Sep 01 07:35:45.119 INFO checking connectr-1.0.0 against master#d0d81b7fc1421859ba0218e8a437af29ae3b0967 for pr-53578
Sep 01 07:35:45.120 INFO running: cargo +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets
Sep 01 07:35:45.120 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53578/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-0/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 07:35:45.337 INFO blam! 8fd51660d620a91ceb08db2f5d0fe56a2b83f4c661b09fb7e0871692478eb879
Sep 01 07:35:45.340 INFO running `"docker" "start" "-a" "8fd51660d620a91ceb08db2f5d0fe56a2b83f4c661b09fb7e0871692478eb879"`
Sep 01 07:35:46.423 INFO kablam!     Checking tokio-reactor v0.1.5
Sep 01 07:35:46.423 INFO kablam!     Checking serde-value v0.5.2
Sep 01 07:35:46.425 INFO kablam!     Checking timer v0.2.0
Sep 01 07:35:48.521 INFO kablam!     Checking log4rs v0.8.0
Sep 01 07:35:49.923 INFO kablam!     Checking tokio-uds v0.2.1
Sep 01 07:35:49.926 INFO kablam!     Checking tokio-tcp v0.1.1
Sep 01 07:35:49.929 INFO kablam!     Checking tokio-udp v0.1.2
Sep 01 07:35:51.126 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 07:35:51.126 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/file.rs:25:3
Sep 01 07:35:51.126 INFO kablam!    |
Sep 01 07:35:51.126 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 01 07:35:51.126 INFO kablam!    |   ^^^^^
Sep 01 07:35:51.126 INFO kablam!    |
Sep 01 07:35:51.126 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:35:51.126 INFO kablam! 
Sep 01 07:35:51.127 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 07:35:51.127 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/console.rs:24:3
Sep 01 07:35:51.127 INFO kablam!    |
Sep 01 07:35:51.127 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 01 07:35:51.127 INFO kablam!    |   ^^^^^
Sep 01 07:35:51.127 INFO kablam!    |
Sep 01 07:35:51.127 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:35:51.127 INFO kablam! 
Sep 01 07:35:51.127 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 07:35:51.127 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/policy/compound/roll/delete.rs:16:3
Sep 01 07:35:51.128 INFO kablam!    |
Sep 01 07:35:51.128 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 01 07:35:51.128 INFO kablam!    |   ^^^^^
Sep 01 07:35:51.128 INFO kablam!    |
Sep 01 07:35:51.128 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:35:51.128 INFO kablam! 
Sep 01 07:35:51.128 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 07:35:51.128 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
Sep 01 07:35:51.128 INFO kablam!    |
Sep 01 07:35:51.128 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 01 07:35:51.128 INFO kablam!    |   ^^^^^
Sep 01 07:35:51.128 INFO kablam!    |
Sep 01 07:35:51.128 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:35:51.128 INFO kablam! 
Sep 01 07:35:51.128 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 07:35:51.128 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/policy/compound/trigger/size.rs:21:3
Sep 01 07:35:51.128 INFO kablam!    |
Sep 01 07:35:51.128 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 01 07:35:51.128 INFO kablam!    |   ^^^^^
Sep 01 07:35:51.128 INFO kablam!    |
Sep 01 07:35:51.128 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:35:51.128 INFO kablam! 
Sep 01 07:35:51.128 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 07:35:51.128 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/policy/compound/mod.rs:24:3
Sep 01 07:35:51.128 INFO kablam!    |
Sep 01 07:35:51.128 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 01 07:35:51.129 INFO kablam!    |   ^^^^^
Sep 01 07:35:51.129 INFO kablam!    |
Sep 01 07:35:51.129 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:35:51.129 INFO kablam! 
Sep 01 07:35:51.129 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 07:35:51.129 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/mod.rs:46:3
Sep 01 07:35:51.129 INFO kablam!    |
Sep 01 07:35:51.129 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 01 07:35:51.129 INFO kablam!    |   ^^^^^
Sep 01 07:35:51.129 INFO kablam!    |
Sep 01 07:35:51.129 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:35:51.129 INFO kablam! 
Sep 01 07:35:51.231 INFO kablam! error: aborting due to 7 previous errors
Sep 01 07:35:51.231 INFO kablam! 
Sep 01 07:35:51.231 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 01 07:35:51.240 INFO kablam! error: Could not compile `log4rs`.
Sep 01 07:35:51.240 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 01 07:35:53.012 INFO kablam! error: build failed
Sep 01 07:35:53.014 INFO kablam! su: No module specific data is present
Sep 01 07:35:53.358 INFO running `"docker" "rm" "-f" "8fd51660d620a91ceb08db2f5d0fe56a2b83f4c661b09fb7e0871692478eb879"`
Sep 01 07:35:53.451 INFO blam! 8fd51660d620a91ceb08db2f5d0fe56a2b83f4c661b09fb7e0871692478eb879