Aug 30 04:31:49.685 INFO checking safe_core-0.31.0 against master#ede55518431154bc761f7b2438cce9078c162700 for pr-53707
Aug 30 04:31:49.685 INFO running: cargo +ede55518431154bc761f7b2438cce9078c162700-alt check --frozen --all --all-targets
Aug 30 04:31:49.685 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53707/master#ede55518431154bc761f7b2438cce9078c162700:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53707/worker-1/master#ede55518431154bc761f7b2438cce9078c162700:/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 +ede55518431154bc761f7b2438cce9078c162700-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 04:31:49.904 INFO blam! 7b1db815da8d42caaec0a0e5edfb2951dc95d16bf90e31f56edca3c46d0ffa1b
Aug 30 04:31:49.905 INFO running `"docker" "start" "-a" "7b1db815da8d42caaec0a0e5edfb2951dc95d16bf90e31f56edca3c46d0ffa1b"`
Aug 30 04:31:51.279 INFO kablam!     Checking thread_local v0.3.6
Aug 30 04:31:51.290 INFO kablam!     Checking base64 v0.9.2
Aug 30 04:31:51.292 INFO kablam!    Compiling walkdir v2.0.1
Aug 30 04:31:51.295 INFO kablam!     Checking combine v2.5.2
Aug 30 04:31:51.302 INFO kablam!     Checking crossbeam-epoch v0.5.2
Aug 30 04:31:51.305 INFO kablam!     Checking tokio-io v0.1.8
Aug 30 04:31:51.306 INFO kablam!     Checking ws v0.7.3
Aug 30 04:31:54.685 INFO kablam!     Checking resource_proof v0.5.0
Aug 30 04:31:54.837 INFO kablam!     Checking error-chain v0.11.0
Aug 30 04:31:56.358 INFO kablam!     Checking regex v0.2.11
Aug 30 04:31:59.319 INFO kablam!     Checking crossbeam-deque v0.6.1
Aug 30 04:31:59.368 INFO kablam!     Checking log4rs v0.7.0
Aug 30 04:31:59.369 INFO kablam!    Compiling rust_sodium-sys v0.7.2
Aug 30 04:31:59.417 INFO kablam!    Compiling jni v0.10.1
Aug 30 04:32:00.877 INFO kablam!     Checking tokio-reactor v0.1.5
Aug 30 04:32:03.005 INFO kablam!     Checking tokio-codec v0.1.0
Aug 30 04:32:04.022 INFO kablam!     Checking tokio-threadpool v0.1.6
Aug 30 04:32:04.755 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 30 04:32:04.755 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/file.rs:25:3
Aug 30 04:32:04.755 INFO kablam!    |
Aug 30 04:32:04.755 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Aug 30 04:32:04.755 INFO kablam!    |   ^^^^^
Aug 30 04:32:04.755 INFO kablam!    |
Aug 30 04:32:04.756 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 04:32:04.756 INFO kablam! 
Aug 30 04:32:04.756 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 30 04:32:04.756 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/console.rs:24:3
Aug 30 04:32:04.757 INFO kablam!    |
Aug 30 04:32:04.757 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 30 04:32:04.757 INFO kablam!    |   ^^^^^
Aug 30 04:32:04.757 INFO kablam!    |
Aug 30 04:32:04.757 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 04:32:04.757 INFO kablam! 
Aug 30 04:32:04.757 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 30 04:32:04.757 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/roll/delete.rs:16:3
Aug 30 04:32:04.757 INFO kablam!    |
Aug 30 04:32:04.757 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Aug 30 04:32:04.757 INFO kablam!    |   ^^^^^
Aug 30 04:32:04.757 INFO kablam!    |
Aug 30 04:32:04.757 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 04:32:04.757 INFO kablam! 
Aug 30 04:32:04.757 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 30 04:32:04.757 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/roll/fixed_window.rs:17:3
Aug 30 04:32:04.757 INFO kablam!    |
Aug 30 04:32:04.757 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Aug 30 04:32:04.757 INFO kablam!    |   ^^^^^
Aug 30 04:32:04.757 INFO kablam!    |
Aug 30 04:32:04.757 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 04:32:04.757 INFO kablam! 
Aug 30 04:32:04.757 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 30 04:32:04.757 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/trigger/size.rs:21:3
Aug 30 04:32:04.757 INFO kablam!    |
Aug 30 04:32:04.757 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Aug 30 04:32:04.758 INFO kablam!    |   ^^^^^
Aug 30 04:32:04.758 INFO kablam!    |
Aug 30 04:32:04.758 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 04:32:04.758 INFO kablam! 
Aug 30 04:32:04.765 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 30 04:32:04.765 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/mod.rs:24:3
Aug 30 04:32:04.765 INFO kablam!    |
Aug 30 04:32:04.765 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 30 04:32:04.765 INFO kablam!    |   ^^^^^
Aug 30 04:32:04.765 INFO kablam!    |
Aug 30 04:32:04.765 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 04:32:04.765 INFO kablam! 
Aug 30 04:32:04.765 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 30 04:32:04.765 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/mod.rs:46:3
Aug 30 04:32:04.765 INFO kablam!    |
Aug 30 04:32:04.765 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Aug 30 04:32:04.765 INFO kablam!    |   ^^^^^
Aug 30 04:32:04.765 INFO kablam!    |
Aug 30 04:32:04.768 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 04:32:04.768 INFO kablam! 
Aug 30 04:32:05.072 INFO kablam! error: aborting due to 7 previous errors
Aug 30 04:32:05.072 INFO kablam! 
Aug 30 04:32:05.072 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Aug 30 04:32:05.104 INFO kablam! error: Could not compile `log4rs`.
Aug 30 04:32:05.104 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 30 04:33:28.105 INFO kablam! error: build failed
Aug 30 04:33:28.107 INFO kablam! su: No module specific data is present
Aug 30 04:33:28.609 INFO running `"docker" "rm" "-f" "7b1db815da8d42caaec0a0e5edfb2951dc95d16bf90e31f56edca3c46d0ffa1b"`
Aug 30 04:33:28.761 INFO blam! 7b1db815da8d42caaec0a0e5edfb2951dc95d16bf90e31f56edca3c46d0ffa1b