[INFO] fetching crate levenshtein_automata 0.2.1...
[INFO] testing levenshtein_automata-0.2.1 against 1.69.0 for beta-1.70-1
[INFO] extracting crate levenshtein_automata 0.2.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate levenshtein_automata 0.2.1 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 levenshtein_automata 0.2.1
[INFO] finished tweaking crates.io crate levenshtein_automata 0.2.1
[INFO] tweaked toml for crates.io crate levenshtein_automata 0.2.1 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fst v0.4.7
[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] 01200d9c5d9a018a38cc5d0517164af060542e51ed2f2b1ce933ab40ad38000e
[INFO] running `Command { std: "docker" "start" "-a" "01200d9c5d9a018a38cc5d0517164af060542e51ed2f2b1ce933ab40ad38000e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01200d9c5d9a018a38cc5d0517164af060542e51ed2f2b1ce933ab40ad38000e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01200d9c5d9a018a38cc5d0517164af060542e51ed2f2b1ce933ab40ad38000e", kill_on_drop: false }`
[INFO] [stdout] 01200d9c5d9a018a38cc5d0517164af060542e51ed2f2b1ce933ab40ad38000e
[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] a70ff80b6cbbcd3b7594f5661298bf8f393d7da8068c914dcc20ad42df9ba9f1
[INFO] running `Command { std: "docker" "start" "-a" "a70ff80b6cbbcd3b7594f5661298bf8f393d7da8068c914dcc20ad42df9ba9f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling levenshtein_automata v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "a70ff80b6cbbcd3b7594f5661298bf8f393d7da8068c914dcc20ad42df9ba9f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a70ff80b6cbbcd3b7594f5661298bf8f393d7da8068c914dcc20ad42df9ba9f1", kill_on_drop: false }`
[INFO] [stdout] a70ff80b6cbbcd3b7594f5661298bf8f393d7da8068c914dcc20ad42df9ba9f1
[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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44975428f62bb48ffaa8cb5f651c11ec2967584523490ab9abeaaf566ace7ae0
[INFO] running `Command { std: "docker" "start" "-a" "44975428f62bb48ffaa8cb5f651c11ec2967584523490ab9abeaaf566ace7ae0", kill_on_drop: false }`
[INFO] [stderr]    Compiling levenshtein v1.0.5
[INFO] [stderr]    Compiling levenshtein_automata v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:35:27
[INFO] [stdout]    |
[INFO] [stdout] 35 | #![cfg_attr(test, feature(test))]
[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 `levenshtein_automata` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "44975428f62bb48ffaa8cb5f651c11ec2967584523490ab9abeaaf566ace7ae0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44975428f62bb48ffaa8cb5f651c11ec2967584523490ab9abeaaf566ace7ae0", kill_on_drop: false }`
[INFO] [stdout] 44975428f62bb48ffaa8cb5f651c11ec2967584523490ab9abeaaf566ace7ae0
