Sep 06 00:19:53.096 INFO checking self_encryption-0.11.2 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 00:19:53.096 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 00:19:53.096 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 00:19:53.334 INFO blam! 4db3bd9562a950760688cbc4344fc32fec4ec9b1c469cb6eee12603452441049
Sep 06 00:19:53.336 INFO running `"docker" "start" "-a" "4db3bd9562a950760688cbc4344fc32fec4ec9b1c469cb6eee12603452441049"`
Sep 06 00:19:54.325 INFO kablam! usermod: no changes
Sep 06 00:19:54.706 INFO kablam!    Compiling adler32 v1.0.3
Sep 06 00:19:54.706 INFO kablam!    Compiling podio v0.1.6
Sep 06 00:19:54.706 INFO kablam!    Compiling unwrap v1.1.0
Sep 06 00:19:54.714 INFO kablam!     Checking tiny-keccak v1.3.1
Sep 06 00:19:54.714 INFO kablam!    Compiling xattr v0.2.2
Sep 06 00:19:54.718 INFO kablam!    Compiling filetime v0.2.1
Sep 06 00:19:54.718 INFO kablam!    Compiling brotli-sys v0.3.0
Sep 06 00:19:54.726 INFO kablam!     Checking fs2 v0.4.3
Sep 06 00:19:56.046 INFO kablam!     Checking memmap v0.5.2
Sep 06 00:19:56.054 INFO kablam!    Compiling msdos_time v0.1.6
Sep 06 00:19:56.126 INFO kablam!    Compiling miniz_oxide v0.1.3
Sep 06 00:19:57.628 INFO kablam!    Compiling crc v1.8.1
Sep 06 00:19:57.635 INFO kablam!    Compiling bzip2-sys v0.1.6
Sep 06 00:19:57.664 INFO kablam!    Compiling miniz-sys v0.1.10
Sep 06 00:19:57.776 INFO kablam!     Checking url v1.5.1
Sep 06 00:19:58.354 INFO kablam!    Compiling tar v0.4.16
Sep 06 00:19:58.530 INFO kablam!     Checking config_file_handler v0.8.3
Sep 06 00:19:58.950 INFO kablam!     Checking chrono v0.3.0
Sep 06 00:19:59.070 INFO kablam!    Compiling flate2 v0.2.20
Sep 06 00:20:00.342 INFO kablam!    Compiling bzip2 v0.3.3
Sep 06 00:20:04.694 INFO kablam!    Compiling miniz_oxide_c_api v0.1.3
Sep 06 00:20:05.367 INFO kablam!     Checking ws v0.7.3
Sep 06 00:20:08.387 INFO kablam!    Compiling flate2 v1.0.2
Sep 06 00:20:08.494 INFO kablam!     Checking log4rs v0.7.0
Sep 06 00:20:09.240 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 00:20:09.240 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/file.rs:25:3
Sep 06 00:20:09.240 INFO kablam!    |
Sep 06 00:20:09.240 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 06 00:20:09.240 INFO kablam!    |   ^^^^^
Sep 06 00:20:09.240 INFO kablam!    |
Sep 06 00:20:09.240 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 00:20:09.240 INFO kablam! 
Sep 06 00:20:09.240 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 00:20:09.240 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/console.rs:24:3
Sep 06 00:20:09.240 INFO kablam!    |
Sep 06 00:20:09.240 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 06 00:20:09.240 INFO kablam!    |   ^^^^^
Sep 06 00:20:09.240 INFO kablam!    |
Sep 06 00:20:09.240 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 00:20:09.240 INFO kablam! 
Sep 06 00:20:09.240 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 00:20:09.240 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/roll/delete.rs:16:3
Sep 06 00:20:09.240 INFO kablam!    |
Sep 06 00:20:09.240 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 06 00:20:09.240 INFO kablam!    |   ^^^^^
Sep 06 00:20:09.240 INFO kablam!    |
Sep 06 00:20:09.240 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 00:20:09.240 INFO kablam! 
Sep 06 00:20:09.241 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 00:20:09.241 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/roll/fixed_window.rs:17:3
Sep 06 00:20:09.241 INFO kablam!    |
Sep 06 00:20:09.241 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 06 00:20:09.241 INFO kablam!    |   ^^^^^
Sep 06 00:20:09.241 INFO kablam!    |
Sep 06 00:20:09.241 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 00:20:09.241 INFO kablam! 
Sep 06 00:20:09.241 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 00:20:09.241 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/trigger/size.rs:21:3
Sep 06 00:20:09.241 INFO kablam!    |
Sep 06 00:20:09.241 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 06 00:20:09.241 INFO kablam!    |   ^^^^^
Sep 06 00:20:09.241 INFO kablam!    |
Sep 06 00:20:09.241 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 00:20:09.241 INFO kablam! 
Sep 06 00:20:09.241 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 00:20:09.241 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/mod.rs:24:3
Sep 06 00:20:09.242 INFO kablam!    |
Sep 06 00:20:09.242 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 06 00:20:09.242 INFO kablam!    |   ^^^^^
Sep 06 00:20:09.242 INFO kablam!    |
Sep 06 00:20:09.242 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 00:20:09.242 INFO kablam! 
Sep 06 00:20:09.242 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 00:20:09.242 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/mod.rs:46:3
Sep 06 00:20:09.242 INFO kablam!    |
Sep 06 00:20:09.242 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 06 00:20:09.242 INFO kablam!    |   ^^^^^
Sep 06 00:20:09.242 INFO kablam!    |
Sep 06 00:20:09.242 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 00:20:09.242 INFO kablam! 
Sep 06 00:20:09.300 INFO kablam! error: aborting due to 7 previous errors
Sep 06 00:20:09.300 INFO kablam! 
Sep 06 00:20:09.300 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 06 00:20:09.313 INFO kablam! error: Could not compile `log4rs`.
Sep 06 00:20:09.313 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 06 00:20:11.298 INFO kablam! error: build failed
Sep 06 00:20:11.300 INFO kablam! su: No module specific data is present
Sep 06 00:20:11.816 INFO running `"docker" "rm" "-f" "4db3bd9562a950760688cbc4344fc32fec4ec9b1c469cb6eee12603452441049"`
Sep 06 00:20:11.885 INFO blam! 4db3bd9562a950760688cbc4344fc32fec4ec9b1c469cb6eee12603452441049