[INFO] fetching crate levenshtein_automata 0.2.1...
[INFO] testing levenshtein_automata-0.2.1 against 1.75.0 for beta-1.76-1
[INFO] extracting crate levenshtein_automata 0.2.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate levenshtein_automata 0.2.1 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "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-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 418b070899cd9782c639384dd9482ae5ce04190e6ff6ac0b8954fc4512531b98
[INFO] running `Command { std: "docker" "start" "-a" "418b070899cd9782c639384dd9482ae5ce04190e6ff6ac0b8954fc4512531b98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "418b070899cd9782c639384dd9482ae5ce04190e6ff6ac0b8954fc4512531b98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "418b070899cd9782c639384dd9482ae5ce04190e6ff6ac0b8954fc4512531b98", kill_on_drop: false }`
[INFO] [stdout] 418b070899cd9782c639384dd9482ae5ce04190e6ff6ac0b8954fc4512531b98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68aef1eea4daa8fd6f7e28b80e7255dd857ad1eb0619e2c7aea8d07d7daaaa52
[INFO] running `Command { std: "docker" "start" "-a" "68aef1eea4daa8fd6f7e28b80e7255dd857ad1eb0619e2c7aea8d07d7daaaa52", kill_on_drop: false }`
[INFO] [stderr]    Compiling levenshtein_automata v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "68aef1eea4daa8fd6f7e28b80e7255dd857ad1eb0619e2c7aea8d07d7daaaa52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68aef1eea4daa8fd6f7e28b80e7255dd857ad1eb0619e2c7aea8d07d7daaaa52", kill_on_drop: false }`
[INFO] [stdout] 68aef1eea4daa8fd6f7e28b80e7255dd857ad1eb0619e2c7aea8d07d7daaaa52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1caaec79ff53591bb42c7c6d72140aa54b52df8a4f8083d44e55e5de1fd1e63f
[INFO] running `Command { std: "docker" "start" "-a" "1caaec79ff53591bb42c7c6d72140aa54b52df8a4f8083d44e55e5de1fd1e63f", 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` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "1caaec79ff53591bb42c7c6d72140aa54b52df8a4f8083d44e55e5de1fd1e63f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1caaec79ff53591bb42c7c6d72140aa54b52df8a4f8083d44e55e5de1fd1e63f", kill_on_drop: false }`
[INFO] [stdout] 1caaec79ff53591bb42c7c6d72140aa54b52df8a4f8083d44e55e5de1fd1e63f
