Sep 04 09:09:21.325 INFO checking rincon_test_helper-0.1.0 against try#5fe695a3844714c70e8f7731a553f7947987a68a for pr-53913
Sep 04 09:09:21.325 INFO running: cargo +5fe695a3844714c70e8f7731a553f7947987a68a-alt check --frozen --all --all-targets
Sep 04 09:09:21.326 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53913/try#5fe695a3844714c70e8f7731a553f7947987a68a:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53913/worker-1/try#5fe695a3844714c70e8f7731a553f7947987a68a:/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 +5fe695a3844714c70e8f7731a553f7947987a68a-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 09:09:21.482 INFO blam! 6146f61d864fd1b22cf731297424d46a106acfe84f36e1902326166a9ada89af
Sep 04 09:09:21.483 INFO running `"docker" "start" "-a" "6146f61d864fd1b22cf731297424d46a106acfe84f36e1902326166a9ada89af"`
Sep 04 09:09:22.397 INFO kablam!    Compiling syntex_fmt_macros v0.5.0
Sep 04 09:09:22.401 INFO kablam!     Checking tokio-io v0.1.8
Sep 04 09:09:22.401 INFO kablam!     Checking mio v0.6.15
Sep 04 09:09:22.401 INFO kablam!     Checking log v0.3.9
Sep 04 09:09:22.402 INFO kablam!     Checking want v0.0.4
Sep 04 09:09:22.408 INFO kablam!     Checking tokio-threadpool v0.1.6
Sep 04 09:09:22.411 INFO kablam!     Checking log4rs v0.8.0
Sep 04 09:09:22.414 INFO kablam!     Checking rincon_core v0.1.0
Sep 04 09:09:25.401 INFO kablam!    Compiling derive-error-chain v0.11.2
Sep 04 09:09:26.790 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 09:09:26.791 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/file.rs:25:3
Sep 04 09:09:26.791 INFO kablam!    |
Sep 04 09:09:26.791 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 04 09:09:26.791 INFO kablam!    |   ^^^^^
Sep 04 09:09:26.791 INFO kablam!    |
Sep 04 09:09:26.791 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 09:09:26.792 INFO kablam! 
Sep 04 09:09:26.792 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 09:09:26.792 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/console.rs:24:3
Sep 04 09:09:26.792 INFO kablam!    |
Sep 04 09:09:26.793 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 04 09:09:26.793 INFO kablam!    |   ^^^^^
Sep 04 09:09:26.793 INFO kablam!    |
Sep 04 09:09:26.793 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 09:09:26.794 INFO kablam! 
Sep 04 09:09:26.794 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 09:09:26.794 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 09:09:26.794 INFO kablam!    |
Sep 04 09:09:26.794 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 04 09:09:26.794 INFO kablam!    |   ^^^^^
Sep 04 09:09:26.795 INFO kablam!    |
Sep 04 09:09:26.795 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 09:09:26.795 INFO kablam! 
Sep 04 09:09:26.796 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 09:09:26.796 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 09:09:26.796 INFO kablam!    |
Sep 04 09:09:26.796 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 04 09:09:26.796 INFO kablam!    |   ^^^^^
Sep 04 09:09:26.796 INFO kablam!    |
Sep 04 09:09:26.797 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 09:09:26.797 INFO kablam! 
Sep 04 09:09:26.798 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 09:09:26.798 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 09:09:26.798 INFO kablam!    |
Sep 04 09:09:26.798 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 04 09:09:26.798 INFO kablam!    |   ^^^^^
Sep 04 09:09:26.798 INFO kablam!    |
Sep 04 09:09:26.798 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 09:09:26.799 INFO kablam! 
Sep 04 09:09:26.799 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 09:09:26.799 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 09:09:26.799 INFO kablam!    |
Sep 04 09:09:26.799 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 04 09:09:26.799 INFO kablam!    |   ^^^^^
Sep 04 09:09:26.800 INFO kablam!    |
Sep 04 09:09:26.800 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 09:09:26.800 INFO kablam! 
Sep 04 09:09:26.801 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 09:09:26.801 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/mod.rs:46:3
Sep 04 09:09:26.801 INFO kablam!    |
Sep 04 09:09:26.801 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 04 09:09:26.801 INFO kablam!    |   ^^^^^
Sep 04 09:09:26.808 INFO kablam!    |
Sep 04 09:09:26.809 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 09:09:26.809 INFO kablam! 
Sep 04 09:09:27.213 INFO kablam! error: aborting due to 7 previous errors
Sep 04 09:09:27.213 INFO kablam! 
Sep 04 09:09:27.213 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 04 09:09:27.249 INFO kablam! error: Could not compile `log4rs`.
Sep 04 09:09:27.249 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 04 09:09:39.822 INFO kablam! error: build failed
Sep 04 09:09:39.824 INFO kablam! su: No module specific data is present
Sep 04 09:09:40.334 INFO running `"docker" "rm" "-f" "6146f61d864fd1b22cf731297424d46a106acfe84f36e1902326166a9ada89af"`
Sep 04 09:09:40.423 INFO blam! 6146f61d864fd1b22cf731297424d46a106acfe84f36e1902326166a9ada89af