Nov 28 14:07:44.605 INFO checking CloneRob/iron_woods against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 14:07:44.605 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-4/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 28 14:07:45.077 INFO [stdout] 19d076677708d7d28d6be314073c522b5181c0fea9ce99b9299322e2166eec32
Nov 28 14:07:45.082 INFO running `"docker" "start" "-a" "19d076677708d7d28d6be314073c522b5181c0fea9ce99b9299322e2166eec32"`
Nov 28 14:07:46.176 INFO [stderr] usermod: no changes
Nov 28 14:07:46.240 INFO [stderr]     Checking iron_woods v0.1.0 (/source)
Nov 28 14:07:46.692 INFO [stderr] warning: unused import: `std::collections::HashMap`
Nov 28 14:07:46.692 INFO [stderr]  --> src/main.rs:1:5
Nov 28 14:07:46.692 INFO [stderr]   |
Nov 28 14:07:46.692 INFO [stderr] 1 | use std::collections::HashMap;
Nov 28 14:07:46.692 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 14:07:46.692 INFO [stderr]   |
Nov 28 14:07:46.693 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 14:07:46.693 INFO [stderr] 
Nov 28 14:07:46.693 INFO [stderr] warning: unused import: `std::cmp`
Nov 28 14:07:46.693 INFO [stderr]  --> src/feature/mod.rs:1:5
Nov 28 14:07:46.693 INFO [stderr]   |
Nov 28 14:07:46.693 INFO [stderr] 1 | use std::cmp;
Nov 28 14:07:46.693 INFO [stderr]   |     ^^^^^^^^
Nov 28 14:07:46.693 INFO [stderr] 
Nov 28 14:07:46.693 INFO [stderr] warning: unused import: `Hash`
Nov 28 14:07:46.693 INFO [stderr]  --> src/feature/mod.rs:3:17
Nov 28 14:07:46.693 INFO [stderr]   |
Nov 28 14:07:46.693 INFO [stderr] 3 | use std::hash::{Hash, Hasher};
Nov 28 14:07:46.693 INFO [stderr]   |                 ^^^^
Nov 28 14:07:46.693 INFO [stderr] 
Nov 28 14:07:46.693 INFO [stderr] warning: unused import: `std::iter::FromIterator`
Nov 28 14:07:46.693 INFO [stderr]  --> src/feature/mod.rs:4:5
Nov 28 14:07:46.693 INFO [stderr]   |
Nov 28 14:07:46.693 INFO [stderr] 4 | use std::iter::FromIterator;
Nov 28 14:07:46.693 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 14:07:46.693 INFO [stderr] 
Nov 28 14:07:46.693 INFO [stderr] warning: unused imports: `Index`, `RangeFrom`, `RangeTo`
Nov 28 14:07:46.693 INFO [stderr]  --> src/feature/mod.rs:5:16
Nov 28 14:07:46.693 INFO [stderr]   |
Nov 28 14:07:46.693 INFO [stderr] 5 | use std::ops::{Index, RangeTo, RangeFrom};
Nov 28 14:07:46.694 INFO [stderr]   |                ^^^^^  ^^^^^^^  ^^^^^^^^^
Nov 28 14:07:46.694 INFO [stderr] 
Nov 28 14:07:46.694 INFO [stderr] warning: unused import: `HashSet`
Nov 28 14:07:46.694 INFO [stderr]  --> src/feature/mod.rs:6:24
Nov 28 14:07:46.694 INFO [stderr]   |
Nov 28 14:07:46.694 INFO [stderr] 6 | use std::collections::{HashSet, HashMap};
Nov 28 14:07:46.694 INFO [stderr]   |                        ^^^^^^^
Nov 28 14:07:46.694 INFO [stderr] 
Nov 28 14:07:46.808 INFO [stderr] warning: unused import: `Hasher`
Nov 28 14:07:46.808 INFO [stderr]  --> src/feature/mod.rs:3:23
Nov 28 14:07:46.808 INFO [stderr]   |
Nov 28 14:07:46.808 INFO [stderr] 3 | use std::hash::{Hash, Hasher};
Nov 28 14:07:46.809 INFO [stderr]   |                       ^^^^^^
Nov 28 14:07:46.809 INFO [stderr] 
Nov 28 14:07:46.818 INFO [stderr] warning: unused variable: `value_index`
Nov 28 14:07:46.818 INFO [stderr]   --> src/decision_tree/mod.rs:33:18
Nov 28 14:07:46.818 INFO [stderr]    |
Nov 28 14:07:46.818 INFO [stderr] 33 |             for (value_index, value) in feature.iter().enumerate() {
Nov 28 14:07:46.818 INFO [stderr]    |                  ^^^^^^^^^^^ help: consider using `_value_index` instead
Nov 28 14:07:46.818 INFO [stderr]    |
Nov 28 14:07:46.819 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 14:07:46.819 INFO [stderr] 
Nov 28 14:07:46.819 INFO [stderr] warning: unused variable: `depth`
Nov 28 14:07:46.819 INFO [stderr]   --> src/decision_tree/mod.rs:30:49
Nov 28 14:07:46.819 INFO [stderr]    |
Nov 28 14:07:46.819 INFO [stderr] 30 |     fn build_tree(&mut self, dataset: &Dataset, depth: usize) -> DecisionTree {
Nov 28 14:07:46.819 INFO [stderr]    |                                                 ^^^^^ help: consider using `_depth` instead
Nov 28 14:07:46.819 INFO [stderr] 
Nov 28 14:07:46.822 INFO [stderr] warning: unused variable: `data`
Nov 28 14:07:46.822 INFO [stderr]   --> src/decision_tree/mod.rs:51:34
Nov 28 14:07:46.822 INFO [stderr]    |
Nov 28 14:07:46.822 INFO [stderr] 51 |     fn argmin_cost<D: Splitable>(data: D) -> (f32, usize, Value) {
Nov 28 14:07:46.822 INFO [stderr]    |                                  ^^^^ help: consider using `_data` instead
Nov 28 14:07:46.822 INFO [stderr] 
Nov 28 14:07:46.863 INFO [stderr] warning: field is never used: `root`
Nov 28 14:07:46.863 INFO [stderr]  --> src/decision_tree/mod.rs:7:5
Nov 28 14:07:46.863 INFO [stderr]   |
Nov 28 14:07:46.863 INFO [stderr] 7 |     root: Option<DecisionNode>,
Nov 28 14:07:46.863 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 14:07:46.863 INFO [stderr]   |
Nov 28 14:07:46.863 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 28 14:07:46.863 INFO [stderr] 
Nov 28 14:07:46.863 INFO [stderr] warning: field is never used: `min_split`
Nov 28 14:07:46.863 INFO [stderr]  --> src/decision_tree/mod.rs:8:5
Nov 28 14:07:46.863 INFO [stderr]   |
Nov 28 14:07:46.863 INFO [stderr] 8 |     min_split: usize,
Nov 28 14:07:46.863 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Nov 28 14:07:46.863 INFO [stderr] 
Nov 28 14:07:46.863 INFO [stderr] warning: field is never used: `min_impurity`
Nov 28 14:07:46.863 INFO [stderr]  --> src/decision_tree/mod.rs:9:5
Nov 28 14:07:46.863 INFO [stderr]   |
Nov 28 14:07:46.863 INFO [stderr] 9 |     min_impurity: f32,
Nov 28 14:07:46.863 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Nov 28 14:07:46.863 INFO [stderr] 
Nov 28 14:07:46.863 INFO [stderr] warning: field is never used: `max_depth`
Nov 28 14:07:46.863 INFO [stderr]   --> src/decision_tree/mod.rs:10:5
Nov 28 14:07:46.863 INFO [stderr]    |
Nov 28 14:07:46.863 INFO [stderr] 10 |     max_depth: usize,
Nov 28 14:07:46.863 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Nov 28 14:07:46.863 INFO [stderr] 
Nov 28 14:07:46.866 INFO [stderr] warning: field is never used: `cost_fn`
Nov 28 14:07:46.866 INFO [stderr]   --> src/decision_tree/mod.rs:11:5
Nov 28 14:07:46.866 INFO [stderr]    |
Nov 28 14:07:46.866 INFO [stderr] 11 |     cost_fn: fn(&[f32]) -> f32,
Nov 28 14:07:46.866 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 14:07:46.866 INFO [stderr] 
Nov 28 14:07:46.866 INFO [stderr] warning: field is never used: `leaf_fn`
Nov 28 14:07:46.866 INFO [stderr]   --> src/decision_tree/mod.rs:12:5
Nov 28 14:07:46.866 INFO [stderr]    |
Nov 28 14:07:46.866 INFO [stderr] 12 |     leaf_fn: fn() -> f32,
Nov 28 14:07:46.866 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Nov 28 14:07:46.866 INFO [stderr] 
Nov 28 14:07:46.866 INFO [stderr] warning: method is never used: `build_tree`
Nov 28 14:07:46.866 INFO [stderr]   --> src/decision_tree/mod.rs:30:5
Nov 28 14:07:46.866 INFO [stderr]    |
Nov 28 14:07:46.866 INFO [stderr] 30 |     fn build_tree(&mut self, dataset: &Dataset, depth: usize) -> DecisionTree {
Nov 28 14:07:46.866 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 14:07:46.866 INFO [stderr] 
Nov 28 14:07:46.866 INFO [stderr] warning: method is never used: `argmin_cost`
Nov 28 14:07:46.866 INFO [stderr]   --> src/decision_tree/mod.rs:51:5
Nov 28 14:07:46.866 INFO [stderr]    |
Nov 28 14:07:46.866 INFO [stderr] 51 |     fn argmin_cost<D: Splitable>(data: D) -> (f32, usize, Value) {
Nov 28 14:07:46.866 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 14:07:46.866 INFO [stderr] 
Nov 28 14:07:46.928 INFO [stderr] warning: unused import: `std::collections::HashMap`
Nov 28 14:07:46.929 INFO [stderr]  --> src/main.rs:1:5
Nov 28 14:07:46.929 INFO [stderr]   |
Nov 28 14:07:46.929 INFO [stderr] 1 | use std::collections::HashMap;
Nov 28 14:07:46.929 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 14:07:46.929 INFO [stderr]   |
Nov 28 14:07:46.929 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 14:07:46.929 INFO [stderr] 
Nov 28 14:07:46.929 INFO [stderr] warning: unused import: `std::cmp`
Nov 28 14:07:46.929 INFO [stderr]  --> src/feature/mod.rs:1:5
Nov 28 14:07:46.929 INFO [stderr]   |
Nov 28 14:07:46.929 INFO [stderr] 1 | use std::cmp;
Nov 28 14:07:46.929 INFO [stderr]   |     ^^^^^^^^
Nov 28 14:07:46.929 INFO [stderr] 
Nov 28 14:07:46.929 INFO [stderr] warning: unused import: `Hash`
Nov 28 14:07:46.929 INFO [stderr]  --> src/feature/mod.rs:3:17
Nov 28 14:07:46.929 INFO [stderr]   |
Nov 28 14:07:46.929 INFO [stderr] 3 | use std::hash::{Hash, Hasher};
Nov 28 14:07:46.929 INFO [stderr]   |                 ^^^^
Nov 28 14:07:46.929 INFO [stderr] 
Nov 28 14:07:46.929 INFO [stderr] warning: unused import: `std::iter::FromIterator`
Nov 28 14:07:46.929 INFO [stderr]  --> src/feature/mod.rs:4:5
Nov 28 14:07:46.929 INFO [stderr]   |
Nov 28 14:07:46.929 INFO [stderr] 4 | use std::iter::FromIterator;
Nov 28 14:07:46.929 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 14:07:46.930 INFO [stderr] 
Nov 28 14:07:46.930 INFO [stderr] warning: unused imports: `Index`, `RangeFrom`, `RangeTo`
Nov 28 14:07:46.930 INFO [stderr]  --> src/feature/mod.rs:5:16
Nov 28 14:07:46.930 INFO [stderr]   |
Nov 28 14:07:46.930 INFO [stderr] 5 | use std::ops::{Index, RangeTo, RangeFrom};
Nov 28 14:07:46.930 INFO [stderr]   |                ^^^^^  ^^^^^^^  ^^^^^^^^^
Nov 28 14:07:46.930 INFO [stderr] 
Nov 28 14:07:46.930 INFO [stderr] warning: unused import: `HashSet`
Nov 28 14:07:46.930 INFO [stderr]  --> src/feature/mod.rs:6:24
Nov 28 14:07:46.930 INFO [stderr]   |
Nov 28 14:07:46.930 INFO [stderr] 6 | use std::collections::{HashSet, HashMap};
Nov 28 14:07:46.930 INFO [stderr]   |                        ^^^^^^^
Nov 28 14:07:46.930 INFO [stderr] 
Nov 28 14:07:47.040 INFO [stderr] warning: unused import: `Hasher`
Nov 28 14:07:47.040 INFO [stderr]  --> src/feature/mod.rs:3:23
Nov 28 14:07:47.040 INFO [stderr]   |
Nov 28 14:07:47.040 INFO [stderr] 3 | use std::hash::{Hash, Hasher};
Nov 28 14:07:47.040 INFO [stderr]   |                       ^^^^^^
Nov 28 14:07:47.040 INFO [stderr] 
Nov 28 14:07:47.050 INFO [stderr] warning: unused variable: `value_index`
Nov 28 14:07:47.050 INFO [stderr]   --> src/decision_tree/mod.rs:33:18
Nov 28 14:07:47.050 INFO [stderr]    |
Nov 28 14:07:47.050 INFO [stderr] 33 |             for (value_index, value) in feature.iter().enumerate() {
Nov 28 14:07:47.050 INFO [stderr]    |                  ^^^^^^^^^^^ help: consider using `_value_index` instead
Nov 28 14:07:47.051 INFO [stderr]    |
Nov 28 14:07:47.051 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 14:07:47.051 INFO [stderr] 
Nov 28 14:07:47.051 INFO [stderr] warning: unused variable: `depth`
Nov 28 14:07:47.051 INFO [stderr]   --> src/decision_tree/mod.rs:30:49
Nov 28 14:07:47.051 INFO [stderr]    |
Nov 28 14:07:47.051 INFO [stderr] 30 |     fn build_tree(&mut self, dataset: &Dataset, depth: usize) -> DecisionTree {
Nov 28 14:07:47.051 INFO [stderr]    |                                                 ^^^^^ help: consider using `_depth` instead
Nov 28 14:07:47.051 INFO [stderr] 
Nov 28 14:07:47.051 INFO [stderr] warning: unused variable: `data`
Nov 28 14:07:47.051 INFO [stderr]   --> src/decision_tree/mod.rs:51:34
Nov 28 14:07:47.051 INFO [stderr]    |
Nov 28 14:07:47.051 INFO [stderr] 51 |     fn argmin_cost<D: Splitable>(data: D) -> (f32, usize, Value) {
Nov 28 14:07:47.051 INFO [stderr]    |                                  ^^^^ help: consider using `_data` instead
Nov 28 14:07:47.051 INFO [stderr] 
Nov 28 14:07:47.088 INFO [stderr] warning: field is never used: `root`
Nov 28 14:07:47.088 INFO [stderr]  --> src/decision_tree/mod.rs:7:5
Nov 28 14:07:47.088 INFO [stderr]   |
Nov 28 14:07:47.088 INFO [stderr] 7 |     root: Option<DecisionNode>,
Nov 28 14:07:47.088 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 14:07:47.088 INFO [stderr]   |
Nov 28 14:07:47.088 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 28 14:07:47.088 INFO [stderr] 
Nov 28 14:07:47.089 INFO [stderr] warning: field is never used: `min_split`
Nov 28 14:07:47.089 INFO [stderr]  --> src/decision_tree/mod.rs:8:5
Nov 28 14:07:47.089 INFO [stderr]   |
Nov 28 14:07:47.089 INFO [stderr] 8 |     min_split: usize,
Nov 28 14:07:47.089 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Nov 28 14:07:47.089 INFO [stderr] 
Nov 28 14:07:47.089 INFO [stderr] warning: field is never used: `min_impurity`
Nov 28 14:07:47.089 INFO [stderr]  --> src/decision_tree/mod.rs:9:5
Nov 28 14:07:47.089 INFO [stderr]   |
Nov 28 14:07:47.089 INFO [stderr] 9 |     min_impurity: f32,
Nov 28 14:07:47.089 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Nov 28 14:07:47.089 INFO [stderr] 
Nov 28 14:07:47.089 INFO [stderr] warning: field is never used: `max_depth`
Nov 28 14:07:47.089 INFO [stderr]   --> src/decision_tree/mod.rs:10:5
Nov 28 14:07:47.089 INFO [stderr]    |
Nov 28 14:07:47.089 INFO [stderr] 10 |     max_depth: usize,
Nov 28 14:07:47.089 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Nov 28 14:07:47.089 INFO [stderr] 
Nov 28 14:07:47.089 INFO [stderr] warning: field is never used: `cost_fn`
Nov 28 14:07:47.089 INFO [stderr]   --> src/decision_tree/mod.rs:11:5
Nov 28 14:07:47.089 INFO [stderr]    |
Nov 28 14:07:47.089 INFO [stderr] 11 |     cost_fn: fn(&[f32]) -> f32,
Nov 28 14:07:47.089 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 14:07:47.089 INFO [stderr] 
Nov 28 14:07:47.089 INFO [stderr] warning: field is never used: `leaf_fn`
Nov 28 14:07:47.089 INFO [stderr]   --> src/decision_tree/mod.rs:12:5
Nov 28 14:07:47.089 INFO [stderr]    |
Nov 28 14:07:47.089 INFO [stderr] 12 |     leaf_fn: fn() -> f32,
Nov 28 14:07:47.089 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Nov 28 14:07:47.089 INFO [stderr] 
Nov 28 14:07:47.089 INFO [stderr] warning: method is never used: `build_tree`
Nov 28 14:07:47.089 INFO [stderr]   --> src/decision_tree/mod.rs:30:5
Nov 28 14:07:47.089 INFO [stderr]    |
Nov 28 14:07:47.089 INFO [stderr] 30 |     fn build_tree(&mut self, dataset: &Dataset, depth: usize) -> DecisionTree {
Nov 28 14:07:47.089 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 14:07:47.089 INFO [stderr] 
Nov 28 14:07:47.089 INFO [stderr] warning: method is never used: `argmin_cost`
Nov 28 14:07:47.090 INFO [stderr]   --> src/decision_tree/mod.rs:51:5
Nov 28 14:07:47.090 INFO [stderr]    |
Nov 28 14:07:47.090 INFO [stderr] 51 |     fn argmin_cost<D: Splitable>(data: D) -> (f32, usize, Value) {
Nov 28 14:07:47.090 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 14:07:47.090 INFO [stderr] 
Nov 28 14:07:47.132 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
Nov 28 14:07:47.134 INFO [stderr] su: No module specific data is present
Nov 28 14:07:48.034 INFO running `"docker" "inspect" "19d076677708d7d28d6be314073c522b5181c0fea9ce99b9299322e2166eec32"`
Nov 28 14:07:48.426 INFO running `"docker" "rm" "-f" "19d076677708d7d28d6be314073c522b5181c0fea9ce99b9299322e2166eec32"`
Nov 28 14:07:48.824 INFO [stdout] 19d076677708d7d28d6be314073c522b5181c0fea9ce99b9299322e2166eec32