[INFO] fetching crate hyaline-smr 0.1.1...
[INFO] documenting hyaline-smr-0.1.1 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate hyaline-smr 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate hyaline-smr 0.1.1 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hyaline-smr 0.1.1
[INFO] finished tweaking crates.io crate hyaline-smr 0.1.1
[INFO] tweaked toml for crates.io crate hyaline-smr 0.1.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate hyaline-smr 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atomicdouble v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "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] 4632b499f993a4f1fa6050c97a7b985d6c4cbbccd877ec1c50fe4f31b513de92
[INFO] running `Command { std: "docker" "start" "-a" "4632b499f993a4f1fa6050c97a7b985d6c4cbbccd877ec1c50fe4f31b513de92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4632b499f993a4f1fa6050c97a7b985d6c4cbbccd877ec1c50fe4f31b513de92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4632b499f993a4f1fa6050c97a7b985d6c4cbbccd877ec1c50fe4f31b513de92", kill_on_drop: false }`
[INFO] [stdout] 4632b499f993a4f1fa6050c97a7b985d6c4cbbccd877ec1c50fe4f31b513de92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "RUSTDOCFLAGS=--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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] e79c0af243470b8a1c9896ffb864db28fdeb76331267d0948a27a1ea83f11489
[INFO] running `Command { std: "docker" "start" "-a" "e79c0af243470b8a1c9896ffb864db28fdeb76331267d0948a27a1ea83f11489", kill_on_drop: false }`
[INFO] [stderr]     Checking atomicdouble v0.1.4
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/atomicdouble-0.1.4/src/lib.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![feature(stdsimd)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/atomicdouble-0.1.4/src/lib.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | #![feature(cmpxchg16b_target_feature)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/atomicdouble-0.1.4/src/lib.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![feature(stdsimd)]
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `atomicdouble` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "e79c0af243470b8a1c9896ffb864db28fdeb76331267d0948a27a1ea83f11489", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e79c0af243470b8a1c9896ffb864db28fdeb76331267d0948a27a1ea83f11489", kill_on_drop: false }`
[INFO] [stdout] e79c0af243470b8a1c9896ffb864db28fdeb76331267d0948a27a1ea83f11489