[INFO] fetching crate async-stm 0.1.1...
[INFO] testing async-stm-0.1.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate async-stm 0.1.1 into /workspace/builds/worker-17/source
[INFO] validating manifest of crates.io crate async-stm 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] removed /workspace/builds/worker-17/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate async-stm 0.1.1
[INFO] finished tweaking crates.io crate async-stm 0.1.1
[INFO] tweaked toml for crates.io crate async-stm 0.1.1 written to /workspace/builds/worker-17/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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] 902943389af4835fabfbf01230b2684d0fee96f2aeb6deeb3bbb4f91b909c259
[INFO] running `Command { std: "docker" "start" "-a" "902943389af4835fabfbf01230b2684d0fee96f2aeb6deeb3bbb4f91b909c259", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "902943389af4835fabfbf01230b2684d0fee96f2aeb6deeb3bbb4f91b909c259", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "902943389af4835fabfbf01230b2684d0fee96f2aeb6deeb3bbb4f91b909c259", kill_on_drop: false }`
[INFO] [stdout] 902943389af4835fabfbf01230b2684d0fee96f2aeb6deeb3bbb4f91b909c259
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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] a1258a45a22b66cdf0e8d2b5475136d2de6d99168c7e7aa46870feafbbdc8d35
[INFO] running `Command { std: "docker" "start" "-a" "a1258a45a22b66cdf0e8d2b5475136d2de6d99168c7e7aa46870feafbbdc8d35", kill_on_drop: false }`
[INFO] [stderr]    Compiling parking_lot_core v0.9.2
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling parking_lot v0.12.0
[INFO] [stderr]    Compiling async-stm 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:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `async-stm` due to 2 previous errors
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a1258a45a22b66cdf0e8d2b5475136d2de6d99168c7e7aa46870feafbbdc8d35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1258a45a22b66cdf0e8d2b5475136d2de6d99168c7e7aa46870feafbbdc8d35", kill_on_drop: false }`
[INFO] [stdout] a1258a45a22b66cdf0e8d2b5475136d2de6d99168c7e7aa46870feafbbdc8d35