[INFO] fetching crate cc-traits 0.8.0...
[INFO] testing cc-traits-0.8.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate cc-traits 0.8.0 into /workspace/builds/worker-101/source
[INFO] validating manifest of crates.io crate cc-traits 0.8.0 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 cc-traits 0.8.0
[INFO] finished tweaking crates.io crate cc-traits 0.8.0
[INFO] tweaked toml for crates.io crate cc-traits 0.8.0 written to /workspace/builds/worker-101/source/Cargo.toml
[INFO] crate crates.io crate cc-traits 0.8.0 already has a lockfile, it will not be regenerated
[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 ijson v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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] a85e4db6e4752d130511c93ee9d79a123b2761451bad1b366fc51192a828b104
[INFO] running `Command { std: "docker" "start" "-a" "a85e4db6e4752d130511c93ee9d79a123b2761451bad1b366fc51192a828b104", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a85e4db6e4752d130511c93ee9d79a123b2761451bad1b366fc51192a828b104", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a85e4db6e4752d130511c93ee9d79a123b2761451bad1b366fc51192a828b104", kill_on_drop: false }`
[INFO] [stdout] a85e4db6e4752d130511c93ee9d79a123b2761451bad1b366fc51192a828b104
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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] dfbb4a64abd8b5dd9ca12d3572e5d210d73cca5aca5a8a7359d86e457b661abd
[INFO] running `Command { std: "docker" "start" "-a" "dfbb4a64abd8b5dd9ca12d3572e5d210d73cca5aca5a8a7359d86e457b661abd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cc-traits v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:107:1
[INFO] [stdout]     |
[INFO] [stdout] 107 | #![feature(generic_associated_types)]
[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 `cc-traits` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "dfbb4a64abd8b5dd9ca12d3572e5d210d73cca5aca5a8a7359d86e457b661abd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfbb4a64abd8b5dd9ca12d3572e5d210d73cca5aca5a8a7359d86e457b661abd", kill_on_drop: false }`
[INFO] [stdout] dfbb4a64abd8b5dd9ca12d3572e5d210d73cca5aca5a8a7359d86e457b661abd