[INFO] fetching crate terbium_grammar 0.0.1...
[INFO] testing terbium_grammar-0.0.1 against 1.69.0 for beta-1.70-1
[INFO] extracting crate terbium_grammar 0.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate terbium_grammar 0.0.1 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate terbium_grammar 0.0.1
[INFO] finished tweaking crates.io crate terbium_grammar 0.0.1
[INFO] tweaked toml for crates.io crate terbium_grammar 0.0.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] abb345e9840cca93aaf660e143103833be5947e9bc6c5f2c1cbcac47a7c0c66e
[INFO] running `Command { std: "docker" "start" "-a" "abb345e9840cca93aaf660e143103833be5947e9bc6c5f2c1cbcac47a7c0c66e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abb345e9840cca93aaf660e143103833be5947e9bc6c5f2c1cbcac47a7c0c66e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abb345e9840cca93aaf660e143103833be5947e9bc6c5f2c1cbcac47a7c0c66e", kill_on_drop: false }`
[INFO] [stdout] abb345e9840cca93aaf660e143103833be5947e9bc6c5f2c1cbcac47a7c0c66e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61cb8885365879088984cee81ac4608921a5a9780972a2f1dc410f81498abc4a
[INFO] running `Command { std: "docker" "start" "-a" "61cb8885365879088984cee81ac4608921a5a9780972a2f1dc410f81498abc4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling getrandom v0.2.9
[INFO] [stderr]    Compiling const-random-macro v0.1.15
[INFO] [stderr]    Compiling const-random v0.1.15
[INFO] [stderr]    Compiling ahash v0.3.8
[INFO] [stderr]    Compiling chumsky v0.8.0
[INFO] [stderr]    Compiling terbium_grammar v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(trait_alias)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `terbium_grammar` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "61cb8885365879088984cee81ac4608921a5a9780972a2f1dc410f81498abc4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61cb8885365879088984cee81ac4608921a5a9780972a2f1dc410f81498abc4a", kill_on_drop: false }`
[INFO] [stdout] 61cb8885365879088984cee81ac4608921a5a9780972a2f1dc410f81498abc4a
