Sep 04 06:03:33.876 INFO checking rincon_connector-0.1.0 against try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0 for pr-53893
Sep 04 06:03:33.876 INFO running: cargo +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets
Sep 04 06:03:33.876 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53893/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-1/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/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 +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 06:03:34.045 INFO blam! f831072a7ade21ec1fad83ec69f8a4712aa2fd7c913884af7edf2a3e98521642
Sep 04 06:03:34.047 INFO running `"docker" "start" "-a" "f831072a7ade21ec1fad83ec69f8a4712aa2fd7c913884af7edf2a3e98521642"`
Sep 04 06:03:35.084 INFO kablam!     Checking log v0.4.5
Sep 04 06:03:35.087 INFO kablam!    Compiling derive-error-chain v0.11.2
Sep 04 06:03:35.090 INFO kablam!     Checking rincon_core v0.1.0
Sep 04 06:03:36.294 INFO kablam!     Checking tokio-io v0.1.8
Sep 04 06:03:36.297 INFO kablam!     Checking mio v0.6.15
Sep 04 06:03:36.299 INFO kablam!     Checking tokio-threadpool v0.1.6
Sep 04 06:03:36.302 INFO kablam!     Checking log v0.3.9
Sep 04 06:03:36.305 INFO kablam!     Checking want v0.0.4
Sep 04 06:03:36.308 INFO kablam!     Checking log4rs v0.8.0
Sep 04 06:03:40.123 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)
Sep 04 06:03:40.123 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/file.rs:25:3
Sep 04 06:03:40.123 INFO kablam!    |
Sep 04 06:03:40.123 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 04 06:03:40.123 INFO kablam!    |   ^^^^^
Sep 04 06:03:40.123 INFO kablam!    |
Sep 04 06:03:40.123 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 06:03:40.123 INFO kablam! 
Sep 04 06:03:40.123 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)
Sep 04 06:03:40.123 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/console.rs:24:3
Sep 04 06:03:40.123 INFO kablam!    |
Sep 04 06:03:40.123 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 04 06:03:40.123 INFO kablam!    |   ^^^^^
Sep 04 06:03:40.123 INFO kablam!    |
Sep 04 06:03:40.123 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 06:03:40.123 INFO kablam! 
Sep 04 06:03:40.123 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)
Sep 04 06:03:40.123 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 04 06:03:40.123 INFO kablam!    |
Sep 04 06:03:40.123 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 04 06:03:40.123 INFO kablam!    |   ^^^^^
Sep 04 06:03:40.123 INFO kablam!    |
Sep 04 06:03:40.123 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 06:03:40.124 INFO kablam! 
Sep 04 06:03:40.124 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 04 06:03:40.124 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 04 06:03:40.124 INFO kablam!    |
Sep 04 06:03:40.124 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 04 06:03:40.124 INFO kablam!    |   ^^^^^
Sep 04 06:03:40.124 INFO kablam!    |
Sep 04 06:03:40.124 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 06:03:40.124 INFO kablam! 
Sep 04 06:03:40.124 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 04 06:03:40.124 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 04 06:03:40.124 INFO kablam!    |
Sep 04 06:03:40.124 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 04 06:03:40.124 INFO kablam!    |   ^^^^^
Sep 04 06:03:40.124 INFO kablam!    |
Sep 04 06:03:40.124 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 06:03:40.124 INFO kablam! 
Sep 04 06:03:40.124 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 04 06:03:40.124 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/policy/compound/mod.rs:24:3
Sep 04 06:03:40.124 INFO kablam!    |
Sep 04 06:03:40.124 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 04 06:03:40.124 INFO kablam!    |   ^^^^^
Sep 04 06:03:40.124 INFO kablam!    |
Sep 04 06:03:40.124 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 06:03:40.124 INFO kablam! 
Sep 04 06:03:40.124 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 04 06:03:40.124 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/mod.rs:46:3
Sep 04 06:03:40.124 INFO kablam!    |
Sep 04 06:03:40.125 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 04 06:03:40.125 INFO kablam!    |   ^^^^^
Sep 04 06:03:40.125 INFO kablam!    |
Sep 04 06:03:40.125 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 06:03:40.125 INFO kablam! 
Sep 04 06:03:40.270 INFO kablam! error: aborting due to 7 previous errors
Sep 04 06:03:40.270 INFO kablam! 
Sep 04 06:03:40.270 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 04 06:03:40.283 INFO kablam! error: Could not compile `log4rs`.
Sep 04 06:03:40.283 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 04 06:03:48.921 INFO kablam! error: build failed
Sep 04 06:03:48.922 INFO kablam! su: No module specific data is present
Sep 04 06:03:49.442 INFO running `"docker" "rm" "-f" "f831072a7ade21ec1fad83ec69f8a4712aa2fd7c913884af7edf2a3e98521642"`
Sep 04 06:03:49.607 INFO blam! f831072a7ade21ec1fad83ec69f8a4712aa2fd7c913884af7edf2a3e98521642