[INFO] fetching crate const-combinations 2.0.3...
[INFO] testing const-combinations-2.0.3 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate const-combinations 2.0.3 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate const-combinations 2.0.3 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 const-combinations 2.0.3
[INFO] finished tweaking crates.io crate const-combinations 2.0.3
[INFO] tweaked toml for crates.io crate const-combinations 2.0.3 written to /workspace/builds/worker-14/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] [stderr]     Blocking waiting for file lock on package cache
[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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e12cac035456c576e40da06a312f8c9e78b1dff0e03adda3e6119c4013c1602b
[INFO] running `Command { std: "docker" "start" "-a" "e12cac035456c576e40da06a312f8c9e78b1dff0e03adda3e6119c4013c1602b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e12cac035456c576e40da06a312f8c9e78b1dff0e03adda3e6119c4013c1602b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e12cac035456c576e40da06a312f8c9e78b1dff0e03adda3e6119c4013c1602b", kill_on_drop: false }`
[INFO] [stdout] e12cac035456c576e40da06a312f8c9e78b1dff0e03adda3e6119c4013c1602b
[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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9ea5004a6b3fc65bc1a571721a2050fd33af8cbff8c9df6d3dd0743058f3bc9
[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" "a9ea5004a6b3fc65bc1a571721a2050fd33af8cbff8c9df6d3dd0743058f3bc9", kill_on_drop: false }`
[INFO] [stderr]    Compiling const-combinations v2.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(maybe_uninit_uninit_array)]
[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 `const-combinations` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "a9ea5004a6b3fc65bc1a571721a2050fd33af8cbff8c9df6d3dd0743058f3bc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9ea5004a6b3fc65bc1a571721a2050fd33af8cbff8c9df6d3dd0743058f3bc9", kill_on_drop: false }`
[INFO] [stdout] a9ea5004a6b3fc65bc1a571721a2050fd33af8cbff8c9df6d3dd0743058f3bc9