Sep 06 04:14:06.263 INFO checking log4rs-0.7.0 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 04:14:06.263 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 04:14:06.263 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-2/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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 +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 04:14:06.402 INFO blam! a9e82f08d8da2b0c0a82029de7ef6e07626946879b44a892dd29ece180a2ee22
Sep 06 04:14:06.403 INFO running `"docker" "start" "-a" "a9e82f08d8da2b0c0a82029de7ef6e07626946879b44a892dd29ece180a2ee22"`
Sep 06 04:14:07.510 INFO kablam! usermod: no changes
Sep 06 04:14:07.625 INFO kablam!     Checking log4rs v0.7.0 (file:///source)
Sep 06 04:14:08.252 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 06 04:14:08.252 INFO kablam!   --> src/append/file.rs:25:3
Sep 06 04:14:08.252 INFO kablam!    |
Sep 06 04:14:08.253 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 06 04:14:08.253 INFO kablam!    |   ^^^^^
Sep 06 04:14:08.253 INFO kablam!    |
Sep 06 04:14:08.253 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 04:14:08.253 INFO kablam! 
Sep 06 04:14:08.253 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 06 04:14:08.253 INFO kablam!   --> src/append/console.rs:24:3
Sep 06 04:14:08.253 INFO kablam!    |
Sep 06 04:14:08.253 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 06 04:14:08.253 INFO kablam!    |   ^^^^^
Sep 06 04:14:08.253 INFO kablam!    |
Sep 06 04:14:08.253 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 04:14:08.253 INFO kablam! 
Sep 06 04:14:08.253 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 06 04:14:08.253 INFO kablam!   --> src/append/rolling_file/policy/compound/roll/delete.rs:16:3
Sep 06 04:14:08.253 INFO kablam!    |
Sep 06 04:14:08.253 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 06 04:14:08.253 INFO kablam!    |   ^^^^^
Sep 06 04:14:08.253 INFO kablam!    |
Sep 06 04:14:08.253 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 04:14:08.253 INFO kablam! 
Sep 06 04:14:08.253 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 06 04:14:08.253 INFO kablam!   --> src/append/rolling_file/policy/compound/roll/fixed_window.rs:17:3
Sep 06 04:14:08.253 INFO kablam!    |
Sep 06 04:14:08.253 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 06 04:14:08.253 INFO kablam!    |   ^^^^^
Sep 06 04:14:08.253 INFO kablam!    |
Sep 06 04:14:08.253 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 04:14:08.253 INFO kablam! 
Sep 06 04:14:08.253 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 06 04:14:08.253 INFO kablam!   --> src/append/rolling_file/policy/compound/trigger/size.rs:21:3
Sep 06 04:14:08.253 INFO kablam!    |
Sep 06 04:14:08.253 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 06 04:14:08.253 INFO kablam!    |   ^^^^^
Sep 06 04:14:08.253 INFO kablam!    |
Sep 06 04:14:08.253 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 04:14:08.253 INFO kablam! 
Sep 06 04:14:08.253 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 06 04:14:08.253 INFO kablam!   --> src/append/rolling_file/policy/compound/mod.rs:24:3
Sep 06 04:14:08.253 INFO kablam!    |
Sep 06 04:14:08.253 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 06 04:14:08.253 INFO kablam!    |   ^^^^^
Sep 06 04:14:08.253 INFO kablam!    |
Sep 06 04:14:08.253 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 04:14:08.253 INFO kablam! 
Sep 06 04:14:08.253 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 06 04:14:08.253 INFO kablam!   --> src/append/rolling_file/mod.rs:46:3
Sep 06 04:14:08.253 INFO kablam!    |
Sep 06 04:14:08.253 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 06 04:14:08.253 INFO kablam!    |   ^^^^^
Sep 06 04:14:08.253 INFO kablam!    |
Sep 06 04:14:08.253 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 04:14:08.253 INFO kablam! 
Sep 06 04:14:08.263 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 06 04:14:08.263 INFO kablam!   --> src/append/file.rs:25:3
Sep 06 04:14:08.263 INFO kablam!    |
Sep 06 04:14:08.263 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 06 04:14:08.263 INFO kablam!    |   ^^^^^
Sep 06 04:14:08.263 INFO kablam!    |
Sep 06 04:14:08.263 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 04:14:08.263 INFO kablam! 
Sep 06 04:14:08.263 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 06 04:14:08.263 INFO kablam!   --> src/append/console.rs:24:3
Sep 06 04:14:08.263 INFO kablam!    |
Sep 06 04:14:08.263 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 06 04:14:08.263 INFO kablam!    |   ^^^^^
Sep 06 04:14:08.263 INFO kablam!    |
Sep 06 04:14:08.263 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 04:14:08.263 INFO kablam! 
Sep 06 04:14:08.263 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 06 04:14:08.263 INFO kablam!   --> src/append/rolling_file/policy/compound/roll/delete.rs:16:3
Sep 06 04:14:08.263 INFO kablam!    |
Sep 06 04:14:08.263 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 06 04:14:08.263 INFO kablam!    |   ^^^^^
Sep 06 04:14:08.263 INFO kablam!    |
Sep 06 04:14:08.263 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 04:14:08.263 INFO kablam! 
Sep 06 04:14:08.263 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 06 04:14:08.263 INFO kablam!   --> src/append/rolling_file/policy/compound/roll/fixed_window.rs:17:3
Sep 06 04:14:08.263 INFO kablam!    |
Sep 06 04:14:08.263 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 06 04:14:08.263 INFO kablam!    |   ^^^^^
Sep 06 04:14:08.263 INFO kablam!    |
Sep 06 04:14:08.263 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 04:14:08.263 INFO kablam! 
Sep 06 04:14:08.263 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 06 04:14:08.263 INFO kablam!   --> src/append/rolling_file/policy/compound/trigger/size.rs:21:3
Sep 06 04:14:08.263 INFO kablam!    |
Sep 06 04:14:08.263 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 06 04:14:08.263 INFO kablam!    |   ^^^^^
Sep 06 04:14:08.263 INFO kablam!    |
Sep 06 04:14:08.263 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 04:14:08.263 INFO kablam! 
Sep 06 04:14:08.263 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 06 04:14:08.263 INFO kablam!   --> src/append/rolling_file/policy/compound/mod.rs:24:3
Sep 06 04:14:08.263 INFO kablam!    |
Sep 06 04:14:08.263 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 06 04:14:08.263 INFO kablam!    |   ^^^^^
Sep 06 04:14:08.263 INFO kablam!    |
Sep 06 04:14:08.263 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 04:14:08.263 INFO kablam! 
Sep 06 04:14:08.263 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 06 04:14:08.263 INFO kablam!   --> src/append/rolling_file/mod.rs:46:3
Sep 06 04:14:08.263 INFO kablam!    |
Sep 06 04:14:08.263 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 06 04:14:08.263 INFO kablam!    |   ^^^^^
Sep 06 04:14:08.263 INFO kablam!    |
Sep 06 04:14:08.263 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 04:14:08.263 INFO kablam! 
Sep 06 04:14:08.290 INFO kablam! error: aborting due to 7 previous errors
Sep 06 04:14:08.290 INFO kablam! 
Sep 06 04:14:08.290 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 06 04:14:08.296 INFO kablam! error: Could not compile `log4rs`.
Sep 06 04:14:08.296 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 06 04:14:08.298 INFO kablam! error: aborting due to 7 previous errors
Sep 06 04:14:08.298 INFO kablam! 
Sep 06 04:14:08.298 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 06 04:14:08.308 INFO kablam! error: Could not compile `log4rs`.
Sep 06 04:14:08.308 INFO kablam! 
Sep 06 04:14:08.308 INFO kablam! To learn more, run the command again with --verbose.
Sep 06 04:14:08.309 INFO kablam! su: No module specific data is present
Sep 06 04:14:09.196 INFO running `"docker" "rm" "-f" "a9e82f08d8da2b0c0a82029de7ef6e07626946879b44a892dd29ece180a2ee22"`
Sep 06 04:14:09.275 INFO blam! a9e82f08d8da2b0c0a82029de7ef6e07626946879b44a892dd29ece180a2ee22