[INFO] cloning repository https://github.com/SakkiWakki/parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SakkiWakki/parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSakkiWakki%2Fparser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSakkiWakki%2Fparser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 116721eafd1a506c76df7578db47e045aca7cbef
[INFO] checking SakkiWakki/parser against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSakkiWakki%2Fparser" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/SakkiWakki/parser
[INFO] finished tweaking git repo https://github.com/SakkiWakki/parser
[INFO] tweaked toml for git repo https://github.com/SakkiWakki/parser written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SakkiWakki/parser on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/SakkiWakki/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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking SakkiWakki/parser against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSakkiWakki%2Fparser" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/SakkiWakki/parser
[INFO] finished tweaking git repo https://github.com/SakkiWakki/parser
[INFO] tweaked toml for git repo https://github.com/SakkiWakki/parser written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SakkiWakki/parser on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/SakkiWakki/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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3ee03771f150b7aaaa5c480f224082d716d60e2c6ae9ddaa3ece99b8599bdca
[INFO] running `Command { std: "docker" "start" "-a" "f3ee03771f150b7aaaa5c480f224082d716d60e2c6ae9ddaa3ece99b8599bdca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3ee03771f150b7aaaa5c480f224082d716d60e2c6ae9ddaa3ece99b8599bdca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3ee03771f150b7aaaa5c480f224082d716d60e2c6ae9ddaa3ece99b8599bdca", kill_on_drop: false }`
[INFO] [stdout] f3ee03771f150b7aaaa5c480f224082d716d60e2c6ae9ddaa3ece99b8599bdca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e78e3e65b2479ac52a631f390d8ec3741bccf41a84cdab6bb711634caf80f64
[INFO] running `Command { std: "docker" "start" "-a" "2e78e3e65b2479ac52a631f390d8ec3741bccf41a84cdab6bb711634caf80f64", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]  --> src/parser.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn parse(&mut self,  expr: String) -> ParseTree {
[INFO] [stdout]   |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]  --> src/parser.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn parse(&mut self,  expr: String) -> ParseTree {
[INFO] [stdout]   |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/tokenizer.rs:17:24
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn tokenize(&self, expr: &str) -> Result<Vec<Term>, TokenizeError> {
[INFO] [stdout]    |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ret`
[INFO] [stdout]   --> src/tokenizer.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let ret: Result<Vec<Term>, TokenizeError>;
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_ret`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/tokenizer.rs:17:24
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn tokenize(&self, expr: &str) -> Result<Vec<Term>, TokenizeError> {
[INFO] [stdout]    |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ret`
[INFO] [stdout]   --> src/tokenizer.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let ret: Result<Vec<Term>, TokenizeError>;
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_ret`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Parser` is never constructed
[INFO] [stdout]  --> src/parser.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Parser {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `parse` is never used
[INFO] [stdout]  --> src/parser.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl Parser {
[INFO] [stdout]   | ----------- method in this implementation
[INFO] [stdout] 8 |     fn parse(&mut self,  expr: String) -> ParseTree {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Tokenizer` is never used
[INFO] [stdout]  --> src/tokenizer.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | trait Tokenizer {
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GreedyTokenizer` is never constructed
[INFO] [stdout]   --> src/tokenizer.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct GreedyTokenizer {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Automaton` is never constructed
[INFO] [stdout]  --> src/automaton.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Automaton {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `State` is never constructed
[INFO] [stdout]   --> src/automaton.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct State {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `extend` are never used
[INFO] [stdout]   --> src/automaton.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Automaton {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 17 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn extend(&mut self, c: char) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `len`, `set_link`, and `set_length` are never used
[INFO] [stdout]   --> src/automaton.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | impl State {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 79 |     fn new(length: usize) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |     fn len(&self) -> usize {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 91 |     fn set_link(&mut self, link: usize) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95 |     fn set_length(&mut self, length: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Parser` is never constructed
[INFO] [stdout]  --> src/parser.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Parser {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `parse` is never used
[INFO] [stdout]  --> src/parser.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl Parser {
[INFO] [stdout]   | ----------- method in this implementation
[INFO] [stdout] 8 |     fn parse(&mut self,  expr: String) -> ParseTree {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Tokenizer` is never used
[INFO] [stdout]  --> src/tokenizer.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | trait Tokenizer {
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GreedyTokenizer` is never constructed
[INFO] [stdout]   --> src/tokenizer.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct GreedyTokenizer {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Automaton` is never constructed
[INFO] [stdout]  --> src/automaton.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Automaton {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `State` is never constructed
[INFO] [stdout]   --> src/automaton.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct State {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `extend` are never used
[INFO] [stdout]   --> src/automaton.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Automaton {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 17 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn extend(&mut self, c: char) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `len`, `set_link`, and `set_length` are never used
[INFO] [stdout]   --> src/automaton.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | impl State {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 79 |     fn new(length: usize) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |     fn len(&self) -> usize {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 91 |     fn set_link(&mut self, link: usize) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95 |     fn set_length(&mut self, length: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "2e78e3e65b2479ac52a631f390d8ec3741bccf41a84cdab6bb711634caf80f64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e78e3e65b2479ac52a631f390d8ec3741bccf41a84cdab6bb711634caf80f64", kill_on_drop: false }`
[INFO] [stdout] 2e78e3e65b2479ac52a631f390d8ec3741bccf41a84cdab6bb711634caf80f64
