[INFO] fetching crate swarm-bot-packets 0.2.0...
[INFO] testing swarm-bot-packets-0.2.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate swarm-bot-packets 0.2.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate swarm-bot-packets 0.2.0 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 swarm-bot-packets 0.2.0
[INFO] finished tweaking crates.io crate swarm-bot-packets 0.2.0
[INFO] tweaked toml for crates.io crate swarm-bot-packets 0.2.0 written to /workspace/builds/worker-5/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] [stderr]     Blocking waiting for file lock on package cache
[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 swarm-bot-packets-macro v0.1.2
[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" "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] f2c0ecad3badbc0142b197e43c260e860e3229e2e67a060a9956735ea8eeac5b
[INFO] running `Command { std: "docker" "start" "-a" "f2c0ecad3badbc0142b197e43c260e860e3229e2e67a060a9956735ea8eeac5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2c0ecad3badbc0142b197e43c260e860e3229e2e67a060a9956735ea8eeac5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2c0ecad3badbc0142b197e43c260e860e3229e2e67a060a9956735ea8eeac5b", kill_on_drop: false }`
[INFO] [stdout] f2c0ecad3badbc0142b197e43c260e860e3229e2e67a060a9956735ea8eeac5b
[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" "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] 0b69a4fe7e9951ae51317a57c34d3af30839ea5d90a76a0569bbf34ed255c6e5
[INFO] running `Command { std: "docker" "start" "-a" "0b69a4fe7e9951ae51317a57c34d3af30839ea5d90a76a0569bbf34ed255c6e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling mio v0.8.2
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling swarm-bot-packets-macro v0.1.2
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling swarm-bot-packets v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(cursor_remaining)]
[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 `swarm-bot-packets` 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" "0b69a4fe7e9951ae51317a57c34d3af30839ea5d90a76a0569bbf34ed255c6e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b69a4fe7e9951ae51317a57c34d3af30839ea5d90a76a0569bbf34ed255c6e5", kill_on_drop: false }`
[INFO] [stdout] 0b69a4fe7e9951ae51317a57c34d3af30839ea5d90a76a0569bbf34ed255c6e5