Aug 30 14:37:16.113 INFO checking httpbox-0.1.0 against master#ede55518431154bc761f7b2438cce9078c162700 for pr-53707
Aug 30 14:37:16.113 INFO running: cargo +ede55518431154bc761f7b2438cce9078c162700-alt check --frozen --all --all-targets
Aug 30 14:37:16.113 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53707/master#ede55518431154bc761f7b2438cce9078c162700:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53707/worker-2/master#ede55518431154bc761f7b2438cce9078c162700:/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 +ede55518431154bc761f7b2438cce9078c162700-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 14:37:16.433 INFO blam! a717da5557c8a177e4b44f3115be067630c09130d97af6bc0e8cd6a9377f8777
Aug 30 14:37:16.433 INFO running `"docker" "start" "-a" "a717da5557c8a177e4b44f3115be067630c09130d97af6bc0e8cd6a9377f8777"`
Aug 30 14:37:17.715 INFO kablam!     Checking log4rs v0.8.0
Aug 30 14:37:17.716 INFO kablam!     Checking hyper v0.11.27
Aug 30 14:37:19.857 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 14:37:19.859 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/file.rs:25:3
Aug 30 14:37:19.859 INFO kablam!    |
Aug 30 14:37:19.859 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Aug 30 14:37:19.859 INFO kablam!    |   ^^^^^
Aug 30 14:37:19.859 INFO kablam!    |
Aug 30 14:37:19.859 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 14:37:19.859 INFO kablam! 
Aug 30 14:37:19.859 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 14:37:19.859 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/console.rs:24:3
Aug 30 14:37:19.859 INFO kablam!    |
Aug 30 14:37:19.859 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 30 14:37:19.859 INFO kablam!    |   ^^^^^
Aug 30 14:37:19.860 INFO kablam!    |
Aug 30 14:37:19.860 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 14:37:19.860 INFO kablam! 
Aug 30 14:37:19.860 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 14:37:19.860 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 14:37:19.860 INFO kablam!    |
Aug 30 14:37:19.860 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Aug 30 14:37:19.860 INFO kablam!    |   ^^^^^
Aug 30 14:37:19.860 INFO kablam!    |
Aug 30 14:37:19.860 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 14:37:19.860 INFO kablam! 
Aug 30 14:37:19.860 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 14:37:19.860 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 14:37:19.861 INFO kablam!    |
Aug 30 14:37:19.861 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Aug 30 14:37:19.861 INFO kablam!    |   ^^^^^
Aug 30 14:37:19.861 INFO kablam!    |
Aug 30 14:37:19.861 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 14:37:19.861 INFO kablam! 
Aug 30 14:37:19.861 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 14:37:19.861 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 14:37:19.861 INFO kablam!    |
Aug 30 14:37:19.861 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Aug 30 14:37:19.861 INFO kablam!    |   ^^^^^
Aug 30 14:37:19.861 INFO kablam!    |
Aug 30 14:37:19.861 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 14:37:19.861 INFO kablam! 
Aug 30 14:37:19.862 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 14:37:19.862 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 14:37:19.862 INFO kablam!    |
Aug 30 14:37:19.862 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 30 14:37:19.862 INFO kablam!    |   ^^^^^
Aug 30 14:37:19.862 INFO kablam!    |
Aug 30 14:37:19.862 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 14:37:19.862 INFO kablam! 
Aug 30 14:37:19.862 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 14:37:19.862 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/mod.rs:46:3
Aug 30 14:37:19.862 INFO kablam!    |
Aug 30 14:37:19.862 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Aug 30 14:37:19.862 INFO kablam!    |   ^^^^^
Aug 30 14:37:19.863 INFO kablam!    |
Aug 30 14:37:19.863 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 14:37:19.863 INFO kablam! 
Aug 30 14:37:19.926 INFO kablam! error: aborting due to 7 previous errors
Aug 30 14:37:19.926 INFO kablam! 
Aug 30 14:37:19.926 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Aug 30 14:37:19.932 INFO kablam! error: Could not compile `log4rs`.
Aug 30 14:37:19.932 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 30 14:37:26.877 INFO kablam! error: build failed
Aug 30 14:37:26.879 INFO kablam! su: No module specific data is present
Aug 30 14:37:27.566 INFO running `"docker" "rm" "-f" "a717da5557c8a177e4b44f3115be067630c09130d97af6bc0e8cd6a9377f8777"`
Aug 30 14:37:27.707 INFO blam! a717da5557c8a177e4b44f3115be067630c09130d97af6bc0e8cd6a9377f8777