[INFO] crate spectra 0.13.0 is already in cache
[INFO] checking spectra-0.13.0 against beta-2019-10-27 for pr-65897
[INFO] extracting crate spectra 0.13.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate spectra 0.13.0 on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate spectra 0.13.0
[INFO] finished tweaking crates.io crate spectra 0.13.0
[INFO] tweaked toml for crates.io crate spectra 0.13.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=allow" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 17c2422f4a7c8f89b04a39ae0dd885f85076e0fcaffbe15d647ca94345079135
[INFO] running `"docker" "start" "-a" "17c2422f4a7c8f89b04a39ae0dd885f85076e0fcaffbe15d647ca94345079135"`
[INFO] [stderr]     Checking any-cache v0.2.3
[INFO] [stderr]     Checking wavefront_obj v5.1.0
[INFO] [stderr]    Compiling ogg-sys v0.0.9
[INFO] [stderr]    Compiling vorbis-sys v0.0.8
[INFO] [stderr]    Compiling vorbis-encoder v0.1.4
[INFO] [stderr]    Compiling vorbisfile-sys v0.0.8
[INFO] [stderr]     Checking semver v0.2.3
[INFO] [stderr]    Compiling al-sys v0.6.1
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking glsl v0.9.2
[INFO] [stderr]     Checking rental v0.5.5
[INFO] [stderr]     Checking luminance v0.30.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.16
[INFO] [stderr]     Checking parking_lot v0.4.8
[INFO] [stderr]     Checking notify v4.0.14
[INFO] [stderr]     Checking glfw v0.23.0
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking luminance-windowing v0.2.4
[INFO] [stderr]     Checking warmy v0.7.3
[INFO] [stderr]     Checking luminance-glfw v0.5.4
[INFO] [stderr]     Checking vorbis v0.1.0
[INFO] [stderr]     Checking alto v3.0.4
[INFO] [stderr]     Checking cheddar v0.1.0
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cheddar-0.1.0/src/lib.rs:257:1
[INFO] [stderr]     |
[INFO] [stderr] 257 | #![feature(box_syntax)]
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cheddar-0.1.0/src/lib.rs:258:1
[INFO] [stderr]     |
[INFO] [stderr] 258 | #![feature(box_patterns)]
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `cheddar`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "17c2422f4a7c8f89b04a39ae0dd885f85076e0fcaffbe15d647ca94345079135"`
[INFO] running `"docker" "rm" "-f" "17c2422f4a7c8f89b04a39ae0dd885f85076e0fcaffbe15d647ca94345079135"`
[INFO] [stdout] 17c2422f4a7c8f89b04a39ae0dd885f85076e0fcaffbe15d647ca94345079135