[INFO] cloning repository https://github.com/rrichardson/tokio-cookbook [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rrichardson/tokio-cookbook" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frrichardson%2Ftokio-cookbook", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frrichardson%2Ftokio-cookbook'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 989e8f4bef9e4d670237ffeab578afee160d42ae [INFO] testing rrichardson/tokio-cookbook against beta-2021-01-01 for beta-1.50-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frrichardson%2Ftokio-cookbook" "/workspace/builds/worker-1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rrichardson/tokio-cookbook on toolchain beta-2021-01-01 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/rrichardson/tokio-cookbook [INFO] finished tweaking git repo https://github.com/rrichardson/tokio-cookbook [INFO] tweaked toml for git repo https://github.com/rrichardson/tokio-cookbook written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/rrichardson/tokio-cookbook already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded proc-macro2 v1.0.3 [INFO] [stderr] Downloaded futures-join-macro-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded tokio-timer v0.3.0-alpha.4 [INFO] [stderr] Downloaded futures-io-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-util-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded proc-macro-hack v0.5.9 [INFO] [stderr] Downloaded tokio-net v0.2.0-alpha.4 [INFO] [stderr] Downloaded futures-executor-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded tokio-fs v0.2.0-alpha.4 [INFO] [stderr] Downloaded tokio-executor v0.2.0-alpha.4 [INFO] [stderr] Downloaded tokio-macros v0.2.0-alpha.4 [INFO] [stderr] Downloaded tracing-core v0.1.6 [INFO] [stderr] Downloaded futures-sink-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded tokio-io v0.2.0-alpha.4 [INFO] [stderr] Downloaded tokio v0.2.0-alpha.4 [INFO] [stderr] Downloaded futures-channel-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded tokio-codec v0.2.0-alpha.4 [INFO] [stderr] Downloaded rand v0.7.1 [INFO] [stderr] Downloaded futures-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-core-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded tracing v0.1.9 [INFO] [stderr] Downloaded tokio-sync v0.2.0-alpha.4 [INFO] [stderr] Downloaded futures-select-macro-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded tracing-attributes v0.1.3 [INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 053dbd486bfd831edd45da345e805b869e26435afe147725b92e8bbac9409c05 [INFO] running `Command { std: "docker" "start" "-a" "053dbd486bfd831edd45da345e805b869e26435afe147725b92e8bbac9409c05", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "053dbd486bfd831edd45da345e805b869e26435afe147725b92e8bbac9409c05", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "053dbd486bfd831edd45da345e805b869e26435afe147725b92e8bbac9409c05", kill_on_drop: false }` [INFO] [stdout] 053dbd486bfd831edd45da345e805b869e26435afe147725b92e8bbac9409c05 [INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 640ef8776c3d881904316e6e947e29328359491ca41d399787ab5cef942e43f5 [INFO] running `Command { std: "docker" "start" "-a" "640ef8776c3d881904316e6e947e29328359491ca41d399787ab5cef942e43f5", kill_on_drop: false }` [INFO] [stderr] Compiling cfg-if v0.1.9 [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling spin v0.5.2 [INFO] [stderr] Compiling proc-macro2 v1.0.3 [INFO] [stderr] Compiling syn v1.0.5 [INFO] [stderr] Compiling getrandom v0.1.12 [INFO] [stderr] Compiling futures-core-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling ppv-lite86 v0.2.5 [INFO] [stderr] Compiling pin-utils v0.1.0-alpha.4 [INFO] [stderr] Compiling proc-macro-nested v0.1.3 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling arrayvec v0.4.11 [INFO] [stderr] Compiling scopeguard v1.0.0 [INFO] [stderr] Compiling futures-io-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Compiling nodrop v0.1.13 [INFO] [stderr] Compiling smallvec v0.6.10 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling lock_api v0.3.1 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling futures-sink-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling crossbeam-utils v0.6.6 [INFO] [stderr] Compiling tracing-core v0.1.6 [INFO] [stderr] Compiling c2-chacha v0.2.2 [INFO] [stderr] Compiling futures-channel-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling crossbeam-channel v0.3.9 [INFO] [stderr] Compiling crossbeam-queue v0.1.2 [INFO] [stderr] Compiling memoffset v0.5.1 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Compiling iovec v0.1.2 [INFO] [stderr] Compiling num_cpus v1.10.1 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling mio v0.6.19 [INFO] [stderr] Compiling crossbeam-epoch v0.7.2 [INFO] [stderr] Compiling rand_chacha v0.2.1 [INFO] [stderr] Compiling tokio-io v0.2.0-alpha.4 [INFO] [stderr] Compiling rand v0.7.1 [INFO] [stderr] Compiling crossbeam-deque v0.7.1 [INFO] [stderr] Compiling tokio-codec v0.2.0-alpha.4 [INFO] [stderr] Compiling mio-uds v0.6.7 [INFO] [stderr] Compiling proc-macro-hack v0.5.9 [INFO] [stderr] Compiling tracing-attributes v0.1.3 [INFO] [stderr] Compiling tokio-macros v0.2.0-alpha.4 [INFO] [stderr] Compiling futures-select-macro-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling futures-join-macro-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling tracing v0.1.9 [INFO] [stderr] Compiling futures-util-preview v0.3.0-alpha.18 [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-util-preview-0.3.0-alpha.18/src/lib.rs:4:38 [INFO] [stdout] | [INFO] [stdout] 4 | #![cfg_attr(feature = "async-await", feature(async_await))] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `futures-util-preview` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `Command { std: "docker" "inspect" "640ef8776c3d881904316e6e947e29328359491ca41d399787ab5cef942e43f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "640ef8776c3d881904316e6e947e29328359491ca41d399787ab5cef942e43f5", kill_on_drop: false }` [INFO] [stdout] 640ef8776c3d881904316e6e947e29328359491ca41d399787ab5cef942e43f5