Aug 31 16:34:22.278 INFO checking rincon_client-0.1.1 against try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b for pr-53578
Aug 31 16:34:22.278 INFO running: cargo +a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b-alt check --frozen --all --all-targets
Aug 31 16:34:22.278 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53578/try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-0/try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b:/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 +a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 31 16:34:22.434 INFO blam! 8e91a2d09193e4f097ac2a5979047aa69f0d84f76e16e58ac74a02f5971f7fe0
Aug 31 16:34:22.436 INFO running `"docker" "start" "-a" "8e91a2d09193e4f097ac2a5979047aa69f0d84f76e16e58ac74a02f5971f7fe0"`
Aug 31 16:34:23.353 INFO kablam!     Checking tokio-tcp v0.1.1
Aug 31 16:34:23.353 INFO kablam!     Checking tokio-uds v0.2.1
Aug 31 16:34:23.353 INFO kablam!     Checking tokio-udp v0.1.2
Aug 31 16:34:23.355 INFO kablam!     Checking log4rs v0.8.0
Aug 31 16:34:23.356 INFO kablam!     Checking rincon_client v0.1.1
Aug 31 16:34:23.356 INFO kablam!     Checking rincon_client v0.1.1 (file:///source)
Aug 31 16:34:25.885 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 31 16:34:25.885 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/file.rs:25:3
Aug 31 16:34:25.885 INFO kablam!    |
Aug 31 16:34:25.885 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Aug 31 16:34:25.885 INFO kablam!    |   ^^^^^
Aug 31 16:34:25.886 INFO kablam!    |
Aug 31 16:34:25.886 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 31 16:34:25.886 INFO kablam! 
Aug 31 16:34:25.890 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 31 16:34:25.891 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/console.rs:24:3
Aug 31 16:34:25.891 INFO kablam!    |
Aug 31 16:34:25.891 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 31 16:34:25.891 INFO kablam!    |   ^^^^^
Aug 31 16:34:25.891 INFO kablam!    |
Aug 31 16:34:25.892 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 31 16:34:25.892 INFO kablam! 
Aug 31 16:34:25.893 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 31 16:34:25.893 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/policy/compound/roll/delete.rs:16:3
Aug 31 16:34:25.893 INFO kablam!    |
Aug 31 16:34:25.893 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Aug 31 16:34:25.893 INFO kablam!    |   ^^^^^
Aug 31 16:34:25.893 INFO kablam!    |
Aug 31 16:34:25.894 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 31 16:34:25.894 INFO kablam! 
Aug 31 16:34:25.895 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 31 16:34:25.895 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
Aug 31 16:34:25.895 INFO kablam!    |
Aug 31 16:34:25.895 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Aug 31 16:34:25.895 INFO kablam!    |   ^^^^^
Aug 31 16:34:25.896 INFO kablam!    |
Aug 31 16:34:25.896 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 31 16:34:25.897 INFO kablam! 
Aug 31 16:34:25.897 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 31 16:34:25.897 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/policy/compound/trigger/size.rs:21:3
Aug 31 16:34:25.897 INFO kablam!    |
Aug 31 16:34:25.897 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Aug 31 16:34:25.897 INFO kablam!    |   ^^^^^
Aug 31 16:34:25.898 INFO kablam!    |
Aug 31 16:34:25.898 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 31 16:34:25.899 INFO kablam! 
Aug 31 16:34:25.900 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 31 16:34:25.900 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/policy/compound/mod.rs:24:3
Aug 31 16:34:25.900 INFO kablam!    |
Aug 31 16:34:25.900 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 31 16:34:25.900 INFO kablam!    |   ^^^^^
Aug 31 16:34:25.900 INFO kablam!    |
Aug 31 16:34:25.901 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 31 16:34:25.901 INFO kablam! 
Aug 31 16:34:25.902 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 31 16:34:25.902 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/mod.rs:46:3
Aug 31 16:34:25.902 INFO kablam!    |
Aug 31 16:34:25.902 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Aug 31 16:34:25.902 INFO kablam!    |   ^^^^^
Aug 31 16:34:25.903 INFO kablam!    |
Aug 31 16:34:25.903 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 31 16:34:25.903 INFO kablam! 
Aug 31 16:34:26.204 INFO kablam! error: aborting due to 7 previous errors
Aug 31 16:34:26.210 INFO kablam! 
Aug 31 16:34:26.211 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Aug 31 16:34:26.233 INFO kablam! error: Could not compile `log4rs`.
Aug 31 16:34:26.234 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 31 16:34:40.093 INFO kablam! error: build failed
Aug 31 16:34:40.095 INFO kablam! su: No module specific data is present
Aug 31 16:34:40.485 INFO running `"docker" "rm" "-f" "8e91a2d09193e4f097ac2a5979047aa69f0d84f76e16e58ac74a02f5971f7fe0"`
Aug 31 16:34:40.615 INFO blam! 8e91a2d09193e4f097ac2a5979047aa69f0d84f76e16e58ac74a02f5971f7fe0