[INFO] fetching crate atdir 0.0.1-wip...
[INFO] documenting atdir-0.0.1-wip against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate atdir 0.0.1-wip into /workspace/builds/worker-65/source
[INFO] validating manifest of crates.io crate atdir 0.0.1-wip 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 atdir 0.0.1-wip
[INFO] finished tweaking crates.io crate atdir 0.0.1-wip
[INFO] tweaked toml for crates.io crate atdir 0.0.1-wip written to /workspace/builds/worker-65/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-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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] 298bb6f9cac276cc96596fe05657fbacbbdcc4d41dda135d25bbc8dcec7e4ffc
[INFO] running `Command { std: "docker" "start" "-a" "298bb6f9cac276cc96596fe05657fbacbbdcc4d41dda135d25bbc8dcec7e4ffc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "298bb6f9cac276cc96596fe05657fbacbbdcc4d41dda135d25bbc8dcec7e4ffc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "298bb6f9cac276cc96596fe05657fbacbbdcc4d41dda135d25bbc8dcec7e4ffc", kill_on_drop: false }`
[INFO] [stdout] 298bb6f9cac276cc96596fe05657fbacbbdcc4d41dda135d25bbc8dcec7e4ffc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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] 1034c44ef51a6cbe1e77e486ccda09492eaa4a721e44a7c5a46793743f54d12a
[INFO] running `Command { std: "docker" "start" "-a" "1034c44ef51a6cbe1e77e486ccda09492eaa4a721e44a7c5a46793743f54d12a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking uninit v0.4.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking cbuffer v0.2.0
[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/cbuffer-0.2.0/src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(maybe_uninit_slice)]
[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 `cbuffer` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "1034c44ef51a6cbe1e77e486ccda09492eaa4a721e44a7c5a46793743f54d12a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1034c44ef51a6cbe1e77e486ccda09492eaa4a721e44a7c5a46793743f54d12a", kill_on_drop: false }`
[INFO] [stdout] 1034c44ef51a6cbe1e77e486ccda09492eaa4a721e44a7c5a46793743f54d12a
