[INFO] updating cached repository https://github.com/nasa-playground/async-chat [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] d44d82744742bb42f72ec3d57f27243eabd52e14 [INFO] testing nasa-playground/async-chat against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnasa-playground%2Fasync-chat" "/workspace/builds/worker-1/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nasa-playground/async-chat 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 git repo https://github.com/nasa-playground/async-chat [INFO] finished tweaking git repo https://github.com/nasa-playground/async-chat [INFO] tweaked toml for git repo https://github.com/nasa-playground/async-chat written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/nasa-playground/async-chat 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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] de50d75405fdc5f6bef6dccfde934b8675d842b1d1f18d548037dd0104147d84 [INFO] running `"docker" "start" "-a" "de50d75405fdc5f6bef6dccfde934b8675d842b1d1f18d548037dd0104147d84"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling cfg-if v0.1.9 [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling proc-macro2 v1.0.4 [INFO] [stderr] Compiling getrandom v0.1.12 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling syn v1.0.5 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling ppv-lite86 v0.2.5 [INFO] [stderr] Compiling futures-core-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling proc-macro-nested v0.1.3 [INFO] [stderr] Compiling arrayvec v0.4.11 [INFO] [stderr] Compiling cc v1.0.45 [INFO] [stderr] Compiling futures-io-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling nodrop v0.1.13 [INFO] [stderr] Compiling scopeguard v1.0.0 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Compiling regex-syntax v0.6.12 [INFO] [stderr] Compiling quick-error v1.2.2 [INFO] [stderr] Compiling termcolor v1.0.5 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling crossbeam-utils v0.6.6 [INFO] [stderr] Compiling futures-sink-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling async-macros v1.0.0 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling humantime v1.3.0 [INFO] [stderr] Compiling futures-channel-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling async-task v1.0.0 [INFO] [stderr] Compiling crossbeam-channel v0.3.9 [INFO] [stderr] Compiling kv-log-macro v1.0.4 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling c2-chacha v0.2.2 [INFO] [stderr] Compiling aho-corasick v0.7.6 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Compiling backtrace-sys v0.1.31 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling num_cpus v1.10.1 [INFO] [stderr] Compiling iovec v0.1.2 [INFO] [stderr] Compiling atty v0.2.13 [INFO] [stderr] Compiling memoffset v0.5.1 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling mio v0.6.19 [INFO] [stderr] Compiling rand_chacha v0.2.1 [INFO] [stderr] Compiling crossbeam-epoch v0.7.2 [INFO] [stderr] Compiling rand v0.7.2 [INFO] [stderr] Compiling crossbeam-deque v0.7.1 [INFO] [stderr] Compiling backtrace v0.3.37 [INFO] [stderr] Compiling mio-uds v0.6.7 [INFO] [stderr] Compiling regex v1.3.1 [INFO] [stderr] Compiling env_logger v0.6.2 [INFO] [stderr] Compiling proc-macro-hack v0.5.9 [INFO] [stderr] Compiling synstructure v0.10.2 [INFO] [stderr] Compiling futures-join-macro-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling futures-select-macro-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling failure v0.1.5 [INFO] [stderr] Compiling futures-util-preview v0.3.0-alpha.18 [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/futures-util-preview-0.3.0-alpha.18/src/lib.rs:4:38 [INFO] [stderr] | [INFO] [stderr] 4 | #![cfg_attr(feature = "async-await", feature(async_await))] [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 `futures-util-preview`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "de50d75405fdc5f6bef6dccfde934b8675d842b1d1f18d548037dd0104147d84"` [INFO] running `"docker" "rm" "-f" "de50d75405fdc5f6bef6dccfde934b8675d842b1d1f18d548037dd0104147d84"` [INFO] [stdout] de50d75405fdc5f6bef6dccfde934b8675d842b1d1f18d548037dd0104147d84