Aug 31 23:27:31.815 INFO checking knx_examples_rs-0.0.2 against try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b for pr-53578
Aug 31 23:27:31.815 INFO running: cargo +a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b-alt check --frozen --all --all-targets
Aug 31 23:27:31.815 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53578/try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-3/try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b:/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 +a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 31 23:27:31.964 INFO blam! ed5ae54c229591aa9a15ee0d51404d86c4b2536355a0e5c133abe1d1ed00f1f1
Aug 31 23:27:31.965 INFO running `"docker" "start" "-a" "ed5ae54c229591aa9a15ee0d51404d86c4b2536355a0e5c133abe1d1ed00f1f1"`
Aug 31 23:27:32.997 INFO kablam!     Checking knx_rs v0.0.2
Aug 31 23:27:32.997 INFO kablam!     Checking log4rs v0.8.0
Aug 31 23:27:34.253 INFO kablam!     Checking knx_ets_rs v0.0.2
Aug 31 23:27:34.515 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)
Aug 31 23:27:34.515 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/file.rs:25:3
Aug 31 23:27:34.515 INFO kablam!    |
Aug 31 23:27:34.515 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Aug 31 23:27:34.515 INFO kablam!    |   ^^^^^
Aug 31 23:27:34.515 INFO kablam!    |
Aug 31 23:27:34.515 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 31 23:27:34.515 INFO kablam! 
Aug 31 23:27:34.516 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)
Aug 31 23:27:34.516 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/console.rs:24:3
Aug 31 23:27:34.516 INFO kablam!    |
Aug 31 23:27:34.516 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 31 23:27:34.516 INFO kablam!    |   ^^^^^
Aug 31 23:27:34.516 INFO kablam!    |
Aug 31 23:27:34.516 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 31 23:27:34.516 INFO kablam! 
Aug 31 23:27:34.516 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)
Aug 31 23:27:34.516 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/policy/compound/roll/delete.rs:16:3
Aug 31 23:27:34.516 INFO kablam!    |
Aug 31 23:27:34.516 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Aug 31 23:27:34.516 INFO kablam!    |   ^^^^^
Aug 31 23:27:34.516 INFO kablam!    |
Aug 31 23:27:34.516 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 31 23:27:34.516 INFO kablam! 
Aug 31 23:27:34.516 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)
Aug 31 23:27:34.516 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
Aug 31 23:27:34.516 INFO kablam!    |
Aug 31 23:27:34.516 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Aug 31 23:27:34.517 INFO kablam!    |   ^^^^^
Aug 31 23:27:34.517 INFO kablam!    |
Aug 31 23:27:34.517 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 31 23:27:34.517 INFO kablam! 
Aug 31 23:27:34.517 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)
Aug 31 23:27:34.517 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/policy/compound/trigger/size.rs:21:3
Aug 31 23:27:34.517 INFO kablam!    |
Aug 31 23:27:34.517 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Aug 31 23:27:34.517 INFO kablam!    |   ^^^^^
Aug 31 23:27:34.517 INFO kablam!    |
Aug 31 23:27:34.517 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 31 23:27:34.517 INFO kablam! 
Aug 31 23:27:34.517 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)
Aug 31 23:27:34.517 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/policy/compound/mod.rs:24:3
Aug 31 23:27:34.517 INFO kablam!    |
Aug 31 23:27:34.517 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 31 23:27:34.517 INFO kablam!    |   ^^^^^
Aug 31 23:27:34.517 INFO kablam!    |
Aug 31 23:27:34.517 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 31 23:27:34.517 INFO kablam! 
Aug 31 23:27:34.517 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)
Aug 31 23:27:34.517 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/mod.rs:46:3
Aug 31 23:27:34.517 INFO kablam!    |
Aug 31 23:27:34.517 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Aug 31 23:27:34.517 INFO kablam!    |   ^^^^^
Aug 31 23:27:34.518 INFO kablam!    |
Aug 31 23:27:34.518 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 31 23:27:34.518 INFO kablam! 
Aug 31 23:27:34.635 INFO kablam! error: aborting due to 7 previous errors
Aug 31 23:27:34.636 INFO kablam! 
Aug 31 23:27:34.636 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Aug 31 23:27:34.645 INFO kablam! error: Could not compile `log4rs`.
Aug 31 23:27:34.645 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 31 23:27:35.262 INFO kablam! error: build failed
Aug 31 23:27:35.263 INFO kablam! su: No module specific data is present
Aug 31 23:27:35.791 INFO running `"docker" "rm" "-f" "ed5ae54c229591aa9a15ee0d51404d86c4b2536355a0e5c133abe1d1ed00f1f1"`
Aug 31 23:27:35.903 INFO blam! ed5ae54c229591aa9a15ee0d51404d86c4b2536355a0e5c133abe1d1ed00f1f1