[INFO] cloning repository https://github.com/renorram/ll_parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/renorram/ll_parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frenorram%2Fll_parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frenorram%2Fll_parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ee2ee3d4ee36dafc1c8b3e81263855ccbcc26dd4
[INFO] checking renorram/ll_parser against try#b98202ad067d72e45cec8be3d5c15d86ef0fd086 for pr-155193
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frenorram%2Fll_parser" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/renorram/ll_parser
[INFO] finished tweaking git repo https://github.com/renorram/ll_parser
[INFO] tweaked toml for git repo https://github.com/renorram/ll_parser written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/renorram/ll_parser on toolchain b98202ad067d72e45cec8be3d5c15d86ef0fd086
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b98202ad067d72e45cec8be3d5c15d86ef0fd086" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/renorram/ll_parser already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b98202ad067d72e45cec8be3d5c15d86ef0fd086" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b98202ad067d72e45cec8be3d5c15d86ef0fd086" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9003cbe9ec6450f07878004be5f06e42d54c8c8381bab2c75991913d2c75496d
[INFO] running `Command { std: "docker" "start" "-a" "9003cbe9ec6450f07878004be5f06e42d54c8c8381bab2c75991913d2c75496d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9003cbe9ec6450f07878004be5f06e42d54c8c8381bab2c75991913d2c75496d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9003cbe9ec6450f07878004be5f06e42d54c8c8381bab2c75991913d2c75496d", kill_on_drop: false }`
[INFO] [stdout] 9003cbe9ec6450f07878004be5f06e42d54c8c8381bab2c75991913d2c75496d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b98202ad067d72e45cec8be3d5c15d86ef0fd086" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bcbb2f34e65dc22af5c377914e39429ad867dbee7730001137addab8d9eaee74
[INFO] running `Command { std: "docker" "start" "-a" "bcbb2f34e65dc22af5c377914e39429ad867dbee7730001137addab8d9eaee74", kill_on_drop: false }`
[INFO] [stderr]     Checking first_follow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Item` is never constructed
[INFO] [stdout]  --> src/follow.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Item {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/follow.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Item {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 13 |     fn new(variable: char, token: Token) -> Item {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `process_follow_variable`, `process_follow_rule2`, `process_follow_rule3`, and `fetch_follows` are never used
[INFO] [stdout]   --> src/follow.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Production {
[INFO] [stdout]    | --------------- associated functions in this implementation
[INFO] [stdout] 19 |     fn process_follow_variable(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     fn process_follow_rule2(variable: char, grammar: &Grammar) -> HashSet<Token> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     fn process_follow_rule3(next_token: Option<&Token>, grammar: &Grammar) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     fn fetch_follows(
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `compute_follows` is never used
[INFO] [stdout]    --> src/follow.rs:126:12
[INFO] [stdout]     |
[INFO] [stdout] 125 | impl Grammar {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] 126 |     pub fn compute_follows(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `GrammarError` is never used
[INFO] [stdout]  --> src/grammar.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum GrammarError {
[INFO] [stdout]   |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `production_is_initial`, `add_variable`, `add_terminal`, and `get_mut_production_by_var` are never used
[INFO] [stdout]   --> src/grammar.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Grammar {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] 17 |     pub fn production_is_initial(&self, production: &Production) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn add_variable(&mut self, variable: char) -> Result<(), GrammarError> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn add_terminal(&mut self, terminal: String) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn get_mut_production_by_var(&mut self, variable: char) -> Option<&mut Production> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `ends_with_token`, `set_follows`, and `get_derivation_slices` are never used
[INFO] [stdout]   --> src/production.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Production {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn ends_with_token(&self, token: &Token) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn set_follows(&mut self, follows: HashSet<Token>) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn get_derivation_slices(&self) -> std::str::Split<'_, &str> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `DollarSign` and `Placeholder` are never constructed
[INFO] [stdout]   --> src/token.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub enum Token {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 11 |     DollarSign,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 12 |     Placeholder(char),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/token.rs:52:25
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn new(grammar: &Grammar) -> TokenProcessor {
[INFO] [stdout]    |                         ^^^^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn new(grammar: &Grammar) -> TokenProcessor<'_> {
[INFO] [stdout]    |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `GrammarError` is never used
[INFO] [stdout]  --> src/grammar.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum GrammarError {
[INFO] [stdout]   |          ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add_variable` and `add_terminal` are never used
[INFO] [stdout]   --> src/grammar.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Grammar {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn add_variable(&mut self, variable: char) -> Result<(), GrammarError> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn add_terminal(&mut self, terminal: String) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `ends_with_token`, `set_follows`, and `get_derivation_slices` are never used
[INFO] [stdout]   --> src/production.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Production {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn ends_with_token(&self, token: &Token) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn set_follows(&mut self, follows: HashSet<Token>) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn get_derivation_slices(&self) -> std::str::Split<'_, &str> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/token.rs:52:25
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn new(grammar: &Grammar) -> TokenProcessor {
[INFO] [stdout]    |                         ^^^^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn new(grammar: &Grammar) -> TokenProcessor<'_> {
[INFO] [stdout]    |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "bcbb2f34e65dc22af5c377914e39429ad867dbee7730001137addab8d9eaee74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcbb2f34e65dc22af5c377914e39429ad867dbee7730001137addab8d9eaee74", kill_on_drop: false }`
[INFO] [stdout] bcbb2f34e65dc22af5c377914e39429ad867dbee7730001137addab8d9eaee74
