[INFO] fetching crate classif 0.0.2...
[INFO] checking classif-0.0.2 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate classif 0.0.2 into /workspace/builds/worker-4-tc2/source
[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 /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate classif 0.0.2 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] [stderr]       Adding num-traits v0.1.43 (available: v0.2.19)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93752c87e2808f8a8f850fbde36a5ca62d2bfefdee9a2cdd37804e394f46e22e
[INFO] running `Command { std: "docker" "start" "-a" "93752c87e2808f8a8f850fbde36a5ca62d2bfefdee9a2cdd37804e394f46e22e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93752c87e2808f8a8f850fbde36a5ca62d2bfefdee9a2cdd37804e394f46e22e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93752c87e2808f8a8f850fbde36a5ca62d2bfefdee9a2cdd37804e394f46e22e", kill_on_drop: false }`
[INFO] [stdout] 93752c87e2808f8a8f850fbde36a5ca62d2bfefdee9a2cdd37804e394f46e22e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d95aad7e005b52dffafe5637dfbc79f89b92edf42ef096aca1a0ac3fc970c454
[INFO] running `Command { std: "docker" "start" "-a" "d95aad7e005b52dffafe5637dfbc79f89b92edf42ef096aca1a0ac3fc970c454", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking classif v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/jenks.rs:71:16
[INFO] [stdout]    |
[INFO] [stdout] 71 |         kclass[(j - 2)] = n;
[INFO] [stdout]    |                ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 71 -         kclass[(j - 2)] = n;
[INFO] [stdout] 71 +         kclass[j - 2] = n;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/jenks.rs:77:35
[INFO] [stdout]    |
[INFO] [stdout] 77 |         breaks.push(sorted_values[(kclass[i - 1usize] - 1)]);
[INFO] [stdout]    |                                   ^                      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 77 -         breaks.push(sorted_values[(kclass[i - 1usize] - 1)]);
[INFO] [stdout] 77 +         breaks.push(sorted_values[kclass[i - 1usize] - 1]);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/jenks.rs:79:31
[INFO] [stdout]    |
[INFO] [stdout] 79 |     breaks.push(sorted_values[(nb_elem - 1)]);
[INFO] [stdout]    |                               ^           ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 79 -     breaks.push(sorted_values[(nb_elem - 1)]);
[INFO] [stdout] 79 +     breaks.push(sorted_values[nb_elem - 1]);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/jenks.rs:71:16
[INFO] [stdout]    |
[INFO] [stdout] 71 |         kclass[(j - 2)] = n;
[INFO] [stdout]    |                ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 71 -         kclass[(j - 2)] = n;
[INFO] [stdout] 71 +         kclass[j - 2] = n;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/jenks.rs:77:35
[INFO] [stdout]    |
[INFO] [stdout] 77 |         breaks.push(sorted_values[(kclass[i - 1usize] - 1)]);
[INFO] [stdout]    |                                   ^                      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 77 -         breaks.push(sorted_values[(kclass[i - 1usize] - 1)]);
[INFO] [stdout] 77 +         breaks.push(sorted_values[kclass[i - 1usize] - 1]);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/jenks.rs:79:31
[INFO] [stdout]    |
[INFO] [stdout] 79 |     breaks.push(sorted_values[(nb_elem - 1)]);
[INFO] [stdout]    |                               ^           ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 79 -     breaks.push(sorted_values[(nb_elem - 1)]);
[INFO] [stdout] 79 +     breaks.push(sorted_values[nb_elem - 1]);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/jenks.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let mut v = unsafe { self.values.get_unchecked_mut(ix.0 * self.dim + ix.1) };
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/jenks.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let mut v = unsafe { self.values.get_unchecked_mut(ix.0 * self.dim + ix.1) };
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]  --> src/stats.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     values.iter().map(|v| sum += *v).collect::<Vec<_>>();
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let _ = values.iter().map(|v| sum += *v).collect::<Vec<_>>();
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]  --> src/stats.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     values.iter().map(|v| sum += *v).collect::<Vec<_>>();
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let _ = values.iter().map(|v| sum += *v).collect::<Vec<_>>();
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mean`
[INFO] [stdout]   --> benches/benchmark.rs:13:25
[INFO] [stdout]    |
[INFO] [stdout] 13 |     bench.iter(|| { let mean = stats::mean(&a); });
[INFO] [stdout]    |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_mean`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mean`
[INFO] [stdout]   --> benches/benchmark.rs:20:25
[INFO] [stdout]    |
[INFO] [stdout] 20 |     bench.iter(|| { let mean = stats::kurtosis(&a); });
[INFO] [stdout]    |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_mean`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mean`
[INFO] [stdout]   --> benches/benchmark.rs:27:25
[INFO] [stdout]    |
[INFO] [stdout] 27 |     bench.iter(|| { let mean = stats::variance(&a); });
[INFO] [stdout]    |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_mean`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> benches/benchmark.rs:36:24
[INFO] [stdout]    |
[INFO] [stdout] 36 |                    let b = get_head_tail_breaks(&a);
[INFO] [stdout]    |                        ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> benches/benchmark.rs:44:25
[INFO] [stdout]    |
[INFO] [stdout] 44 |     bench.iter(|| { let b = BoundsInfo::new(5, &a, Classification::HeadTail).unwrap(); });
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> benches/benchmark.rs:52:25
[INFO] [stdout]    |
[INFO] [stdout] 52 |     bench.iter(|| { let b = get_jenks_breaks(&a, 5); });
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> benches/benchmark.rs:61:24
[INFO] [stdout]    |
[INFO] [stdout] 61 |                    let b = get_jenks_breaks(&a, 5);
[INFO] [stdout]    |                        ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> benches/benchmark.rs:69:25
[INFO] [stdout]    |
[INFO] [stdout] 69 |     bench.iter(|| { let b = BoundsInfo::new(5, &a, Classification::JenksNaturalBreaks).unwrap(); });
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "d95aad7e005b52dffafe5637dfbc79f89b92edf42ef096aca1a0ac3fc970c454", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d95aad7e005b52dffafe5637dfbc79f89b92edf42ef096aca1a0ac3fc970c454", kill_on_drop: false }`
[INFO] [stdout] d95aad7e005b52dffafe5637dfbc79f89b92edf42ef096aca1a0ac3fc970c454