Aug 30 20:32:09.502 INFO checking crust-0.28.1 against master#545f22340f72ee0efaf6463efb43a2840e3d35db for pr-53699
Aug 30 20:32:09.502 INFO running: cargo +545f22340f72ee0efaf6463efb43a2840e3d35db-alt check --frozen --all --all-targets
Aug 30 20:32:09.502 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53699/master#545f22340f72ee0efaf6463efb43a2840e3d35db:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53699/worker-0/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 20:32:09.771 INFO blam! 7b0d540d8bbbc25e634ba4c9268bbac5ce3dde0c78f98a4dd00a551c4b1686b1
Aug 30 20:32:09.772 INFO running `"docker" "start" "-a" "7b0d540d8bbbc25e634ba4c9268bbac5ce3dde0c78f98a4dd00a551c4b1686b1"`
Aug 30 20:32:11.042 INFO kablam!     Checking hyper v0.10.13
Aug 30 20:32:11.046 INFO kablam!     Checking ws v0.7.3
Aug 30 20:32:11.050 INFO kablam!     Checking config_file_handler v0.8.3
Aug 30 20:32:11.074 INFO kablam!    Compiling flate2 v1.0.2
Aug 30 20:32:11.106 INFO kablam!     Checking log4rs v0.7.0
Aug 30 20:32:16.109 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 20:32:16.109 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/file.rs:25:3
Aug 30 20:32:16.109 INFO kablam!    |
Aug 30 20:32:16.109 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Aug 30 20:32:16.109 INFO kablam!    |   ^^^^^
Aug 30 20:32:16.110 INFO kablam!    |
Aug 30 20:32:16.110 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 20:32:16.110 INFO kablam! 
Aug 30 20:32:16.111 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 20:32:16.111 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/console.rs:24:3
Aug 30 20:32:16.111 INFO kablam!    |
Aug 30 20:32:16.111 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 30 20:32:16.111 INFO kablam!    |   ^^^^^
Aug 30 20:32:16.111 INFO kablam!    |
Aug 30 20:32:16.112 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 20:32:16.112 INFO kablam! 
Aug 30 20:32:16.113 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 20:32:16.113 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 20:32:16.113 INFO kablam!    |
Aug 30 20:32:16.113 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Aug 30 20:32:16.113 INFO kablam!    |   ^^^^^
Aug 30 20:32:16.113 INFO kablam!    |
Aug 30 20:32:16.113 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 20:32:16.114 INFO kablam! 
Aug 30 20:32:16.114 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 20:32:16.114 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 20:32:16.114 INFO kablam!    |
Aug 30 20:32:16.114 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Aug 30 20:32:16.114 INFO kablam!    |   ^^^^^
Aug 30 20:32:16.118 INFO kablam!    |
Aug 30 20:32:16.119 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 20:32:16.119 INFO kablam! 
Aug 30 20:32:16.120 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 20:32:16.120 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 20:32:16.120 INFO kablam!    |
Aug 30 20:32:16.120 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Aug 30 20:32:16.120 INFO kablam!    |   ^^^^^
Aug 30 20:32:16.120 INFO kablam!    |
Aug 30 20:32:16.120 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 20:32:16.121 INFO kablam! 
Aug 30 20:32:16.121 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 20:32:16.121 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 20:32:16.121 INFO kablam!    |
Aug 30 20:32:16.121 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 30 20:32:16.121 INFO kablam!    |   ^^^^^
Aug 30 20:32:16.122 INFO kablam!    |
Aug 30 20:32:16.122 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 20:32:16.122 INFO kablam! 
Aug 30 20:32:16.123 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 20:32:16.123 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/mod.rs:46:3
Aug 30 20:32:16.123 INFO kablam!    |
Aug 30 20:32:16.123 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Aug 30 20:32:16.123 INFO kablam!    |   ^^^^^
Aug 30 20:32:16.124 INFO kablam!    |
Aug 30 20:32:16.124 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 20:32:16.124 INFO kablam! 
Aug 30 20:32:16.317 INFO kablam! error: aborting due to 7 previous errors
Aug 30 20:32:16.317 INFO kablam! 
Aug 30 20:32:16.317 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Aug 30 20:32:16.331 INFO kablam! error: Could not compile `log4rs`.
Aug 30 20:32:16.331 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 30 20:32:24.759 INFO kablam! error: build failed
Aug 30 20:32:24.761 INFO kablam! su: No module specific data is present
Aug 30 20:32:25.254 INFO running `"docker" "rm" "-f" "7b0d540d8bbbc25e634ba4c9268bbac5ce3dde0c78f98a4dd00a551c4b1686b1"`
Aug 30 20:32:25.424 INFO blam! 7b0d540d8bbbc25e634ba4c9268bbac5ce3dde0c78f98a4dd00a551c4b1686b1