Sep 01 00:54:41.717 INFO checking AlexW-GH/rust8 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53831
Sep 01 00:54:41.717 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 01 00:54:41.717 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53831/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-2/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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 +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 00:54:41.919 INFO blam! 86525f8576a958525a5d11d6c97c3fe17aa6f50aa3e65ec030630fa608dfc0cf
Sep 01 00:54:41.921 INFO running `"docker" "start" "-a" "86525f8576a958525a5d11d6c97c3fe17aa6f50aa3e65ec030630fa608dfc0cf"`
Sep 01 00:54:42.888 INFO kablam!    Compiling serde v0.9.11
Sep 01 00:54:42.891 INFO kablam!     Checking linked-hash-map v0.0.10
Sep 01 00:54:42.892 INFO kablam!    Compiling rand v0.3.15
Sep 01 00:54:42.893 INFO kablam!    Compiling x11-dl v2.12.0
Sep 01 00:54:42.896 INFO kablam!     Checking shared_library v0.1.5
Sep 01 00:54:42.897 INFO kablam!     Checking vecmath v0.3.0
Sep 01 00:54:42.898 INFO kablam!    Compiling gl_generator v0.5.2
Sep 01 00:54:42.899 INFO kablam!     Checking pistoncore-input v0.17.1
Sep 01 00:54:44.701 INFO kablam!     Checking ordered-float v0.4.0
Sep 01 00:54:45.347 INFO kablam!     Checking arrayvec v0.3.21
Sep 01 00:54:45.714 INFO kablam!     Checking serde_yaml v0.6.2
Sep 01 00:54:45.882 INFO kablam!     Checking osmesa-sys v0.1.2
Sep 01 00:54:47.404 INFO kablam!     Checking piston2d-graphics v0.21.1
Sep 01 00:54:47.621 INFO kablam!     Checking fs2 v0.2.5
Sep 01 00:54:48.727 INFO kablam!     Checking tempfile v2.1.5
Sep 01 00:54:50.025 INFO kablam!     Checking serde-value v0.4.0
Sep 01 00:54:54.322 INFO kablam!     Checking memmap v0.4.0
Sep 01 00:54:54.346 INFO kablam!     Checking rusttype v0.2.1
Sep 01 00:54:54.348 INFO kablam!     Checking log4rs v0.6.2
Sep 01 00:54:54.350 INFO kablam!    Compiling gl v0.6.1
Sep 01 00:54:54.409 INFO kablam!    Compiling glutin v0.7.4
Sep 01 00:54:54.453 INFO kablam!    Compiling phf_generator v0.7.21
Sep 01 00:54:56.055 INFO kablam!     Checking pistoncore-window v0.26.2
Sep 01 00:54:56.235 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 01 00:54:56.235 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/file.rs:25:3
Sep 01 00:54:56.235 INFO kablam!    |
Sep 01 00:54:56.235 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 01 00:54:56.235 INFO kablam!    |   ^^^^^
Sep 01 00:54:56.235 INFO kablam!    |
Sep 01 00:54:56.235 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 00:54:56.235 INFO kablam! 
Sep 01 00:54:56.235 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 01 00:54:56.235 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/console.rs:24:3
Sep 01 00:54:56.235 INFO kablam!    |
Sep 01 00:54:56.235 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 01 00:54:56.235 INFO kablam!    |   ^^^^^
Sep 01 00:54:56.235 INFO kablam!    |
Sep 01 00:54:56.235 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 00:54:56.235 INFO kablam! 
Sep 01 00:54:56.235 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 01 00:54:56.235 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/rolling_file/policy/compound/roll/delete.rs:16:3
Sep 01 00:54:56.235 INFO kablam!    |
Sep 01 00:54:56.235 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 01 00:54:56.236 INFO kablam!    |   ^^^^^
Sep 01 00:54:56.236 INFO kablam!    |
Sep 01 00:54:56.236 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 00:54:56.236 INFO kablam! 
Sep 01 00:54:56.236 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 01 00:54:56.236 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/rolling_file/policy/compound/roll/fixed_window.rs:17:3
Sep 01 00:54:56.236 INFO kablam!    |
Sep 01 00:54:56.236 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 01 00:54:56.236 INFO kablam!    |   ^^^^^
Sep 01 00:54:56.236 INFO kablam!    |
Sep 01 00:54:56.236 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 00:54:56.236 INFO kablam! 
Sep 01 00:54:56.236 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 01 00:54:56.236 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/rolling_file/policy/compound/trigger/size.rs:21:3
Sep 01 00:54:56.236 INFO kablam!    |
Sep 01 00:54:56.236 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 01 00:54:56.236 INFO kablam!    |   ^^^^^
Sep 01 00:54:56.236 INFO kablam!    |
Sep 01 00:54:56.236 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 00:54:56.236 INFO kablam! 
Sep 01 00:54:56.236 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 01 00:54:56.236 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/rolling_file/policy/compound/mod.rs:24:3
Sep 01 00:54:56.236 INFO kablam!    |
Sep 01 00:54:56.236 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 01 00:54:56.236 INFO kablam!    |   ^^^^^
Sep 01 00:54:56.236 INFO kablam!    |
Sep 01 00:54:56.236 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 00:54:56.237 INFO kablam! 
Sep 01 00:54:56.237 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 01 00:54:56.237 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/rolling_file/mod.rs:46:3
Sep 01 00:54:56.237 INFO kablam!    |
Sep 01 00:54:56.237 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 01 00:54:56.237 INFO kablam!    |   ^^^^^
Sep 01 00:54:56.248 INFO kablam!    |
Sep 01 00:54:56.248 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 00:54:56.248 INFO kablam! 
Sep 01 00:54:56.438 INFO kablam! error: aborting due to 7 previous errors
Sep 01 00:54:56.448 INFO kablam! 
Sep 01 00:54:56.448 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 01 00:54:56.492 INFO kablam! error: Could not compile `log4rs`.
Sep 01 00:54:56.492 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 01 00:55:13.445 INFO kablam! error: build failed
Sep 01 00:55:13.447 INFO kablam! su: No module specific data is present
Sep 01 00:55:13.891 INFO running `"docker" "rm" "-f" "86525f8576a958525a5d11d6c97c3fe17aa6f50aa3e65ec030630fa608dfc0cf"`
Sep 01 00:55:14.044 INFO blam! 86525f8576a958525a5d11d6c97c3fe17aa6f50aa3e65ec030630fa608dfc0cf