Sep 04 04:15:55.456 INFO checking safe_crypto-0.3.0 against try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0 for pr-53893
Sep 04 04:15:55.456 INFO running: cargo +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets
Sep 04 04:15:55.456 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53893/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-3/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/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 +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 04:15:55.675 INFO blam! b144fb740e50aa9086831d5bb700782ca330b16e2b9d2615c34630f56e0fd794
Sep 04 04:15:55.676 INFO running `"docker" "start" "-a" "b144fb740e50aa9086831d5bb700782ca330b16e2b9d2615c34630f56e0fd794"`
Sep 04 04:15:56.973 INFO kablam!    Compiling crossbeam-epoch v0.5.2
Sep 04 04:15:56.973 INFO kablam!    Compiling lock_api v0.1.3
Sep 04 04:15:56.973 INFO kablam!    Compiling want v0.0.4
Sep 04 04:15:56.974 INFO kablam!    Compiling tokio-current-thread v0.1.1
Sep 04 04:15:56.974 INFO kablam!    Compiling tokio-timer v0.2.6
Sep 04 04:15:56.974 INFO kablam!    Compiling serde v1.0.76
Sep 04 04:15:56.984 INFO kablam!    Compiling parking_lot_core v0.3.0
Sep 04 04:15:56.984 INFO kablam!    Compiling tokio-io v0.1.8
Sep 04 04:15:58.639 INFO kablam!    Compiling unicase v2.1.0
Sep 04 04:15:59.076 INFO kablam!    Compiling mio-uds v0.6.6
Sep 04 04:16:03.496 INFO kablam!    Compiling url v1.5.1
Sep 04 04:16:03.507 INFO kablam!     Checking toml v0.4.6
Sep 04 04:16:03.517 INFO kablam!     Checking regex v0.2.11
Sep 04 04:16:03.530 INFO kablam!    Compiling crossbeam-deque v0.6.1
Sep 04 04:16:03.567 INFO kablam!    Compiling openssl v0.9.24
Sep 04 04:16:03.634 INFO kablam!     Checking bincode v0.8.0
Sep 04 04:16:06.423 INFO kablam!     Checking config_file_handler v0.9.0
Sep 04 04:16:07.967 INFO kablam!    Compiling phf v0.7.23
Sep 04 04:16:10.284 INFO kablam!    Compiling parking_lot v0.6.4
Sep 04 04:16:10.447 INFO kablam!    Compiling tokio-codec v0.1.0
Sep 04 04:16:11.484 INFO kablam!    Compiling flate2 v1.0.2
Sep 04 04:16:15.176 INFO kablam!     Checking serde-value v0.5.2
Sep 04 04:16:23.943 INFO kablam!    Compiling mime v0.3.9
Sep 04 04:16:23.945 INFO kablam!    Compiling tokio-threadpool v0.1.6
Sep 04 04:16:23.961 INFO kablam!    Compiling tokio-reactor v0.1.5
Sep 04 04:16:24.001 INFO kablam!     Checking log4rs v0.7.0
Sep 04 04:16:24.119 INFO kablam!    Compiling zip v0.3.3
Sep 04 04:16:28.634 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 04:16:28.634 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/file.rs:25:3
Sep 04 04:16:28.634 INFO kablam!    |
Sep 04 04:16:28.634 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 04 04:16:28.634 INFO kablam!    |   ^^^^^
Sep 04 04:16:28.638 INFO kablam!    |
Sep 04 04:16:28.642 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 04:16:28.642 INFO kablam! 
Sep 04 04:16:28.647 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 04:16:28.647 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/console.rs:24:3
Sep 04 04:16:28.647 INFO kablam!    |
Sep 04 04:16:28.647 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 04 04:16:28.647 INFO kablam!    |   ^^^^^
Sep 04 04:16:28.647 INFO kablam!    |
Sep 04 04:16:28.647 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 04:16:28.647 INFO kablam! 
Sep 04 04:16:28.648 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 04:16:28.648 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 04:16:28.648 INFO kablam!    |
Sep 04 04:16:28.648 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 04 04:16:28.648 INFO kablam!    |   ^^^^^
Sep 04 04:16:28.648 INFO kablam!    |
Sep 04 04:16:28.648 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 04:16:28.648 INFO kablam! 
Sep 04 04:16:28.649 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 04:16:28.649 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 04:16:28.649 INFO kablam!    |
Sep 04 04:16:28.649 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 04 04:16:28.649 INFO kablam!    |   ^^^^^
Sep 04 04:16:28.649 INFO kablam!    |
Sep 04 04:16:28.649 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 04:16:28.649 INFO kablam! 
Sep 04 04:16:28.649 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 04:16:28.650 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 04:16:28.650 INFO kablam!    |
Sep 04 04:16:28.650 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 04 04:16:28.650 INFO kablam!    |   ^^^^^
Sep 04 04:16:28.650 INFO kablam!    |
Sep 04 04:16:28.650 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 04:16:28.650 INFO kablam! 
Sep 04 04:16:28.650 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 04:16:28.651 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 04:16:28.651 INFO kablam!    |
Sep 04 04:16:28.651 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 04 04:16:28.651 INFO kablam!    |   ^^^^^
Sep 04 04:16:28.651 INFO kablam!    |
Sep 04 04:16:28.651 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 04:16:28.651 INFO kablam! 
Sep 04 04:16:28.651 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 04:16:28.651 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/mod.rs:46:3
Sep 04 04:16:28.651 INFO kablam!    |
Sep 04 04:16:28.652 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 04 04:16:28.652 INFO kablam!    |   ^^^^^
Sep 04 04:16:28.652 INFO kablam!    |
Sep 04 04:16:28.652 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 04:16:28.652 INFO kablam! 
Sep 04 04:16:29.091 INFO kablam! error: aborting due to 7 previous errors
Sep 04 04:16:29.091 INFO kablam! 
Sep 04 04:16:29.091 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 04 04:16:29.120 INFO kablam! error: Could not compile `log4rs`.
Sep 04 04:16:29.120 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 04 04:16:51.857 INFO kablam! error: build failed
Sep 04 04:16:51.862 INFO kablam! su: No module specific data is present
Sep 04 04:16:52.385 INFO running `"docker" "rm" "-f" "b144fb740e50aa9086831d5bb700782ca330b16e2b9d2615c34630f56e0fd794"`
Sep 04 04:16:52.549 INFO blam! b144fb740e50aa9086831d5bb700782ca330b16e2b9d2615c34630f56e0fd794