[INFO] updating cached repository jackmead515/rust_jsm_encryption
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jackmead515/rust_jsm_encryption
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jackmead515/rust_jsm_encryption" "work/ex/beta-1.38-1/sources/1.37.0/gh/jackmead515/rust_jsm_encryption"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jackmead515/rust_jsm_encryption'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jackmead515/rust_jsm_encryption" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jackmead515/rust_jsm_encryption"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jackmead515/rust_jsm_encryption'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dc44dd310d02323659717f65baa18d5dccc4ecea
[INFO] sha for GitHub repo jackmead515/rust_jsm_encryption: dc44dd310d02323659717f65baa18d5dccc4ecea
[INFO] validating manifest of jackmead515/rust_jsm_encryption on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jackmead515/rust_jsm_encryption on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jackmead515/rust_jsm_encryption
[INFO] finished frobbing jackmead515/rust_jsm_encryption
[INFO] frobbed toml for jackmead515/rust_jsm_encryption written to work/ex/beta-1.38-1/sources/1.37.0/gh/jackmead515/rust_jsm_encryption/Cargo.toml
[INFO] started frobbing jackmead515/rust_jsm_encryption
[INFO] finished frobbing jackmead515/rust_jsm_encryption
[INFO] frobbed toml for jackmead515/rust_jsm_encryption written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jackmead515/rust_jsm_encryption/Cargo.toml
[INFO] crate jackmead515/rust_jsm_encryption already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing jackmead515/rust_jsm_encryption against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jackmead515/rust_jsm_encryption:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 773a964f32b53047df110d90dfa82105ea25ccf070a000b866b3ecc87ce5dab0
[INFO] running `"docker" "start" "-a" "773a964f32b53047df110d90dfa82105ea25ccf070a000b866b3ecc87ce5dab0"`
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rustjsm_encryption v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Duration`
[INFO] [stderr]  --> src/main.rs:5:17
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::time::{Duration, Instant};
[INFO] [stderr]   |                 ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread::sleep`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::thread::sleep;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufReader`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io::BufReader;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rulebook.rs:16:35
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub rules: HashMap<usize, Box<Encryptor>>
[INFO] [stderr]    |                                   ^^^^^^^^^ help: use `dyn`: `dyn Encryptor`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/rules/reverse.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::seq::SliceRandom`
[INFO] [stderr]  --> src/rules/reverse.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use rand::seq::SliceRandom;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::thread_rng`
[INFO] [stderr]  --> src/rules/reverse.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use rand::thread_rng;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufRead`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::io::BufRead;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/main.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |     let args: Vec<_> = env::args().collect();
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_args`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:64:9
[INFO] [stderr]    |
[INFO] [stderr] 64 |     for i in 0..10 {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:79:9
[INFO] [stderr]    |
[INFO] [stderr] 79 |     for i in 0..10 {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/rules/add.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |     for i in 0..self.options.1 {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/rules/add.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |     for i in 0..self.options.1 {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/rules/arrange.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |     for i in 0..amount {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/rules/arrange.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 |     for i in 0..amount {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let mut vec: Vec<String> = message[..].split("")
[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: method is never used: `get`
[INFO] [stderr]   --> src/alphabet.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 |   pub fn get(&self, character: &String) -> String {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `len`
[INFO] [stderr]   --> src/alphabet.rs:18:3
[INFO] [stderr]    |
[INFO] [stderr] 18 |   pub fn len(&self) -> usize {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `ruleBook` should have a snake case name
[INFO] [stderr]   --> src/main.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let ruleBook = RuleBook::generateRuleBook(&keys);
[INFO] [stderr]    |         ^^^^^^^^ help: convert the identifier to snake case: `rule_book`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `addRule` should have a snake case name
[INFO] [stderr]   --> src/main.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |     let addRule = ruleBook.rules.get(&add::id).unwrap();
[INFO] [stderr]    |         ^^^^^^^ help: convert the identifier to snake case: `add_rule`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `arrRule` should have a snake case name
[INFO] [stderr]   --> src/main.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 |     let arrRule = ruleBook.rules.get(&arrange::id).unwrap();
[INFO] [stderr]    |         ^^^^^^^ help: convert the identifier to snake case: `arr_rule`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `repRule` should have a snake case name
[INFO] [stderr]   --> src/main.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 |     let repRule = ruleBook.rules.get(&replace::id).unwrap();
[INFO] [stderr]    |         ^^^^^^^ help: convert the identifier to snake case: `rep_rule`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `revRule` should have a snake case name
[INFO] [stderr]   --> src/main.rs:57:9
[INFO] [stderr]    |
[INFO] [stderr] 57 |     let revRule = ruleBook.rules.get(&reverse::id).unwrap();
[INFO] [stderr]    |         ^^^^^^^ help: convert the identifier to snake case: `rev_rule`
[INFO] [stderr] 
[INFO] [stderr] warning: module `RuleBook` should have a snake case name
[INFO] [stderr]  --> src/rulebook.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub mod RuleBook {
[INFO] [stderr]   |         ^^^^^^^^ help: convert the identifier to snake case: `rule_book`
[INFO] [stderr] 
[INFO] [stderr] warning: function `generateRuleBook` should have a snake case name
[INFO] [stderr]   --> src/rulebook.rs:19:10
[INFO] [stderr]    |
[INFO] [stderr] 19 |   pub fn generateRuleBook(alphabet: &Alphabet) -> Book {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `generate_rule_book`
[INFO] [stderr] 
[INFO] [stderr] warning: function `loadFromFile` should have a snake case name
[INFO] [stderr]   --> src/alphabet.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn loadFromFile(file: &String) -> Alphabet {
[INFO] [stderr]    |        ^^^^^^^^^^^^ help: convert the identifier to snake case: `load_from_file`
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `id` should have an upper case name
[INFO] [stderr]  --> src/rules/add.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub static id: usize = 0;
[INFO] [stderr]   |            ^^ help: convert the identifier to upper case: `ID`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `id` should have an upper case name
[INFO] [stderr]  --> src/rules/arrange.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub static id: usize = 1;
[INFO] [stderr]   |            ^^ help: convert the identifier to upper case: `ID`
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `id` should have an upper case name
[INFO] [stderr]  --> src/rules/replace.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub static id: usize = 2;
[INFO] [stderr]   |            ^^ help: convert the identifier to upper case: `ID`
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `id` should have an upper case name
[INFO] [stderr]  --> src/rules/reverse.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub static id: usize = 3;
[INFO] [stderr]   |            ^^ help: convert the identifier to upper case: `ID`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.28s
[INFO] running `"docker" "inspect" "773a964f32b53047df110d90dfa82105ea25ccf070a000b866b3ecc87ce5dab0"`
[INFO] running `"docker" "rm" "-f" "773a964f32b53047df110d90dfa82105ea25ccf070a000b866b3ecc87ce5dab0"`
[INFO] [stdout] 773a964f32b53047df110d90dfa82105ea25ccf070a000b866b3ecc87ce5dab0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jackmead515/rust_jsm_encryption:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] dccced549ddcd40d7a4cebd497e930a9d23b5ffd849620a38dc40486517fe4ee
[INFO] running `"docker" "start" "-a" "dccced549ddcd40d7a4cebd497e930a9d23b5ffd849620a38dc40486517fe4ee"`
[INFO] [stderr]    Compiling rustjsm_encryption v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Duration`
[INFO] [stderr]  --> src/main.rs:5:17
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::time::{Duration, Instant};
[INFO] [stderr]   |                 ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread::sleep`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::thread::sleep;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufReader`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io::BufReader;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rulebook.rs:16:35
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub rules: HashMap<usize, Box<Encryptor>>
[INFO] [stderr]    |                                   ^^^^^^^^^ help: use `dyn`: `dyn Encryptor`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/rules/reverse.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::seq::SliceRandom`
[INFO] [stderr]  --> src/rules/reverse.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use rand::seq::SliceRandom;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::thread_rng`
[INFO] [stderr]  --> src/rules/reverse.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use rand::thread_rng;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufRead`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::io::BufRead;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/main.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |     let args: Vec<_> = env::args().collect();
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_args`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:64:9
[INFO] [stderr]    |
[INFO] [stderr] 64 |     for i in 0..10 {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:79:9
[INFO] [stderr]    |
[INFO] [stderr] 79 |     for i in 0..10 {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/rules/add.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |     for i in 0..self.options.1 {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/rules/add.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |     for i in 0..self.options.1 {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/rules/arrange.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |     for i in 0..amount {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/rules/arrange.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 |     for i in 0..amount {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let mut vec: Vec<String> = message[..].split("")
[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: method is never used: `get`
[INFO] [stderr]   --> src/alphabet.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 |   pub fn get(&self, character: &String) -> String {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `len`
[INFO] [stderr]   --> src/alphabet.rs:18:3
[INFO] [stderr]    |
[INFO] [stderr] 18 |   pub fn len(&self) -> usize {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `ruleBook` should have a snake case name
[INFO] [stderr]   --> src/main.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let ruleBook = RuleBook::generateRuleBook(&keys);
[INFO] [stderr]    |         ^^^^^^^^ help: convert the identifier to snake case: `rule_book`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `addRule` should have a snake case name
[INFO] [stderr]   --> src/main.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |     let addRule = ruleBook.rules.get(&add::id).unwrap();
[INFO] [stderr]    |         ^^^^^^^ help: convert the identifier to snake case: `add_rule`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `arrRule` should have a snake case name
[INFO] [stderr]   --> src/main.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 |     let arrRule = ruleBook.rules.get(&arrange::id).unwrap();
[INFO] [stderr]    |         ^^^^^^^ help: convert the identifier to snake case: `arr_rule`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `repRule` should have a snake case name
[INFO] [stderr]   --> src/main.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 |     let repRule = ruleBook.rules.get(&replace::id).unwrap();
[INFO] [stderr]    |         ^^^^^^^ help: convert the identifier to snake case: `rep_rule`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `revRule` should have a snake case name
[INFO] [stderr]   --> src/main.rs:57:9
[INFO] [stderr]    |
[INFO] [stderr] 57 |     let revRule = ruleBook.rules.get(&reverse::id).unwrap();
[INFO] [stderr]    |         ^^^^^^^ help: convert the identifier to snake case: `rev_rule`
[INFO] [stderr] 
[INFO] [stderr] warning: module `RuleBook` should have a snake case name
[INFO] [stderr]  --> src/rulebook.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub mod RuleBook {
[INFO] [stderr]   |         ^^^^^^^^ help: convert the identifier to snake case: `rule_book`
[INFO] [stderr] 
[INFO] [stderr] warning: function `generateRuleBook` should have a snake case name
[INFO] [stderr]   --> src/rulebook.rs:19:10
[INFO] [stderr]    |
[INFO] [stderr] 19 |   pub fn generateRuleBook(alphabet: &Alphabet) -> Book {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `generate_rule_book`
[INFO] [stderr] 
[INFO] [stderr] warning: function `loadFromFile` should have a snake case name
[INFO] [stderr]   --> src/alphabet.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn loadFromFile(file: &String) -> Alphabet {
[INFO] [stderr]    |        ^^^^^^^^^^^^ help: convert the identifier to snake case: `load_from_file`
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `id` should have an upper case name
[INFO] [stderr]  --> src/rules/add.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub static id: usize = 0;
[INFO] [stderr]   |            ^^ help: convert the identifier to upper case: `ID`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `id` should have an upper case name
[INFO] [stderr]  --> src/rules/arrange.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub static id: usize = 1;
[INFO] [stderr]   |            ^^ help: convert the identifier to upper case: `ID`
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `id` should have an upper case name
[INFO] [stderr]  --> src/rules/replace.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub static id: usize = 2;
[INFO] [stderr]   |            ^^ help: convert the identifier to upper case: `ID`
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `id` should have an upper case name
[INFO] [stderr]  --> src/rules/reverse.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub static id: usize = 3;
[INFO] [stderr]   |            ^^ help: convert the identifier to upper case: `ID`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `"docker" "inspect" "dccced549ddcd40d7a4cebd497e930a9d23b5ffd849620a38dc40486517fe4ee"`
[INFO] running `"docker" "rm" "-f" "dccced549ddcd40d7a4cebd497e930a9d23b5ffd849620a38dc40486517fe4ee"`
[INFO] [stdout] dccced549ddcd40d7a4cebd497e930a9d23b5ffd849620a38dc40486517fe4ee
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jackmead515/rust_jsm_encryption:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 33782edbca3cc1d02fda7e7cb99f8a373030ea4e4a4b36f2893015b34c788a48
[INFO] running `"docker" "start" "-a" "33782edbca3cc1d02fda7e7cb99f8a373030ea4e4a4b36f2893015b34c788a48"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rustjsm_encryption-a31657ac87b90d8c
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "33782edbca3cc1d02fda7e7cb99f8a373030ea4e4a4b36f2893015b34c788a48"`
[INFO] running `"docker" "rm" "-f" "33782edbca3cc1d02fda7e7cb99f8a373030ea4e4a4b36f2893015b34c788a48"`
[INFO] [stdout] 33782edbca3cc1d02fda7e7cb99f8a373030ea4e4a4b36f2893015b34c788a48