[INFO] cloning repository cultofmetatron/r_monkey
[INFO] running `"git" "clone" "--bare" "git://github.com/cultofmetatron/r_monkey.git" "work/cache/sources/gh/cultofmetatron/r_monkey"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/cultofmetatron/r_monkey'...
[INFO] running `"git" "clone" "work/cache/sources/gh/cultofmetatron/r_monkey" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/cultofmetatron/r_monkey"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/cultofmetatron/r_monkey'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cultofmetatron/r_monkey" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/cultofmetatron/r_monkey"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/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#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cultofmetatron/r_monkey on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-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-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/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-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/cultofmetatron/r_monkey/Cargo.toml
[INFO] crate cultofmetatron/r_monkey already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] testing cultofmetatron/r_monkey against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/cultofmetatron/r_monkey:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] 1309a2e246e9324e30da41ae835e8728f38cee0d34f4e8b6d628af2840dba989
[INFO] running `"docker" "start" "-a" "1309a2e246e9324e30da41ae835e8728f38cee0d34f4e8b6d628af2840dba989"`
[INFO] [stderr]    Compiling 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 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 1.18s
[INFO] running `"docker" "inspect" "1309a2e246e9324e30da41ae835e8728f38cee0d34f4e8b6d628af2840dba989"`
[INFO] running `"docker" "rm" "-f" "1309a2e246e9324e30da41ae835e8728f38cee0d34f4e8b6d628af2840dba989"`
[INFO] [stdout] 1309a2e246e9324e30da41ae835e8728f38cee0d34f4e8b6d628af2840dba989
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/cultofmetatron/r_monkey:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 672946737eb4834329f956400226b8f283aaea6cdbbaa3731dbfa91b333f2e4e
[INFO] running `"docker" "start" "-a" "672946737eb4834329f956400226b8f283aaea6cdbbaa3731dbfa91b333f2e4e"`
[INFO] [stderr]    Compiling 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 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 1.11s
[INFO] running `"docker" "inspect" "672946737eb4834329f956400226b8f283aaea6cdbbaa3731dbfa91b333f2e4e"`
[INFO] running `"docker" "rm" "-f" "672946737eb4834329f956400226b8f283aaea6cdbbaa3731dbfa91b333f2e4e"`
[INFO] [stdout] 672946737eb4834329f956400226b8f283aaea6cdbbaa3731dbfa91b333f2e4e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/cultofmetatron/r_monkey:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen"`
[INFO] [stdout] dd7cdef4fd81634940cbd8c4ab0b012695b32f954383dcd82eb9485c4eac2a73
[INFO] running `"docker" "start" "-a" "dd7cdef4fd81634940cbd8c4ab0b012695b32f954383dcd82eb9485c4eac2a73"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/r_monkey-7c7683c86d29df14
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test lexer::test_for_keywords ... ok
[INFO] [stdout] test lexer::test_next_token_with_basic_stuff ... ok
[INFO] [stdout] test lexer::test_special_tokens ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "dd7cdef4fd81634940cbd8c4ab0b012695b32f954383dcd82eb9485c4eac2a73"`
[INFO] running `"docker" "rm" "-f" "dd7cdef4fd81634940cbd8c4ab0b012695b32f954383dcd82eb9485c4eac2a73"`
[INFO] [stdout] dd7cdef4fd81634940cbd8c4ab0b012695b32f954383dcd82eb9485c4eac2a73