[INFO] fetching crate heim-host 0.0.8...
[INFO] checking heim-host-0.0.8 against beta-2019-10-27 for pr-65897
[INFO] extracting crate heim-host 0.0.8 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate heim-host 0.0.8 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 heim-host 0.0.8
[INFO] finished tweaking crates.io crate heim-host 0.0.8
[INFO] tweaked toml for crates.io crate heim-host 0.0.8 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate heim-host 0.0.8 already has a lockfile, it will not be regenerated
[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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] b52a58d4eebf39bf136ecd4741d81060d6ecde68b473e4f1f129cb988b8ff9d7
[INFO] running `"docker" "start" "-a" "b52a58d4eebf39bf136ecd4741d81060d6ecde68b473e4f1f129cb988b8ff9d7"`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling heim-common v0.0.8
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling heim-host v0.0.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking platforms v0.2.1
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking toml v0.5.3
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking syn v0.15.44
[INFO] [stderr]     Checking pulldown-cmark v0.4.1
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking num-rational v0.2.2
[INFO] [stderr]     Checking uom v0.25.0
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking nix v0.15.0
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking version-sync v0.8.1
[INFO] [stderr]    Compiling heim-derive v0.0.8
[INFO] [stderr]     Checking heim-runtime v0.0.4
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> benches/host.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> tests/smoke.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `heim-host`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `heim-host`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b52a58d4eebf39bf136ecd4741d81060d6ecde68b473e4f1f129cb988b8ff9d7"`
[INFO] running `"docker" "rm" "-f" "b52a58d4eebf39bf136ecd4741d81060d6ecde68b473e4f1f129cb988b8ff9d7"`
[INFO] [stdout] b52a58d4eebf39bf136ecd4741d81060d6ecde68b473e4f1f129cb988b8ff9d7