Aug 30 06:15:17.271 INFO checking rincon_connector-0.1.0 against master#ede55518431154bc761f7b2438cce9078c162700 for pr-53707
Aug 30 06:15:17.271 INFO running: cargo +ede55518431154bc761f7b2438cce9078c162700-alt check --frozen --all --all-targets
Aug 30 06:15:17.271 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53707/master#ede55518431154bc761f7b2438cce9078c162700:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53707/worker-0/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 06:15:17.502 INFO blam! 75e777351122ca8ba16d26228bd9d8678b71780f2b0864018708fcec0f6e1088
Aug 30 06:15:17.505 INFO running `"docker" "start" "-a" "75e777351122ca8ba16d26228bd9d8678b71780f2b0864018708fcec0f6e1088"`
Aug 30 06:15:18.454 INFO kablam!     Checking tokio-tcp v0.1.1
Aug 30 06:15:18.454 INFO kablam!     Checking tokio-uds v0.2.1
Aug 30 06:15:18.456 INFO kablam!     Checking tokio-udp v0.1.2
Aug 30 06:15:18.456 INFO kablam!     Checking dotenv v0.11.0
Aug 30 06:15:18.457 INFO kablam!     Checking log4rs v0.8.0
Aug 30 06:15:20.339 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 06:15:20.339 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/file.rs:25:3
Aug 30 06:15:20.339 INFO kablam!    |
Aug 30 06:15:20.340 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Aug 30 06:15:20.340 INFO kablam!    |   ^^^^^
Aug 30 06:15:20.340 INFO kablam!    |
Aug 30 06:15:20.340 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 06:15:20.341 INFO kablam! 
Aug 30 06:15:20.341 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 06:15:20.341 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/console.rs:24:3
Aug 30 06:15:20.341 INFO kablam!    |
Aug 30 06:15:20.341 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 30 06:15:20.342 INFO kablam!    |   ^^^^^
Aug 30 06:15:20.342 INFO kablam!    |
Aug 30 06:15:20.342 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 06:15:20.343 INFO kablam! 
Aug 30 06:15:20.343 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 06:15:20.343 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 06:15:20.343 INFO kablam!    |
Aug 30 06:15:20.343 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Aug 30 06:15:20.343 INFO kablam!    |   ^^^^^
Aug 30 06:15:20.344 INFO kablam!    |
Aug 30 06:15:20.344 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 06:15:20.344 INFO kablam! 
Aug 30 06:15:20.345 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 06:15:20.345 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 06:15:20.345 INFO kablam!    |
Aug 30 06:15:20.345 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Aug 30 06:15:20.345 INFO kablam!    |   ^^^^^
Aug 30 06:15:20.346 INFO kablam!    |
Aug 30 06:15:20.346 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 06:15:20.346 INFO kablam! 
Aug 30 06:15:20.347 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 06:15:20.347 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 06:15:20.347 INFO kablam!    |
Aug 30 06:15:20.347 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Aug 30 06:15:20.347 INFO kablam!    |   ^^^^^
Aug 30 06:15:20.347 INFO kablam!    |
Aug 30 06:15:20.348 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 06:15:20.348 INFO kablam! 
Aug 30 06:15:20.349 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 06:15:20.349 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 06:15:20.349 INFO kablam!    |
Aug 30 06:15:20.349 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 30 06:15:20.349 INFO kablam!    |   ^^^^^
Aug 30 06:15:20.349 INFO kablam!    |
Aug 30 06:15:20.349 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 06:15:20.350 INFO kablam! 
Aug 30 06:15:20.350 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 06:15:20.350 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/mod.rs:46:3
Aug 30 06:15:20.350 INFO kablam!    |
Aug 30 06:15:20.350 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Aug 30 06:15:20.350 INFO kablam!    |   ^^^^^
Aug 30 06:15:20.351 INFO kablam!    |
Aug 30 06:15:20.351 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 06:15:20.352 INFO kablam! 
Aug 30 06:15:20.492 INFO kablam! error: aborting due to 7 previous errors
Aug 30 06:15:20.493 INFO kablam! 
Aug 30 06:15:20.494 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Aug 30 06:15:20.502 INFO kablam! error: Could not compile `log4rs`.
Aug 30 06:15:20.503 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 30 06:15:22.264 INFO kablam! error: build failed
Aug 30 06:15:22.267 INFO kablam! su: No module specific data is present
Aug 30 06:15:22.796 INFO running `"docker" "rm" "-f" "75e777351122ca8ba16d26228bd9d8678b71780f2b0864018708fcec0f6e1088"`
Aug 30 06:15:22.950 INFO blam! 75e777351122ca8ba16d26228bd9d8678b71780f2b0864018708fcec0f6e1088