Dec 19 16:06:37.964 INFO checking hgentry/euler against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 16:06:37.964 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/hgentry/euler:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 16:06:38.180 INFO [stdout] 83880dbacd8ce200eb016d1981c23924d8c3d186d2d0f4a89f63d1662d8e8369
Dec 19 16:06:38.186 INFO running `"docker" "start" "-a" "83880dbacd8ce200eb016d1981c23924d8c3d186d2d0f4a89f63d1662d8e8369"`
Dec 19 16:06:38.967 INFO [stderr]     Checking ord_subset v3.1.0
Dec 19 16:06:38.967 INFO [stderr]     Checking num-bigint v0.1.35
Dec 19 16:06:40.140 INFO [stderr]     Checking euler v0.1.0 (/opt/crater/workdir)
Dec 19 16:06:40.409 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 19 16:06:40.409 INFO [stderr]   --> src/problems/p37.rs:16:5
Dec 19 16:06:40.409 INFO [stderr]    |
Dec 19 16:06:40.409 INFO [stderr] 16 |         if(left_truncatable(p)) {
Dec 19 16:06:40.409 INFO [stderr]    |           ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 16:06:40.409 INFO [stderr]    |
Dec 19 16:06:40.409 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 19 16:06:40.409 INFO [stderr] 
Dec 19 16:06:40.416 INFO [stderr] warning: unused import: `utils::primes`
Dec 19 16:06:40.416 INFO [stderr]  --> src/problems/p40.rs:1:5
Dec 19 16:06:40.416 INFO [stderr]   |
Dec 19 16:06:40.416 INFO [stderr] 1 | use utils::primes;
Dec 19 16:06:40.416 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 19 16:06:40.416 INFO [stderr]   |
Dec 19 16:06:40.416 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 16:06:40.416 INFO [stderr] 
Dec 19 16:06:40.416 INFO [stderr] warning: unused import: `utils::primes`
Dec 19 16:06:40.416 INFO [stderr]  --> src/problems/p42.rs:1:5
Dec 19 16:06:40.416 INFO [stderr]   |
Dec 19 16:06:40.416 INFO [stderr] 1 | use utils::primes;
Dec 19 16:06:40.416 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 19 16:06:40.416 INFO [stderr] 
Dec 19 16:06:40.416 INFO [stderr] warning: unused import: `utils::vec`
Dec 19 16:06:40.416 INFO [stderr]  --> src/problems/p43.rs:1:5
Dec 19 16:06:40.416 INFO [stderr]   |
Dec 19 16:06:40.416 INFO [stderr] 1 | use utils::vec;
Dec 19 16:06:40.416 INFO [stderr]   |     ^^^^^^^^^^
Dec 19 16:06:40.416 INFO [stderr] 
Dec 19 16:06:40.417 INFO [stderr] warning: unused import: `std::collections::BTreeMap`
Dec 19 16:06:40.417 INFO [stderr]  --> src/problems/p615.rs:1:5
Dec 19 16:06:40.417 INFO [stderr]   |
Dec 19 16:06:40.417 INFO [stderr] 1 | use std::collections::BTreeMap;
Dec 19 16:06:40.417 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:06:40.417 INFO [stderr] 
Dec 19 16:06:40.417 INFO [stderr] warning: unused import: `std::cell::RefCell`
Dec 19 16:06:40.417 INFO [stderr]  --> src/problems/p615.rs:3:5
Dec 19 16:06:40.417 INFO [stderr]   |
Dec 19 16:06:40.417 INFO [stderr] 3 | use std::cell::RefCell;
Dec 19 16:06:40.417 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 19 16:06:40.417 INFO [stderr] 
Dec 19 16:06:40.417 INFO [stderr] warning: unused import: `std::rc::Rc`
Dec 19 16:06:40.417 INFO [stderr]  --> src/problems/p615.rs:4:5
Dec 19 16:06:40.417 INFO [stderr]   |
Dec 19 16:06:40.417 INFO [stderr] 4 | use std::rc::Rc;
Dec 19 16:06:40.417 INFO [stderr]   |     ^^^^^^^^^^^
Dec 19 16:06:40.417 INFO [stderr] 
Dec 19 16:06:40.417 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 19 16:06:40.417 INFO [stderr]   --> src/problems/p37.rs:16:5
Dec 19 16:06:40.417 INFO [stderr]    |
Dec 19 16:06:40.417 INFO [stderr] 16 |         if(left_truncatable(p)) {
Dec 19 16:06:40.417 INFO [stderr]    |           ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 16:06:40.417 INFO [stderr]    |
Dec 19 16:06:40.417 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 19 16:06:40.417 INFO [stderr] 
Dec 19 16:06:40.417 INFO [stderr] warning: unused import: `utils::primes`
Dec 19 16:06:40.417 INFO [stderr]  --> src/problems/p40.rs:1:5
Dec 19 16:06:40.417 INFO [stderr]   |
Dec 19 16:06:40.417 INFO [stderr] 1 | use utils::primes;
Dec 19 16:06:40.417 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 19 16:06:40.417 INFO [stderr]   |
Dec 19 16:06:40.417 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 16:06:40.417 INFO [stderr] 
Dec 19 16:06:40.417 INFO [stderr] warning: unused import: `utils::primes`
Dec 19 16:06:40.417 INFO [stderr]  --> src/problems/p42.rs:1:5
Dec 19 16:06:40.417 INFO [stderr]   |
Dec 19 16:06:40.417 INFO [stderr] 1 | use utils::primes;
Dec 19 16:06:40.417 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 19 16:06:40.417 INFO [stderr] 
Dec 19 16:06:40.417 INFO [stderr] warning: unused import: `utils::vec`
Dec 19 16:06:40.417 INFO [stderr]  --> src/problems/p43.rs:1:5
Dec 19 16:06:40.417 INFO [stderr]   |
Dec 19 16:06:40.417 INFO [stderr] 1 | use utils::vec;
Dec 19 16:06:40.417 INFO [stderr]   |     ^^^^^^^^^^
Dec 19 16:06:40.417 INFO [stderr] 
Dec 19 16:06:40.417 INFO [stderr] warning: unused import: `std::collections::BTreeMap`
Dec 19 16:06:40.417 INFO [stderr]  --> src/problems/p615.rs:1:5
Dec 19 16:06:40.417 INFO [stderr]   |
Dec 19 16:06:40.417 INFO [stderr] 1 | use std::collections::BTreeMap;
Dec 19 16:06:40.417 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:06:40.417 INFO [stderr] 
Dec 19 16:06:40.417 INFO [stderr] warning: unused import: `std::cell::RefCell`
Dec 19 16:06:40.417 INFO [stderr]  --> src/problems/p615.rs:3:5
Dec 19 16:06:40.417 INFO [stderr]   |
Dec 19 16:06:40.417 INFO [stderr] 3 | use std::cell::RefCell;
Dec 19 16:06:40.417 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 19 16:06:40.417 INFO [stderr] 
Dec 19 16:06:40.417 INFO [stderr] warning: unused import: `std::rc::Rc`
Dec 19 16:06:40.417 INFO [stderr]  --> src/problems/p615.rs:4:5
Dec 19 16:06:40.417 INFO [stderr]   |
Dec 19 16:06:40.417 INFO [stderr] 4 | use std::rc::Rc;
Dec 19 16:06:40.417 INFO [stderr]   |     ^^^^^^^^^^^
Dec 19 16:06:40.417 INFO [stderr] 
Dec 19 16:06:40.761 INFO [stderr] warning: unused variable: `i`
Dec 19 16:06:40.761 INFO [stderr]   --> src/problems/p43.rs:14:9
Dec 19 16:06:40.761 INFO [stderr]    |
Dec 19 16:06:40.761 INFO [stderr] 14 |             Some(i) => {},
Dec 19 16:06:40.761 INFO [stderr]    |                  ^ help: consider using `_i` instead
Dec 19 16:06:40.761 INFO [stderr]    |
Dec 19 16:06:40.761 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 16:06:40.761 INFO [stderr] 
Dec 19 16:06:40.797 INFO [stderr] warning: unused variable: `i`
Dec 19 16:06:40.799 INFO [stderr]   --> src/problems/p43.rs:14:9
Dec 19 16:06:40.799 INFO [stderr]    |
Dec 19 16:06:40.799 INFO [stderr] 14 |             Some(i) => {},
Dec 19 16:06:40.799 INFO [stderr]    |                  ^ help: consider using `_i` instead
Dec 19 16:06:40.799 INFO [stderr]    |
Dec 19 16:06:40.799 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 16:06:40.799 INFO [stderr] 
Dec 19 16:06:40.860 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:06:40.860 INFO [stderr]  --> src/problems/p42.rs:6:6
Dec 19 16:06:40.860 INFO [stderr]   |
Dec 19 16:06:40.860 INFO [stderr] 6 |     let mut list : Vec<String> = strings::process_list(s);
Dec 19 16:06:40.860 INFO [stderr]   |         ----^^^^
Dec 19 16:06:40.860 INFO [stderr]   |         |
Dec 19 16:06:40.860 INFO [stderr]   |         help: remove this `mut`
Dec 19 16:06:40.860 INFO [stderr]   |
Dec 19 16:06:40.860 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 19 16:06:40.860 INFO [stderr] 
Dec 19 16:06:40.860 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:06:40.861 INFO [stderr]   --> src/problems/p43.rs:10:7
Dec 19 16:06:40.861 INFO [stderr]    |
Dec 19 16:06:40.861 INFO [stderr] 10 |         let mut sv = to_vec(seventeen);
Dec 19 16:06:40.861 INFO [stderr]    |             ----^^
Dec 19 16:06:40.861 INFO [stderr]    |             |
Dec 19 16:06:40.861 INFO [stderr]    |             help: remove this `mut`
Dec 19 16:06:40.861 INFO [stderr] 
Dec 19 16:06:40.880 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:06:40.880 INFO [stderr]   --> src/utils/math.rs:97:25
Dec 19 16:06:40.880 INFO [stderr]    |
Dec 19 16:06:40.880 INFO [stderr] 97 | pub fn next_permutation(mut input: &Vec<i64>) -> Vec<i64> {
Dec 19 16:06:40.880 INFO [stderr]    |                         ----^^^^^
Dec 19 16:06:40.880 INFO [stderr]    |                         |
Dec 19 16:06:40.880 INFO [stderr]    |                         help: remove this `mut`
Dec 19 16:06:40.880 INFO [stderr] 
Dec 19 16:06:40.881 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:06:40.881 INFO [stderr]    --> src/utils/math.rs:161:25
Dec 19 16:06:40.881 INFO [stderr]     |
Dec 19 16:06:40.881 INFO [stderr] 161 | pub fn prev_permutation(mut input: &Vec<i64>) -> Vec<i64> {
Dec 19 16:06:40.881 INFO [stderr]     |                         ----^^^^^
Dec 19 16:06:40.881 INFO [stderr]     |                         |
Dec 19 16:06:40.881 INFO [stderr]     |                         help: remove this `mut`
Dec 19 16:06:40.881 INFO [stderr] 
Dec 19 16:06:40.890 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:06:40.890 INFO [stderr]  --> src/problems/p42.rs:6:6
Dec 19 16:06:40.890 INFO [stderr]   |
Dec 19 16:06:40.890 INFO [stderr] 6 |     let mut list : Vec<String> = strings::process_list(s);
Dec 19 16:06:40.890 INFO [stderr]   |         ----^^^^
Dec 19 16:06:40.890 INFO [stderr]   |         |
Dec 19 16:06:40.890 INFO [stderr]   |         help: remove this `mut`
Dec 19 16:06:40.890 INFO [stderr]   |
Dec 19 16:06:40.890 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 19 16:06:40.890 INFO [stderr] 
Dec 19 16:06:40.897 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:06:40.897 INFO [stderr]   --> src/problems/p43.rs:10:7
Dec 19 16:06:40.897 INFO [stderr]    |
Dec 19 16:06:40.897 INFO [stderr] 10 |         let mut sv = to_vec(seventeen);
Dec 19 16:06:40.897 INFO [stderr]    |             ----^^
Dec 19 16:06:40.897 INFO [stderr]    |             |
Dec 19 16:06:40.897 INFO [stderr]    |             help: remove this `mut`
Dec 19 16:06:40.897 INFO [stderr] 
Dec 19 16:06:40.903 INFO [stderr] warning: function is never used: `right_truncatable`
Dec 19 16:06:40.903 INFO [stderr]   --> src/problems/p37.rs:29:1
Dec 19 16:06:40.903 INFO [stderr]    |
Dec 19 16:06:40.903 INFO [stderr] 29 | pub fn right_truncatable(p: i64) -> bool {
Dec 19 16:06:40.903 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:06:40.903 INFO [stderr]    |
Dec 19 16:06:40.904 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 16:06:40.904 INFO [stderr] 
Dec 19 16:06:40.904 INFO [stderr] warning: function is never used: `next_permutation`
Dec 19 16:06:40.904 INFO [stderr]   --> src/utils/math.rs:97:1
Dec 19 16:06:40.904 INFO [stderr]    |
Dec 19 16:06:40.904 INFO [stderr] 97 | pub fn next_permutation(mut input: &Vec<i64>) -> Vec<i64> {
Dec 19 16:06:40.904 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:06:40.904 INFO [stderr] 
Dec 19 16:06:40.904 INFO [stderr] warning: function is never used: `list_primes`
Dec 19 16:06:40.904 INFO [stderr]   --> src/utils/primes.rs:16:1
Dec 19 16:06:40.904 INFO [stderr]    |
Dec 19 16:06:40.904 INFO [stderr] 16 | pub fn list_primes(max: i64) -> Vec<i64> {
Dec 19 16:06:40.904 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:06:40.904 INFO [stderr] 
Dec 19 16:06:40.904 INFO [stderr] warning: function is never used: `char_as_val`
Dec 19 16:06:40.904 INFO [stderr]   --> src/utils/strings.rs:32:1
Dec 19 16:06:40.904 INFO [stderr]    |
Dec 19 16:06:40.904 INFO [stderr] 32 | pub fn char_as_val(c: char) -> i64 {
Dec 19 16:06:40.904 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:06:40.904 INFO [stderr] 
Dec 19 16:06:40.904 INFO [stderr] warning: function is never used: `subvec`
Dec 19 16:06:40.904 INFO [stderr]  --> src/utils/vec.rs:3:1
Dec 19 16:06:40.904 INFO [stderr]   |
Dec 19 16:06:40.904 INFO [stderr] 3 | pub fn subvec<T: Copy>(v: &Vec<T>, a: usize, b: usize) -> Vec<T> {
Dec 19 16:06:40.904 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:06:40.904 INFO [stderr] 
Dec 19 16:06:40.922 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:06:40.922 INFO [stderr]   --> src/utils/math.rs:97:25
Dec 19 16:06:40.922 INFO [stderr]    |
Dec 19 16:06:40.922 INFO [stderr] 97 | pub fn next_permutation(mut input: &Vec<i64>) -> Vec<i64> {
Dec 19 16:06:40.922 INFO [stderr]    |                         ----^^^^^
Dec 19 16:06:40.922 INFO [stderr]    |                         |
Dec 19 16:06:40.922 INFO [stderr]    |                         help: remove this `mut`
Dec 19 16:06:40.922 INFO [stderr] 
Dec 19 16:06:40.925 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:06:40.925 INFO [stderr]    --> src/utils/math.rs:161:25
Dec 19 16:06:40.925 INFO [stderr]     |
Dec 19 16:06:40.925 INFO [stderr] 161 | pub fn prev_permutation(mut input: &Vec<i64>) -> Vec<i64> {
Dec 19 16:06:40.925 INFO [stderr]     |                         ----^^^^^
Dec 19 16:06:40.925 INFO [stderr]     |                         |
Dec 19 16:06:40.925 INFO [stderr]     |                         help: remove this `mut`
Dec 19 16:06:40.925 INFO [stderr] 
Dec 19 16:06:40.949 INFO [stderr] warning: function is never used: `right_truncatable`
Dec 19 16:06:40.949 INFO [stderr]   --> src/problems/p37.rs:29:1
Dec 19 16:06:40.949 INFO [stderr]    |
Dec 19 16:06:40.949 INFO [stderr] 29 | pub fn right_truncatable(p: i64) -> bool {
Dec 19 16:06:40.949 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:06:40.949 INFO [stderr]    |
Dec 19 16:06:40.949 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 16:06:40.949 INFO [stderr] 
Dec 19 16:06:40.949 INFO [stderr] warning: function is never used: `next_permutation`
Dec 19 16:06:40.949 INFO [stderr]   --> src/utils/math.rs:97:1
Dec 19 16:06:40.949 INFO [stderr]    |
Dec 19 16:06:40.949 INFO [stderr] 97 | pub fn next_permutation(mut input: &Vec<i64>) -> Vec<i64> {
Dec 19 16:06:40.949 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:06:40.952 INFO [stderr] 
Dec 19 16:06:40.952 INFO [stderr] warning: function is never used: `list_primes`
Dec 19 16:06:40.952 INFO [stderr]   --> src/utils/primes.rs:16:1
Dec 19 16:06:40.952 INFO [stderr]    |
Dec 19 16:06:40.952 INFO [stderr] 16 | pub fn list_primes(max: i64) -> Vec<i64> {
Dec 19 16:06:40.952 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:06:40.952 INFO [stderr] 
Dec 19 16:06:40.952 INFO [stderr] warning: function is never used: `char_as_val`
Dec 19 16:06:40.952 INFO [stderr]   --> src/utils/strings.rs:32:1
Dec 19 16:06:40.952 INFO [stderr]    |
Dec 19 16:06:40.952 INFO [stderr] 32 | pub fn char_as_val(c: char) -> i64 {
Dec 19 16:06:40.952 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:06:40.952 INFO [stderr] 
Dec 19 16:06:40.952 INFO [stderr] warning: function is never used: `subvec`
Dec 19 16:06:40.952 INFO [stderr]  --> src/utils/vec.rs:3:1
Dec 19 16:06:40.952 INFO [stderr]   |
Dec 19 16:06:40.952 INFO [stderr] 3 | pub fn subvec<T: Copy>(v: &Vec<T>, a: usize, b: usize) -> Vec<T> {
Dec 19 16:06:40.952 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:06:40.952 INFO [stderr] 
Dec 19 16:06:40.982 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.05s
Dec 19 16:06:41.318 INFO running `"docker" "inspect" "83880dbacd8ce200eb016d1981c23924d8c3d186d2d0f4a89f63d1662d8e8369"`
Dec 19 16:06:41.458 INFO running `"docker" "rm" "-f" "83880dbacd8ce200eb016d1981c23924d8c3d186d2d0f4a89f63d1662d8e8369"`
Dec 19 16:06:41.562 INFO [stdout] 83880dbacd8ce200eb016d1981c23924d8c3d186d2d0f4a89f63d1662d8e8369