[INFO] updating cached repository https://github.com/cronning9/math-lexer
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5c1f5be4f3b4ea8562e63c73b4e4627a8f6d8bcc
[INFO] testing cronning9/math-lexer against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcronning9%2Fmath-lexer" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cronning9/math-lexer on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/cronning9/math-lexer
[INFO] finished tweaking git repo https://github.com/cronning9/math-lexer
[INFO] tweaked toml for git repo https://github.com/cronning9/math-lexer written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/cronning9/math-lexer already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] e96ad4eb7b0bd434a4a7177cf438f0be932e7de4bdfb6ce817e38d4ff65a9a04
[INFO] running `"docker" "start" "-a" "e96ad4eb7b0bd434a4a7177cf438f0be932e7de4bdfb6ce817e38d4ff65a9a04"`
[INFO] [stderr]    Compiling math-lexer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::iter::Enumerate`
[INFO] [stderr]  --> src/lexer.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::iter::Enumerate;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::Chars`
[INFO] [stderr]  --> src/lexer.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::str::Chars;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/number_state_rules.rs:75:13
[INFO] [stderr]    |
[INFO] [stderr] 75 |             _ => panic!("An error has occurred."),
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `index` is never read
[INFO] [stderr]    --> src/lexer.rs:111:21
[INFO] [stderr]     |
[INFO] [stderr] 111 |                     index += 2;
[INFO] [stderr]     |                     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `index` is never read
[INFO] [stderr]    --> src/lexer.rs:113:21
[INFO] [stderr]     |
[INFO] [stderr] 113 |                     index += 1;
[INFO] [stderr]     |                     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lexer.rs:181:43
[INFO] [stderr]     |
[INFO] [stderr] 181 |     fn tokenize_arith_operator(&mut self, i: u64, c: char) -> Token {
[INFO] [stderr]     |                                           ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let mut input: String;
[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: struct is never constructed: `FSMResult`
[INFO] [stderr]   --> src/fsm/mod.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct FSMResult {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ArithOperators`
[INFO] [stderr]  --> src/tokens.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub enum ArithOperators {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ComparisonOperators`
[INFO] [stderr]   --> src/tokens.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub enum ComparisonOperators {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `TokenType`
[INFO] [stderr]   --> src/tokens.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub enum TokenType {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `"docker" "inspect" "e96ad4eb7b0bd434a4a7177cf438f0be932e7de4bdfb6ce817e38d4ff65a9a04"`
[INFO] running `"docker" "rm" "-f" "e96ad4eb7b0bd434a4a7177cf438f0be932e7de4bdfb6ce817e38d4ff65a9a04"`
[INFO] [stdout] e96ad4eb7b0bd434a4a7177cf438f0be932e7de4bdfb6ce817e38d4ff65a9a04
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1f6f0156f1182e0fb06c3b183645ebbb58c2e1f3e364ea356440bfcd06b0a608
[INFO] running `"docker" "start" "-a" "1f6f0156f1182e0fb06c3b183645ebbb58c2e1f3e364ea356440bfcd06b0a608"`
[INFO] [stderr]    Compiling math-lexer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::iter::Enumerate`
[INFO] [stderr]  --> src/lexer.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::iter::Enumerate;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::Chars`
[INFO] [stderr]  --> src/lexer.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::str::Chars;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/number_state_rules.rs:75:13
[INFO] [stderr]    |
[INFO] [stderr] 75 |             _ => panic!("An error has occurred."),
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `index` is never read
[INFO] [stderr]    --> src/lexer.rs:111:21
[INFO] [stderr]     |
[INFO] [stderr] 111 |                     index += 2;
[INFO] [stderr]     |                     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `index` is never read
[INFO] [stderr]    --> src/lexer.rs:113:21
[INFO] [stderr]     |
[INFO] [stderr] 113 |                     index += 1;
[INFO] [stderr]     |                     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lexer.rs:181:43
[INFO] [stderr]     |
[INFO] [stderr] 181 |     fn tokenize_arith_operator(&mut self, i: u64, c: char) -> Token {
[INFO] [stderr]     |                                           ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let mut input: String;
[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: struct is never constructed: `FSMResult`
[INFO] [stderr]   --> src/fsm/mod.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct FSMResult {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ArithOperators`
[INFO] [stderr]  --> src/tokens.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub enum ArithOperators {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ComparisonOperators`
[INFO] [stderr]   --> src/tokens.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub enum ComparisonOperators {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `TokenType`
[INFO] [stderr]   --> src/tokens.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub enum TokenType {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `"docker" "inspect" "1f6f0156f1182e0fb06c3b183645ebbb58c2e1f3e364ea356440bfcd06b0a608"`
[INFO] running `"docker" "rm" "-f" "1f6f0156f1182e0fb06c3b183645ebbb58c2e1f3e364ea356440bfcd06b0a608"`
[INFO] [stdout] 1f6f0156f1182e0fb06c3b183645ebbb58c2e1f3e364ea356440bfcd06b0a608
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 035c9038ff0b19a6e82476d6d8dda6629311909672914276a92d0302e7a40fa0
[INFO] running `"docker" "start" "-a" "035c9038ff0b19a6e82476d6d8dda6629311909672914276a92d0302e7a40fa0"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/math_lexer-78a6880127576d55
[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" "035c9038ff0b19a6e82476d6d8dda6629311909672914276a92d0302e7a40fa0"`
[INFO] running `"docker" "rm" "-f" "035c9038ff0b19a6e82476d6d8dda6629311909672914276a92d0302e7a40fa0"`
[INFO] [stdout] 035c9038ff0b19a6e82476d6d8dda6629311909672914276a92d0302e7a40fa0