[INFO] fetching crate finally 0.0.1...
[INFO] testing finally-0.0.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate finally 0.0.1 into /workspace/builds/worker-25/source
[INFO] validating manifest of crates.io crate finally 0.0.1 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] started tweaking crates.io crate finally 0.0.1
[INFO] finished tweaking crates.io crate finally 0.0.1
[INFO] tweaked toml for crates.io crate finally 0.0.1 written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb43efadfbe65cb11da1b56a4d94a940d2944c86b266667458461493781a9c79
[INFO] running `Command { std: "docker" "start" "-a" "eb43efadfbe65cb11da1b56a4d94a940d2944c86b266667458461493781a9c79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb43efadfbe65cb11da1b56a4d94a940d2944c86b266667458461493781a9c79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb43efadfbe65cb11da1b56a4d94a940d2944c86b266667458461493781a9c79", kill_on_drop: false }`
[INFO] [stdout] eb43efadfbe65cb11da1b56a4d94a940d2944c86b266667458461493781a9c79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ccd201a0dd043dd2c38d8bcf9369fdf03e53a690e3eb187b595f5aa557d1724c
[INFO] running `Command { std: "docker" "start" "-a" "ccd201a0dd043dd2c38d8bcf9369fdf03e53a690e3eb187b595f5aa557d1724c", kill_on_drop: false }`
[INFO] [stderr]    Compiling finally v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: cannot find attribute `unsafe_destructor` in this scope
[INFO] [stdout]   --> src/lib.rs:97:3
[INFO] [stdout]    |
[INFO] [stdout] 97 | #[unsafe_destructor]
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | #![feature(unsafe_destructor)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `unsafe_destructor`
[INFO] [stdout]   --> src/lib.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | #![feature(unsafe_destructor)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `finally` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "ccd201a0dd043dd2c38d8bcf9369fdf03e53a690e3eb187b595f5aa557d1724c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccd201a0dd043dd2c38d8bcf9369fdf03e53a690e3eb187b595f5aa557d1724c", kill_on_drop: false }`
[INFO] [stdout] ccd201a0dd043dd2c38d8bcf9369fdf03e53a690e3eb187b595f5aa557d1724c