[INFO] cloning repository https://github.com/nasa-playground/async-chat [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nasa-playground/async-chat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnasa-playground%2Fasync-chat", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnasa-playground%2Fasync-chat'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d44d82744742bb42f72ec3d57f27243eabd52e14 [INFO] testing nasa-playground/async-chat against 1.60.0 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnasa-playground%2Fasync-chat" "/workspace/builds/worker-13/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nasa-playground/async-chat on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [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-13/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 `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded kv-log-macro v1.0.4 [INFO] [stderr] Downloaded futures-timer v0.4.0 [INFO] [stderr] Downloaded async-task v1.0.0 [INFO] [stderr] Downloaded futures-executor-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-join-macro-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded proc-macro-hack v0.5.9 [INFO] [stderr] Downloaded futures-select-macro-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-sink-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-channel-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-io-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded async-macros v1.0.0 [INFO] [stderr] Downloaded futures-core-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-util-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded async-std v0.99.6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] c74570f04bf68032bf07a6b74d2f735dbfcd27f5bd7282dae23c1a57e9f2fc94 [INFO] running `Command { std: "docker" "start" "-a" "c74570f04bf68032bf07a6b74d2f735dbfcd27f5bd7282dae23c1a57e9f2fc94", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c74570f04bf68032bf07a6b74d2f735dbfcd27f5bd7282dae23c1a57e9f2fc94", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c74570f04bf68032bf07a6b74d2f735dbfcd27f5bd7282dae23c1a57e9f2fc94", kill_on_drop: false }` [INFO] [stdout] c74570f04bf68032bf07a6b74d2f735dbfcd27f5bd7282dae23c1a57e9f2fc94 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6b09029ecbe89cbc8309cfa381694b2d1397cd0efb2effa068986eb2429bda6f [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "6b09029ecbe89cbc8309cfa381694b2d1397cd0efb2effa068986eb2429bda6f", kill_on_drop: false }` [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 proc-macro2 v1.0.4 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling getrandom v0.1.12 [INFO] [stderr] Compiling syn v1.0.5 [INFO] [stderr] Compiling ppv-lite86 v0.2.5 [INFO] [stderr] Compiling futures-core-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling proc-macro-nested v0.1.3 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling pin-utils v0.1.0-alpha.4 [INFO] [stderr] Compiling cc v1.0.45 [INFO] [stderr] Compiling futures-io-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling arrayvec v0.4.11 [INFO] [stderr] Compiling nodrop v0.1.13 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Compiling scopeguard v1.0.0 [INFO] [stderr] Compiling rustc-demangle v0.1.16 [INFO] [stderr] Compiling regex-syntax v0.6.12 [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 humantime v1.3.0 [INFO] [stderr] Compiling c2-chacha v0.2.2 [INFO] [stderr] Compiling memoffset v0.5.1 [INFO] [stderr] Compiling futures-channel-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling crossbeam-channel v0.3.9 [INFO] [stderr] Compiling async-task v1.0.0 [INFO] [stderr] Compiling kv-log-macro v1.0.4 [INFO] [stderr] Compiling aho-corasick v0.7.6 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Compiling backtrace-sys v0.1.31 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling crossbeam-epoch v0.7.2 [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 atty v0.2.13 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling crossbeam-deque v0.7.1 [INFO] [stderr] Compiling mio v0.6.19 [INFO] [stderr] Compiling rand_chacha v0.2.1 [INFO] [stderr] Compiling rand v0.7.2 [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 proc-macro-hack v0.5.9 [INFO] [stderr] Compiling env_logger v0.6.2 [INFO] [stderr] Compiling synstructure v0.10.2 [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 futures-util-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling failure v0.1.5 [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable 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] | ^^^^^^^^^^^^^^^^^^^^ help: remove the attribute [INFO] [stdout] | [INFO] [stdout] = help: the feature `async_await` has been stable since 1.39.0 and no longer requires an attribute to enable [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` due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "6b09029ecbe89cbc8309cfa381694b2d1397cd0efb2effa068986eb2429bda6f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6b09029ecbe89cbc8309cfa381694b2d1397cd0efb2effa068986eb2429bda6f", kill_on_drop: false }` [INFO] [stdout] 6b09029ecbe89cbc8309cfa381694b2d1397cd0efb2effa068986eb2429bda6f