[INFO] cloning repository https://github.com/alexfertel/atl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alexfertel/atl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexfertel%2Fatl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexfertel%2Fatl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 78540dc42f0496bdbab9856c105ca462efa4747e
[INFO] checking alexfertel/atl against try#e0f03aec47b100bc29555561bd62a99d1bc6aca5 for pr-86231
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexfertel%2Fatl" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alexfertel/atl on toolchain e0f03aec47b100bc29555561bd62a99d1bc6aca5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alexfertel/atl
[INFO] finished tweaking git repo https://github.com/alexfertel/atl
[INFO] tweaked toml for git repo https://github.com/alexfertel/atl written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/alexfertel/atl already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5903273fb6199ad6ce28ccf0adffafe0112320da3c06cdcf57baf063df353770
[INFO] running `Command { std: "docker" "start" "-a" "5903273fb6199ad6ce28ccf0adffafe0112320da3c06cdcf57baf063df353770", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5903273fb6199ad6ce28ccf0adffafe0112320da3c06cdcf57baf063df353770", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5903273fb6199ad6ce28ccf0adffafe0112320da3c06cdcf57baf063df353770", kill_on_drop: false }`
[INFO] [stdout] 5903273fb6199ad6ce28ccf0adffafe0112320da3c06cdcf57baf063df353770
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07939d9e80ec9ff2e10a51fec39672aa7831cfc30c6a96473429c347b0144750
[INFO] running `Command { std: "docker" "start" "-a" "07939d9e80ec9ff2e10a51fec39672aa7831cfc30c6a96473429c347b0144750", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking atl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::sync::atomic::AtomicBool`
[INFO] [stdout]  --> src/nfa.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::sync::atomic::AtomicBool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::atomic::AtomicBool`
[INFO] [stdout]  --> src/nfa.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::sync::atomic::AtomicBool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> src/nfa.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/dfa.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn new(
[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: `add_transition`
[INFO] [stdout]   --> src/dfa.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn add_transition(&mut self, source_state: State, symbol: char, destination_state: State) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `recognizes`
[INFO] [stdout]   --> src/dfa.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn recognizes(&self, word: &str) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `WORKER_COUNT`
[INFO] [stdout]  --> src/nfa.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | const WORKER_COUNT: usize = 1024;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/nfa.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn new(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_transition`
[INFO] [stdout]   --> src/nfa.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn add_transition(
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `step`
[INFO] [stdout]   --> src/nfa.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn step(&self, ch: char, state: State) -> &HashSet<State> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `recognize_in_parallel`
[INFO] [stdout]   --> src/nfa.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn recognize_in_parallel<'a>(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `recognizes`
[INFO] [stdout]   --> src/nfa.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn recognizes(&self, word: &str) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/state.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub fn new(id: i32) -> State {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Epsilon`
[INFO] [stdout]  --> src/symbol.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Epsilon,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Identifier`
[INFO] [stdout]  --> src/symbol.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     Identifier(char),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> src/nfa.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Epsilon`
[INFO] [stdout]  --> src/symbol.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Epsilon,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.79s
[INFO] running `Command { std: "docker" "inspect" "07939d9e80ec9ff2e10a51fec39672aa7831cfc30c6a96473429c347b0144750", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07939d9e80ec9ff2e10a51fec39672aa7831cfc30c6a96473429c347b0144750", kill_on_drop: false }`
[INFO] [stdout] 07939d9e80ec9ff2e10a51fec39672aa7831cfc30c6a96473429c347b0144750