[INFO] fetching crate async_ip 0.1.0...
[INFO] testing async_ip-0.1.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate async_ip 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate async_ip 0.1.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async_ip 0.1.0
[INFO] finished tweaking crates.io crate async_ip 0.1.0
[INFO] tweaked toml for crates.io crate async_ip 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b971c5d1121000312a166051e43adcc33a0ab5283d0d0215d1cb5db85a3b009d
[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" "b971c5d1121000312a166051e43adcc33a0ab5283d0d0215d1cb5db85a3b009d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b971c5d1121000312a166051e43adcc33a0ab5283d0d0215d1cb5db85a3b009d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b971c5d1121000312a166051e43adcc33a0ab5283d0d0215d1cb5db85a3b009d", kill_on_drop: false }`
[INFO] [stdout] b971c5d1121000312a166051e43adcc33a0ab5283d0d0215d1cb5db85a3b009d
[INFO] running `Command { std: "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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "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] 3497ce2be34742cdef5909e3042575ebce08a052064c275c471308fae0f18f79
[INFO] running `Command { std: "docker" "start" "-a" "3497ce2be34742cdef5909e3042575ebce08a052064c275c471308fae0f18f79", kill_on_drop: false }`
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling openssl-sys v0.9.65
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling openssl v0.10.35
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]    Compiling tokio-tls v0.3.1
[INFO] [stderr]    Compiling h2 v0.2.7
[INFO] [stderr]    Compiling hyper v0.13.10
[INFO] [stderr]    Compiling hyper-tls v0.4.3
[INFO] [stderr]    Compiling reqwest v0.10.10
[INFO] [stderr]    Compiling async_ip v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.45s
[INFO] running `Command { std: "docker" "inspect" "3497ce2be34742cdef5909e3042575ebce08a052064c275c471308fae0f18f79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3497ce2be34742cdef5909e3042575ebce08a052064c275c471308fae0f18f79", kill_on_drop: false }`
[INFO] [stdout] 3497ce2be34742cdef5909e3042575ebce08a052064c275c471308fae0f18f79
[INFO] running `Command { std: "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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49327facb878486976ec688b5c2f1e76924d0ac37fc1ed02f9962d0bd83d5b95
[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" "49327facb878486976ec688b5c2f1e76924d0ac37fc1ed02f9962d0bd83d5b95", kill_on_drop: false }`
[INFO] [stderr]    Compiling async_ip v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> tests/primary.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_closure)]
[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_ip`
[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" "49327facb878486976ec688b5c2f1e76924d0ac37fc1ed02f9962d0bd83d5b95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49327facb878486976ec688b5c2f1e76924d0ac37fc1ed02f9962d0bd83d5b95", kill_on_drop: false }`
[INFO] [stdout] 49327facb878486976ec688b5c2f1e76924d0ac37fc1ed02f9962d0bd83d5b95
