[INFO] fetching crate ninjars 0.1.0...
[INFO] documenting ninjars-0.1.0 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate ninjars 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ninjars 0.1.0 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ninjars 0.1.0
[INFO] finished tweaking crates.io crate ninjars 0.1.0
[INFO] tweaked toml for crates.io crate ninjars 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate ninjars 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ninja-parse v0.1.0
[INFO] [stderr]   Downloaded async-trait v0.1.39
[INFO] [stderr]   Downloaded ninja-metrics v0.2.0
[INFO] [stderr]   Downloaded ninja-builder v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47f096dd93a5f063364c2ad1e1787bb4dcaca596eac268f996496139f6040884
[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" "47f096dd93a5f063364c2ad1e1787bb4dcaca596eac268f996496139f6040884", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47f096dd93a5f063364c2ad1e1787bb4dcaca596eac268f996496139f6040884", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47f096dd93a5f063364c2ad1e1787bb4dcaca596eac268f996496139f6040884", kill_on_drop: false }`
[INFO] [stdout] 47f096dd93a5f063364c2ad1e1787bb4dcaca596eac268f996496139f6040884
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 258409159c17cc4a580beefc89504e6a2097b9cf5a16ba628a53263e01da32e9
[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" "258409159c17cc4a580beefc89504e6a2097b9cf5a16ba628a53263e01da32e9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking ninja-metrics v0.2.0
[INFO] [stderr]     Checking pico-args v0.3.4
[INFO] [stderr]     Checking termios v0.3.2
[INFO] [stderr]     Checking terminal_size v0.1.13
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking console v0.11.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling async-trait v0.1.39
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking ninja-parse v0.1.0
[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/ninja-parse-0.1.0/src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(is_sorted)]
[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 `ninja-parse`
[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" "258409159c17cc4a580beefc89504e6a2097b9cf5a16ba628a53263e01da32e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "258409159c17cc4a580beefc89504e6a2097b9cf5a16ba628a53263e01da32e9", kill_on_drop: false }`
[INFO] [stdout] 258409159c17cc4a580beefc89504e6a2097b9cf5a16ba628a53263e01da32e9
