[INFO] fetching crate rsquery 0.1.1...
[INFO] testing rsquery-0.1.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate rsquery 0.1.1 into /workspace/builds/worker-16/source
[INFO] validating manifest of crates.io crate rsquery 0.1.1 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 crates.io crate rsquery 0.1.1
[INFO] finished tweaking crates.io crate rsquery 0.1.1
[INFO] tweaked toml for crates.io crate rsquery 0.1.1 written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hex v0.4.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e00f99d7e5307c5cd0b5966a2bf9cb1ff1e0e001e570c09a560fdb24ade344f
[INFO] running `Command { std: "docker" "start" "-a" "6e00f99d7e5307c5cd0b5966a2bf9cb1ff1e0e001e570c09a560fdb24ade344f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e00f99d7e5307c5cd0b5966a2bf9cb1ff1e0e001e570c09a560fdb24ade344f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e00f99d7e5307c5cd0b5966a2bf9cb1ff1e0e001e570c09a560fdb24ade344f", kill_on_drop: false }`
[INFO] [stdout] 6e00f99d7e5307c5cd0b5966a2bf9cb1ff1e0e001e570c09a560fdb24ade344f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de8b10d51aed940157eb316a489c2e6d06e08c15d6e1ecfd0e8487d364ee8350
[INFO] running `Command { std: "docker" "start" "-a" "de8b10d51aed940157eb316a489c2e6d06e08c15d6e1ecfd0e8487d364ee8350", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling parking_lot v0.12.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling actix-macros v0.2.3
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling actix-rt v2.7.0
[INFO] [stderr]    Compiling rsquery v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.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 `rsquery` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "de8b10d51aed940157eb316a489c2e6d06e08c15d6e1ecfd0e8487d364ee8350", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de8b10d51aed940157eb316a489c2e6d06e08c15d6e1ecfd0e8487d364ee8350", kill_on_drop: false }`
[INFO] [stdout] de8b10d51aed940157eb316a489c2e6d06e08c15d6e1ecfd0e8487d364ee8350