Sep 01 17:54:04.540 INFO checking AlexW-GH/rust8 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 01 17:54:04.540 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 01 17:54:04.540 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-3/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 17:54:04.709 INFO blam! ab8fdc8fefd3ab390fdd439dccb6fdd61a08993e405499fdeeeb8716b82cff11
Sep 01 17:54:04.711 INFO running `"docker" "start" "-a" "ab8fdc8fefd3ab390fdd439dccb6fdd61a08993e405499fdeeeb8716b82cff11"`
Sep 01 17:54:05.669 INFO kablam!    Compiling serde v0.9.11
Sep 01 17:54:05.676 INFO kablam!    Compiling miniz-sys v0.1.9
Sep 01 17:54:05.679 INFO kablam!     Checking yaml-rust v0.3.5
Sep 01 17:54:05.697 INFO kablam!     Checking humantime v1.0.0
Sep 01 17:54:05.700 INFO kablam!    Compiling phf_generator v0.7.21
Sep 01 17:54:05.740 INFO kablam!    Compiling gl_generator v0.5.2
Sep 01 17:54:05.741 INFO kablam!     Checking pistoncore-input v0.17.1
Sep 01 17:54:07.282 INFO kablam!    Compiling syn v0.11.9
Sep 01 17:54:08.155 INFO kablam!     Checking arrayvec v0.3.21
Sep 01 17:54:08.765 INFO kablam!    Compiling phf_codegen v0.7.21
Sep 01 17:54:11.402 INFO kablam!    Compiling target_build_utils v0.3.0
Sep 01 17:54:13.634 INFO kablam!     Checking rusttype v0.2.1
Sep 01 17:54:20.843 INFO kablam!     Checking flate2 v0.2.17
Sep 01 17:54:22.745 INFO kablam!     Checking pistoncore-window v0.26.2
Sep 01 17:54:22.765 INFO kablam!    Compiling glutin v0.7.4
Sep 01 17:54:24.711 INFO kablam!    Compiling gl v0.6.1
Sep 01 17:54:25.396 INFO kablam!     Checking pistoncore-event_loop v0.31.4
Sep 01 17:54:31.253 INFO kablam!     Checking piston v0.31.4
Sep 01 17:54:31.518 INFO kablam!    Compiling serde_codegen_internals v0.14.1
Sep 01 17:54:34.894 INFO kablam!    Compiling serde_derive v0.9.11
Sep 01 17:54:39.731 INFO kablam!     Checking serde_yaml v0.6.2
Sep 01 17:54:39.731 INFO kablam!     Checking serde-value v0.4.0
Sep 01 17:54:39.731 INFO kablam!     Checking serde_json v0.9.9
Sep 01 17:54:46.667 INFO kablam!     Checking log4rs v0.6.2
Sep 01 17:54:47.536 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 17:54:47.536 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/file.rs:25:3
Sep 01 17:54:47.536 INFO kablam!    |
Sep 01 17:54:47.536 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 01 17:54:47.536 INFO kablam!    |   ^^^^^
Sep 01 17:54:47.536 INFO kablam!    |
Sep 01 17:54:47.536 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 17:54:47.537 INFO kablam! 
Sep 01 17:54:47.537 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 17:54:47.537 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/console.rs:24:3
Sep 01 17:54:47.537 INFO kablam!    |
Sep 01 17:54:47.537 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 01 17:54:47.537 INFO kablam!    |   ^^^^^
Sep 01 17:54:47.537 INFO kablam!    |
Sep 01 17:54:47.537 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 17:54:47.537 INFO kablam! 
Sep 01 17:54:47.537 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 17:54:47.538 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 17:54:47.538 INFO kablam!    |
Sep 01 17:54:47.538 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 01 17:54:47.538 INFO kablam!    |   ^^^^^
Sep 01 17:54:47.538 INFO kablam!    |
Sep 01 17:54:47.538 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 17:54:47.538 INFO kablam! 
Sep 01 17:54:47.538 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 17:54:47.538 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 17:54:47.538 INFO kablam!    |
Sep 01 17:54:47.538 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 01 17:54:47.538 INFO kablam!    |   ^^^^^
Sep 01 17:54:47.538 INFO kablam!    |
Sep 01 17:54:47.538 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 17:54:47.538 INFO kablam! 
Sep 01 17:54:47.538 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 17:54:47.538 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 17:54:47.538 INFO kablam!    |
Sep 01 17:54:47.538 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 01 17:54:47.538 INFO kablam!    |   ^^^^^
Sep 01 17:54:47.538 INFO kablam!    |
Sep 01 17:54:47.538 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 17:54:47.538 INFO kablam! 
Sep 01 17:54:47.538 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 17:54:47.538 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 17:54:47.538 INFO kablam!    |
Sep 01 17:54:47.538 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 01 17:54:47.538 INFO kablam!    |   ^^^^^
Sep 01 17:54:47.538 INFO kablam!    |
Sep 01 17:54:47.538 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 17:54:47.538 INFO kablam! 
Sep 01 17:54:47.538 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 17:54:47.538 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/rolling_file/mod.rs:46:3
Sep 01 17:54:47.538 INFO kablam!    |
Sep 01 17:54:47.538 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 01 17:54:47.538 INFO kablam!    |   ^^^^^
Sep 01 17:54:47.538 INFO kablam!    |
Sep 01 17:54:47.538 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 17:54:47.538 INFO kablam! 
Sep 01 17:54:47.568 INFO kablam! error: aborting due to 7 previous errors
Sep 01 17:54:47.568 INFO kablam! 
Sep 01 17:54:47.568 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 01 17:54:47.575 INFO kablam! error: Could not compile `log4rs`.
Sep 01 17:54:47.575 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 01 17:54:51.055 INFO kablam! error: build failed
Sep 01 17:54:51.057 INFO kablam! su: No module specific data is present
Sep 01 17:54:51.424 INFO running `"docker" "rm" "-f" "ab8fdc8fefd3ab390fdd439dccb6fdd61a08993e405499fdeeeb8716b82cff11"`
Sep 01 17:54:51.524 INFO blam! ab8fdc8fefd3ab390fdd439dccb6fdd61a08993e405499fdeeeb8716b82cff11