Dec 04 15:21:29.059 INFO checking lampij/HashTable against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 15:21:29.059 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 15:21:29.532 INFO [stdout] 8ef699e87b6926da1599efb3efdeef0aa03b2d68381070e0febd74f30b872bbb
Dec 04 15:21:29.535 INFO running `"docker" "start" "-a" "8ef699e87b6926da1599efb3efdeef0aa03b2d68381070e0febd74f30b872bbb"`
Dec 04 15:21:31.560 INFO [stderr] usermod: no changes
Dec 04 15:21:31.639 INFO [stderr]     Checking HashTable v0.1.0 (/source)
Dec 04 15:21:32.375 INFO [stderr] warning: variable does not need to be mutable
Dec 04 15:21:32.375 INFO [stderr]   --> src/hash_table.rs:24:17
Dec 04 15:21:32.376 INFO [stderr]    |
Dec 04 15:21:32.376 INFO [stderr] 24 | pub fn hash_fun(mut key: &str) -> usize {
Dec 04 15:21:32.376 INFO [stderr]    |                 ----^^^
Dec 04 15:21:32.377 INFO [stderr]    |                 |
Dec 04 15:21:32.377 INFO [stderr]    |                 help: remove this `mut`
Dec 04 15:21:32.377 INFO [stderr]    |
Dec 04 15:21:32.378 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 15:21:32.378 INFO [stderr] 
Dec 04 15:21:32.378 INFO [stderr] warning: variable does not need to be mutable
Dec 04 15:21:32.379 INFO [stderr]   --> src/hash_table.rs:26:6
Dec 04 15:21:32.379 INFO [stderr]    |
Dec 04 15:21:32.379 INFO [stderr] 26 |     let mut key_as_byte_array = key.as_bytes();
Dec 04 15:21:32.379 INFO [stderr]    |         ----^^^^^^^^^^^^^^^^^
Dec 04 15:21:32.380 INFO [stderr]    |         |
Dec 04 15:21:32.380 INFO [stderr]    |         help: remove this `mut`
Dec 04 15:21:32.380 INFO [stderr] 
Dec 04 15:21:32.380 INFO [stderr] warning: struct is never constructed: `HashTable`
Dec 04 15:21:32.380 INFO [stderr]  --> src/hash_table.rs:2:1
Dec 04 15:21:32.381 INFO [stderr]   |
Dec 04 15:21:32.381 INFO [stderr] 2 | pub struct HashTable {
Dec 04 15:21:32.381 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Dec 04 15:21:32.381 INFO [stderr]   |
Dec 04 15:21:32.382 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 04 15:21:32.382 INFO [stderr] 
Dec 04 15:21:32.382 INFO [stderr] warning: method is never used: `add`
Dec 04 15:21:32.382 INFO [stderr]  --> src/hash_table.rs:8:2
Dec 04 15:21:32.382 INFO [stderr]   |
Dec 04 15:21:32.383 INFO [stderr] 8 |     pub fn add(&mut self, key: &String, value: &String) {
Dec 04 15:21:32.383 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 15:21:32.383 INFO [stderr] 
Dec 04 15:21:32.383 INFO [stderr] warning: method is never used: `get`
Dec 04 15:21:32.383 INFO [stderr]   --> src/hash_table.rs:14:2
Dec 04 15:21:32.384 INFO [stderr]    |
Dec 04 15:21:32.384 INFO [stderr] 14 |     pub fn get(&self, key: &String) -> String {
Dec 04 15:21:32.384 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 15:21:32.384 INFO [stderr] 
Dec 04 15:21:32.384 INFO [stderr] warning: method is never used: `new`
Dec 04 15:21:32.385 INFO [stderr]   --> src/hash_table.rs:18:2
Dec 04 15:21:32.385 INFO [stderr]    |
Dec 04 15:21:32.385 INFO [stderr] 18 |     pub fn new() -> HashTable {
Dec 04 15:21:32.385 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 15:21:32.385 INFO [stderr] 
Dec 04 15:21:32.385 INFO [stderr] warning: function is never used: `hash_fun`
Dec 04 15:21:32.386 INFO [stderr]   --> src/hash_table.rs:24:1
Dec 04 15:21:32.386 INFO [stderr]    |
Dec 04 15:21:32.386 INFO [stderr] 24 | pub fn hash_fun(mut key: &str) -> usize {
Dec 04 15:21:32.386 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 15:21:32.386 INFO [stderr] 
Dec 04 15:21:32.386 INFO [stderr] warning: crate `HashTable` should have a snake case name such as `hash_table`
Dec 04 15:21:32.386 INFO [stderr]   |
Dec 04 15:21:32.386 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 04 15:21:32.386 INFO [stderr] 
Dec 04 15:21:32.514 INFO [stderr] warning: variable does not need to be mutable
Dec 04 15:21:32.514 INFO [stderr]   --> src/hash_table.rs:24:17
Dec 04 15:21:32.514 INFO [stderr]    |
Dec 04 15:21:32.514 INFO [stderr] 24 | pub fn hash_fun(mut key: &str) -> usize {
Dec 04 15:21:32.514 INFO [stderr]    |                 ----^^^
Dec 04 15:21:32.514 INFO [stderr]    |                 |
Dec 04 15:21:32.514 INFO [stderr]    |                 help: remove this `mut`
Dec 04 15:21:32.514 INFO [stderr]    |
Dec 04 15:21:32.514 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 15:21:32.514 INFO [stderr] 
Dec 04 15:21:32.514 INFO [stderr] warning: variable does not need to be mutable
Dec 04 15:21:32.514 INFO [stderr]   --> src/hash_table.rs:26:6
Dec 04 15:21:32.514 INFO [stderr]    |
Dec 04 15:21:32.514 INFO [stderr] 26 |     let mut key_as_byte_array = key.as_bytes();
Dec 04 15:21:32.514 INFO [stderr]    |         ----^^^^^^^^^^^^^^^^^
Dec 04 15:21:32.514 INFO [stderr]    |         |
Dec 04 15:21:32.514 INFO [stderr]    |         help: remove this `mut`
Dec 04 15:21:32.514 INFO [stderr] 
Dec 04 15:21:32.514 INFO [stderr] warning: crate `HashTable` should have a snake case name such as `hash_table`
Dec 04 15:21:32.514 INFO [stderr]   |
Dec 04 15:21:32.514 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 04 15:21:32.514 INFO [stderr] 
Dec 04 15:21:32.546 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
Dec 04 15:21:32.563 INFO [stderr] su: No module specific data is present
Dec 04 15:21:33.979 INFO running `"docker" "inspect" "8ef699e87b6926da1599efb3efdeef0aa03b2d68381070e0febd74f30b872bbb"`
Dec 04 15:21:34.297 INFO running `"docker" "rm" "-f" "8ef699e87b6926da1599efb3efdeef0aa03b2d68381070e0febd74f30b872bbb"`
Dec 04 15:21:34.647 INFO [stdout] 8ef699e87b6926da1599efb3efdeef0aa03b2d68381070e0febd74f30b872bbb