[INFO] cloning repository https://github.com/andysalerno/rust_async_example [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andysalerno/rust_async_example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandysalerno%2Frust_async_example", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandysalerno%2Frust_async_example'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8ccf54bf7b42f342156c58c0746eba86d8ce15fc [INFO] testing andysalerno/rust_async_example 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%2Fandysalerno%2Frust_async_example" "/workspace/builds/worker-5/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/andysalerno/rust_async_example 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/andysalerno/rust_async_example [INFO] finished tweaking git repo https://github.com/andysalerno/rust_async_example [INFO] tweaked toml for git repo https://github.com/andysalerno/rust_async_example written to /workspace/builds/worker-5/source/Cargo.toml [INFO] crate git repo https://github.com/andysalerno/rust_async_example 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 futures-preview v0.3.0-alpha.17 [INFO] [stderr] Downloaded futures-channel-preview v0.3.0-alpha.17 [INFO] [stderr] Downloaded wasm-bindgen-futures v0.3.25 [INFO] [stderr] Downloaded js-sys v0.3.25 [INFO] [stderr] Downloaded autocfg v0.1.5 [INFO] [stderr] Downloaded futures-executor-preview v0.3.0-alpha.17 [INFO] [stderr] Downloaded syn v0.15.40 [INFO] [stderr] Downloaded wasm-bindgen-shared v0.2.48 [INFO] [stderr] Downloaded bumpalo v2.5.0 [INFO] [stderr] Downloaded futures-util-preview v0.3.0-alpha.17 [INFO] [stderr] Downloaded futures-timer v0.2.1 [INFO] [stderr] Downloaded juliex v0.3.0-alpha.7 [INFO] [stderr] Downloaded async-datagram v3.0.0 [INFO] [stderr] Downloaded wasm-bindgen-backend v0.2.48 [INFO] [stderr] Downloaded wasm-bindgen-macro-support v0.2.48 [INFO] [stderr] Downloaded wasm-bindgen v0.2.48 [INFO] [stderr] Downloaded runtime-attributes v0.3.0-alpha.5 [INFO] [stderr] Downloaded async-datagram v2.2.0 [INFO] [stderr] Downloaded async-ready v3.0.0 [INFO] [stderr] Downloaded futures-io-preview v0.3.0-alpha.17 [INFO] [stderr] Downloaded wasm-bindgen-macro v0.2.48 [INFO] [stderr] Downloaded futures-sink-preview v0.3.0-alpha.17 [INFO] [stderr] Downloaded runtime v0.3.0-alpha.6 [INFO] [stderr] Downloaded runtime-raw v0.3.0-alpha.4 [INFO] [stderr] Downloaded runtime-native v0.3.0-alpha.5 [INFO] [stderr] Downloaded futures-core-preview v0.3.0-alpha.17 [INFO] [stderr] Downloaded romio v0.3.0-alpha.9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/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] 129a567789198c0f6063593e05b165d70a5fe6d4f8df7e79c9eb2e12585af0a7 [INFO] running `Command { std: "docker" "start" "-a" "129a567789198c0f6063593e05b165d70a5fe6d4f8df7e79c9eb2e12585af0a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "129a567789198c0f6063593e05b165d70a5fe6d4f8df7e79c9eb2e12585af0a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "129a567789198c0f6063593e05b165d70a5fe6d4f8df7e79c9eb2e12585af0a7", kill_on_drop: false }` [INFO] [stdout] 129a567789198c0f6063593e05b165d70a5fe6d4f8df7e79c9eb2e12585af0a7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 899b9f804e553d416b0e0bec45541551898dfccf10dd6e89f15c2507ae35a879 [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" "899b9f804e553d416b0e0bec45541551898dfccf10dd6e89f15c2507ae35a879", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.60 [INFO] [stderr] Compiling spin v0.5.0 [INFO] [stderr] Compiling futures-core-preview v0.3.0-alpha.17 [INFO] [stderr] Compiling futures-io-preview v0.3.0-alpha.17 [INFO] [stderr] Compiling futures v0.1.28 [INFO] [stderr] Compiling smallvec v0.6.10 [INFO] [stderr] Compiling arrayvec v0.4.11 [INFO] [stderr] Compiling log v0.4.7 [INFO] [stderr] Compiling syn v0.15.40 [INFO] [stderr] Compiling async-ready v3.0.0 [INFO] [stderr] Compiling ppv-lite86 v0.2.5 [INFO] [stderr] Compiling async-datagram v3.0.0 [INFO] [stderr] Compiling async-datagram v2.2.0 [INFO] [stderr] Compiling rand_chacha v0.1.1 [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/async-datagram-2.2.0/src/lib.rs:43:1 [INFO] [stdout] | [INFO] [stdout] 43 | #![feature(futures_api)] [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 `async-datagram` [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 `Command { std: "docker" "inspect" "899b9f804e553d416b0e0bec45541551898dfccf10dd6e89f15c2507ae35a879", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "899b9f804e553d416b0e0bec45541551898dfccf10dd6e89f15c2507ae35a879", kill_on_drop: false }` [INFO] [stdout] 899b9f804e553d416b0e0bec45541551898dfccf10dd6e89f15c2507ae35a879