Sep 02 08:25:18.493 INFO checking log4rs-0.8.0 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 02 08:25:18.493 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 02 08:25:18.493 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-0/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 02 08:25:18.703 INFO blam! ca0a7cff0ab06a8b44c4788ffe026c10d489c19b0c800423e48f1df9f9e81e06
Sep 02 08:25:18.703 INFO running `"docker" "start" "-a" "ca0a7cff0ab06a8b44c4788ffe026c10d489c19b0c800423e48f1df9f9e81e06"`
Sep 02 08:25:19.438 INFO kablam!     Checking log4rs v0.8.0 (file:///source)
Sep 02 08:25:20.791 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 02 08:25:20.791 INFO kablam!   --> src/append/file.rs:25:3
Sep 02 08:25:20.791 INFO kablam!    |
Sep 02 08:25:20.791 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 02 08:25:20.791 INFO kablam!    |   ^^^^^
Sep 02 08:25:20.791 INFO kablam!    |
Sep 02 08:25:20.791 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 08:25:20.791 INFO kablam! 
Sep 02 08:25:20.791 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 02 08:25:20.791 INFO kablam!   --> src/append/console.rs:24:3
Sep 02 08:25:20.791 INFO kablam!    |
Sep 02 08:25:20.791 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 02 08:25:20.791 INFO kablam!    |   ^^^^^
Sep 02 08:25:20.791 INFO kablam!    |
Sep 02 08:25:20.791 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 08:25:20.791 INFO kablam! 
Sep 02 08:25:20.792 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 02 08:25:20.792 INFO kablam!   --> src/append/rolling_file/policy/compound/roll/delete.rs:16:3
Sep 02 08:25:20.792 INFO kablam!    |
Sep 02 08:25:20.792 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 02 08:25:20.792 INFO kablam!    |   ^^^^^
Sep 02 08:25:20.792 INFO kablam!    |
Sep 02 08:25:20.792 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 08:25:20.792 INFO kablam! 
Sep 02 08:25:20.792 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 02 08:25:20.792 INFO kablam!   --> src/append/rolling_file/policy/compound/roll/fixed_window.rs:17:3
Sep 02 08:25:20.792 INFO kablam!    |
Sep 02 08:25:20.792 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 02 08:25:20.792 INFO kablam!    |   ^^^^^
Sep 02 08:25:20.792 INFO kablam!    |
Sep 02 08:25:20.792 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 08:25:20.792 INFO kablam! 
Sep 02 08:25:20.792 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 02 08:25:20.792 INFO kablam!   --> src/append/rolling_file/policy/compound/trigger/size.rs:21:3
Sep 02 08:25:20.792 INFO kablam!    |
Sep 02 08:25:20.792 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 02 08:25:20.792 INFO kablam!    |   ^^^^^
Sep 02 08:25:20.792 INFO kablam!    |
Sep 02 08:25:20.793 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 08:25:20.793 INFO kablam! 
Sep 02 08:25:20.793 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 02 08:25:20.793 INFO kablam!   --> src/append/rolling_file/policy/compound/mod.rs:24:3
Sep 02 08:25:20.793 INFO kablam!    |
Sep 02 08:25:20.793 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 02 08:25:20.793 INFO kablam!    |   ^^^^^
Sep 02 08:25:20.793 INFO kablam!    |
Sep 02 08:25:20.793 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 08:25:20.793 INFO kablam! 
Sep 02 08:25:20.793 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 02 08:25:20.793 INFO kablam!   --> src/append/rolling_file/mod.rs:46:3
Sep 02 08:25:20.793 INFO kablam!    |
Sep 02 08:25:20.793 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 02 08:25:20.793 INFO kablam!    |   ^^^^^
Sep 02 08:25:20.793 INFO kablam!    |
Sep 02 08:25:20.793 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 08:25:20.793 INFO kablam! 
Sep 02 08:25:20.850 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 02 08:25:20.850 INFO kablam!   --> src/append/file.rs:25:3
Sep 02 08:25:20.850 INFO kablam!    |
Sep 02 08:25:20.850 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 02 08:25:20.850 INFO kablam!    |   ^^^^^
Sep 02 08:25:20.850 INFO kablam!    |
Sep 02 08:25:20.850 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 08:25:20.850 INFO kablam! 
Sep 02 08:25:20.850 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 02 08:25:20.851 INFO kablam!   --> src/append/console.rs:24:3
Sep 02 08:25:20.851 INFO kablam!    |
Sep 02 08:25:20.851 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 02 08:25:20.851 INFO kablam!    |   ^^^^^
Sep 02 08:25:20.851 INFO kablam!    |
Sep 02 08:25:20.851 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 08:25:20.851 INFO kablam! 
Sep 02 08:25:20.851 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 02 08:25:20.851 INFO kablam!   --> src/append/rolling_file/policy/compound/roll/delete.rs:16:3
Sep 02 08:25:20.851 INFO kablam!    |
Sep 02 08:25:20.851 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 02 08:25:20.851 INFO kablam!    |   ^^^^^
Sep 02 08:25:20.851 INFO kablam!    |
Sep 02 08:25:20.851 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 08:25:20.851 INFO kablam! 
Sep 02 08:25:20.851 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 02 08:25:20.851 INFO kablam!   --> src/append/rolling_file/policy/compound/roll/fixed_window.rs:17:3
Sep 02 08:25:20.851 INFO kablam!    |
Sep 02 08:25:20.851 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 02 08:25:20.851 INFO kablam!    |   ^^^^^
Sep 02 08:25:20.851 INFO kablam!    |
Sep 02 08:25:20.851 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 08:25:20.851 INFO kablam! 
Sep 02 08:25:20.851 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 02 08:25:20.851 INFO kablam!   --> src/append/rolling_file/policy/compound/trigger/size.rs:21:3
Sep 02 08:25:20.851 INFO kablam!    |
Sep 02 08:25:20.851 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 02 08:25:20.851 INFO kablam!    |   ^^^^^
Sep 02 08:25:20.852 INFO kablam!    |
Sep 02 08:25:20.852 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 08:25:20.852 INFO kablam! 
Sep 02 08:25:20.852 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 02 08:25:20.852 INFO kablam!   --> src/append/rolling_file/policy/compound/mod.rs:24:3
Sep 02 08:25:20.852 INFO kablam!    |
Sep 02 08:25:20.852 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 02 08:25:20.852 INFO kablam!    |   ^^^^^
Sep 02 08:25:20.852 INFO kablam!    |
Sep 02 08:25:20.852 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 08:25:20.852 INFO kablam! 
Sep 02 08:25:20.852 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 02 08:25:20.852 INFO kablam!   --> src/append/rolling_file/mod.rs:46:3
Sep 02 08:25:20.852 INFO kablam!    |
Sep 02 08:25:20.852 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 02 08:25:20.852 INFO kablam!    |   ^^^^^
Sep 02 08:25:20.852 INFO kablam!    |
Sep 02 08:25:20.852 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 08:25:20.852 INFO kablam! 
Sep 02 08:25:20.872 INFO kablam! error: aborting due to 7 previous errors
Sep 02 08:25:20.872 INFO kablam! 
Sep 02 08:25:20.872 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 02 08:25:20.881 INFO kablam! error: Could not compile `log4rs`.
Sep 02 08:25:20.881 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 02 08:25:20.933 INFO kablam! error: aborting due to 7 previous errors
Sep 02 08:25:20.933 INFO kablam! 
Sep 02 08:25:20.933 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 02 08:25:20.945 INFO kablam! error: Could not compile `log4rs`.
Sep 02 08:25:20.945 INFO kablam! 
Sep 02 08:25:20.945 INFO kablam! To learn more, run the command again with --verbose.
Sep 02 08:25:20.946 INFO kablam! su: No module specific data is present
Sep 02 08:25:21.460 INFO running `"docker" "rm" "-f" "ca0a7cff0ab06a8b44c4788ffe026c10d489c19b0c800423e48f1df9f9e81e06"`
Sep 02 08:25:21.550 INFO blam! ca0a7cff0ab06a8b44c4788ffe026c10d489c19b0c800423e48f1df9f9e81e06