[INFO] crate lighthouse 0.1.0 is already in cache
[INFO] testing lighthouse-0.1.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate lighthouse 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate lighthouse 0.1.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate lighthouse 0.1.0
[INFO] finished tweaking crates.io crate lighthouse 0.1.0
[INFO] tweaked toml for crates.io crate lighthouse 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate lighthouse 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 76836bf244037e713ed3e32ca6f021edfa262ea63b3772d65de19fbf84efac36
[INFO] running `"docker" "start" "-a" "76836bf244037e713ed3e32ca6f021edfa262ea63b3772d65de19fbf84efac36"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stderr]    Compiling openssl-sys v0.9.54
[INFO] [stderr]    Compiling http v0.2.0
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling get_if_addrs v0.5.3
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling backtrace v0.3.43
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling tokio v0.2.11
[INFO] [stderr]    Compiling openssl v0.10.28
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling tokio-util v0.2.0
[INFO] [stderr]    Compiling ssdp v0.7.0
[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/ssdp-0.7.0/src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(ip)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]    Compiling h2 v0.2.1
[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 `ssdp`.
[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 `"docker" "inspect" "76836bf244037e713ed3e32ca6f021edfa262ea63b3772d65de19fbf84efac36"`
[INFO] running `"docker" "rm" "-f" "76836bf244037e713ed3e32ca6f021edfa262ea63b3772d65de19fbf84efac36"`
[INFO] [stdout] 76836bf244037e713ed3e32ca6f021edfa262ea63b3772d65de19fbf84efac36