Sep 04 11:47:57.810 INFO checking log4rs-0.7.0 against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 04 11:47:57.810 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 04 11:47:57.810 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-0/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/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 +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 11:47:57.957 INFO blam! 3e5442001f12131b1ea005c0bb404f0a28942fed3f69bf341199e5457204a94e
Sep 04 11:47:57.958 INFO running `"docker" "start" "-a" "3e5442001f12131b1ea005c0bb404f0a28942fed3f69bf341199e5457204a94e"`
Sep 04 11:47:58.737 INFO kablam!     Checking log4rs v0.7.0 (file:///source)
Sep 04 11:48:00.267 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 04 11:48:00.267 INFO kablam!   --> src/append/file.rs:25:3
Sep 04 11:48:00.267 INFO kablam!    |
Sep 04 11:48:00.267 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 04 11:48:00.267 INFO kablam!    |   ^^^^^
Sep 04 11:48:00.267 INFO kablam!    |
Sep 04 11:48:00.267 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 11:48:00.267 INFO kablam! 
Sep 04 11:48:00.267 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 04 11:48:00.268 INFO kablam!   --> src/append/console.rs:24:3
Sep 04 11:48:00.268 INFO kablam!    |
Sep 04 11:48:00.268 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 04 11:48:00.268 INFO kablam!    |   ^^^^^
Sep 04 11:48:00.268 INFO kablam!    |
Sep 04 11:48:00.268 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 11:48:00.268 INFO kablam! 
Sep 04 11:48:00.268 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 04 11:48:00.268 INFO kablam!   --> src/append/rolling_file/policy/compound/roll/delete.rs:16:3
Sep 04 11:48:00.268 INFO kablam!    |
Sep 04 11:48:00.268 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 04 11:48:00.268 INFO kablam!    |   ^^^^^
Sep 04 11:48:00.268 INFO kablam!    |
Sep 04 11:48:00.268 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 11:48:00.268 INFO kablam! 
Sep 04 11:48:00.268 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 04 11:48:00.268 INFO kablam!   --> src/append/rolling_file/policy/compound/roll/fixed_window.rs:17:3
Sep 04 11:48:00.268 INFO kablam!    |
Sep 04 11:48:00.268 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 04 11:48:00.268 INFO kablam!    |   ^^^^^
Sep 04 11:48:00.268 INFO kablam!    |
Sep 04 11:48:00.268 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 11:48:00.268 INFO kablam! 
Sep 04 11:48:00.268 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 04 11:48:00.268 INFO kablam!   --> src/append/rolling_file/policy/compound/trigger/size.rs:21:3
Sep 04 11:48:00.269 INFO kablam!    |
Sep 04 11:48:00.269 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 04 11:48:00.269 INFO kablam!    |   ^^^^^
Sep 04 11:48:00.269 INFO kablam!    |
Sep 04 11:48:00.269 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 11:48:00.269 INFO kablam! 
Sep 04 11:48:00.269 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 04 11:48:00.269 INFO kablam!   --> src/append/rolling_file/policy/compound/mod.rs:24:3
Sep 04 11:48:00.269 INFO kablam!    |
Sep 04 11:48:00.269 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 04 11:48:00.269 INFO kablam!    |   ^^^^^
Sep 04 11:48:00.269 INFO kablam!    |
Sep 04 11:48:00.269 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 11:48:00.269 INFO kablam! 
Sep 04 11:48:00.269 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 04 11:48:00.269 INFO kablam!   --> src/append/rolling_file/mod.rs:46:3
Sep 04 11:48:00.269 INFO kablam!    |
Sep 04 11:48:00.270 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 04 11:48:00.270 INFO kablam!    |   ^^^^^
Sep 04 11:48:00.270 INFO kablam!    |
Sep 04 11:48:00.270 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 11:48:00.270 INFO kablam! 
Sep 04 11:48:00.294 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 04 11:48:00.294 INFO kablam!   --> src/append/file.rs:25:3
Sep 04 11:48:00.294 INFO kablam!    |
Sep 04 11:48:00.294 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 04 11:48:00.294 INFO kablam!    |   ^^^^^
Sep 04 11:48:00.294 INFO kablam!    |
Sep 04 11:48:00.294 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 11:48:00.294 INFO kablam! 
Sep 04 11:48:00.294 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 04 11:48:00.294 INFO kablam!   --> src/append/console.rs:24:3
Sep 04 11:48:00.294 INFO kablam!    |
Sep 04 11:48:00.294 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 04 11:48:00.295 INFO kablam!    |   ^^^^^
Sep 04 11:48:00.295 INFO kablam!    |
Sep 04 11:48:00.295 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 11:48:00.295 INFO kablam! 
Sep 04 11:48:00.295 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 04 11:48:00.295 INFO kablam!   --> src/append/rolling_file/policy/compound/roll/delete.rs:16:3
Sep 04 11:48:00.295 INFO kablam!    |
Sep 04 11:48:00.295 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 04 11:48:00.295 INFO kablam!    |   ^^^^^
Sep 04 11:48:00.295 INFO kablam!    |
Sep 04 11:48:00.295 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 11:48:00.295 INFO kablam! 
Sep 04 11:48:00.295 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 04 11:48:00.295 INFO kablam!   --> src/append/rolling_file/policy/compound/roll/fixed_window.rs:17:3
Sep 04 11:48:00.295 INFO kablam!    |
Sep 04 11:48:00.295 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 04 11:48:00.295 INFO kablam!    |   ^^^^^
Sep 04 11:48:00.295 INFO kablam!    |
Sep 04 11:48:00.295 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 11:48:00.295 INFO kablam! 
Sep 04 11:48:00.295 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 04 11:48:00.295 INFO kablam!   --> src/append/rolling_file/policy/compound/trigger/size.rs:21:3
Sep 04 11:48:00.295 INFO kablam!    |
Sep 04 11:48:00.296 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 04 11:48:00.296 INFO kablam!    |   ^^^^^
Sep 04 11:48:00.296 INFO kablam!    |
Sep 04 11:48:00.296 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 11:48:00.296 INFO kablam! 
Sep 04 11:48:00.296 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 04 11:48:00.296 INFO kablam!   --> src/append/rolling_file/policy/compound/mod.rs:24:3
Sep 04 11:48:00.296 INFO kablam!    |
Sep 04 11:48:00.296 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 04 11:48:00.296 INFO kablam!    |   ^^^^^
Sep 04 11:48:00.296 INFO kablam!    |
Sep 04 11:48:00.296 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 11:48:00.296 INFO kablam! 
Sep 04 11:48:00.296 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 04 11:48:00.296 INFO kablam!   --> src/append/rolling_file/mod.rs:46:3
Sep 04 11:48:00.296 INFO kablam!    |
Sep 04 11:48:00.296 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 04 11:48:00.296 INFO kablam!    |   ^^^^^
Sep 04 11:48:00.296 INFO kablam!    |
Sep 04 11:48:00.296 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 04 11:48:00.296 INFO kablam! 
Sep 04 11:48:00.349 INFO kablam! error: aborting due to 7 previous errors
Sep 04 11:48:00.350 INFO kablam! 
Sep 04 11:48:00.350 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 04 11:48:00.356 INFO kablam! error: Could not compile `log4rs`.
Sep 04 11:48:00.356 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 04 11:48:00.411 INFO kablam! error: aborting due to 7 previous errors
Sep 04 11:48:00.411 INFO kablam! 
Sep 04 11:48:00.411 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 04 11:48:00.423 INFO kablam! error: Could not compile `log4rs`.
Sep 04 11:48:00.423 INFO kablam! 
Sep 04 11:48:00.423 INFO kablam! To learn more, run the command again with --verbose.
Sep 04 11:48:00.425 INFO kablam! su: No module specific data is present
Sep 04 11:48:00.989 INFO running `"docker" "rm" "-f" "3e5442001f12131b1ea005c0bb404f0a28942fed3f69bf341199e5457204a94e"`
Sep 04 11:48:01.098 INFO blam! 3e5442001f12131b1ea005c0bb404f0a28942fed3f69bf341199e5457204a94e