Aug 30 00:36:03.489 INFO checking toucHNews-0.4.0 against try#2d477f9981361618ac78253c28051a66b6cea125 for pr-53707
Aug 30 00:36:03.489 INFO running: cargo +2d477f9981361618ac78253c28051a66b6cea125-alt check --frozen --all --all-targets
Aug 30 00:36:03.489 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53707/try#2d477f9981361618ac78253c28051a66b6cea125:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53707/worker-2/try#2d477f9981361618ac78253c28051a66b6cea125:/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 +2d477f9981361618ac78253c28051a66b6cea125-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 00:36:03.639 INFO blam! f7ea0638a0a992ace7a24c6798ff1c19c791746289d6ac2f80dfd57d52693856
Aug 30 00:36:03.640 INFO running `"docker" "start" "-a" "f7ea0638a0a992ace7a24c6798ff1c19c791746289d6ac2f80dfd57d52693856"`
Aug 30 00:36:04.751 INFO kablam!    Compiling rubrail v0.7.0
Aug 30 00:36:04.755 INFO kablam!     Checking log v0.4.4
Aug 30 00:36:04.756 INFO kablam!     Checking serde-value v0.5.2
Aug 30 00:36:05.578 INFO kablam!     Checking mio v0.6.15
Aug 30 00:36:05.579 INFO kablam!     Checking tokio-io v0.1.8
Aug 30 00:36:05.579 INFO kablam!     Checking tokio-threadpool v0.1.6
Aug 30 00:36:05.580 INFO kablam!     Checking log v0.3.9
Aug 30 00:36:05.580 INFO kablam!     Checking want v0.0.4
Aug 30 00:36:06.469 INFO kablam!     Checking log4rs v0.8.0
Aug 30 00:36:08.455 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 00:36:08.455 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/file.rs:25:3
Aug 30 00:36:08.455 INFO kablam!    |
Aug 30 00:36:08.455 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Aug 30 00:36:08.455 INFO kablam!    |   ^^^^^
Aug 30 00:36:08.464 INFO kablam!    |
Aug 30 00:36:08.464 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 00:36:08.464 INFO kablam! 
Aug 30 00:36:08.465 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 00:36:08.465 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/console.rs:24:3
Aug 30 00:36:08.465 INFO kablam!    |
Aug 30 00:36:08.465 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 30 00:36:08.465 INFO kablam!    |   ^^^^^
Aug 30 00:36:08.465 INFO kablam!    |
Aug 30 00:36:08.465 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 00:36:08.465 INFO kablam! 
Aug 30 00:36:08.465 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 00:36:08.465 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 00:36:08.465 INFO kablam!    |
Aug 30 00:36:08.466 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Aug 30 00:36:08.466 INFO kablam!    |   ^^^^^
Aug 30 00:36:08.466 INFO kablam!    |
Aug 30 00:36:08.466 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 00:36:08.466 INFO kablam! 
Aug 30 00:36:08.466 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 00:36:08.466 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 00:36:08.466 INFO kablam!    |
Aug 30 00:36:08.466 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Aug 30 00:36:08.466 INFO kablam!    |   ^^^^^
Aug 30 00:36:08.466 INFO kablam!    |
Aug 30 00:36:08.466 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 00:36:08.466 INFO kablam! 
Aug 30 00:36:08.466 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 00:36:08.466 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 00:36:08.466 INFO kablam!    |
Aug 30 00:36:08.467 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Aug 30 00:36:08.467 INFO kablam!    |   ^^^^^
Aug 30 00:36:08.467 INFO kablam!    |
Aug 30 00:36:08.467 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 00:36:08.467 INFO kablam! 
Aug 30 00:36:08.467 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 00:36:08.467 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 00:36:08.467 INFO kablam!    |
Aug 30 00:36:08.467 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 30 00:36:08.467 INFO kablam!    |   ^^^^^
Aug 30 00:36:08.467 INFO kablam!    |
Aug 30 00:36:08.467 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 00:36:08.467 INFO kablam! 
Aug 30 00:36:08.467 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 00:36:08.467 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/mod.rs:46:3
Aug 30 00:36:08.467 INFO kablam!    |
Aug 30 00:36:08.467 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Aug 30 00:36:08.467 INFO kablam!    |   ^^^^^
Aug 30 00:36:08.467 INFO kablam!    |
Aug 30 00:36:08.467 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 00:36:08.467 INFO kablam! 
Aug 30 00:36:08.733 INFO kablam! error: aborting due to 7 previous errors
Aug 30 00:36:08.733 INFO kablam! 
Aug 30 00:36:08.733 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Aug 30 00:36:08.745 INFO kablam! error: Could not compile `log4rs`.
Aug 30 00:36:08.746 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 30 00:36:10.505 INFO kablam! error: build failed
Aug 30 00:36:10.507 INFO kablam! su: No module specific data is present
Aug 30 00:36:11.045 INFO running `"docker" "rm" "-f" "f7ea0638a0a992ace7a24c6798ff1c19c791746289d6ac2f80dfd57d52693856"`
Aug 30 00:36:11.190 INFO blam! f7ea0638a0a992ace7a24c6798ff1c19c791746289d6ac2f80dfd57d52693856