Sep 06 01:25:02.860 INFO checking rincon_connector-0.1.0 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 01:25:02.860 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 01:25:02.860 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-6/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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=1000" "-e" "CMD=cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 01:25:03.055 INFO blam! f74bea01baaba33449339c2dca5e4ff273dc48689ef3abcb9e14a44f8d20e33d
Sep 06 01:25:03.057 INFO running `"docker" "start" "-a" "f74bea01baaba33449339c2dca5e4ff273dc48689ef3abcb9e14a44f8d20e33d"`
Sep 06 01:25:04.574 INFO kablam! usermod: no changes
Sep 06 01:25:05.009 INFO kablam!    Compiling syntex_fmt_macros v0.5.0
Sep 06 01:25:05.023 INFO kablam!     Checking log v0.3.9
Sep 06 01:25:05.023 INFO kablam!     Checking want v0.0.4
Sep 06 01:25:05.024 INFO kablam!    Compiling syn v0.14.9
Sep 06 01:25:05.052 INFO kablam!     Checking mio-uds v0.6.7
Sep 06 01:25:05.066 INFO kablam!     Checking tokio-reactor v0.1.5
Sep 06 01:25:08.376 INFO kablam!     Checking tokio-tcp v0.1.1
Sep 06 01:25:08.376 INFO kablam!     Checking tokio-udp v0.1.2
Sep 06 01:25:08.376 INFO kablam!     Checking tokio-uds v0.2.1
Sep 06 01:25:11.250 INFO kablam!     Checking tokio v0.1.8
Sep 06 01:25:12.996 INFO kablam!     Checking tokio-core v0.1.17
Sep 06 01:25:15.302 INFO kablam!     Checking tokio-proto v0.1.1
Sep 06 01:25:15.302 INFO kablam!     Checking tokio-tls v0.1.4
Sep 06 01:25:19.787 INFO kablam!     Checking tokio-io-timeout v0.1.3
Sep 06 01:25:19.787 INFO kablam!     Checking hyper v0.11.27
Sep 06 01:25:32.776 INFO kablam!    Compiling synstructure v0.9.0
Sep 06 01:25:32.776 INFO kablam!    Compiling serde_derive v1.0.76
Sep 06 01:25:32.776 INFO kablam!    Compiling derive-error-chain v0.11.2
Sep 06 01:25:34.981 INFO kablam!     Checking hyper-timeout v0.1.1
Sep 06 01:25:34.981 INFO kablam!     Checking hyper-tls v0.1.4
Sep 06 01:25:39.926 INFO kablam!    Compiling failure_derive v0.1.2
Sep 06 01:25:43.241 INFO kablam!     Checking dotenv v0.11.0
Sep 06 01:25:43.780 INFO kablam!     Checking failure v0.1.2
Sep 06 01:25:56.133 INFO kablam!     Checking rincon_core v0.1.0
Sep 06 01:25:56.134 INFO kablam!     Checking log4rs v0.8.0
Sep 06 01:25:57.410 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 06 01:25:57.410 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/file.rs:25:3
Sep 06 01:25:57.410 INFO kablam!    |
Sep 06 01:25:57.410 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 06 01:25:57.410 INFO kablam!    |   ^^^^^
Sep 06 01:25:57.418 INFO kablam!    |
Sep 06 01:25:57.418 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 01:25:57.418 INFO kablam! 
Sep 06 01:25:57.418 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 06 01:25:57.419 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/console.rs:24:3
Sep 06 01:25:57.419 INFO kablam!    |
Sep 06 01:25:57.419 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 06 01:25:57.419 INFO kablam!    |   ^^^^^
Sep 06 01:25:57.419 INFO kablam!    |
Sep 06 01:25:57.419 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 01:25:57.419 INFO kablam! 
Sep 06 01:25:57.419 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 06 01:25:57.419 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 06 01:25:57.419 INFO kablam!    |
Sep 06 01:25:57.419 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 06 01:25:57.419 INFO kablam!    |   ^^^^^
Sep 06 01:25:57.419 INFO kablam!    |
Sep 06 01:25:57.419 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 01:25:57.419 INFO kablam! 
Sep 06 01:25:57.420 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 06 01:25:57.420 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 06 01:25:57.420 INFO kablam!    |
Sep 06 01:25:57.420 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 06 01:25:57.420 INFO kablam!    |   ^^^^^
Sep 06 01:25:57.420 INFO kablam!    |
Sep 06 01:25:57.420 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 01:25:57.420 INFO kablam! 
Sep 06 01:25:57.420 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 06 01:25:57.420 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 06 01:25:57.420 INFO kablam!    |
Sep 06 01:25:57.420 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 06 01:25:57.420 INFO kablam!    |   ^^^^^
Sep 06 01:25:57.420 INFO kablam!    |
Sep 06 01:25:57.420 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 01:25:57.420 INFO kablam! 
Sep 06 01:25:57.421 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 06 01:25:57.421 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/policy/compound/mod.rs:24:3
Sep 06 01:25:57.421 INFO kablam!    |
Sep 06 01:25:57.421 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 06 01:25:57.421 INFO kablam!    |   ^^^^^
Sep 06 01:25:57.421 INFO kablam!    |
Sep 06 01:25:57.421 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 01:25:57.421 INFO kablam! 
Sep 06 01:25:57.421 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 06 01:25:57.421 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/mod.rs:46:3
Sep 06 01:25:57.421 INFO kablam!    |
Sep 06 01:25:57.421 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 06 01:25:57.421 INFO kablam!    |   ^^^^^
Sep 06 01:25:57.421 INFO kablam!    |
Sep 06 01:25:57.421 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 01:25:57.421 INFO kablam! 
Sep 06 01:25:57.549 INFO kablam! error: aborting due to 7 previous errors
Sep 06 01:25:57.558 INFO kablam! 
Sep 06 01:25:57.558 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 06 01:25:57.574 INFO kablam! error: Could not compile `log4rs`.
Sep 06 01:25:57.574 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 06 01:25:58.206 INFO kablam! error: build failed
Sep 06 01:25:58.208 INFO kablam! su: No module specific data is present
Sep 06 01:25:59.793 INFO running `"docker" "rm" "-f" "f74bea01baaba33449339c2dca5e4ff273dc48689ef3abcb9e14a44f8d20e33d"`
Sep 06 01:25:59.912 INFO blam! f74bea01baaba33449339c2dca5e4ff273dc48689ef3abcb9e14a44f8d20e33d