Aug 30 14:11:24.975 INFO checking httpbox-0.1.0 against master#545f22340f72ee0efaf6463efb43a2840e3d35db for pr-53699
Aug 30 14:11:24.975 INFO running: cargo +545f22340f72ee0efaf6463efb43a2840e3d35db-alt check --frozen --all --all-targets
Aug 30 14:11:24.975 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53699/master#545f22340f72ee0efaf6463efb43a2840e3d35db:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53699/worker-1/master#545f22340f72ee0efaf6463efb43a2840e3d35db:/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 +545f22340f72ee0efaf6463efb43a2840e3d35db-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 14:11:25.226 INFO blam! 0bdfc03065c242ab0b11e61790d1142f0a54be4e61769c49cd900775a846e4b5
Aug 30 14:11:25.228 INFO running `"docker" "start" "-a" "0bdfc03065c242ab0b11e61790d1142f0a54be4e61769c49cd900775a846e4b5"`
Aug 30 14:11:26.497 INFO kablam!     Checking log4rs v0.8.0
Aug 30 14:11:26.506 INFO kablam!     Checking tokio-core v0.1.17
Aug 30 14:11:28.330 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 30 14:11:28.330 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/file.rs:25:3
Aug 30 14:11:28.330 INFO kablam!    |
Aug 30 14:11:28.330 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Aug 30 14:11:28.330 INFO kablam!    |   ^^^^^
Aug 30 14:11:28.330 INFO kablam!    |
Aug 30 14:11:28.330 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 14:11:28.330 INFO kablam! 
Aug 30 14:11:28.330 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 30 14:11:28.330 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/console.rs:24:3
Aug 30 14:11:28.330 INFO kablam!    |
Aug 30 14:11:28.331 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 30 14:11:28.331 INFO kablam!    |   ^^^^^
Aug 30 14:11:28.331 INFO kablam!    |
Aug 30 14:11:28.331 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 14:11:28.331 INFO kablam! 
Aug 30 14:11:28.331 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 30 14:11:28.331 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 30 14:11:28.331 INFO kablam!    |
Aug 30 14:11:28.331 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Aug 30 14:11:28.331 INFO kablam!    |   ^^^^^
Aug 30 14:11:28.331 INFO kablam!    |
Aug 30 14:11:28.331 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 14:11:28.331 INFO kablam! 
Aug 30 14:11:28.331 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 30 14:11:28.331 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 30 14:11:28.331 INFO kablam!    |
Aug 30 14:11:28.331 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Aug 30 14:11:28.331 INFO kablam!    |   ^^^^^
Aug 30 14:11:28.331 INFO kablam!    |
Aug 30 14:11:28.331 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 14:11:28.331 INFO kablam! 
Aug 30 14:11:28.332 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 30 14:11:28.332 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 30 14:11:28.332 INFO kablam!    |
Aug 30 14:11:28.332 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Aug 30 14:11:28.332 INFO kablam!    |   ^^^^^
Aug 30 14:11:28.332 INFO kablam!    |
Aug 30 14:11:28.332 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 14:11:28.332 INFO kablam! 
Aug 30 14:11:28.332 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 30 14:11:28.332 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/policy/compound/mod.rs:24:3
Aug 30 14:11:28.332 INFO kablam!    |
Aug 30 14:11:28.332 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 30 14:11:28.332 INFO kablam!    |   ^^^^^
Aug 30 14:11:28.332 INFO kablam!    |
Aug 30 14:11:28.332 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 14:11:28.332 INFO kablam! 
Aug 30 14:11:28.332 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 30 14:11:28.332 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/mod.rs:46:3
Aug 30 14:11:28.332 INFO kablam!    |
Aug 30 14:11:28.332 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Aug 30 14:11:28.332 INFO kablam!    |   ^^^^^
Aug 30 14:11:28.332 INFO kablam!    |
Aug 30 14:11:28.333 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 14:11:28.333 INFO kablam! 
Aug 30 14:11:28.399 INFO kablam! error: aborting due to 7 previous errors
Aug 30 14:11:28.400 INFO kablam! 
Aug 30 14:11:28.400 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Aug 30 14:11:28.406 INFO kablam! error: Could not compile `log4rs`.
Aug 30 14:11:28.406 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 30 14:11:30.537 INFO kablam! error: build failed
Aug 30 14:11:30.538 INFO kablam! su: No module specific data is present
Aug 30 14:11:30.994 INFO running `"docker" "rm" "-f" "0bdfc03065c242ab0b11e61790d1142f0a54be4e61769c49cd900775a846e4b5"`
Aug 30 14:11:31.103 INFO blam! 0bdfc03065c242ab0b11e61790d1142f0a54be4e61769c49cd900775a846e4b5