[INFO] fetching crate starlark_derive 0.7.0...
[INFO] testing starlark_derive-0.7.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate starlark_derive 0.7.0 into /workspace/builds/worker-26/source
[INFO] validating manifest of crates.io crate starlark_derive 0.7.0 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 starlark_derive 0.7.0
[INFO] finished tweaking crates.io crate starlark_derive 0.7.0
[INFO] tweaked toml for crates.io crate starlark_derive 0.7.0 written to /workspace/builds/worker-26/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]  Downloading crates ...
[INFO] [stderr]   Downloaded gazebo v0.6.0
[INFO] [stderr]   Downloaded gazebo_derive v0.6.0
[INFO] [stderr]   Downloaded gazebo_lint v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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] a72ede37bafcbed05fb7b73eba5f11c7abc96dbe517409109006b293be0891e7
[INFO] running `Command { std: "docker" "start" "-a" "a72ede37bafcbed05fb7b73eba5f11c7abc96dbe517409109006b293be0891e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a72ede37bafcbed05fb7b73eba5f11c7abc96dbe517409109006b293be0891e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a72ede37bafcbed05fb7b73eba5f11c7abc96dbe517409109006b293be0891e7", kill_on_drop: false }`
[INFO] [stdout] a72ede37bafcbed05fb7b73eba5f11c7abc96dbe517409109006b293be0891e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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] e1704156dcebca060900e60ce71f3685a29d2eff2c3b1c431989c415169cf7ee
[INFO] running `Command { std: "docker" "start" "-a" "e1704156dcebca060900e60ce71f3685a29d2eff2c3b1c431989c415169cf7ee", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling gazebo_derive v0.6.0
[INFO] [stderr]    Compiling gazebo v0.6.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gazebo-0.6.0/src/lib.rs:10:49
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![cfg_attr(feature = "str_pattern_extensions", feature(pattern))]
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gazebo-0.6.0/src/lib.rs:11:49
[INFO] [stdout]    |
[INFO] [stdout] 11 | #![cfg_attr(feature = "str_pattern_extensions", feature(associated_type_bounds))]
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gazebo` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "e1704156dcebca060900e60ce71f3685a29d2eff2c3b1c431989c415169cf7ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1704156dcebca060900e60ce71f3685a29d2eff2c3b1c431989c415169cf7ee", kill_on_drop: false }`
[INFO] [stdout] e1704156dcebca060900e60ce71f3685a29d2eff2c3b1c431989c415169cf7ee