Sep 02 02:41:12.947 INFO checking rincon_client-0.1.1 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 02 02:41:12.947 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 02 02:41:12.947 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-1/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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 +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 02:41:13.193 INFO blam! 60e5359eccea9e45b49fe787a9fe9210fd63ee581901b30b2464ecc6c94c5775
Sep 02 02:41:13.196 INFO running `"docker" "start" "-a" "60e5359eccea9e45b49fe787a9fe9210fd63ee581901b30b2464ecc6c94c5775"`
Sep 02 02:41:14.574 INFO kablam!    Compiling derive-error-chain v0.11.2
Sep 02 02:41:14.574 INFO kablam!     Checking tokio-tcp v0.1.1
Sep 02 02:41:14.574 INFO kablam!     Checking tokio-uds v0.2.1
Sep 02 02:41:14.658 INFO kablam!     Checking tokio-udp v0.1.2
Sep 02 02:41:14.659 INFO kablam!     Checking log4rs v0.8.0
Sep 02 02:41:14.685 INFO kablam!     Checking rincon_core v0.1.0
Sep 02 02:41:17.260 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 02:41:17.260 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/file.rs:25:3
Sep 02 02:41:17.260 INFO kablam!    |
Sep 02 02:41:17.260 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 02 02:41:17.260 INFO kablam!    |   ^^^^^
Sep 02 02:41:17.261 INFO kablam!    |
Sep 02 02:41:17.261 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 02:41:17.262 INFO kablam! 
Sep 02 02:41:17.262 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 02:41:17.262 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/console.rs:24:3
Sep 02 02:41:17.263 INFO kablam!    |
Sep 02 02:41:17.263 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 02 02:41:17.263 INFO kablam!    |   ^^^^^
Sep 02 02:41:17.263 INFO kablam!    |
Sep 02 02:41:17.263 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 02:41:17.264 INFO kablam! 
Sep 02 02:41:17.264 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 02:41:17.265 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 02:41:17.265 INFO kablam!    |
Sep 02 02:41:17.265 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 02 02:41:17.265 INFO kablam!    |   ^^^^^
Sep 02 02:41:17.265 INFO kablam!    |
Sep 02 02:41:17.266 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 02:41:17.266 INFO kablam! 
Sep 02 02:41:17.266 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 02:41:17.267 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 02:41:17.267 INFO kablam!    |
Sep 02 02:41:17.267 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 02 02:41:17.267 INFO kablam!    |   ^^^^^
Sep 02 02:41:17.270 INFO kablam!    |
Sep 02 02:41:17.271 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 02:41:17.271 INFO kablam! 
Sep 02 02:41:17.272 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 02:41:17.272 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 02:41:17.272 INFO kablam!    |
Sep 02 02:41:17.272 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 02 02:41:17.272 INFO kablam!    |   ^^^^^
Sep 02 02:41:17.272 INFO kablam!    |
Sep 02 02:41:17.273 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 02:41:17.273 INFO kablam! 
Sep 02 02:41:17.274 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 02:41:17.274 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 02:41:17.274 INFO kablam!    |
Sep 02 02:41:17.274 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 02 02:41:17.274 INFO kablam!    |   ^^^^^
Sep 02 02:41:17.274 INFO kablam!    |
Sep 02 02:41:17.275 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 02:41:17.275 INFO kablam! 
Sep 02 02:41:17.276 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 02:41:17.276 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/mod.rs:46:3
Sep 02 02:41:17.276 INFO kablam!    |
Sep 02 02:41:17.276 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 02 02:41:17.276 INFO kablam!    |   ^^^^^
Sep 02 02:41:17.276 INFO kablam!    |
Sep 02 02:41:17.277 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 02:41:17.277 INFO kablam! 
Sep 02 02:41:17.586 INFO kablam! error: aborting due to 7 previous errors
Sep 02 02:41:17.610 INFO kablam! 
Sep 02 02:41:17.611 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 02 02:41:17.621 INFO kablam! error: Could not compile `log4rs`.
Sep 02 02:41:17.622 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 02 02:41:27.816 INFO kablam! error: build failed
Sep 02 02:41:27.818 INFO kablam! su: No module specific data is present
Sep 02 02:41:28.286 INFO running `"docker" "rm" "-f" "60e5359eccea9e45b49fe787a9fe9210fd63ee581901b30b2464ecc6c94c5775"`
Sep 02 02:41:28.428 INFO blam! 60e5359eccea9e45b49fe787a9fe9210fd63ee581901b30b2464ecc6c94c5775