[INFO] fetching crate random-access-memory 2.0.0...
[INFO] checking random-access-memory-2.0.0 against beta for pr-78714
[INFO] extracting crate random-access-memory 2.0.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate random-access-memory 2.0.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate random-access-memory 2.0.0
[INFO] finished tweaking crates.io crate random-access-memory 2.0.0
[INFO] tweaked toml for crates.io crate random-access-memory 2.0.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 28fb0e4a89adc4281fca53b6775d3a3f38aae6d7b13cfcc40412bb9bcd1cb739
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "28fb0e4a89adc4281fca53b6775d3a3f38aae6d7b13cfcc40412bb9bcd1cb739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28fb0e4a89adc4281fca53b6775d3a3f38aae6d7b13cfcc40412bb9bcd1cb739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28fb0e4a89adc4281fca53b6775d3a3f38aae6d7b13cfcc40412bb9bcd1cb739", kill_on_drop: false }`
[INFO] [stdout] 28fb0e4a89adc4281fca53b6775d3a3f38aae6d7b13cfcc40412bb9bcd1cb739
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c66a071e85091ead57bfac69cbc971755a133574907c96e2eec8e5ced8c5bbe
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3c66a071e85091ead57bfac69cbc971755a133574907c96e2eec8e5ced8c5bbe", kill_on_drop: false }`
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking random-access-storage v4.0.0
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking async-io v1.2.0
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]     Checking async-global-executor v1.4.3
[INFO] [stderr]     Checking async-std v1.7.0
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking random-access-memory v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> benches/sync.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![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 `random-access-memory`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3c66a071e85091ead57bfac69cbc971755a133574907c96e2eec8e5ced8c5bbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c66a071e85091ead57bfac69cbc971755a133574907c96e2eec8e5ced8c5bbe", kill_on_drop: false }`
[INFO] [stdout] 3c66a071e85091ead57bfac69cbc971755a133574907c96e2eec8e5ced8c5bbe