Aug 30 21:21:52.908 INFO checking connect-0.1.1 against master#ede55518431154bc761f7b2438cce9078c162700 for pr-53707
Aug 30 21:21:52.908 INFO running: cargo +ede55518431154bc761f7b2438cce9078c162700-alt check --frozen --all --all-targets
Aug 30 21:21:52.908 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 21:21:53.158 INFO blam! 274c83fdff66bc47ae95373e92a43ed85ec481cc7de0ea4eb6ab852c30f9f59b
Aug 30 21:21:53.161 INFO running `"docker" "start" "-a" "274c83fdff66bc47ae95373e92a43ed85ec481cc7de0ea4eb6ab852c30f9f59b"`
Aug 30 21:21:54.137 INFO kablam!     Checking bytes v0.4.9
Aug 30 21:21:54.145 INFO kablam!     Checking mio-extras v2.0.5
Aug 30 21:21:54.145 INFO kablam!     Checking log4rs v0.8.0
Aug 30 21:21:57.494 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 21:21:57.494 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/file.rs:25:3
Aug 30 21:21:57.494 INFO kablam!    |
Aug 30 21:21:57.494 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Aug 30 21:21:57.494 INFO kablam!    |   ^^^^^
Aug 30 21:21:57.494 INFO kablam!    |
Aug 30 21:21:57.494 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 21:21:57.494 INFO kablam! 
Aug 30 21:21:57.494 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 21:21:57.495 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/console.rs:24:3
Aug 30 21:21:57.495 INFO kablam!    |
Aug 30 21:21:57.495 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 30 21:21:57.495 INFO kablam!    |   ^^^^^
Aug 30 21:21:57.495 INFO kablam!    |
Aug 30 21:21:57.495 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 21:21:57.495 INFO kablam! 
Aug 30 21:21:57.495 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 21:21:57.495 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 21:21:57.495 INFO kablam!    |
Aug 30 21:21:57.495 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Aug 30 21:21:57.495 INFO kablam!    |   ^^^^^
Aug 30 21:21:57.495 INFO kablam!    |
Aug 30 21:21:57.496 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 21:21:57.496 INFO kablam! 
Aug 30 21:21:57.496 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 21:21:57.496 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 21:21:57.496 INFO kablam!    |
Aug 30 21:21:57.496 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Aug 30 21:21:57.496 INFO kablam!    |   ^^^^^
Aug 30 21:21:57.496 INFO kablam!    |
Aug 30 21:21:57.497 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 21:21:57.497 INFO kablam! 
Aug 30 21:21:57.497 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 21:21:57.497 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 21:21:57.497 INFO kablam!    |
Aug 30 21:21:57.497 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Aug 30 21:21:57.497 INFO kablam!    |   ^^^^^
Aug 30 21:21:57.497 INFO kablam!    |
Aug 30 21:21:57.497 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 21:21:57.498 INFO kablam! 
Aug 30 21:21:57.498 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 21:21:57.498 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 21:21:57.498 INFO kablam!    |
Aug 30 21:21:57.498 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 30 21:21:57.498 INFO kablam!    |   ^^^^^
Aug 30 21:21:57.498 INFO kablam!    |
Aug 30 21:21:57.498 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 21:21:57.498 INFO kablam! 
Aug 30 21:21:57.499 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 21:21:57.499 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/mod.rs:46:3
Aug 30 21:21:57.499 INFO kablam!    |
Aug 30 21:21:57.499 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Aug 30 21:21:57.499 INFO kablam!    |   ^^^^^
Aug 30 21:21:57.499 INFO kablam!    |
Aug 30 21:21:57.499 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 21:21:57.499 INFO kablam! 
Aug 30 21:21:57.605 INFO kablam! error: aborting due to 7 previous errors
Aug 30 21:21:57.606 INFO kablam! 
Aug 30 21:21:57.606 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Aug 30 21:21:57.620 INFO kablam! error: Could not compile `log4rs`.
Aug 30 21:21:57.620 INFO kablam! 
Aug 30 21:21:57.621 INFO kablam! To learn more, run the command again with --verbose.
Aug 30 21:21:57.622 INFO kablam! su: No module specific data is present
Aug 30 21:21:58.349 INFO running `"docker" "rm" "-f" "274c83fdff66bc47ae95373e92a43ed85ec481cc7de0ea4eb6ab852c30f9f59b"`
Aug 30 21:21:58.454 INFO blam! 274c83fdff66bc47ae95373e92a43ed85ec481cc7de0ea4eb6ab852c30f9f59b