Aug 30 08:17:12.910 INFO checking parsec-0.5.0 against master#545f22340f72ee0efaf6463efb43a2840e3d35db for pr-53699
Aug 30 08:17:12.910 INFO running: cargo +545f22340f72ee0efaf6463efb43a2840e3d35db-alt check --frozen --all --all-targets
Aug 30 08:17:12.910 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53699/master#545f22340f72ee0efaf6463efb43a2840e3d35db:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53699/worker-2/master#545f22340f72ee0efaf6463efb43a2840e3d35db:/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 +545f22340f72ee0efaf6463efb43a2840e3d35db-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 08:17:13.173 INFO blam! 6b522d345bc21d1c3ea9e3fd48375fb2f04f5e31757380d72e635aebb483de6e
Aug 30 08:17:13.176 INFO running `"docker" "start" "-a" "6b522d345bc21d1c3ea9e3fd48375fb2f04f5e31757380d72e635aebb483de6e"`
Aug 30 08:17:14.337 INFO kablam!     Checking thread_local v0.3.6
Aug 30 08:17:14.339 INFO kablam!     Checking ws v0.7.3
Aug 30 08:17:14.343 INFO kablam!     Checking log4rs v0.7.0
Aug 30 08:17:15.819 INFO kablam!     Checking regex v0.2.11
Aug 30 08:17:16.518 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 08:17:16.518 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/file.rs:25:3
Aug 30 08:17:16.518 INFO kablam!    |
Aug 30 08:17:16.518 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Aug 30 08:17:16.518 INFO kablam!    |   ^^^^^
Aug 30 08:17:16.519 INFO kablam!    |
Aug 30 08:17:16.519 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 08:17:16.519 INFO kablam! 
Aug 30 08:17:16.519 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 08:17:16.519 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/console.rs:24:3
Aug 30 08:17:16.519 INFO kablam!    |
Aug 30 08:17:16.519 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 30 08:17:16.519 INFO kablam!    |   ^^^^^
Aug 30 08:17:16.519 INFO kablam!    |
Aug 30 08:17:16.519 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 08:17:16.519 INFO kablam! 
Aug 30 08:17:16.519 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 08:17:16.519 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/roll/delete.rs:16:3
Aug 30 08:17:16.519 INFO kablam!    |
Aug 30 08:17:16.519 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Aug 30 08:17:16.519 INFO kablam!    |   ^^^^^
Aug 30 08:17:16.519 INFO kablam!    |
Aug 30 08:17:16.519 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 08:17:16.519 INFO kablam! 
Aug 30 08:17:16.519 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 08:17:16.520 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/roll/fixed_window.rs:17:3
Aug 30 08:17:16.520 INFO kablam!    |
Aug 30 08:17:16.520 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Aug 30 08:17:16.520 INFO kablam!    |   ^^^^^
Aug 30 08:17:16.520 INFO kablam!    |
Aug 30 08:17:16.520 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 08:17:16.520 INFO kablam! 
Aug 30 08:17:16.521 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 08:17:16.521 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/trigger/size.rs:21:3
Aug 30 08:17:16.521 INFO kablam!    |
Aug 30 08:17:16.521 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Aug 30 08:17:16.521 INFO kablam!    |   ^^^^^
Aug 30 08:17:16.521 INFO kablam!    |
Aug 30 08:17:16.521 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 08:17:16.522 INFO kablam! 
Aug 30 08:17:16.522 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 08:17:16.522 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/mod.rs:24:3
Aug 30 08:17:16.522 INFO kablam!    |
Aug 30 08:17:16.522 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 30 08:17:16.522 INFO kablam!    |   ^^^^^
Aug 30 08:17:16.522 INFO kablam!    |
Aug 30 08:17:16.522 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 08:17:16.522 INFO kablam! 
Aug 30 08:17:16.522 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 08:17:16.522 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/mod.rs:46:3
Aug 30 08:17:16.522 INFO kablam!    |
Aug 30 08:17:16.522 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Aug 30 08:17:16.522 INFO kablam!    |   ^^^^^
Aug 30 08:17:16.522 INFO kablam!    |
Aug 30 08:17:16.522 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 08:17:16.522 INFO kablam! 
Aug 30 08:17:16.649 INFO kablam! error: aborting due to 7 previous errors
Aug 30 08:17:16.649 INFO kablam! 
Aug 30 08:17:16.649 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Aug 30 08:17:16.658 INFO kablam! error: Could not compile `log4rs`.
Aug 30 08:17:16.658 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 30 08:17:20.497 INFO kablam! error: build failed
Aug 30 08:17:20.499 INFO kablam! su: No module specific data is present
Aug 30 08:17:20.974 INFO running `"docker" "rm" "-f" "6b522d345bc21d1c3ea9e3fd48375fb2f04f5e31757380d72e635aebb483de6e"`
Aug 30 08:17:21.109 INFO blam! 6b522d345bc21d1c3ea9e3fd48375fb2f04f5e31757380d72e635aebb483de6e