[INFO] cloning repository lampij/HashTable
[INFO] running `"git" "clone" "--bare" "git://github.com/lampij/HashTable.git" "work/cache/sources/gh/lampij/HashTable"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/lampij/HashTable'...
[INFO] running `"git" "clone" "work/cache/sources/gh/lampij/HashTable" "work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/lampij/HashTable"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/lampij/HashTable'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lampij/HashTable" "work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/lampij/HashTable"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/lampij/HashTable'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6dd4f350b75ac9d941cf815b203a9fc94bcdba9c
[INFO] sha for GitHub repo lampij/HashTable: 6dd4f350b75ac9d941cf815b203a9fc94bcdba9c
[INFO] validating manifest of lampij/HashTable on toolchain master#c0086b9e8972fef9fd4af24bae20d45021ed06c6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lampij/HashTable on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lampij/HashTable
[INFO] finished frobbing lampij/HashTable
[INFO] frobbed toml for lampij/HashTable written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/lampij/HashTable/Cargo.toml
[INFO] started frobbing lampij/HashTable
[INFO] finished frobbing lampij/HashTable
[INFO] frobbed toml for lampij/HashTable written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/lampij/HashTable/Cargo.toml
[INFO] crate lampij/HashTable has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking lampij/HashTable against try#290ac7b29f41ff9fa5232f9a1116ea71a3501063 for pr-58899
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58899/worker-5/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/lampij/HashTable:/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" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1a3d39fa1f89e95eca2e2d7fccc0bc60dea642a3d22bde2c97310ffbe411acf5
[INFO] running `"docker" "start" "-a" "1a3d39fa1f89e95eca2e2d7fccc0bc60dea642a3d22bde2c97310ffbe411acf5"`
[INFO] [stderr]     Checking HashTable v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/hash_table.rs:24:17
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn hash_fun(mut key: &str) -> usize {
[INFO] [stderr]    |                 ----^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/hash_table.rs:26:6
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let mut key_as_byte_array = key.as_bytes();
[INFO] [stderr]    |         ----^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `HashTable`
[INFO] [stderr]  --> src/hash_table.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub struct HashTable {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add`
[INFO] [stderr]  --> src/hash_table.rs:8:2
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn add(&mut self, key: &String, value: &String) {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get`
[INFO] [stderr]   --> src/hash_table.rs:14:2
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn get(&self, key: &String) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/hash_table.rs:18:2
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn new() -> HashTable {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hash_fun`
[INFO] [stderr]   --> src/hash_table.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn hash_fun(mut key: &str) -> usize {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `HashTable` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `hash_table`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/hash_table.rs:24:17
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn hash_fun(mut key: &str) -> usize {
[INFO] [stderr]    |                 ----^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/hash_table.rs:26:6
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let mut key_as_byte_array = key.as_bytes();
[INFO] [stderr]    |         ----^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: crate `HashTable` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `hash_table`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "1a3d39fa1f89e95eca2e2d7fccc0bc60dea642a3d22bde2c97310ffbe411acf5"`
[INFO] running `"docker" "rm" "-f" "1a3d39fa1f89e95eca2e2d7fccc0bc60dea642a3d22bde2c97310ffbe411acf5"`
[INFO] [stdout] 1a3d39fa1f89e95eca2e2d7fccc0bc60dea642a3d22bde2c97310ffbe411acf5