Sep 01 07:13:59.830 INFO checking self_encryption-0.11.2 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 01 07:13:59.831 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 01 07:13:59.831 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-0/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/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 +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 07:13:59.966 INFO blam! d7444fa9e172d24618badd597c054881ec9d2879473146e694b8d5243e495012
Sep 01 07:13:59.969 INFO running `"docker" "start" "-a" "d7444fa9e172d24618badd597c054881ec9d2879473146e694b8d5243e495012"`
Sep 01 07:14:00.852 INFO kablam!    Compiling unwrap v1.1.0
Sep 01 07:14:00.855 INFO kablam!     Checking tiny-keccak v1.3.1
Sep 01 07:14:00.855 INFO kablam!    Compiling miniz_oxide v0.1.3
Sep 01 07:14:00.857 INFO kablam!    Compiling brotli-sys v0.3.0
Sep 01 07:14:00.859 INFO kablam!     Checking memmap v0.5.2
Sep 01 07:14:00.862 INFO kablam!    Compiling msdos_time v0.1.6
Sep 01 07:14:00.865 INFO kablam!    Compiling bzip2-sys v0.1.6
Sep 01 07:14:01.588 INFO kablam!     Checking url v1.5.1
Sep 01 07:14:01.589 INFO kablam!    Compiling bzip2 v0.3.3
Sep 01 07:14:01.649 INFO kablam!    Compiling flate2 v0.2.20
Sep 01 07:14:01.663 INFO kablam!     Checking config_file_handler v0.8.3
Sep 01 07:14:02.143 INFO kablam!     Checking log4rs v0.7.0
Sep 01 07:14:04.563 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 01 07:14:04.563 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/file.rs:25:3
Sep 01 07:14:04.564 INFO kablam!    |
Sep 01 07:14:04.564 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 01 07:14:04.564 INFO kablam!    |   ^^^^^
Sep 01 07:14:04.564 INFO kablam!    |
Sep 01 07:14:04.564 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:14:04.564 INFO kablam! 
Sep 01 07:14:04.565 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 01 07:14:04.565 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/console.rs:24:3
Sep 01 07:14:04.565 INFO kablam!    |
Sep 01 07:14:04.565 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 01 07:14:04.565 INFO kablam!    |   ^^^^^
Sep 01 07:14:04.565 INFO kablam!    |
Sep 01 07:14:04.566 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:14:04.566 INFO kablam! 
Sep 01 07:14:04.566 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 01 07:14:04.566 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 01 07:14:04.567 INFO kablam!    |
Sep 01 07:14:04.567 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 01 07:14:04.567 INFO kablam!    |   ^^^^^
Sep 01 07:14:04.567 INFO kablam!    |
Sep 01 07:14:04.567 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:14:04.568 INFO kablam! 
Sep 01 07:14:04.568 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 01 07:14:04.568 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 01 07:14:04.568 INFO kablam!    |
Sep 01 07:14:04.568 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 01 07:14:04.568 INFO kablam!    |   ^^^^^
Sep 01 07:14:04.572 INFO kablam!    |
Sep 01 07:14:04.573 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:14:04.573 INFO kablam! 
Sep 01 07:14:04.574 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 01 07:14:04.574 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 01 07:14:04.574 INFO kablam!    |
Sep 01 07:14:04.574 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 01 07:14:04.574 INFO kablam!    |   ^^^^^
Sep 01 07:14:04.574 INFO kablam!    |
Sep 01 07:14:04.574 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:14:04.574 INFO kablam! 
Sep 01 07:14:04.574 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 01 07:14:04.574 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/mod.rs:24:3
Sep 01 07:14:04.575 INFO kablam!    |
Sep 01 07:14:04.575 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 01 07:14:04.575 INFO kablam!    |   ^^^^^
Sep 01 07:14:04.575 INFO kablam!    |
Sep 01 07:14:04.575 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:14:04.575 INFO kablam! 
Sep 01 07:14:04.575 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 01 07:14:04.575 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/mod.rs:46:3
Sep 01 07:14:04.575 INFO kablam!    |
Sep 01 07:14:04.575 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 01 07:14:04.575 INFO kablam!    |   ^^^^^
Sep 01 07:14:04.575 INFO kablam!    |
Sep 01 07:14:04.575 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:14:04.575 INFO kablam! 
Sep 01 07:14:04.797 INFO kablam! error: aborting due to 7 previous errors
Sep 01 07:14:04.797 INFO kablam! 
Sep 01 07:14:04.797 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 01 07:14:04.806 INFO kablam! error: Could not compile `log4rs`.
Sep 01 07:14:04.806 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 01 07:14:11.458 INFO kablam! error: build failed
Sep 01 07:14:11.460 INFO kablam! su: No module specific data is present
Sep 01 07:14:11.963 INFO running `"docker" "rm" "-f" "d7444fa9e172d24618badd597c054881ec9d2879473146e694b8d5243e495012"`
Sep 01 07:14:12.059 INFO blam! d7444fa9e172d24618badd597c054881ec9d2879473146e694b8d5243e495012