[INFO] fetching crate rustimate-controllers 0.1.0...
[INFO] documenting rustimate-controllers-0.1.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate rustimate-controllers 0.1.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate rustimate-controllers 0.1.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustimate-controllers 0.1.0
[INFO] finished tweaking crates.io crate rustimate-controllers 0.1.0
[INFO] tweaked toml for crates.io crate rustimate-controllers 0.1.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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" "+1.54.0" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa9533c2e16325435ee2627b56bb6f4e661265835bae08db946d9d96e8fb7283
[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" "fa9533c2e16325435ee2627b56bb6f4e661265835bae08db946d9d96e8fb7283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa9533c2e16325435ee2627b56bb6f4e661265835bae08db946d9d96e8fb7283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa9533c2e16325435ee2627b56bb6f4e661265835bae08db946d9d96e8fb7283", kill_on_drop: false }`
[INFO] [stdout] fa9533c2e16325435ee2627b56bb6f4e661265835bae08db946d9d96e8fb7283
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f5fbd5288f31e0c09cbae5f57648eb23741f50845e26327a6cadf5c6ecc3395
[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" "5f5fbd5288f31e0c09cbae5f57648eb23741f50845e26327a6cadf5c6ecc3395", kill_on_drop: false }`
[INFO] [stderr]     Checking copyless v0.1.5
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling maud_htmlescape v0.17.0
[INFO] [stderr]     Checking hashbrown v0.3.1
[INFO] [stderr]     Checking hashbrown v0.5.0
[INFO] [stderr]     Checking actix-service v0.4.2
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]     Checking lock_api v0.2.0
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling parking_lot_core v0.5.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]    Compiling parking_lot v0.8.0
[INFO] [stderr]    Compiling rust-embed-utils v5.1.0
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking resolv-conf v0.6.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling actix-web-codegen v0.1.3
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling enum-as-inner v0.2.1
[INFO] [stderr]    Compiling maud_macros v0.21.0
[INFO] [stderr]    Compiling derive_more v0.14.1
[INFO] [stderr]    Compiling actix_derive v0.4.0
[INFO] [stderr]    Compiling derive_more v0.15.0
[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/maud_macros-0.21.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_def_site)]
[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/maud_macros-0.21.0/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(proc_macro_diagnostic)]
[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/maud_macros-0.21.0/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(proc_macro_hygiene)]
[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/maud_macros-0.21.0/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(proc_macro_quote)]
[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/maud_macros-0.21.0/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(proc_macro_span)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling jobserver v0.1.23
[INFO] [stdout] error: aborting due to 5 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 `maud_macros`
[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" "5f5fbd5288f31e0c09cbae5f57648eb23741f50845e26327a6cadf5c6ecc3395", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f5fbd5288f31e0c09cbae5f57648eb23741f50845e26327a6cadf5c6ecc3395", kill_on_drop: false }`
[INFO] [stdout] 5f5fbd5288f31e0c09cbae5f57648eb23741f50845e26327a6cadf5c6ecc3395
