Sep 10 05:39:51.110 INFO checking AlexW-GH/rust8 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 05:39:51.110 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 05:39:51.110 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-3/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/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 +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 05:39:51.358 INFO blam! d7696e6bcaf00532ad9f93853eac491247ad31cbcfe7420dc6b500412da0194b
Sep 10 05:39:51.360 INFO running `"docker" "start" "-a" "d7696e6bcaf00532ad9f93853eac491247ad31cbcfe7420dc6b500412da0194b"`
Sep 10 05:39:53.606 INFO kablam! usermod: no changes
Sep 10 05:39:53.969 INFO kablam!    Compiling serde v0.9.11
Sep 10 05:39:53.971 INFO kablam!    Compiling num-traits v0.1.37
Sep 10 05:39:53.978 INFO kablam!    Compiling log v0.3.7
Sep 10 05:39:53.991 INFO kablam!     Checking crossbeam v0.2.10
Sep 10 05:39:53.993 INFO kablam!    Compiling x11-dl v2.12.0
Sep 10 05:39:53.995 INFO kablam!     Checking shared_library v0.1.5
Sep 10 05:39:53.997 INFO kablam!    Compiling miniz-sys v0.1.9
Sep 10 05:39:54.004 INFO kablam!     Checking unsafe-any v0.4.1
Sep 10 05:39:55.282 INFO kablam!     Checking humantime v1.0.0
Sep 10 05:39:56.086 INFO kablam!     Checking serde_json v0.9.9
Sep 10 05:39:56.443 INFO kablam!    Compiling phf_generator v0.7.21
Sep 10 05:39:57.202 INFO kablam!    Compiling tempfile v2.1.5
Sep 10 05:39:57.710 INFO kablam!     Checking pistoncore-input v0.17.1
Sep 10 05:39:57.710 INFO kablam!     Checking ordered-float v0.4.0
Sep 10 05:39:57.710 INFO kablam!     Checking arrayvec v0.3.21
Sep 10 05:39:57.730 INFO kablam!     Checking typemap v0.3.3
Sep 10 05:39:59.458 INFO kablam!     Checking serde_yaml v0.6.2
Sep 10 05:39:59.586 INFO kablam!     Checking osmesa-sys v0.1.2
Sep 10 05:40:00.754 INFO kablam!    Compiling phf_codegen v0.7.21
Sep 10 05:40:00.818 INFO kablam!    Compiling gl_generator v0.5.2
Sep 10 05:40:02.328 INFO kablam!     Checking serde-value v0.4.0
Sep 10 05:40:03.103 INFO kablam!     Checking fs2 v0.2.5
Sep 10 05:40:04.405 INFO kablam!     Checking rusttype v0.2.1
Sep 10 05:40:05.444 INFO kablam!    Compiling target_build_utils v0.3.0
Sep 10 05:40:07.599 INFO kablam!     Checking memmap v0.4.0
Sep 10 05:40:07.623 INFO kablam!     Checking flate2 v0.2.17
Sep 10 05:40:13.342 INFO kablam!     Checking pistoncore-window v0.26.2
Sep 10 05:40:13.518 INFO kablam!     Checking log4rs v0.6.2
Sep 10 05:40:13.822 INFO kablam!    Compiling glutin v0.7.4
Sep 10 05:40:13.822 INFO kablam!    Compiling gl v0.6.1
Sep 10 05:40:15.220 INFO kablam!     Checking pistoncore-event_loop v0.31.4
Sep 10 05:40:15.434 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 10 05:40:15.434 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/file.rs:25:3
Sep 10 05:40:15.434 INFO kablam!    |
Sep 10 05:40:15.434 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 10 05:40:15.434 INFO kablam!    |   ^^^^^
Sep 10 05:40:15.434 INFO kablam!    |
Sep 10 05:40:15.434 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 05:40:15.434 INFO kablam! 
Sep 10 05:40:15.434 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 10 05:40:15.434 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/console.rs:24:3
Sep 10 05:40:15.434 INFO kablam!    |
Sep 10 05:40:15.434 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 10 05:40:15.435 INFO kablam!    |   ^^^^^
Sep 10 05:40:15.435 INFO kablam!    |
Sep 10 05:40:15.435 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 05:40:15.435 INFO kablam! 
Sep 10 05:40:15.435 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 10 05:40:15.435 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 10 05:40:15.435 INFO kablam!    |
Sep 10 05:40:15.435 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 10 05:40:15.435 INFO kablam!    |   ^^^^^
Sep 10 05:40:15.435 INFO kablam!    |
Sep 10 05:40:15.435 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 05:40:15.435 INFO kablam! 
Sep 10 05:40:15.435 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 10 05:40:15.435 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 10 05:40:15.435 INFO kablam!    |
Sep 10 05:40:15.435 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 10 05:40:15.435 INFO kablam!    |   ^^^^^
Sep 10 05:40:15.435 INFO kablam!    |
Sep 10 05:40:15.435 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 05:40:15.435 INFO kablam! 
Sep 10 05:40:15.435 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 10 05:40:15.435 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 10 05:40:15.435 INFO kablam!    |
Sep 10 05:40:15.435 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 10 05:40:15.435 INFO kablam!    |   ^^^^^
Sep 10 05:40:15.435 INFO kablam!    |
Sep 10 05:40:15.435 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 05:40:15.435 INFO kablam! 
Sep 10 05:40:15.435 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 10 05:40:15.435 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/rolling_file/policy/compound/mod.rs:24:3
Sep 10 05:40:15.435 INFO kablam!    |
Sep 10 05:40:15.435 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 10 05:40:15.435 INFO kablam!    |   ^^^^^
Sep 10 05:40:15.435 INFO kablam!    |
Sep 10 05:40:15.435 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 05:40:15.435 INFO kablam! 
Sep 10 05:40:15.435 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 10 05:40:15.435 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/rolling_file/mod.rs:46:3
Sep 10 05:40:15.435 INFO kablam!    |
Sep 10 05:40:15.435 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 10 05:40:15.435 INFO kablam!    |   ^^^^^
Sep 10 05:40:15.435 INFO kablam!    |
Sep 10 05:40:15.435 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 05:40:15.435 INFO kablam! 
Sep 10 05:40:15.598 INFO kablam! error: aborting due to 7 previous errors
Sep 10 05:40:15.598 INFO kablam! 
Sep 10 05:40:15.598 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 10 05:40:15.638 INFO kablam! error: Could not compile `log4rs`.
Sep 10 05:40:15.638 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 10 05:40:27.969 INFO kablam! error: build failed
Sep 10 05:40:27.970 INFO kablam! su: No module specific data is present
Sep 10 05:40:28.544 INFO running `"docker" "rm" "-f" "d7696e6bcaf00532ad9f93853eac491247ad31cbcfe7420dc6b500412da0194b"`
Sep 10 05:40:28.639 INFO blam! d7696e6bcaf00532ad9f93853eac491247ad31cbcfe7420dc6b500412da0194b