[INFO] cloning repository https://github.com/lovebaihezi/llsyntax
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lovebaihezi/llsyntax" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flovebaihezi%2Fllsyntax", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flovebaihezi%2Fllsyntax'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9167bb2ddc6d41d19044202e9673f30707429555
[INFO] testing lovebaihezi/llsyntax against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flovebaihezi%2Fllsyntax" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lovebaihezi/llsyntax on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-9/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/lovebaihezi/llsyntax
[INFO] finished tweaking git repo https://github.com/lovebaihezi/llsyntax
[INFO] tweaked toml for git repo https://github.com/lovebaihezi/llsyntax written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/lovebaihezi/llsyntax already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", 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] c46c6bdfc43ef8e0e799586b2765754a709bc69b2a1a28ee32706034133fc317
[INFO] running `Command { std: "docker" "start" "-a" "c46c6bdfc43ef8e0e799586b2765754a709bc69b2a1a28ee32706034133fc317", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c46c6bdfc43ef8e0e799586b2765754a709bc69b2a1a28ee32706034133fc317", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c46c6bdfc43ef8e0e799586b2765754a709bc69b2a1a28ee32706034133fc317", kill_on_drop: false }`
[INFO] [stdout] c46c6bdfc43ef8e0e799586b2765754a709bc69b2a1a28ee32706034133fc317
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", 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] dfeb382d229d942fed7734680b3a6980fe93afd95e0645759200ff17c609067b
[INFO] running `Command { std: "docker" "start" "-a" "dfeb382d229d942fed7734680b3a6980fe93afd95e0645759200ff17c609067b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.2
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling crossbeam v0.8.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]    Compiling tracing v0.1.29
[INFO] [stderr]    Compiling syntax v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(derive_default_enum)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/grammar/mod.rs:6:28
[INFO] [stdout]   |
[INFO] [stdout] 6 |     collections::{HashMap, HashSet},
[INFO] [stdout]   |                            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/grammar/implement.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         todo!();
[INFO] [stdout]     |         ------- any code following this expression is unreachable
[INFO] [stdout] 118 |         s
[INFO] [stdout]     |         ^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rayon::prelude`
[INFO] [stdout]  --> src/grammar/implement.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rayon::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syntax` due to 2 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "dfeb382d229d942fed7734680b3a6980fe93afd95e0645759200ff17c609067b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfeb382d229d942fed7734680b3a6980fe93afd95e0645759200ff17c609067b", kill_on_drop: false }`
[INFO] [stdout] dfeb382d229d942fed7734680b3a6980fe93afd95e0645759200ff17c609067b