Sep 04 04:15:56.580 INFO checking safe_crypto-0.3.0 against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 04 04:15:56.580 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 04 04:15:56.581 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-2/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/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 +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 04:15:56.781 INFO blam! d564c1b8880b78745527a108ac06c0ac601daa09aa7357d0227ab96be3a5b4cd
Sep 04 04:15:56.783 INFO running `"docker" "start" "-a" "d564c1b8880b78745527a108ac06c0ac601daa09aa7357d0227ab96be3a5b4cd"`
Sep 04 04:15:58.137 INFO kablam!    Compiling stable_deref_trait v1.1.1
Sep 04 04:15:58.141 INFO kablam!    Compiling crossbeam-utils v0.5.0
Sep 04 04:15:58.144 INFO kablam!    Compiling futures v0.1.23
Sep 04 04:15:58.148 INFO kablam!    Compiling slab v0.4.1
Sep 04 04:15:58.161 INFO kablam!    Compiling iovec v0.1.2
Sep 04 04:15:58.164 INFO kablam!    Compiling net2 v0.2.33
Sep 04 04:15:58.165 INFO kablam!    Compiling encoding_rs v0.8.6
Sep 04 04:15:58.174 INFO kablam!    Compiling uuid v0.6.5
Sep 04 04:15:59.287 INFO kablam!    Compiling serde v1.0.76
Sep 04 04:16:00.088 INFO kablam!    Compiling parking_lot_core v0.3.0
Sep 04 04:16:00.144 INFO kablam!    Compiling owning_ref v0.3.3
Sep 04 04:16:02.340 INFO kablam!    Compiling unicase v2.1.0
Sep 04 04:16:02.366 INFO kablam!    Compiling url v1.5.1
Sep 04 04:16:02.390 INFO kablam!    Compiling bytes v0.4.9
Sep 04 04:16:04.000 INFO kablam!     Checking serde_yaml v0.7.5
Sep 04 04:16:09.297 INFO kablam!     Checking toml v0.4.6
Sep 04 04:16:12.003 INFO kablam!     Checking regex v0.2.11
Sep 04 04:16:15.866 INFO kablam!    Compiling crossbeam-epoch v0.5.2
Sep 04 04:16:17.293 INFO kablam!    Compiling lock_api v0.1.3
Sep 04 04:16:26.975 INFO kablam!    Compiling openssl v0.9.24
Sep 04 04:16:33.012 INFO kablam!    Compiling mio v0.6.15
Sep 04 04:16:33.064 INFO kablam!     Checking bincode v0.8.0
Sep 04 04:16:33.092 INFO kablam!     Checking config_file_handler v0.9.0
Sep 04 04:16:33.144 INFO kablam!    Compiling mime v0.3.9
Sep 04 04:16:33.361 INFO kablam!    Compiling parking_lot v0.6.4
Sep 04 04:16:34.002 INFO kablam!    Compiling crossbeam-deque v0.6.1
Sep 04 04:16:37.309 INFO kablam!    Compiling phf v0.7.23
Sep 04 04:16:38.965 INFO kablam!    Compiling flate2 v1.0.2
Sep 04 04:16:41.499 INFO kablam!     Checking serde-value v0.5.2
Sep 04 04:16:41.534 INFO kablam!    Compiling tokio-io v0.1.8
Sep 04 04:16:41.543 INFO kablam!    Compiling tokio-executor v0.1.4
Sep 04 04:16:41.903 INFO kablam!    Compiling futures-cpupool v0.1.8
Sep 04 04:16:51.096 INFO kablam!    Compiling tokio-service v0.1.0
Sep 04 04:16:51.201 INFO kablam!    Compiling relay v0.1.1
Sep 04 04:16:51.204 INFO kablam!    Compiling want v0.0.4
Sep 04 04:16:51.559 INFO kablam!    Compiling tokio-threadpool v0.1.6
Sep 04 04:16:51.560 INFO kablam!    Compiling tokio-current-thread v0.1.1
Sep 04 04:16:51.662 INFO kablam!    Compiling tokio-timer v0.2.6
Sep 04 04:16:52.948 INFO kablam!    Compiling zip v0.3.3
Sep 04 04:16:53.213 INFO kablam!    Compiling mio-uds v0.6.6
Sep 04 04:16:53.967 INFO kablam!     Checking log4rs v0.7.0
Sep 04 04:16:57.524 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 04:16:57.525 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/file.rs:25:3
Sep 04 04:16:57.525 INFO kablam!    |
Sep 04 04:16:57.525 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 04 04:16:57.525 INFO kablam!    |   ^^^^^
Sep 04 04:16:57.525 INFO kablam!    |
Sep 04 04:16:57.525 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 04:16:57.525 INFO kablam! 
Sep 04 04:16:57.525 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 04:16:57.525 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/console.rs:24:3
Sep 04 04:16:57.525 INFO kablam!    |
Sep 04 04:16:57.525 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 04 04:16:57.525 INFO kablam!    |   ^^^^^
Sep 04 04:16:57.525 INFO kablam!    |
Sep 04 04:16:57.525 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 04:16:57.525 INFO kablam! 
Sep 04 04:16:57.525 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 04:16:57.525 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/roll/delete.rs:16:3
Sep 04 04:16:57.525 INFO kablam!    |
Sep 04 04:16:57.525 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 04 04:16:57.525 INFO kablam!    |   ^^^^^
Sep 04 04:16:57.525 INFO kablam!    |
Sep 04 04:16:57.525 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 04:16:57.525 INFO kablam! 
Sep 04 04:16:57.525 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 04:16:57.525 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
Sep 04 04:16:57.526 INFO kablam!    |
Sep 04 04:16:57.526 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 04 04:16:57.526 INFO kablam!    |   ^^^^^
Sep 04 04:16:57.526 INFO kablam!    |
Sep 04 04:16:57.526 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 04:16:57.526 INFO kablam! 
Sep 04 04:16:57.526 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 04:16:57.526 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/trigger/size.rs:21:3
Sep 04 04:16:57.526 INFO kablam!    |
Sep 04 04:16:57.526 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 04 04:16:57.526 INFO kablam!    |   ^^^^^
Sep 04 04:16:57.526 INFO kablam!    |
Sep 04 04:16:57.526 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 04:16:57.526 INFO kablam! 
Sep 04 04:16:57.526 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 04:16:57.526 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/mod.rs:24:3
Sep 04 04:16:57.526 INFO kablam!    |
Sep 04 04:16:57.526 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 04 04:16:57.526 INFO kablam!    |   ^^^^^
Sep 04 04:16:57.526 INFO kablam!    |
Sep 04 04:16:57.526 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 04:16:57.526 INFO kablam! 
Sep 04 04:16:57.527 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 04:16:57.527 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/mod.rs:46:3
Sep 04 04:16:57.527 INFO kablam!    |
Sep 04 04:16:57.527 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 04 04:16:57.527 INFO kablam!    |   ^^^^^
Sep 04 04:16:57.527 INFO kablam!    |
Sep 04 04:16:57.527 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 04:16:57.527 INFO kablam! 
Sep 04 04:16:57.682 INFO kablam! error: aborting due to 7 previous errors
Sep 04 04:16:57.682 INFO kablam! 
Sep 04 04:16:57.682 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 04 04:16:57.692 INFO kablam! error: Could not compile `log4rs`.
Sep 04 04:16:57.693 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 04 04:17:05.229 INFO kablam! error: build failed
Sep 04 04:17:05.236 INFO kablam! su: No module specific data is present
Sep 04 04:17:05.782 INFO running `"docker" "rm" "-f" "d564c1b8880b78745527a108ac06c0ac601daa09aa7357d0227ab96be3a5b4cd"`
Sep 04 04:17:05.958 INFO blam! d564c1b8880b78745527a108ac06c0ac601daa09aa7357d0227ab96be3a5b4cd