[INFO] updating cached repository cultofmetatron/r_monkey
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cultofmetatron/r_monkey
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cultofmetatron/r_monkey" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/cultofmetatron/r_monkey"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/cultofmetatron/r_monkey'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cultofmetatron/r_monkey" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/cultofmetatron/r_monkey"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/cultofmetatron/r_monkey'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ddf5036a36cc4315bb88914e2b7e59dcb32d6f5e
[INFO] sha for GitHub repo cultofmetatron/r_monkey: ddf5036a36cc4315bb88914e2b7e59dcb32d6f5e
[INFO] validating manifest of cultofmetatron/r_monkey on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cultofmetatron/r_monkey on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cultofmetatron/r_monkey
[INFO] finished frobbing cultofmetatron/r_monkey
[INFO] frobbed toml for cultofmetatron/r_monkey written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/cultofmetatron/r_monkey/Cargo.toml
[INFO] started frobbing cultofmetatron/r_monkey
[INFO] finished frobbing cultofmetatron/r_monkey
[INFO] frobbed toml for cultofmetatron/r_monkey written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/cultofmetatron/r_monkey/Cargo.toml
[INFO] crate cultofmetatron/r_monkey already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking cultofmetatron/r_monkey against try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-3/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/cultofmetatron/r_monkey:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1b9580897de0d453ffbe13b8bf7d1bd6475c391aad5acfecf12f5fe2e30709ee
[INFO] running `"docker" "start" "-a" "1b9580897de0d453ffbe13b8bf7d1bd6475c391aad5acfecf12f5fe2e30709ee"`
[INFO] [stderr]     Checking r_monkey v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/lexer.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/lexer.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `skip`
[INFO] [stderr]   --> src/lexer.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |     let mut skip : bool = false;
[INFO] [stderr]    |             ^^^^ help: consider prefixing with an underscore: `_skip`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]   --> src/lexer.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |     let mut index : usize = 0;
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_index`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lexer.rs:65:9
[INFO] [stderr]    |
[INFO] [stderr] 65 |     let mut skip : bool = false;
[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/lexer.rs:66:9
[INFO] [stderr]    |
[INFO] [stderr] 66 |     let mut index : usize = 0;
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Asterix`
[INFO] [stderr]   --> src/lexer.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     Asterix,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_complex_modifier`
[INFO] [stderr]    --> src/lexer.rs:144:3
[INFO] [stderr]     |
[INFO] [stderr] 144 |   fn is_complex_modifier(ch1: char) -> bool {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `NextChar`
[INFO] [stderr]    --> src/lexer.rs:154:3
[INFO] [stderr]     |
[INFO] [stderr] 154 |   enum NextChar {
[INFO] [stderr]     |   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `peek_ahead`
[INFO] [stderr]    --> src/lexer.rs:159:3
[INFO] [stderr]     |
[INFO] [stderr] 159 |   fn peek_ahead(index: usize, aStr: &Vec<char>) -> NextChar {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `charTerator` should have a snake case name
[INFO] [stderr]   --> src/lexer.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 |     let mut charTerator = input.chars().peekable();
[INFO] [stderr]    |             ^^^^^^^^^^^ help: convert the identifier to snake case: `char_terator`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `aStr` should have a snake case name
[INFO] [stderr]    --> src/lexer.rs:159:31
[INFO] [stderr]     |
[INFO] [stderr] 159 |   fn peek_ahead(index: usize, aStr: &Vec<char>) -> NextChar {
[INFO] [stderr]     |                               ^^^^ help: convert the identifier to snake case: `a_str`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `skip`
[INFO] [stderr]   --> src/lexer.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |     let mut skip : bool = false;
[INFO] [stderr]    |             ^^^^ help: consider prefixing with an underscore: `_skip`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]   --> src/lexer.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |     let mut index : usize = 0;
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_index`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lexer.rs:65:9
[INFO] [stderr]    |
[INFO] [stderr] 65 |     let mut skip : bool = false;
[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/lexer.rs:66:9
[INFO] [stderr]    |
[INFO] [stderr] 66 |     let mut index : usize = 0;
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Asterix`
[INFO] [stderr]   --> src/lexer.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     Asterix,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_complex_modifier`
[INFO] [stderr]    --> src/lexer.rs:144:3
[INFO] [stderr]     |
[INFO] [stderr] 144 |   fn is_complex_modifier(ch1: char) -> bool {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `NextChar`
[INFO] [stderr]    --> src/lexer.rs:154:3
[INFO] [stderr]     |
[INFO] [stderr] 154 |   enum NextChar {
[INFO] [stderr]     |   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `peek_ahead`
[INFO] [stderr]    --> src/lexer.rs:159:3
[INFO] [stderr]     |
[INFO] [stderr] 159 |   fn peek_ahead(index: usize, aStr: &Vec<char>) -> NextChar {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `charTerator` should have a snake case name
[INFO] [stderr]   --> src/lexer.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 |     let mut charTerator = input.chars().peekable();
[INFO] [stderr]    |             ^^^^^^^^^^^ help: convert the identifier to snake case: `char_terator`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `aStr` should have a snake case name
[INFO] [stderr]    --> src/lexer.rs:159:31
[INFO] [stderr]     |
[INFO] [stderr] 159 |   fn peek_ahead(index: usize, aStr: &Vec<char>) -> NextChar {
[INFO] [stderr]     |                               ^^^^ help: convert the identifier to snake case: `a_str`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `"docker" "inspect" "1b9580897de0d453ffbe13b8bf7d1bd6475c391aad5acfecf12f5fe2e30709ee"`
[INFO] running `"docker" "rm" "-f" "1b9580897de0d453ffbe13b8bf7d1bd6475c391aad5acfecf12f5fe2e30709ee"`
[INFO] [stdout] 1b9580897de0d453ffbe13b8bf7d1bd6475c391aad5acfecf12f5fe2e30709ee