[INFO] fetching crate dark-light 0.1.1...
[INFO] testing dark-light-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate dark-light 0.1.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate dark-light 0.1.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dark-light 0.1.1
[INFO] finished tweaking crates.io crate dark-light 0.1.1
[INFO] tweaked toml for crates.io crate dark-light 0.1.1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate dark-light 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c67c22f409d59e423216d5f5d41aaba4d74563bf61504527873b98d0c53acc9
[INFO] running `Command { std: "docker" "start" "-a" "2c67c22f409d59e423216d5f5d41aaba4d74563bf61504527873b98d0c53acc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c67c22f409d59e423216d5f5d41aaba4d74563bf61504527873b98d0c53acc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c67c22f409d59e423216d5f5d41aaba4d74563bf61504527873b98d0c53acc9", kill_on_drop: false }`
[INFO] [stdout] 2c67c22f409d59e423216d5f5d41aaba4d74563bf61504527873b98d0c53acc9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 530e51bb8990a4b8f229c7ff80aeae52a3114690776a6259a0dfdfdb8d0778a4
[INFO] running `Command { std: "docker" "start" "-a" "530e51bb8990a4b8f229c7ff80aeae52a3114690776a6259a0dfdfdb8d0778a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling dark-light v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Mode`
[INFO] [stdout]   --> src/lib.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         Mode::Light
[INFO] [stdout]    |         ^^^^ use of undeclared type `Mode`
[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 E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dark-light` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "530e51bb8990a4b8f229c7ff80aeae52a3114690776a6259a0dfdfdb8d0778a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "530e51bb8990a4b8f229c7ff80aeae52a3114690776a6259a0dfdfdb8d0778a4", kill_on_drop: false }`
[INFO] [stdout] 530e51bb8990a4b8f229c7ff80aeae52a3114690776a6259a0dfdfdb8d0778a4