Aug 30 20:32:07.423 INFO checking crust-0.31.0 against master#545f22340f72ee0efaf6463efb43a2840e3d35db for pr-53699
Aug 30 20:32:07.423 INFO running: cargo +545f22340f72ee0efaf6463efb43a2840e3d35db-alt check --frozen --all --all-targets
Aug 30 20:32:07.423 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 20:32:07.585 INFO blam! 50fb5a0489ee909138fc66f5576acd9447d77406108b7bfbb5faabc0c18b7952
Aug 30 20:32:07.589 INFO running `"docker" "start" "-a" "50fb5a0489ee909138fc66f5576acd9447d77406108b7bfbb5faabc0c18b7952"`
Aug 30 20:32:08.664 INFO kablam!    Compiling byteorder v1.1.0
Aug 30 20:32:08.678 INFO kablam!    Compiling crossbeam-epoch v0.5.2
Aug 30 20:32:08.688 INFO kablam!    Compiling url v1.5.1
Aug 30 20:32:08.692 INFO kablam!     Checking clap v2.25.1
Aug 30 20:32:08.696 INFO kablam!    Compiling openssl v0.9.24
Aug 30 20:32:08.699 INFO kablam!     Checking config_file_handler v0.11.0
Aug 30 20:32:08.722 INFO kablam!    Compiling phf v0.7.23
Aug 30 20:32:08.723 INFO kablam!    Compiling flate2 v1.0.2
Aug 30 20:32:11.980 INFO kablam!     Checking igd v0.6.0
Aug 30 20:32:13.815 INFO kablam!     Checking log4rs v0.7.0
Aug 30 20:32:16.189 INFO kablam!    Compiling bytes v0.4.9
Aug 30 20:32:16.243 INFO kablam!    Compiling base64 v0.9.2
Aug 30 20:32:22.194 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 20:32:22.194 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/file.rs:25:3
Aug 30 20:32:22.194 INFO kablam!    |
Aug 30 20:32:22.194 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Aug 30 20:32:22.194 INFO kablam!    |   ^^^^^
Aug 30 20:32:22.194 INFO kablam!    |
Aug 30 20:32:22.194 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 20:32:22.194 INFO kablam! 
Aug 30 20:32:22.211 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 20:32:22.211 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/console.rs:24:3
Aug 30 20:32:22.211 INFO kablam!    |
Aug 30 20:32:22.211 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 30 20:32:22.211 INFO kablam!    |   ^^^^^
Aug 30 20:32:22.212 INFO kablam!    |
Aug 30 20:32:22.212 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 20:32:22.212 INFO kablam! 
Aug 30 20:32:22.213 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 20:32:22.213 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 20:32:22.213 INFO kablam!    |
Aug 30 20:32:22.213 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Aug 30 20:32:22.213 INFO kablam!    |   ^^^^^
Aug 30 20:32:22.218 INFO kablam!    |
Aug 30 20:32:22.219 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 20:32:22.219 INFO kablam! 
Aug 30 20:32:22.220 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 20:32:22.220 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 20:32:22.220 INFO kablam!    |
Aug 30 20:32:22.220 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Aug 30 20:32:22.220 INFO kablam!    |   ^^^^^
Aug 30 20:32:22.220 INFO kablam!    |
Aug 30 20:32:22.221 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 20:32:22.221 INFO kablam! 
Aug 30 20:32:22.222 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 20:32:22.222 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 20:32:22.222 INFO kablam!    |
Aug 30 20:32:22.222 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Aug 30 20:32:22.222 INFO kablam!    |   ^^^^^
Aug 30 20:32:22.223 INFO kablam!    |
Aug 30 20:32:22.223 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 20:32:22.224 INFO kablam! 
Aug 30 20:32:22.224 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 20:32:22.224 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 20:32:22.224 INFO kablam!    |
Aug 30 20:32:22.224 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 30 20:32:22.225 INFO kablam!    |   ^^^^^
Aug 30 20:32:22.225 INFO kablam!    |
Aug 30 20:32:22.225 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 20:32:22.226 INFO kablam! 
Aug 30 20:32:22.226 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 20:32:22.226 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/mod.rs:46:3
Aug 30 20:32:22.226 INFO kablam!    |
Aug 30 20:32:22.227 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Aug 30 20:32:22.227 INFO kablam!    |   ^^^^^
Aug 30 20:32:22.227 INFO kablam!    |
Aug 30 20:32:22.227 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 20:32:22.228 INFO kablam! 
Aug 30 20:32:22.545 INFO kablam! error: aborting due to 7 previous errors
Aug 30 20:32:22.547 INFO kablam! 
Aug 30 20:32:22.547 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Aug 30 20:32:22.579 INFO kablam! error: Could not compile `log4rs`.
Aug 30 20:32:22.580 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 30 20:32:34.289 INFO kablam! error: build failed
Aug 30 20:32:34.291 INFO kablam! su: No module specific data is present
Aug 30 20:32:34.756 INFO running `"docker" "rm" "-f" "50fb5a0489ee909138fc66f5576acd9447d77406108b7bfbb5faabc0c18b7952"`
Aug 30 20:32:34.896 INFO blam! 50fb5a0489ee909138fc66f5576acd9447d77406108b7bfbb5faabc0c18b7952