[INFO] cloning repository https://github.com/kristopherbullinger/tokenizers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kristopherbullinger/tokenizers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkristopherbullinger%2Ftokenizers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkristopherbullinger%2Ftokenizers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f45806b149f71c5d757b45cfe8e211595e985b3c
[INFO] testing kristopherbullinger/tokenizers against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkristopherbullinger%2Ftokenizers" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kristopherbullinger/tokenizers on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kristopherbullinger/tokenizers
[INFO] finished tweaking git repo https://github.com/kristopherbullinger/tokenizers
[INFO] tweaked toml for git repo https://github.com/kristopherbullinger/tokenizers written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/kristopherbullinger/tokenizers already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46c669f8016d8b33fb4ac68e495a63c8318763ff4cffc37823bab0e444247cde
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "46c669f8016d8b33fb4ac68e495a63c8318763ff4cffc37823bab0e444247cde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46c669f8016d8b33fb4ac68e495a63c8318763ff4cffc37823bab0e444247cde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46c669f8016d8b33fb4ac68e495a63c8318763ff4cffc37823bab0e444247cde", kill_on_drop: false }`
[INFO] [stdout] 46c669f8016d8b33fb4ac68e495a63c8318763ff4cffc37823bab0e444247cde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85c4241427a2f61a591a4637d4dbbe88eac23e165db37c4ab07d7d6b66011c04
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "85c4241427a2f61a591a4637d4dbbe88eac23e165db37c4ab07d7d6b66011c04", kill_on_drop: false }`
[INFO] [stderr]    Compiling gelato-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/linked_list.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let mut penultimate_node = self.get_node_mut(self.len - 2).unwrap(); //annoying variable name
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/linked_list.rs:200:13
[INFO] [stdout]     |
[INFO] [stdout] 200 |         let mut out = self.node?;
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inner_mut`
[INFO] [stdout]   --> src/linked_list.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn inner_mut(&mut self) -> &mut T {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop_node_back`
[INFO] [stdout]   --> src/linked_list.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn pop_node_back(&mut self) -> Option<Box<Node<T>>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop_back`
[INFO] [stdout]   --> src/linked_list.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn pop_back(&mut self) -> Option<T> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push_node_front`
[INFO] [stdout]   --> src/linked_list.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn push_node_front(&mut self, mut new_head: Box<Node<T>>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push_front`
[INFO] [stdout]   --> src/linked_list.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn push_front(&mut self, value: T) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert`
[INFO] [stdout]   --> src/linked_list.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn insert(&mut self, value: T, n: usize) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_empty`
[INFO] [stdout]    --> src/linked_list.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_node`
[INFO] [stdout]    --> src/linked_list.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn get_node(&self, n: usize) -> Option<&Box<Node<T>>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]    --> src/linked_list.rs:124:12
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn get(&self, n: usize) -> Option<&T> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_node_mut`
[INFO] [stdout]    --> src/linked_list.rs:128:8
[INFO] [stdout]     |
[INFO] [stdout] 128 |     fn get_node_mut(&mut self, n: usize) -> Option<&mut Box<Node<T>>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_mut`
[INFO] [stdout]    --> src/linked_list.rs:139:12
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn get_mut(&mut self, n: usize) -> Option<&mut T> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push_back`
[INFO] [stdout]    --> src/linked_list.rs:143:12
[INFO] [stdout]     |
[INFO] [stdout] 143 |     pub fn push_back(&mut self, value: T) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `head_node`
[INFO] [stdout]    --> src/linked_list.rs:153:8
[INFO] [stdout]     |
[INFO] [stdout] 153 |     fn head_node(&self) -> Option<&Box<Node<T>>> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `head`
[INFO] [stdout]    --> src/linked_list.rs:157:12
[INFO] [stdout]     |
[INFO] [stdout] 157 |     pub fn head(&self) -> Option<&T> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `tail_node`
[INFO] [stdout]    --> src/linked_list.rs:161:8
[INFO] [stdout]     |
[INFO] [stdout] 161 |     fn tail_node(&self) -> Option<&Box<Node<T>>> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `tail`
[INFO] [stdout]    --> src/linked_list.rs:165:12
[INFO] [stdout]     |
[INFO] [stdout] 165 |     pub fn tail(&self) -> Option<&T> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_tail_node_mut`
[INFO] [stdout]    --> src/linked_list.rs:169:8
[INFO] [stdout]     |
[INFO] [stdout] 169 |     fn get_tail_node_mut(&mut self) -> Option<&mut Box<Node<T>>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `tail_mut`
[INFO] [stdout]    --> src/linked_list.rs:173:12
[INFO] [stdout]     |
[INFO] [stdout] 173 |     pub fn tail_mut(&mut self) -> Option<&mut T> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reverse`
[INFO] [stdout]    --> src/linked_list.rs:181:12
[INFO] [stdout]     |
[INFO] [stdout] 181 |     pub fn reverse(&mut self) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `language`
[INFO] [stdout]   --> src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     language: Language,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `token_matchers`
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     token_matchers: Vec<Matcher>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `token_type`
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     token_type: TokenType,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `patterns`
[INFO] [stdout]   --> src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     patterns: Vec<Regex>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `source`
[INFO] [stdout]    --> src/lib.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 |     source: &'a str,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `language_config`
[INFO] [stdout]    --> src/lib.rs:118:5
[INFO] [stdout]     |
[INFO] [stdout] 118 |     language_config: LanguageConfig,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "85c4241427a2f61a591a4637d4dbbe88eac23e165db37c4ab07d7d6b66011c04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85c4241427a2f61a591a4637d4dbbe88eac23e165db37c4ab07d7d6b66011c04", kill_on_drop: false }`
[INFO] [stdout] 85c4241427a2f61a591a4637d4dbbe88eac23e165db37c4ab07d7d6b66011c04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 984242357eb81cd7989ea2dbda91b484c6371f368d4df8c98fcc337a0ec0e1b4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "984242357eb81cd7989ea2dbda91b484c6371f368d4df8c98fcc337a0ec0e1b4", kill_on_drop: false }`
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/linked_list.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let mut penultimate_node = self.get_node_mut(self.len - 2).unwrap(); //annoying variable name
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/linked_list.rs:200:13
[INFO] [stdout]     |
[INFO] [stdout] 200 |         let mut out = self.node?;
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inner_mut`
[INFO] [stdout]   --> src/linked_list.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn inner_mut(&mut self) -> &mut T {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop_node_back`
[INFO] [stdout]   --> src/linked_list.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn pop_node_back(&mut self) -> Option<Box<Node<T>>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop_back`
[INFO] [stdout]   --> src/linked_list.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn pop_back(&mut self) -> Option<T> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push_node_front`
[INFO] [stdout]   --> src/linked_list.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn push_node_front(&mut self, mut new_head: Box<Node<T>>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push_front`
[INFO] [stdout]   --> src/linked_list.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn push_front(&mut self, value: T) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert`
[INFO] [stdout]   --> src/linked_list.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn insert(&mut self, value: T, n: usize) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_empty`
[INFO] [stdout]    --> src/linked_list.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_node`
[INFO] [stdout]    --> src/linked_list.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn get_node(&self, n: usize) -> Option<&Box<Node<T>>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]    --> src/linked_list.rs:124:12
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn get(&self, n: usize) -> Option<&T> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_node_mut`
[INFO] [stdout]    --> src/linked_list.rs:128:8
[INFO] [stdout]     |
[INFO] [stdout] 128 |     fn get_node_mut(&mut self, n: usize) -> Option<&mut Box<Node<T>>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_mut`
[INFO] [stdout]    --> src/linked_list.rs:139:12
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn get_mut(&mut self, n: usize) -> Option<&mut T> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push_back`
[INFO] [stdout]    --> src/linked_list.rs:143:12
[INFO] [stdout]     |
[INFO] [stdout] 143 |     pub fn push_back(&mut self, value: T) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `head_node`
[INFO] [stdout]    --> src/linked_list.rs:153:8
[INFO] [stdout]     |
[INFO] [stdout] 153 |     fn head_node(&self) -> Option<&Box<Node<T>>> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `head`
[INFO] [stdout]    --> src/linked_list.rs:157:12
[INFO] [stdout]     |
[INFO] [stdout] 157 |     pub fn head(&self) -> Option<&T> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `tail_node`
[INFO] [stdout]    --> src/linked_list.rs:161:8
[INFO] [stdout]     |
[INFO] [stdout] 161 |     fn tail_node(&self) -> Option<&Box<Node<T>>> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `tail`
[INFO] [stdout]    --> src/linked_list.rs:165:12
[INFO] [stdout]     |
[INFO] [stdout] 165 |     pub fn tail(&self) -> Option<&T> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_tail_node_mut`
[INFO] [stdout]    --> src/linked_list.rs:169:8
[INFO] [stdout]     |
[INFO] [stdout] 169 |     fn get_tail_node_mut(&mut self) -> Option<&mut Box<Node<T>>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `tail_mut`
[INFO] [stdout]    --> src/linked_list.rs:173:12
[INFO] [stdout]     |
[INFO] [stdout] 173 |     pub fn tail_mut(&mut self) -> Option<&mut T> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reverse`
[INFO] [stdout]    --> src/linked_list.rs:181:12
[INFO] [stdout]     |
[INFO] [stdout] 181 |     pub fn reverse(&mut self) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `language`
[INFO] [stdout]   --> src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     language: Language,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `token_matchers`
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     token_matchers: Vec<Matcher>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `token_type`
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     token_type: TokenType,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `patterns`
[INFO] [stdout]   --> src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     patterns: Vec<Regex>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `source`
[INFO] [stdout]    --> src/lib.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 |     source: &'a str,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `language_config`
[INFO] [stdout]    --> src/lib.rs:118:5
[INFO] [stdout]     |
[INFO] [stdout] 118 |     language_config: LanguageConfig,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling gelato-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/linked_list.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let mut penultimate_node = self.get_node_mut(self.len - 2).unwrap(); //annoying variable name
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/linked_list.rs:200:13
[INFO] [stdout]     |
[INFO] [stdout] 200 |         let mut out = self.node?;
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inner_mut`
[INFO] [stdout]   --> src/linked_list.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn inner_mut(&mut self) -> &mut T {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_mut`
[INFO] [stdout]    --> src/linked_list.rs:139:12
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn get_mut(&mut self, n: usize) -> Option<&mut T> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_tail_node_mut`
[INFO] [stdout]    --> src/linked_list.rs:169:8
[INFO] [stdout]     |
[INFO] [stdout] 169 |     fn get_tail_node_mut(&mut self) -> Option<&mut Box<Node<T>>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `tail_mut`
[INFO] [stdout]    --> src/linked_list.rs:173:12
[INFO] [stdout]     |
[INFO] [stdout] 173 |     pub fn tail_mut(&mut self) -> Option<&mut T> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `language`
[INFO] [stdout]   --> src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     language: Language,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `token_matchers`
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     token_matchers: Vec<Matcher>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `token_type`
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     token_type: TokenType,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `patterns`
[INFO] [stdout]   --> src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     patterns: Vec<Regex>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `source`
[INFO] [stdout]    --> src/lib.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 |     source: &'a str,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `language_config`
[INFO] [stdout]    --> src/lib.rs:118:5
[INFO] [stdout]     |
[INFO] [stdout] 118 |     language_config: LanguageConfig,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.27s
[INFO] running `Command { std: "docker" "inspect" "984242357eb81cd7989ea2dbda91b484c6371f368d4df8c98fcc337a0ec0e1b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "984242357eb81cd7989ea2dbda91b484c6371f368d4df8c98fcc337a0ec0e1b4", kill_on_drop: false }`
[INFO] [stdout] 984242357eb81cd7989ea2dbda91b484c6371f368d4df8c98fcc337a0ec0e1b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a0661079830828f31d25592948d14ec99e3c214a76efeb895136b1a9cbbbea4b
[INFO] running `Command { std: "docker" "start" "-a" "a0661079830828f31d25592948d14ec99e3c214a76efeb895136b1a9cbbbea4b", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/linked_list.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |         let mut penultimate_node = self.get_node_mut(self.len - 2).unwrap(); //annoying variable name
[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/linked_list.rs:200:13
[INFO] [stderr]     |
[INFO] [stderr] 200 |         let mut out = self.node?;
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inner_mut`
[INFO] [stderr]   --> src/linked_list.rs:29:8
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn inner_mut(&mut self) -> &mut T {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `pop_node_back`
[INFO] [stderr]   --> src/linked_list.rs:53:8
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn pop_node_back(&mut self) -> Option<Box<Node<T>>> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `pop_back`
[INFO] [stderr]   --> src/linked_list.rs:62:12
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn pop_back(&mut self) -> Option<T> {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `push_node_front`
[INFO] [stderr]   --> src/linked_list.rs:66:8
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn push_node_front(&mut self, mut new_head: Box<Node<T>>) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `push_front`
[INFO] [stderr]   --> src/linked_list.rs:73:12
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub fn push_front(&mut self, value: T) {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `insert`
[INFO] [stderr]   --> src/linked_list.rs:83:12
[INFO] [stderr]    |
[INFO] [stderr] 83 |     pub fn insert(&mut self, value: T, n: usize) {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_empty`
[INFO] [stderr]    --> src/linked_list.rs:103:12
[INFO] [stderr]     |
[INFO] [stderr] 103 |     pub fn is_empty(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_node`
[INFO] [stderr]    --> src/linked_list.rs:113:8
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn get_node(&self, n: usize) -> Option<&Box<Node<T>>> {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get`
[INFO] [stderr]    --> src/linked_list.rs:124:12
[INFO] [stderr]     |
[INFO] [stderr] 124 |     pub fn get(&self, n: usize) -> Option<&T> {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_node_mut`
[INFO] [stderr]    --> src/linked_list.rs:128:8
[INFO] [stderr]     |
[INFO] [stderr] 128 |     fn get_node_mut(&mut self, n: usize) -> Option<&mut Box<Node<T>>> {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_mut`
[INFO] [stderr]    --> src/linked_list.rs:139:12
[INFO] [stderr]     |
[INFO] [stderr] 139 |     pub fn get_mut(&mut self, n: usize) -> Option<&mut T> {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `push_back`
[INFO] [stderr]    --> src/linked_list.rs:143:12
[INFO] [stderr]     |
[INFO] [stderr] 143 |     pub fn push_back(&mut self, value: T) {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `head_node`
[INFO] [stderr]    --> src/linked_list.rs:153:8
[INFO] [stderr]     |
[INFO] [stderr] 153 |     fn head_node(&self) -> Option<&Box<Node<T>>> {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `head`
[INFO] [stderr]    --> src/linked_list.rs:157:12
[INFO] [stderr]     |
[INFO] [stderr] 157 |     pub fn head(&self) -> Option<&T> {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `tail_node`
[INFO] [stderr]    --> src/linked_list.rs:161:8
[INFO] [stderr]     |
[INFO] [stderr] 161 |     fn tail_node(&self) -> Option<&Box<Node<T>>> {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `tail`
[INFO] [stderr]    --> src/linked_list.rs:165:12
[INFO] [stderr]     |
[INFO] [stderr] 165 |     pub fn tail(&self) -> Option<&T> {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_tail_node_mut`
[INFO] [stderr]    --> src/linked_list.rs:169:8
[INFO] [stderr]     |
[INFO] [stderr] 169 |     fn get_tail_node_mut(&mut self) -> Option<&mut Box<Node<T>>> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `tail_mut`
[INFO] [stderr]    --> src/linked_list.rs:173:12
[INFO] [stderr]     |
[INFO] [stderr] 173 |     pub fn tail_mut(&mut self) -> Option<&mut T> {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `reverse`
[INFO] [stderr]    --> src/linked_list.rs:181:12
[INFO] [stderr]     |
[INFO] [stderr] 181 |     pub fn reverse(&mut self) {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `language`
[INFO] [stderr]   --> src/lib.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     language: Language,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `token_matchers`
[INFO] [stderr]   --> src/lib.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     token_matchers: Vec<Matcher>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `token_type`
[INFO] [stderr]   --> src/lib.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     token_type: TokenType,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `patterns`
[INFO] [stderr]   --> src/lib.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     patterns: Vec<Regex>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `source`
[INFO] [stderr]    --> src/lib.rs:117:5
[INFO] [stderr]     |
[INFO] [stderr] 117 |     source: &'a str,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `language_config`
[INFO] [stderr]    --> src/lib.rs:118:5
[INFO] [stderr]     |
[INFO] [stderr] 118 |     language_config: LanguageConfig,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 27 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/linked_list.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |         let mut penultimate_node = self.get_node_mut(self.len - 2).unwrap(); //annoying variable name
[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/linked_list.rs:200:13
[INFO] [stderr]     |
[INFO] [stderr] 200 |         let mut out = self.node?;
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inner_mut`
[INFO] [stderr]   --> src/linked_list.rs:29:8
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn inner_mut(&mut self) -> &mut T {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_mut`
[INFO] [stderr]    --> src/linked_list.rs:139:12
[INFO] [stderr]     |
[INFO] [stderr] 139 |     pub fn get_mut(&mut self, n: usize) -> Option<&mut T> {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_tail_node_mut`
[INFO] [stderr]    --> src/linked_list.rs:169:8
[INFO] [stderr]     |
[INFO] [stderr] 169 |     fn get_tail_node_mut(&mut self) -> Option<&mut Box<Node<T>>> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `tail_mut`
[INFO] [stderr]    --> src/linked_list.rs:173:12
[INFO] [stderr]     |
[INFO] [stderr] 173 |     pub fn tail_mut(&mut self) -> Option<&mut T> {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `language`
[INFO] [stderr]   --> src/lib.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     language: Language,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `token_matchers`
[INFO] [stderr]   --> src/lib.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     token_matchers: Vec<Matcher>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `token_type`
[INFO] [stderr]   --> src/lib.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     token_type: TokenType,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `patterns`
[INFO] [stderr]   --> src/lib.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     patterns: Vec<Regex>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `source`
[INFO] [stderr]    --> src/lib.rs:117:5
[INFO] [stderr]     |
[INFO] [stderr] 117 |     source: &'a str,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `language_config`
[INFO] [stderr]    --> src/lib.rs:118:5
[INFO] [stderr]     |
[INFO] [stderr] 118 |     language_config: LanguageConfig,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 12 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/gelato_rs-2d1de2961f461edb)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test linked_list::tests::can_create_from_iter ... ok
[INFO] [stdout] test linked_list::tests::can_push_front ... ok
[INFO] [stdout] test linked_list::tests::can_insert_into_middle ... ok
[INFO] [stdout] test linked_list::tests::inserting_increments_length_by_one ... ok
[INFO] [stdout] test linked_list::tests::can_push_back ... ok
[INFO] [stdout] test linked_list::tests::can_into_iter ... ok
[INFO] [stdout] test linked_list::tests::similar_lists_compare_equal ... ok
[INFO] [stdout] test linked_list::tests::pop_front_and_back_decr_length_by_one ... ok
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] [stdout] test linked_list::tests::can_reverse ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- linked_list::tests::can_reverse stdout ----
[INFO] [stdout] thread 'linked_list::tests::can_reverse' panicked at 'assertion failed: `(left == right)`
[INFO] [stdout]   left: `LinkedList { head: Some(Node { value: 99, next: Some(Node { value: 98, next: Some(Node { value: 97, next: Some(Node { value: 96, next: Some(Node { value: 95, next: Some(Node { value: 94, next: Some(Node { value: 93, next: Some(Node { value: 92, next: Some(Node { value: 91, next: Some(Node { value: 90, next: Some(Node { value: 89, next: Some(Node { value: 88, next: Some(Node { value: 87, next: Some(Node { value: 86, next: Some(Node { value: 85, next: Some(Node { value: 84, next: Some(Node { value: 83, next: Some(Node { value: 82, next: Some(Node { value: 81, next: Some(Node { value: 80, next: Some(Node { value: 79, next: Some(Node { value: 78, next: Some(Node { value: 77, next: Some(Node { value: 76, next: Some(Node { value: 75, next: Some(Node { value: 74, next: Some(Node { value: 73, next: Some(Node { value: 72, next: Some(Node { value: 71, next: Some(Node { value: 70, next: Some(Node { value: 69, next: Some(Node { value: 68, next: Some(Node { value: 67, next: Some(Node { value: 66, next: Some(Node { value: 65, next: Some(Node { value: 64, next: Some(Node { value: 63, next: Some(Node { value: 62, next: Some(Node { value: 61, next: Some(Node { value: 60, next: Some(Node { value: 59, next: Some(Node { value: 58, next: Some(Node { value: 57, next: Some(Node { value: 56, next: Some(Node { value: 55, next: Some(Node { value: 54, next: Some(Node { value: 53, next: Some(Node { value: 52, next: Some(Node { value: 51, next: Some(Node { value: 50, next: Some(Node { value: 49, next: Some(Node { value: 48, next: Some(Node { value: 47, next: Some(Node { value: 46, next: Some(Node { value: 45, next: Some(Node { value: 44, next: Some(Node { value: 43, next: Some(Node { value: 42, next: Some(Node { value: 41, next: Some(Node { value: 40, next: Some(Node { value: 39, next: Some(Node { value: 38, next: Some(Node { value: 37, next: Some(Node { value: 36, next: Some(Node { value: 35, next: Some(Node { value: 34, next: Some(Node { value: 33, next: Some(Node { value: 32, next: Some(Node { value: 31, next: Some(Node { value: 30, next: Some(Node { value: 29, next: Some(Node { value: 28, next: Some(Node { value: 27, next: Some(Node { value: 26, next: Some(Node { value: 25, next: Some(Node { value: 24, next: Some(Node { value: 23, next: Some(Node { value: 22, next: Some(Node { value: 21, next: Some(Node { value: 20, next: Some(Node { value: 19, next: Some(Node { value: 18, next: Some(Node { value: 17, next: Some(Node { value: 16, next: Some(Node { value: 15, next: Some(Node { value: 14, next: Some(Node { value: 13, next: Some(Node { value: 12, next: Some(Node { value: 11, next: Some(Node { value: 10, next: Some(Node { value: 9, next: Some(Node { value: 8, next: Some(Node { value: 7, next: Some(Node { value: 6, next: Some(Node { value: 5, next: Some(Node { value: 4, next: Some(Node { value: 3, next: Some(Node { value: 2, next: Some(Node { value: 1, next: Some(Node { value: 0, next: None }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }), len: 100 }`,
[INFO] [stdout]  right: `LinkedList { head: Some(Node { value: 0, next: Some(Node { value: 1, next: Some(Node { value: 2, next: Some(Node { value: 3, next: Some(Node { value: 4, next: Some(Node { value: 5, next: Some(Node { value: 6, next: Some(Node { value: 7, next: Some(Node { value: 8, next: Some(Node { value: 9, next: Some(Node { value: 10, next: Some(Node { value: 11, next: Some(Node { value: 12, next: Some(Node { value: 13, next: Some(Node { value: 14, next: Some(Node { value: 15, next: Some(Node { value: 16, next: Some(Node { value: 17, next: Some(Node { value: 18, next: Some(Node { value: 19, next: Some(Node { value: 20, next: Some(Node { value: 21, next: Some(Node { value: 22, next: Some(Node { value: 23, next: Some(Node { value: 24, next: Some(Node { value: 25, next: Some(Node { value: 26, next: Some(Node { value: 27, next: Some(Node { value: 28, next: Some(Node { value: 29, next: Some(Node { value: 30, next: Some(Node { value: 31, next: Some(Node { value: 32, next: Some(Node { value: 33, next: Some(Node { value: 34, next: Some(Node { value: 35, next: Some(Node { value: 36, next: Some(Node { value: 37, next: Some(Node { value: 38, next: Some(Node { value: 39, next: Some(Node { value: 40, next: Some(Node { value: 41, next: Some(Node { value: 42, next: Some(Node { value: 43, next: Some(Node { value: 44, next: Some(Node { value: 45, next: Some(Node { value: 46, next: Some(Node { value: 47, next: Some(Node { value: 48, next: Some(Node { value: 49, next: Some(Node { value: 50, next: Some(Node { value: 51, next: Some(Node { value: 52, next: Some(Node { value: 53, next: Some(Node { value: 54, next: Some(Node { value: 55, next: Some(Node { value: 56, next: Some(Node { value: 57, next: Some(Node { value: 58, next: Some(Node { value: 59, next: Some(Node { value: 60, next: Some(Node { value: 61, next: Some(Node { value: 62, next: Some(Node { value: 63, next: Some(Node { value: 64, next: Some(Node { value: 65, next: Some(Node { value: 66, next: Some(Node { value: 67, next: Some(Node { value: 68, next: Some(Node { value: 69, next: Some(Node { value: 70, next: Some(Node { value: 71, next: Some(Node { value: 72, next: Some(Node { value: 73, next: Some(Node { value: 74, next: Some(Node { value: 75, next: Some(Node { value: 76, next: Some(Node { value: 77, next: Some(Node { value: 78, next: Some(Node { value: 79, next: Some(Node { value: 80, next: Some(Node { value: 81, next: Some(Node { value: 82, next: Some(Node { value: 83, next: Some(Node { value: 84, next: Some(Node { value: 85, next: Some(Node { value: 86, next: Some(Node { value: 87, next: Some(Node { value: 88, next: Some(Node { value: 89, next: Some(Node { value: 90, next: Some(Node { value: 91, next: Some(Node { value: 92, next: Some(Node { value: 93, next: Some(Node { value: 94, next: Some(Node { value: 95, next: Some(Node { value: 96, next: Some(Node { value: 97, next: Some(Node { value: 98, next: Some(Node { value: 99, next: None }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }) }), len: 100 }`', src/linked_list.rs:335:9
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55afccfb7300 - std::backtrace_rs::backtrace::libunwind::trace::h34055254b57d8e79
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x55afccfb7300 - std::backtrace_rs::backtrace::trace_unsynchronized::h8f1e3fbd9afff6ec
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55afccfb7300 - std::sys_common::backtrace::_print_fmt::h3a99a796b770c360
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x55afccfb7300 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h32d1f94a80615d18
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x55afccfd9afc - core::fmt::write::h306731c068f7162c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x55afccfb4225 - std::io::Write::write_fmt::h87f19b0a2cd190bc
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/io/mod.rs:1588:15
[INFO] [stdout]    6:     0x55afccfb946b - std::sys_common::backtrace::_print::h5abaa2601a852287
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x55afccfb946b - std::sys_common::backtrace::print::h8d81445442bb638f
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x55afccfb946b - std::panicking::default_hook::{{closure}}::hcfe804496a9fa747
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x55afccfb8f7c - std::panicking::default_hook::hbea8e3ccf2ba8901
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x55afccfb9b34 - std::panicking::rust_panic_with_hook::h7ee9e1a2d0f8975a
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x55afccfb9617 - std::panicking::begin_panic_handler::{{closure}}::h8ab3b4491718b2c7
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x55afccfb77fc - std::sys_common::backtrace::__rust_end_short_backtrace::hd489062ffa586a9f
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x55afccfb9579 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x55afccf59651 - core::panicking::panic_fmt::hca6330e3e14086b4
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x55afccfd8418 - core::panicking::assert_failed_inner::h33b45280069a80ed
[INFO] [stdout]   16:     0x55afccf6404a - core::panicking::assert_failed::h899c08c399a8201c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/panicking.rs:117:5
[INFO] [stdout]   17:     0x55afccf627d4 - gelato_rs::linked_list::tests::can_reverse::hca524aba8f52b442
[INFO] [stdout]                                at /opt/rustwide/workdir/src/linked_list.rs:335:9
[INFO] [stdout]   18:     0x55afccf6261a - gelato_rs::linked_list::tests::can_reverse::{{closure}}::h84e37a24bf1fa02d
[INFO] [stdout]                                at /opt/rustwide/workdir/src/linked_list.rs:328:5
[INFO] [stdout]   19:     0x55afccf5cc0e - core::ops::function::FnOnce::call_once::h61bc6099e06e32d9
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   20:     0x55afccf8c323 - core::ops::function::FnOnce::call_once::h152e7e439ff59e19
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   21:     0x55afccf8c323 - test::__rust_begin_short_backtrace::h0908f3b1fdbb72ab
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:577:5
[INFO] [stdout]   22:     0x55afccf8ade0 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf6d2a51e5587546c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   23:     0x55afccf8ade0 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8af660f3a89ef593
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:347:9
[INFO] [stdout]   24:     0x55afccf8ade0 - std::panicking::try::do_call::hd36aef60f84b6d36
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stdout]   25:     0x55afccf8ade0 - std::panicking::try::h9932b4480e69817c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stdout]   26:     0x55afccf8ade0 - std::panic::catch_unwind::h6aa177099cfff5f8
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stdout]   27:     0x55afccf8ade0 - test::run_test_in_process::h5884d6f2d99e20c3
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:600:18
[INFO] [stdout]   28:     0x55afccf8ade0 - test::run_test::run_test_inner::{{closure}}::h6fdc58c6d5f5b6e3
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:492:39
[INFO] [stdout]   29:     0x55afccf64492 - test::run_test::run_test_inner::{{closure}}::h408365d67a78ade8
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:519:37
[INFO] [stdout]   30:     0x55afccf64492 - std::sys_common::backtrace::__rust_begin_short_backtrace::hb560b77c4f701523
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   31:     0x55afccf68048 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hf2e7831dad93c597
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   32:     0x55afccf68048 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hd2e08783d8be4d02
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:347:9
[INFO] [stdout]   33:     0x55afccf68048 - std::panicking::try::do_call::h062597b7acfd6b82
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stdout]   34:     0x55afccf68048 - std::panicking::try::h0d7b79db04c14552
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stdout]   35:     0x55afccf68048 - std::panic::catch_unwind::hb01a0b5e7c8cd43b
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stdout]   36:     0x55afccf68048 - std::thread::Builder::spawn_unchecked::{{closure}}::h5bde48cc887e0d1e
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   37:     0x55afccf68048 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h745ea30807a29e55
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   38:     0x55afccfbe5f7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7ece6cfefaff1005
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   39:     0x55afccfbe5f7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hb8b48e55c21f193e
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   40:     0x55afccfbe5f7 - std::sys::unix::thread::Thread::new::thread_start::h8c7c4450dba62914
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   41:     0x7f6ee5836609 - start_thread
[INFO] [stdout]   42:     0x7f6ee5608293 - clone
[INFO] [stdout]   43:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     linked_list::tests::can_reverse
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 8 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a0661079830828f31d25592948d14ec99e3c214a76efeb895136b1a9cbbbea4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0661079830828f31d25592948d14ec99e3c214a76efeb895136b1a9cbbbea4b", kill_on_drop: false }`
[INFO] [stdout] a0661079830828f31d25592948d14ec99e3c214a76efeb895136b1a9cbbbea4b
