[INFO] fetching crate dbui-database 0.0.53...
[INFO] checking dbui-database-0.0.53 against beta-2019-10-27 for pr-65897
[INFO] extracting crate dbui-database 0.0.53 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate dbui-database 0.0.53 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 dbui-database 0.0.53
[INFO] finished tweaking crates.io crate dbui-database 0.0.53
[INFO] tweaked toml for crates.io crate dbui-database 0.0.53 written to /workspace/builds/worker-5/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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] c64f59001278bde1360796d4b855af468187e3a465bfe69b1e22b9bbc241cb4e
[INFO] running `"docker" "start" "-a" "c64f59001278bde1360796d4b855af468187e3a465bfe69b1e22b9bbc241cb4e"`
[INFO] [stderr]    Compiling smallvec v0.6.11
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]     Checking rent_to_own v0.1.0
[INFO] [stderr]     Checking debug-helper v0.3.8
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]     Checking base32 v0.4.0
[INFO] [stderr]     Checking eui48 v0.4.6
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling jobserver v0.1.17
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking base64-url v1.1.12
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking geo-types v0.4.3
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking crc-any v2.2.3
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]    Compiling darling_core v0.8.6
[INFO] [stderr]     Checking bincode v1.2.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.8
[INFO] [stderr]    Compiling cc v1.0.46
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.2
[INFO] [stderr]     Checking short-crypt v1.0.14
[INFO] [stderr]     Checking tokio-threadpool v0.1.16
[INFO] [stderr]    Compiling chrono v0.4.9
[INFO] [stderr]     Checking r2d2 v0.8.6
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking tokio-reactor v0.1.10
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking r2d2_postgres v0.14.0
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.5
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking postgres-protocol v0.4.1
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libgit2-sys v0.9.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]    Compiling darling_macro v0.8.6
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling url v2.1.0
[INFO] [stderr]    Compiling darling v0.8.6
[INFO] [stderr]    Compiling derive_state_machine_future v0.2.0
[INFO] [stderr]    Compiling git2 v0.10.1
[INFO] [stderr]    Compiling toml v0.5.4
[INFO] [stderr]     Checking state_machine_future v0.2.0
[INFO] [stderr]     Checking tokio-postgres v0.4.0-rc.3
[INFO] [stderr]    Compiling built v0.3.2
[INFO] [stderr]    Compiling dbui-core v0.0.53
[INFO] [stderr]     Checking postgres v0.16.0-rc.2
[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/dbui-core-0.0.53/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(option_expect_none)]
[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/dbui-core-0.0.53/src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(fn_traits)]
[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/dbui-core-0.0.53/src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(unboxed_closures)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `dbui-core`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "c64f59001278bde1360796d4b855af468187e3a465bfe69b1e22b9bbc241cb4e"`
[INFO] running `"docker" "rm" "-f" "c64f59001278bde1360796d4b855af468187e3a465bfe69b1e22b9bbc241cb4e"`
[INFO] [stdout] c64f59001278bde1360796d4b855af468187e3a465bfe69b1e22b9bbc241cb4e