Sep 01 07:07:26.697 INFO checking crust-0.31.0 against master#d0d81b7fc1421859ba0218e8a437af29ae3b0967 for pr-53578
Sep 01 07:07:26.697 INFO running: cargo +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets
Sep 01 07:07:26.697 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53578/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-3/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/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 +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 07:07:26.859 INFO blam! 7298edd8781862bc0797461c18319bfac8620c81f4a3ca45177854f688a9e370
Sep 01 07:07:26.860 INFO running `"docker" "start" "-a" "7298edd8781862bc0797461c18319bfac8620c81f4a3ca45177854f688a9e370"`
Sep 01 07:07:28.361 INFO kablam!    Compiling stable_deref_trait v1.1.1
Sep 01 07:07:28.367 INFO kablam!    Compiling crossbeam-utils v0.5.0
Sep 01 07:07:28.372 INFO kablam!    Compiling try-lock v0.1.0
Sep 01 07:07:28.373 INFO kablam!    Compiling scoped-tls v0.1.2
Sep 01 07:07:28.405 INFO kablam!    Compiling unwrap v1.2.1
Sep 01 07:07:28.417 INFO kablam!    Compiling tokio-executor v0.1.4
Sep 01 07:07:28.418 INFO kablam!    Compiling relay v0.1.1
Sep 01 07:07:28.418 INFO kablam!    Compiling tokio-service v0.1.0
Sep 01 07:07:30.344 INFO kablam!    Compiling futures-cpupool v0.1.8
Sep 01 07:07:30.432 INFO kablam!    Compiling uuid v0.6.5
Sep 01 07:07:30.543 INFO kablam!    Compiling owning_ref v0.3.3
Sep 01 07:07:31.339 INFO kablam!    Compiling parking_lot_core v0.3.0
Sep 01 07:07:31.363 INFO kablam!    Compiling tokio-io v0.1.8
Sep 01 07:07:31.737 INFO kablam!    Compiling want v0.0.4
Sep 01 07:07:32.715 INFO kablam!    Compiling unicase v2.1.0
Sep 01 07:07:35.241 INFO kablam!    Compiling mio-uds v0.6.6
Sep 01 07:07:35.609 INFO kablam!    Compiling crossbeam-epoch v0.5.2
Sep 01 07:07:40.436 INFO kablam!    Compiling tokio-current-thread v0.1.1
Sep 01 07:07:40.438 INFO kablam!    Compiling tokio-timer v0.2.6
Sep 01 07:07:40.442 INFO kablam!    Compiling lock_api v0.1.3
Sep 01 07:07:40.448 INFO kablam!    Compiling openssl v0.9.24
Sep 01 07:07:40.449 INFO kablam!    Compiling libflate v0.1.16
Sep 01 07:07:40.449 INFO kablam!    Compiling serde_urlencoded v0.5.3
Sep 01 07:07:40.457 INFO kablam!     Checking config_file_handler v0.11.0
Sep 01 07:07:40.465 INFO kablam!    Compiling phf v0.7.23
Sep 01 07:07:42.973 INFO kablam!    Compiling mime v0.3.9
Sep 01 07:07:44.448 INFO kablam!    Compiling flate2 v1.0.2
Sep 01 07:07:44.487 INFO kablam!    Compiling tokio-codec v0.1.0
Sep 01 07:07:44.492 INFO kablam!    Compiling crossbeam-deque v0.6.1
Sep 01 07:07:44.536 INFO kablam!    Compiling parking_lot v0.6.4
Sep 01 07:07:48.555 INFO kablam!    Compiling tokio-threadpool v0.1.6
Sep 01 07:07:48.562 INFO kablam!     Checking log4rs v0.7.0
Sep 01 07:07:48.628 INFO kablam!    Compiling mime_guess v2.0.0-alpha.6
Sep 01 07:07:49.001 INFO kablam!    Compiling tokio-reactor v0.1.5
Sep 01 07:07:53.102 INFO kablam!    Compiling zip v0.3.3
Sep 01 07:07:54.100 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)
Sep 01 07:07:54.100 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/file.rs:25:3
Sep 01 07:07:54.100 INFO kablam!    |
Sep 01 07:07:54.100 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 01 07:07:54.100 INFO kablam!    |   ^^^^^
Sep 01 07:07:54.101 INFO kablam!    |
Sep 01 07:07:54.102 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:07:54.102 INFO kablam! 
Sep 01 07:07:54.103 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)
Sep 01 07:07:54.103 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/console.rs:24:3
Sep 01 07:07:54.103 INFO kablam!    |
Sep 01 07:07:54.103 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 01 07:07:54.103 INFO kablam!    |   ^^^^^
Sep 01 07:07:54.104 INFO kablam!    |
Sep 01 07:07:54.104 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:07:54.105 INFO kablam! 
Sep 01 07:07:54.105 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)
Sep 01 07:07:54.105 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/roll/delete.rs:16:3
Sep 01 07:07:54.106 INFO kablam!    |
Sep 01 07:07:54.106 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 01 07:07:54.106 INFO kablam!    |   ^^^^^
Sep 01 07:07:54.122 INFO kablam!    |
Sep 01 07:07:54.123 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:07:54.123 INFO kablam! 
Sep 01 07:07:54.124 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)
Sep 01 07:07:54.124 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
Sep 01 07:07:54.124 INFO kablam!    |
Sep 01 07:07:54.124 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 01 07:07:54.124 INFO kablam!    |   ^^^^^
Sep 01 07:07:54.125 INFO kablam!    |
Sep 01 07:07:54.126 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:07:54.126 INFO kablam! 
Sep 01 07:07:54.127 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)
Sep 01 07:07:54.127 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/trigger/size.rs:21:3
Sep 01 07:07:54.127 INFO kablam!    |
Sep 01 07:07:54.127 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 01 07:07:54.127 INFO kablam!    |   ^^^^^
Sep 01 07:07:54.128 INFO kablam!    |
Sep 01 07:07:54.128 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:07:54.129 INFO kablam! 
Sep 01 07:07:54.129 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)
Sep 01 07:07:54.129 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/mod.rs:24:3
Sep 01 07:07:54.129 INFO kablam!    |
Sep 01 07:07:54.129 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 01 07:07:54.129 INFO kablam!    |   ^^^^^
Sep 01 07:07:54.130 INFO kablam!    |
Sep 01 07:07:54.131 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:07:54.131 INFO kablam! 
Sep 01 07:07:54.132 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)
Sep 01 07:07:54.132 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/mod.rs:46:3
Sep 01 07:07:54.132 INFO kablam!    |
Sep 01 07:07:54.132 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 01 07:07:54.132 INFO kablam!    |   ^^^^^
Sep 01 07:07:54.133 INFO kablam!    |
Sep 01 07:07:54.133 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:07:54.133 INFO kablam! 
Sep 01 07:07:54.276 INFO kablam! error: aborting due to 7 previous errors
Sep 01 07:07:54.277 INFO kablam! 
Sep 01 07:07:54.277 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 01 07:07:54.288 INFO kablam! error: Could not compile `log4rs`.
Sep 01 07:07:54.289 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 01 07:07:59.846 INFO kablam! error: build failed
Sep 01 07:07:59.848 INFO kablam! su: No module specific data is present
Sep 01 07:08:00.302 INFO running `"docker" "rm" "-f" "7298edd8781862bc0797461c18319bfac8620c81f4a3ca45177854f688a9e370"`
Sep 01 07:08:00.400 INFO blam! 7298edd8781862bc0797461c18319bfac8620c81f4a3ca45177854f688a9e370