2
[INFO] finished tweaking crates.io crate classif 0.0.2
[INFO] tweaked toml for crates.io crate classif 0.0.2 written to work/builds/worker-0/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] e7a6a5dfc984326e92f031437f5788bc178d8c50c5c2411babc5aea873b7873b
[INFO] running `"docker" "start" "-a" "e7a6a5dfc984326e92f031437f5788bc178d8c50c5c2411babc5aea873b7873b"`
[INFO] [stderr]    Compiling classif v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/jenks.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let mut v = unsafe { self.values.get_unchecked_mut(ix.0 * self.dim + ix.1) };
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
[INFO] [stderr]  --> src/stats.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     values.iter().map(|v| sum += *v).collect::<Vec<_>>();
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]   = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `"docker" "inspect" "e7a6a5dfc984326e92f031437f5788bc178d8c50c5c2411babc5aea873b7873b"`
[INFO] running `"docker" "rm" "-f" "e7a6a5dfc984326e92f031437f5788bc178d8c50c5c2411babc5aea873b7873b"`
[INFO] [stdout] e7a6a5dfc984326e92f031437f5788bc178d8c50c5c2411babc5aea873b7873b
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 80a00d396f735ba1a7e23c7f1d2ead698a9b7de2d3847f74a03ca65de70f6ffa
[INFO] running `"docker" "start" "-a" "80a00d396f735ba1a7e23c7f1d2ead698a9b7de2d3847f74a03ca65de70f6ffa"`
[INFO] [stderr]    Compiling classif v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/jenks.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let mut v = unsafe { self.values.get_unchecked_mut(ix.0 * self.dim + ix.1) };
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
[INFO] [stderr]  --> src/stats.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     values.iter().map(|v| sum += *v).collect::<Vec<_>>();
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]   = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "80a00d396f735ba1a7e23c7f1d2ead698a9b7de2d3847f74a03ca65de70f6ffa"`
[INFO] running `"docker" "rm" "-f" "80a00d396f735ba1a7e23c7f1d2ead698a9b7de2d3847f74a03ca65de70f6ffa"`
[INFO] [stdout] 80a00d396f735ba1a7e23c7f1d2ead698a9b7de2d3847f74a03ca65de70f6ffa
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 907a4f601c6c1cde6c24aa1299bdc72c22e568e449c6da872a25568313ad1dec
[INFO] running `"docker" "start" "-a" "907a4f601c6c1cde6c24aa1299bdc72c22e568e449c6da872a25568313ad1dec"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/classif-6730513d9af60b2b
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test tests::test_arithmetic_breaks ... ok
[INFO] [stdout] test tests::test_get_class_index ... ok
[INFO] [stdout] test tests::test_kurtosis ... ok
[INFO] [stdout] test tests::test_equal_interval_breaks ... ok
[INFO] [stdout] test tests::test_head_tail ... ok
[INFO] [stdout] test tests::test_root_mean_square ... ok
[INFO] [stdout] test tests::test_median ... ok
[INFO] [stdout] test tests::test_quantiles_breaks ... ok
[INFO] [stdout] test tests::test_variance ... ok
[INFO] [stdout] test tests::test_jenks_breaks ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests classif
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/classif.rs - classif::BoundsInfo (line 46) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "907a4f601c6c1cde6c24aa1299bdc72c22e568e449c6da872a25568313ad1dec"`
[INFO] running `"docker" "rm" "-f" "907a4f601c6c1cde6c24aa1299bdc72c22e568e449c6da872a25568313ad1dec"`
[INFO] [stdout] 907a4f601c6c1cde6c24aa1299bdc72c22e568e449c6da872a25568313ad1dec