[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] checking kristopherbullinger/tokenizers against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkristopherbullinger%2Ftokenizers" "/workspace/builds/worker-36/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-36/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kristopherbullinger/tokenizers on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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-36/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 90e8bdff208db1afef60fb94929895485cf821002daffc951805a1b4bd0dcba2
[INFO] running `Command { std: "docker" "start" "-a" "90e8bdff208db1afef60fb94929895485cf821002daffc951805a1b4bd0dcba2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90e8bdff208db1afef60fb94929895485cf821002daffc951805a1b4bd0dcba2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90e8bdff208db1afef60fb94929895485cf821002daffc951805a1b4bd0dcba2", kill_on_drop: false }`
[INFO] [stdout] 90e8bdff208db1afef60fb94929895485cf821002daffc951805a1b4bd0dcba2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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=forbid" "-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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e266a8b37e3564ee34539624836f6294382b9dc6fd066c3980456a00bd222560
[INFO] running `Command { std: "docker" "start" "-a" "e266a8b37e3564ee34539624836f6294382b9dc6fd066c3980456a00bd222560", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking thread_local v1.1.0
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking 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: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: 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: 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: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.62s
[INFO] running `Command { std: "docker" "inspect" "e266a8b37e3564ee34539624836f6294382b9dc6fd066c3980456a00bd222560", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e266a8b37e3564ee34539624836f6294382b9dc6fd066c3980456a00bd222560", kill_on_drop: false }`
[INFO] [stdout] e266a8b37e3564ee34539624836f6294382b9dc6fd066c3980456a00bd222560