Aug 30 12:01:47.569 INFO checking log4rs-0.8.0 against try#2d477f9981361618ac78253c28051a66b6cea125 for pr-53707
Aug 30 12:01:47.569 INFO running: cargo +2d477f9981361618ac78253c28051a66b6cea125-alt check --frozen --all --all-targets
Aug 30 12:01:47.569 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53707/try#2d477f9981361618ac78253c28051a66b6cea125:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53707/worker-2/try#2d477f9981361618ac78253c28051a66b6cea125:/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 +2d477f9981361618ac78253c28051a66b6cea125-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 12:01:47.746 INFO blam! 2929fc5bb972268b6198c8bf6bc83c60be27b3475200442f92c57f1a812c1656
Aug 30 12:01:47.748 INFO running `"docker" "start" "-a" "2929fc5bb972268b6198c8bf6bc83c60be27b3475200442f92c57f1a812c1656"`
Aug 30 12:01:48.472 INFO kablam!     Checking log4rs v0.8.0 (file:///source)
Aug 30 12:01:49.734 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)
Aug 30 12:01:49.734 INFO kablam!   --> src/append/file.rs:25:3
Aug 30 12:01:49.734 INFO kablam!    |
Aug 30 12:01:49.734 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Aug 30 12:01:49.734 INFO kablam!    |   ^^^^^
Aug 30 12:01:49.734 INFO kablam!    |
Aug 30 12:01:49.734 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 12:01:49.734 INFO kablam! 
Aug 30 12:01:49.734 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)
Aug 30 12:01:49.734 INFO kablam!   --> src/append/console.rs:24:3
Aug 30 12:01:49.734 INFO kablam!    |
Aug 30 12:01:49.734 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 30 12:01:49.734 INFO kablam!    |   ^^^^^
Aug 30 12:01:49.735 INFO kablam!    |
Aug 30 12:01:49.735 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 12:01:49.735 INFO kablam! 
Aug 30 12:01:49.735 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)
Aug 30 12:01:49.735 INFO kablam!   --> src/append/rolling_file/policy/compound/roll/delete.rs:16:3
Aug 30 12:01:49.735 INFO kablam!    |
Aug 30 12:01:49.735 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Aug 30 12:01:49.735 INFO kablam!    |   ^^^^^
Aug 30 12:01:49.735 INFO kablam!    |
Aug 30 12:01:49.735 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 12:01:49.735 INFO kablam! 
Aug 30 12:01:49.735 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)
Aug 30 12:01:49.735 INFO kablam!   --> src/append/rolling_file/policy/compound/roll/fixed_window.rs:17:3
Aug 30 12:01:49.735 INFO kablam!    |
Aug 30 12:01:49.735 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Aug 30 12:01:49.735 INFO kablam!    |   ^^^^^
Aug 30 12:01:49.735 INFO kablam!    |
Aug 30 12:01:49.735 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 12:01:49.735 INFO kablam! 
Aug 30 12:01:49.735 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)
Aug 30 12:01:49.735 INFO kablam!   --> src/append/rolling_file/policy/compound/trigger/size.rs:21:3
Aug 30 12:01:49.735 INFO kablam!    |
Aug 30 12:01:49.735 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Aug 30 12:01:49.735 INFO kablam!    |   ^^^^^
Aug 30 12:01:49.735 INFO kablam!    |
Aug 30 12:01:49.735 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 12:01:49.735 INFO kablam! 
Aug 30 12:01:49.735 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)
Aug 30 12:01:49.735 INFO kablam!   --> src/append/rolling_file/policy/compound/mod.rs:24:3
Aug 30 12:01:49.735 INFO kablam!    |
Aug 30 12:01:49.735 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 30 12:01:49.735 INFO kablam!    |   ^^^^^
Aug 30 12:01:49.736 INFO kablam!    |
Aug 30 12:01:49.736 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 12:01:49.736 INFO kablam! 
Aug 30 12:01:49.736 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)
Aug 30 12:01:49.736 INFO kablam!   --> src/append/rolling_file/mod.rs:46:3
Aug 30 12:01:49.736 INFO kablam!    |
Aug 30 12:01:49.736 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Aug 30 12:01:49.736 INFO kablam!    |   ^^^^^
Aug 30 12:01:49.736 INFO kablam!    |
Aug 30 12:01:49.736 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 12:01:49.736 INFO kablam! 
Aug 30 12:01:49.844 INFO kablam! error: aborting due to 7 previous errors
Aug 30 12:01:49.844 INFO kablam! 
Aug 30 12:01:49.844 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Aug 30 12:01:49.854 INFO kablam! error: Could not compile `log4rs`.
Aug 30 12:01:49.854 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 30 12:01:49.936 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)
Aug 30 12:01:49.936 INFO kablam!   --> src/append/file.rs:25:3
Aug 30 12:01:49.936 INFO kablam!    |
Aug 30 12:01:49.936 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Aug 30 12:01:49.936 INFO kablam!    |   ^^^^^
Aug 30 12:01:49.936 INFO kablam!    |
Aug 30 12:01:49.936 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 12:01:49.936 INFO kablam! 
Aug 30 12:01:49.936 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)
Aug 30 12:01:49.936 INFO kablam!   --> src/append/console.rs:24:3
Aug 30 12:01:49.936 INFO kablam!    |
Aug 30 12:01:49.936 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 30 12:01:49.936 INFO kablam!    |   ^^^^^
Aug 30 12:01:49.936 INFO kablam!    |
Aug 30 12:01:49.936 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 12:01:49.937 INFO kablam! 
Aug 30 12:01:49.937 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)
Aug 30 12:01:49.937 INFO kablam!   --> src/append/rolling_file/policy/compound/roll/delete.rs:16:3
Aug 30 12:01:49.937 INFO kablam!    |
Aug 30 12:01:49.937 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Aug 30 12:01:49.937 INFO kablam!    |   ^^^^^
Aug 30 12:01:49.937 INFO kablam!    |
Aug 30 12:01:49.937 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 12:01:49.937 INFO kablam! 
Aug 30 12:01:49.937 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)
Aug 30 12:01:49.937 INFO kablam!   --> src/append/rolling_file/policy/compound/roll/fixed_window.rs:17:3
Aug 30 12:01:49.937 INFO kablam!    |
Aug 30 12:01:49.937 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Aug 30 12:01:49.937 INFO kablam!    |   ^^^^^
Aug 30 12:01:49.937 INFO kablam!    |
Aug 30 12:01:49.937 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 12:01:49.937 INFO kablam! 
Aug 30 12:01:49.937 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)
Aug 30 12:01:49.937 INFO kablam!   --> src/append/rolling_file/policy/compound/trigger/size.rs:21:3
Aug 30 12:01:49.937 INFO kablam!    |
Aug 30 12:01:49.937 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Aug 30 12:01:49.937 INFO kablam!    |   ^^^^^
Aug 30 12:01:49.937 INFO kablam!    |
Aug 30 12:01:49.937 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 12:01:49.937 INFO kablam! 
Aug 30 12:01:49.937 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)
Aug 30 12:01:49.937 INFO kablam!   --> src/append/rolling_file/policy/compound/mod.rs:24:3
Aug 30 12:01:49.937 INFO kablam!    |
Aug 30 12:01:49.937 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 30 12:01:49.937 INFO kablam!    |   ^^^^^
Aug 30 12:01:49.937 INFO kablam!    |
Aug 30 12:01:49.937 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 12:01:49.937 INFO kablam! 
Aug 30 12:01:49.937 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)
Aug 30 12:01:49.937 INFO kablam!   --> src/append/rolling_file/mod.rs:46:3
Aug 30 12:01:49.937 INFO kablam!    |
Aug 30 12:01:49.937 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Aug 30 12:01:49.937 INFO kablam!    |   ^^^^^
Aug 30 12:01:49.937 INFO kablam!    |
Aug 30 12:01:49.937 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 30 12:01:49.937 INFO kablam! 
Aug 30 12:01:50.004 INFO kablam! error: aborting due to 7 previous errors
Aug 30 12:01:50.004 INFO kablam! 
Aug 30 12:01:50.004 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Aug 30 12:01:50.012 INFO kablam! error: Could not compile `log4rs`.
Aug 30 12:01:50.013 INFO kablam! 
Aug 30 12:01:50.013 INFO kablam! To learn more, run the command again with --verbose.
Aug 30 12:01:50.014 INFO kablam! su: No module specific data is present
Aug 30 12:01:50.614 INFO running `"docker" "rm" "-f" "2929fc5bb972268b6198c8bf6bc83c60be27b3475200442f92c57f1a812c1656"`
Aug 30 12:01:50.695 INFO blam! 2929fc5bb972268b6198c8bf6bc83c60be27b3475200442f92c57f1a812c1656