Sep 02 10:15:28.552 INFO checking iot_center-0.0.1 against try#952c7dbfa2628309f557b367929ffc17af20b332 for pr-53851 Sep 02 10:15:28.553 INFO running: cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets Sep 02 10:15:28.553 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53851/try#952c7dbfa2628309f557b367929ffc17af20b332:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-1/try#952c7dbfa2628309f557b367929ffc17af20b332:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"` Sep 02 10:15:28.746 INFO blam! 22623b5f5f8c6352dafb5c4bc08ff432d4326fa55759cf097060b5caaa6c0908 Sep 02 10:15:28.748 INFO running `"docker" "start" "-a" "22623b5f5f8c6352dafb5c4bc08ff432d4326fa55759cf097060b5caaa6c0908"` Sep 02 10:15:29.532 INFO kablam! Checking log4rs v0.8.0 Sep 02 10:15:29.532 INFO kablam! Checking mqtt-protocol v0.3.1 Sep 02 10:15:31.428 INFO kablam! error[E0658]: The attribute `serde` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642) Sep 02 10:15:31.428 INFO kablam! --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/file.rs:25:3 Sep 02 10:15:31.428 INFO kablam! | Sep 02 10:15:31.428 INFO kablam! 25 | #[serde(deny_unknown_fields)] Sep 02 10:15:31.428 INFO kablam! | ^^^^^ Sep 02 10:15:31.429 INFO kablam! | Sep 02 10:15:31.429 INFO kablam! = help: add #![feature(custom_attribute)] to the crate attributes to enable Sep 02 10:15:31.429 INFO kablam! Sep 02 10:15:31.429 INFO kablam! error[E0658]: The attribute `serde` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642) Sep 02 10:15:31.429 INFO kablam! --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/console.rs:24:3 Sep 02 10:15:31.429 INFO kablam! | Sep 02 10:15:31.429 INFO kablam! 24 | #[serde(deny_unknown_fields)] Sep 02 10:15:31.429 INFO kablam! | ^^^^^ Sep 02 10:15:31.429 INFO kablam! | Sep 02 10:15:31.429 INFO kablam! = help: add #![feature(custom_attribute)] to the crate attributes to enable Sep 02 10:15:31.429 INFO kablam! Sep 02 10:15:31.429 INFO kablam! error[E0658]: The attribute `serde` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642) Sep 02 10:15:31.429 INFO kablam! --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/policy/compound/roll/delete.rs:16:3 Sep 02 10:15:31.429 INFO kablam! | Sep 02 10:15:31.429 INFO kablam! 16 | #[serde(deny_unknown_fields)] Sep 02 10:15:31.429 INFO kablam! | ^^^^^ Sep 02 10:15:31.429 INFO kablam! | Sep 02 10:15:31.430 INFO kablam! = help: add #![feature(custom_attribute)] to the crate attributes to enable Sep 02 10:15:31.430 INFO kablam! Sep 02 10:15:31.430 INFO kablam! error[E0658]: The attribute `serde` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642) Sep 02 10:15:31.430 INFO kablam! --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/policy/compound/roll/fixed_window.rs:17:3 Sep 02 10:15:31.430 INFO kablam! | Sep 02 10:15:31.430 INFO kablam! 17 | #[serde(deny_unknown_fields)] Sep 02 10:15:31.430 INFO kablam! | ^^^^^ Sep 02 10:15:31.431 INFO kablam! | Sep 02 10:15:31.431 INFO kablam! = help: add #![feature(custom_attribute)] to the crate attributes to enable Sep 02 10:15:31.431 INFO kablam! Sep 02 10:15:31.431 INFO kablam! error[E0658]: The attribute `serde` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642) Sep 02 10:15:31.431 INFO kablam! --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/policy/compound/trigger/size.rs:21:3 Sep 02 10:15:31.431 INFO kablam! | Sep 02 10:15:31.431 INFO kablam! 21 | #[serde(deny_unknown_fields)] Sep 02 10:15:31.431 INFO kablam! | ^^^^^ Sep 02 10:15:31.431 INFO kablam! | Sep 02 10:15:31.431 INFO kablam! = help: add #![feature(custom_attribute)] to the crate attributes to enable Sep 02 10:15:31.431 INFO kablam! Sep 02 10:15:31.431 INFO kablam! error[E0658]: The attribute `serde` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642) Sep 02 10:15:31.431 INFO kablam! --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/policy/compound/mod.rs:24:3 Sep 02 10:15:31.431 INFO kablam! | Sep 02 10:15:31.431 INFO kablam! 24 | #[serde(deny_unknown_fields)] Sep 02 10:15:31.431 INFO kablam! | ^^^^^ Sep 02 10:15:31.431 INFO kablam! | Sep 02 10:15:31.431 INFO kablam! = help: add #![feature(custom_attribute)] to the crate attributes to enable Sep 02 10:15:31.431 INFO kablam! Sep 02 10:15:31.431 INFO kablam! error[E0658]: The attribute `serde` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642) Sep 02 10:15:31.431 INFO kablam! --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/mod.rs:46:3 Sep 02 10:15:31.432 INFO kablam! | Sep 02 10:15:31.432 INFO kablam! 46 | #[serde(deny_unknown_fields)] Sep 02 10:15:31.432 INFO kablam! | ^^^^^ Sep 02 10:15:31.432 INFO kablam! | Sep 02 10:15:31.432 INFO kablam! = help: add #![feature(custom_attribute)] to the crate attributes to enable Sep 02 10:15:31.432 INFO kablam! Sep 02 10:15:31.555 INFO kablam! error: aborting due to 7 previous errors Sep 02 10:15:31.555 INFO kablam! Sep 02 10:15:31.555 INFO kablam! For more information about this error, try `rustc --explain E0658`. Sep 02 10:15:31.564 INFO kablam! error: Could not compile `log4rs`. Sep 02 10:15:31.566 INFO kablam! warning: build failed, waiting for other jobs to finish... Sep 02 10:15:33.293 INFO kablam! error: build failed Sep 02 10:15:33.295 INFO kablam! su: No module specific data is present Sep 02 10:15:33.732 INFO running `"docker" "rm" "-f" "22623b5f5f8c6352dafb5c4bc08ff432d4326fa55759cf097060b5caaa6c0908"` Sep 02 10:15:33.838 INFO blam! 22623b5f5f8c6352dafb5c4bc08ff432d4326fa55759cf097060b5caaa6c0908