[INFO] fetching crate fast_rsync 0.1.3...
[INFO] documenting fast_rsync-0.1.3 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate fast_rsync 0.1.3 into /workspace/builds/worker-24/source
[INFO] validating manifest of crates.io crate fast_rsync 0.1.3 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fast_rsync 0.1.3
[INFO] finished tweaking crates.io crate fast_rsync 0.1.3
[INFO] tweaked toml for crates.io crate fast_rsync 0.1.3 written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 737a47b3da4a0c8c2f0ae7a4e73e7c2c744fb116e3b40f6b1626ff15fb020fbe
[INFO] running `Command { std: "docker" "start" "-a" "737a47b3da4a0c8c2f0ae7a4e73e7c2c744fb116e3b40f6b1626ff15fb020fbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "737a47b3da4a0c8c2f0ae7a4e73e7c2c744fb116e3b40f6b1626ff15fb020fbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "737a47b3da4a0c8c2f0ae7a4e73e7c2c744fb116e3b40f6b1626ff15fb020fbe", kill_on_drop: false }`
[INFO] [stdout] 737a47b3da4a0c8c2f0ae7a4e73e7c2c744fb116e3b40f6b1626ff15fb020fbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da119e9ecf02c337d1e8b2ebd1d55a5a92864b901281eed49f5621674093858e
[INFO] running `Command { std: "docker" "start" "-a" "da119e9ecf02c337d1e8b2ebd1d55a5a92864b901281eed49f5621674093858e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]    Compiling packed_simd_2 v0.3.5
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/packed_simd_2-0.3.5/src/lib.rs:214:1
[INFO] [stdout]     |
[INFO] [stdout] 214 | / #![feature(
[INFO] [stdout] 215 | |     const_generics,
[INFO] [stdout] 216 | |     repr_simd,
[INFO] [stdout] 217 | |     rustc_attrs,
[INFO] [stdout] ...   |
[INFO] [stdout] 227 | |     llvm_asm
[INFO] [stdout] 228 | | )]
[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 `packed_simd_2` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "da119e9ecf02c337d1e8b2ebd1d55a5a92864b901281eed49f5621674093858e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da119e9ecf02c337d1e8b2ebd1d55a5a92864b901281eed49f5621674093858e", kill_on_drop: false }`
[INFO] [stdout] da119e9ecf02c337d1e8b2ebd1d55a5a92864b901281eed49f5621674093858e
