Sep 02 02:41:06.798 INFO checking rincon_connector-0.1.0 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 02 02:41:06.798 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 02 02:41:06.798 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-0/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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 +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 02:41:06.989 INFO blam! 128e58e108c7334554443ac628a4018ecc402a113952745023e16754bb9d62c3
Sep 02 02:41:06.991 INFO running `"docker" "start" "-a" "128e58e108c7334554443ac628a4018ecc402a113952745023e16754bb9d62c3"`
Sep 02 02:41:07.985 INFO kablam!     Checking tokio-codec v0.1.0
Sep 02 02:41:07.985 INFO kablam!     Checking mio-uds v0.6.6
Sep 02 02:41:07.985 INFO kablam!     Checking tokio-reactor v0.1.5
Sep 02 02:41:07.992 INFO kablam!     Checking dotenv v0.11.0
Sep 02 02:41:07.994 INFO kablam!     Checking log4rs v0.8.0
Sep 02 02:41:07.994 INFO kablam!     Checking tokio-fs v0.1.3
Sep 02 02:41:11.445 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 02 02:41:11.445 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/file.rs:25:3
Sep 02 02:41:11.445 INFO kablam!    |
Sep 02 02:41:11.445 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 02 02:41:11.445 INFO kablam!    |   ^^^^^
Sep 02 02:41:11.445 INFO kablam!    |
Sep 02 02:41:11.445 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 02:41:11.445 INFO kablam! 
Sep 02 02:41:11.446 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 02 02:41:11.446 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/console.rs:24:3
Sep 02 02:41:11.447 INFO kablam!    |
Sep 02 02:41:11.447 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 02 02:41:11.447 INFO kablam!    |   ^^^^^
Sep 02 02:41:11.447 INFO kablam!    |
Sep 02 02:41:11.447 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 02:41:11.447 INFO kablam! 
Sep 02 02:41:11.447 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 02 02:41:11.447 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 02 02:41:11.447 INFO kablam!    |
Sep 02 02:41:11.447 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 02 02:41:11.447 INFO kablam!    |   ^^^^^
Sep 02 02:41:11.447 INFO kablam!    |
Sep 02 02:41:11.447 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 02:41:11.447 INFO kablam! 
Sep 02 02:41:11.447 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 02 02:41:11.447 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 02 02:41:11.447 INFO kablam!    |
Sep 02 02:41:11.447 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 02 02:41:11.447 INFO kablam!    |   ^^^^^
Sep 02 02:41:11.447 INFO kablam!    |
Sep 02 02:41:11.448 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 02:41:11.448 INFO kablam! 
Sep 02 02:41:11.448 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 02 02:41:11.448 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 02 02:41:11.448 INFO kablam!    |
Sep 02 02:41:11.448 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 02 02:41:11.448 INFO kablam!    |   ^^^^^
Sep 02 02:41:11.448 INFO kablam!    |
Sep 02 02:41:11.448 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 02:41:11.448 INFO kablam! 
Sep 02 02:41:11.448 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 02 02:41:11.448 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/policy/compound/mod.rs:24:3
Sep 02 02:41:11.448 INFO kablam!    |
Sep 02 02:41:11.448 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 02 02:41:11.448 INFO kablam!    |   ^^^^^
Sep 02 02:41:11.448 INFO kablam!    |
Sep 02 02:41:11.448 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 02:41:11.448 INFO kablam! 
Sep 02 02:41:11.448 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 02 02:41:11.448 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/mod.rs:46:3
Sep 02 02:41:11.449 INFO kablam!    |
Sep 02 02:41:11.449 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 02 02:41:11.449 INFO kablam!    |   ^^^^^
Sep 02 02:41:11.449 INFO kablam!    |
Sep 02 02:41:11.449 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 02:41:11.449 INFO kablam! 
Sep 02 02:41:11.643 INFO kablam! error: aborting due to 7 previous errors
Sep 02 02:41:11.644 INFO kablam! 
Sep 02 02:41:11.644 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 02 02:41:11.702 INFO kablam! error: Could not compile `log4rs`.
Sep 02 02:41:11.702 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 02 02:41:12.632 INFO kablam! error: build failed
Sep 02 02:41:12.634 INFO kablam! su: No module specific data is present
Sep 02 02:41:13.189 INFO running `"docker" "rm" "-f" "128e58e108c7334554443ac628a4018ecc402a113952745023e16754bb9d62c3"`
Sep 02 02:41:13.405 INFO blam! 128e58e108c7334554443ac628a4018ecc402a113952745023e16754bb9d62c3