Dec 11 11:39:42.438 INFO checking pontuslaestadius/goliath against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 11:39:42.438 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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"`
Dec 11 11:39:42.986 INFO [stdout] 30e8661f6d89dbf016d572c82e084fb277a551a710c001638ac13bb51e70b03a
Dec 11 11:39:42.988 INFO running `"docker" "start" "-a" "30e8661f6d89dbf016d572c82e084fb277a551a710c001638ac13bb51e70b03a"`
Dec 11 11:39:45.363 INFO [stderr] usermod: no changes
Dec 11 11:39:45.433 INFO [stderr]     Checking goliath v0.1.0 (/source)
Dec 11 11:39:45.718 INFO [stderr] warning: unused import: `std::fs::File`
Dec 11 11:39:45.718 INFO [stderr]  --> src/lib.rs:3:5
Dec 11 11:39:45.718 INFO [stderr]   |
Dec 11 11:39:45.718 INFO [stderr] 3 | use std::fs::File;
Dec 11 11:39:45.718 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 11 11:39:45.718 INFO [stderr]   |
Dec 11 11:39:45.718 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 11:39:45.718 INFO [stderr] 
Dec 11 11:39:45.812 INFO [stderr] warning: unused import: `std::io::prelude`
Dec 11 11:39:45.812 INFO [stderr]  --> src/lib.rs:2:5
Dec 11 11:39:45.812 INFO [stderr]   |
Dec 11 11:39:45.812 INFO [stderr] 2 | use std::io::prelude::*;
Dec 11 11:39:45.812 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 11 11:39:45.812 INFO [stderr] 
Dec 11 11:39:45.836 INFO [stderr] warning: variable does not need to be mutable
Dec 11 11:39:45.836 INFO [stderr]    --> src/lib.rs:147:13
Dec 11 11:39:45.836 INFO [stderr]     |
Dec 11 11:39:45.836 INFO [stderr] 147 |         let mut vec = index(&mut string);
Dec 11 11:39:45.836 INFO [stderr]     |             ----^^^
Dec 11 11:39:45.836 INFO [stderr]     |             |
Dec 11 11:39:45.836 INFO [stderr]     |             help: remove this `mut`
Dec 11 11:39:45.836 INFO [stderr]     |
Dec 11 11:39:45.836 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 11 11:39:45.836 INFO [stderr] 
Dec 11 11:39:45.836 INFO [stderr] warning: variable does not need to be mutable
Dec 11 11:39:45.836 INFO [stderr]    --> src/lib.rs:158:13
Dec 11 11:39:45.836 INFO [stderr]     |
Dec 11 11:39:45.836 INFO [stderr] 158 |         let mut vec = index(&mut string);
Dec 11 11:39:45.836 INFO [stderr]     |             ----^^^
Dec 11 11:39:45.836 INFO [stderr]     |             |
Dec 11 11:39:45.836 INFO [stderr]     |             help: remove this `mut`
Dec 11 11:39:45.836 INFO [stderr] 
Dec 11 11:39:45.923 INFO [stderr] warning: unused import: `std::fs::File`
Dec 11 11:39:45.923 INFO [stderr]  --> src/lib.rs:3:5
Dec 11 11:39:45.923 INFO [stderr]   |
Dec 11 11:39:45.923 INFO [stderr] 3 | use std::fs::File;
Dec 11 11:39:45.923 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 11 11:39:45.923 INFO [stderr]   |
Dec 11 11:39:45.923 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 11:39:45.923 INFO [stderr] 
Dec 11 11:39:45.963 INFO [stderr] warning: unused import: `std::io::prelude`
Dec 11 11:39:45.963 INFO [stderr]  --> src/lib.rs:2:5
Dec 11 11:39:45.963 INFO [stderr]   |
Dec 11 11:39:45.963 INFO [stderr] 2 | use std::io::prelude::*;
Dec 11 11:39:45.963 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 11 11:39:45.963 INFO [stderr] 
Dec 11 11:39:45.976 INFO [stderr] warning: function is never used: `index`
Dec 11 11:39:45.976 INFO [stderr]  --> src/lib.rs:6:1
Dec 11 11:39:45.976 INFO [stderr]   |
Dec 11 11:39:45.976 INFO [stderr] 6 | fn index<'a>(string: &'a mut String) -> Vec<Item<'a>> {
Dec 11 11:39:45.976 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:39:45.976 INFO [stderr]   |
Dec 11 11:39:45.977 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 11:39:45.977 INFO [stderr] 
Dec 11 11:39:45.977 INFO [stderr] warning: function is never used: `get_most_valued_sentence`
Dec 11 11:39:45.977 INFO [stderr]   --> src/lib.rs:41:1
Dec 11 11:39:45.977 INFO [stderr]    |
Dec 11 11:39:45.977 INFO [stderr] 41 | fn get_most_valued_sentence<'a>(string: &'a mut String, vec: Vec<Item>) -> &'a str {
Dec 11 11:39:45.977 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:39:45.977 INFO [stderr] 
Dec 11 11:39:45.977 INFO [stderr] warning: function is never used: `get_value`
Dec 11 11:39:45.977 INFO [stderr]   --> src/lib.rs:70:1
Dec 11 11:39:45.977 INFO [stderr]    |
Dec 11 11:39:45.977 INFO [stderr] 70 | fn get_value(string: &str) -> usize {
Dec 11 11:39:45.977 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:39:45.977 INFO [stderr] 
Dec 11 11:39:45.977 INFO [stderr] warning: method is never used: `increase_value`
Dec 11 11:39:45.977 INFO [stderr]   --> src/lib.rs:96:5
Dec 11 11:39:45.977 INFO [stderr]    |
Dec 11 11:39:45.977 INFO [stderr] 96 |     fn increase_value(&mut self) {
Dec 11 11:39:45.977 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:39:45.977 INFO [stderr] 
Dec 11 11:39:45.977 INFO [stderr] warning: method is never used: `get_value`
Dec 11 11:39:45.977 INFO [stderr]    --> src/lib.rs:100:5
Dec 11 11:39:45.977 INFO [stderr]     |
Dec 11 11:39:45.977 INFO [stderr] 100 |     fn get_value(&self) -> usize {
Dec 11 11:39:45.977 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:39:45.977 INFO [stderr] 
Dec 11 11:39:45.977 INFO [stderr] warning: method is never used: `get_key`
Dec 11 11:39:45.977 INFO [stderr]    --> src/lib.rs:104:5
Dec 11 11:39:45.977 INFO [stderr]     |
Dec 11 11:39:45.977 INFO [stderr] 104 |     fn get_key(&self) -> &str {
Dec 11 11:39:45.977 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:39:45.977 INFO [stderr] 
Dec 11 11:39:46.015 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
Dec 11 11:39:46.026 INFO [stderr] su: No module specific data is present
Dec 11 11:39:47.214 INFO running `"docker" "inspect" "30e8661f6d89dbf016d572c82e084fb277a551a710c001638ac13bb51e70b03a"`
Dec 11 11:39:47.554 INFO running `"docker" "rm" "-f" "30e8661f6d89dbf016d572c82e084fb277a551a710c001638ac13bb51e70b03a"`
Dec 11 11:39:47.916 INFO [stdout] 30e8661f6d89dbf016d572c82e084fb277a551a710c001638ac13bb51e70b03a