[INFO] crate remarkable 0.0.1 is already in cache
[INFO] checking remarkable-0.0.1 against beta-2019-10-27 for pr-65897
[INFO] extracting crate remarkable 0.0.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate remarkable 0.0.1 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 remarkable 0.0.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate remarkable 0.0.1
[INFO] tweaked toml for crates.io crate remarkable 0.0.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stdout] ffd9926b0bf8f9a65053a60caa47140e60378d4a3ac230d97de477dc845bceb7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "ffd9926b0bf8f9a65053a60caa47140e60378d4a3ac230d97de477dc845bceb7"`
[INFO] [stderr]     Checking rb v0.3.2
[INFO] [stderr]     Checking ioctl-gen v0.1.1
[INFO] [stderr]     Checking aabb-quadtree v0.1.0
[INFO] [stderr]     Checking nix v0.8.1
[INFO] [stderr]     Checking redhook v0.1.2
[INFO] [stderr]     Checking epoll v3.1.1
[INFO] [stderr]     Checking ordered-float v0.5.2
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking rusttype v0.4.3
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking image v0.18.0
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking libmdns v0.2.3
[INFO] [stderr]     Checking evdev v0.10.1
[INFO] [stderr]     Checking remarkable v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(integer_atomics)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(const_size_of)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(integer_atomics)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(const_size_of)]
[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 `remarkable`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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 `remarkable`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "ffd9926b0bf8f9a65053a60caa47140e60378d4a3ac230d97de477dc845bceb7"`
[INFO] running `"docker" "rm" "-f" "ffd9926b0bf8f9a65053a60caa47140e60378d4a3ac230d97de477dc845bceb7"`
[INFO] [stdout] ffd9926b0bf8f9a65053a60caa47140e60378d4a3ac230d97de477dc845bceb7