[INFO] fetching crate smartcore 0.4.2...
[INFO] building smartcore-0.4.2 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate smartcore 0.4.2 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate smartcore 0.4.2
[INFO] finished tweaking crates.io crate smartcore 0.4.2
[INFO] tweaked toml for crates.io crate smartcore 0.4.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate smartcore 0.4.2 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate smartcore 0.4.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07e9d505b80697de2ffa7f0bf7e62935e1571e1c333925b99470eb37218b6812
[INFO] running `Command { std: "docker" "start" "-a" "07e9d505b80697de2ffa7f0bf7e62935e1571e1c333925b99470eb37218b6812", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07e9d505b80697de2ffa7f0bf7e62935e1571e1c333925b99470eb37218b6812", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07e9d505b80697de2ffa7f0bf7e62935e1571e1c333925b99470eb37218b6812", kill_on_drop: false }`
[INFO] [stdout] 07e9d505b80697de2ffa7f0bf7e62935e1571e1c333925b99470eb37218b6812
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4f5ac7c58516a937ed967f50530a466dd96971f30ddb8cf9e4bf7fbc0e2e1ae
[INFO] running `Command { std: "docker" "start" "-a" "d4f5ac7c58516a937ed967f50530a466dd96971f30ddb8cf9e4bf7fbc0e2e1ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling num v0.4.3
[INFO] [stderr]    Compiling smartcore v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/optimization/line_search.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |         f: &(dyn Fn(T) -> T),
[INFO] [stdout]   |             ^              ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 9 -         f: &(dyn Fn(T) -> T),
[INFO] [stdout] 9 +         f: &dyn Fn(T) -> T,
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/optimization/line_search.rs:10:14
[INFO] [stdout]    |
[INFO] [stdout] 10 |         df: &(dyn Fn(T) -> T),
[INFO] [stdout]    |              ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 10 -         df: &(dyn Fn(T) -> T),
[INFO] [stdout] 10 +         df: &dyn Fn(T) -> T,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/optimization/line_search.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         f: &(dyn Fn(T) -> T),
[INFO] [stdout]    |             ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 58 -         f: &(dyn Fn(T) -> T),
[INFO] [stdout] 58 +         f: &dyn Fn(T) -> T,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/optimization/line_search.rs:59:13
[INFO] [stdout]    |
[INFO] [stdout] 59 |         _: &(dyn Fn(T) -> T),
[INFO] [stdout]    |             ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 59 -         _: &(dyn Fn(T) -> T),
[INFO] [stdout] 59 +         _: &dyn Fn(T) -> T,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/xgboost/xgb_regressor.rs:99:45
[INFO] [stdout]    |
[INFO] [stdout] 99 |                 .map(|(true_val, pred_val)| (*pred_val - true_val.to_f64().unwrap()))
[INFO] [stdout]    |                                             ^                                      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 99 -                 .map(|(true_val, pred_val)| (*pred_val - true_val.to_f64().unwrap()))
[INFO] [stdout] 99 +                 .map(|(true_val, pred_val)| *pred_val - true_val.to_f64().unwrap())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `quick_argsort_mut` is never used
[INFO] [stdout]  --> src/algorithm/sort/quick_sort.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait QuickArgSort {
[INFO] [stdout]   |           ------------ method in this trait
[INFO] [stdout] 4 |     fn quick_argsort_mut(&mut self) -> Vec<usize>;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.94s
[INFO] running `Command { std: "docker" "inspect" "d4f5ac7c58516a937ed967f50530a466dd96971f30ddb8cf9e4bf7fbc0e2e1ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4f5ac7c58516a937ed967f50530a466dd96971f30ddb8cf9e4bf7fbc0e2e1ae", kill_on_drop: false }`
[INFO] [stdout] d4f5ac7c58516a937ed967f50530a466dd96971f30ddb8cf9e4bf7fbc0e2e1ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f395cbe94386855c632cd80ce24429dc2fb01b5c749f995ee2c0b9a8c2d71e56
[INFO] running `Command { std: "docker" "start" "-a" "f395cbe94386855c632cd80ce24429dc2fb01b5c749f995ee2c0b9a8c2d71e56", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling serde_json v1.0.137
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling itoa v1.0.14
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling num v0.4.3
[INFO] [stderr]    Compiling smartcore v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/optimization/line_search.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |         f: &(dyn Fn(T) -> T),
[INFO] [stdout]   |             ^              ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 9 -         f: &(dyn Fn(T) -> T),
[INFO] [stdout] 9 +         f: &dyn Fn(T) -> T,
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/optimization/line_search.rs:10:14
[INFO] [stdout]    |
[INFO] [stdout] 10 |         df: &(dyn Fn(T) -> T),
[INFO] [stdout]    |              ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 10 -         df: &(dyn Fn(T) -> T),
[INFO] [stdout] 10 +         df: &dyn Fn(T) -> T,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/optimization/line_search.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         f: &(dyn Fn(T) -> T),
[INFO] [stdout]    |             ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 58 -         f: &(dyn Fn(T) -> T),
[INFO] [stdout] 58 +         f: &dyn Fn(T) -> T,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/optimization/line_search.rs:59:13
[INFO] [stdout]    |
[INFO] [stdout] 59 |         _: &(dyn Fn(T) -> T),
[INFO] [stdout]    |             ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 59 -         _: &(dyn Fn(T) -> T),
[INFO] [stdout] 59 +         _: &dyn Fn(T) -> T,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/xgboost/xgb_regressor.rs:99:45
[INFO] [stdout]    |
[INFO] [stdout] 99 |                 .map(|(true_val, pred_val)| (*pred_val - true_val.to_f64().unwrap()))
[INFO] [stdout]    |                                             ^                                      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 99 -                 .map(|(true_val, pred_val)| (*pred_val - true_val.to_f64().unwrap()))
[INFO] [stdout] 99 +                 .map(|(true_val, pred_val)| *pred_val - true_val.to_f64().unwrap())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `quick_argsort_mut` is never used
[INFO] [stdout]  --> src/algorithm/sort/quick_sort.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait QuickArgSort {
[INFO] [stdout]   |           ------------ method in this trait
[INFO] [stdout] 4 |     fn quick_argsort_mut(&mut self) -> Vec<usize>;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/optimization/line_search.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |         f: &(dyn Fn(T) -> T),
[INFO] [stdout]   |             ^              ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 9 -         f: &(dyn Fn(T) -> T),
[INFO] [stdout] 9 +         f: &dyn Fn(T) -> T,
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/optimization/line_search.rs:10:14
[INFO] [stdout]    |
[INFO] [stdout] 10 |         df: &(dyn Fn(T) -> T),
[INFO] [stdout]    |              ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 10 -         df: &(dyn Fn(T) -> T),
[INFO] [stdout] 10 +         df: &dyn Fn(T) -> T,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/optimization/line_search.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         f: &(dyn Fn(T) -> T),
[INFO] [stdout]    |             ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 58 -         f: &(dyn Fn(T) -> T),
[INFO] [stdout] 58 +         f: &dyn Fn(T) -> T,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/optimization/line_search.rs:59:13
[INFO] [stdout]    |
[INFO] [stdout] 59 |         _: &(dyn Fn(T) -> T),
[INFO] [stdout]    |             ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 59 -         _: &(dyn Fn(T) -> T),
[INFO] [stdout] 59 +         _: &dyn Fn(T) -> T,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/xgboost/xgb_regressor.rs:99:45
[INFO] [stdout]    |
[INFO] [stdout] 99 |                 .map(|(true_val, pred_val)| (*pred_val - true_val.to_f64().unwrap()))
[INFO] [stdout]    |                                             ^                                      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 99 -                 .map(|(true_val, pred_val)| (*pred_val - true_val.to_f64().unwrap()))
[INFO] [stdout] 99 +                 .map(|(true_val, pred_val)| *pred_val - true_val.to_f64().unwrap())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 44.45s
[INFO] running `Command { std: "docker" "inspect" "f395cbe94386855c632cd80ce24429dc2fb01b5c749f995ee2c0b9a8c2d71e56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f395cbe94386855c632cd80ce24429dc2fb01b5c749f995ee2c0b9a8c2d71e56", kill_on_drop: false }`
[INFO] [stdout] f395cbe94386855c632cd80ce24429dc2fb01b5c749f995ee2c0b9a8c2d71e56