[INFO] fetching crate art_benchmarks 0.3.0...
[INFO] testing art_benchmarks-0.3.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate art_benchmarks 0.3.0 into /workspace/builds/worker-82/source
[INFO] validating manifest of crates.io crate art_benchmarks 0.3.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate art_benchmarks 0.3.0
[INFO] finished tweaking crates.io crate art_benchmarks 0.3.0
[INFO] tweaked toml for crates.io crate art_benchmarks 0.3.0 written to /workspace/builds/worker-82/source/Cargo.toml
[INFO] crate crates.io crate art_benchmarks 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/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" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 016094cdd58b21d8576d65039ce1d4f7af9cb5f567e78f6f4289ba7f19ec18fa
[INFO] running `Command { std: "docker" "start" "-a" "016094cdd58b21d8576d65039ce1d4f7af9cb5f567e78f6f4289ba7f19ec18fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "016094cdd58b21d8576d65039ce1d4f7af9cb5f567e78f6f4289ba7f19ec18fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "016094cdd58b21d8576d65039ce1d4f7af9cb5f567e78f6f4289ba7f19ec18fa", kill_on_drop: false }`
[INFO] [stdout] 016094cdd58b21d8576d65039ce1d4f7af9cb5f567e78f6f4289ba7f19ec18fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/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" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f86c475e04d9508e57b9e2f01ff480f9025a8e9c6aa79e84c0d782922f2e4ab9
[INFO] running `Command { std: "docker" "start" "-a" "f86c475e04d9508e57b9e2f01ff480f9025a8e9c6aa79e84c0d782922f2e4ab9", kill_on_drop: false }`
[INFO] [stderr]    Compiling art_benchmarks v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(array_zip)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `art_benchmarks` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "f86c475e04d9508e57b9e2f01ff480f9025a8e9c6aa79e84c0d782922f2e4ab9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f86c475e04d9508e57b9e2f01ff480f9025a8e9c6aa79e84c0d782922f2e4ab9", kill_on_drop: false }`
[INFO] [stdout] f86c475e04d9508e57b9e2f01ff480f9025a8e9c6aa79e84c0d782922f2e4ab9