Sep 06 00:19:47.040 INFO checking self_encryption-0.12.0 against master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6 for pr-53854
Sep 06 00:19:47.040 INFO running: cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets
Sep 06 00:19:47.040 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-53854/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-4/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/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 +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 00:19:47.277 INFO blam! bdf0ac1901553b54c9491705aa3ace4f453c890b2c0e589fca55312193f8c71b
Sep 06 00:19:47.278 INFO running `"docker" "start" "-a" "bdf0ac1901553b54c9491705aa3ace4f453c890b2c0e589fca55312193f8c71b"`
Sep 06 00:19:48.194 INFO kablam! usermod: no changes
Sep 06 00:19:48.530 INFO kablam!    Compiling podio v0.1.6
Sep 06 00:19:48.530 INFO kablam!    Compiling unwrap v1.1.0
Sep 06 00:19:48.530 INFO kablam!     Checking tiny-keccak v1.3.1
Sep 06 00:19:48.538 INFO kablam!    Compiling xattr v0.2.2
Sep 06 00:19:48.538 INFO kablam!    Compiling miniz_oxide v0.1.3
Sep 06 00:19:48.538 INFO kablam!    Compiling filetime v0.2.1
Sep 06 00:19:48.538 INFO kablam!    Compiling brotli-sys v0.3.0
Sep 06 00:19:48.538 INFO kablam!     Checking memmap v0.5.2
Sep 06 00:19:49.748 INFO kablam!    Compiling msdos_time v0.1.6
Sep 06 00:19:50.184 INFO kablam!    Compiling bzip2-sys v0.1.6
Sep 06 00:19:50.927 INFO kablam!    Compiling miniz-sys v0.1.10
Sep 06 00:19:51.892 INFO kablam!     Checking url v1.5.1
Sep 06 00:19:51.923 INFO kablam!    Compiling bzip2 v0.3.3
Sep 06 00:19:51.923 INFO kablam!    Compiling flate2 v0.2.20
Sep 06 00:19:51.923 INFO kablam!     Checking config_file_handler v0.9.0
Sep 06 00:19:51.926 INFO kablam!     Checking docopt v0.8.3
Sep 06 00:19:51.946 INFO kablam!     Checking log4rs v0.7.0
Sep 06 00:19:54.601 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 00:19:54.601 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/file.rs:25:3
Sep 06 00:19:54.601 INFO kablam!    |
Sep 06 00:19:54.601 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 06 00:19:54.601 INFO kablam!    |   ^^^^^
Sep 06 00:19:54.601 INFO kablam!    |
Sep 06 00:19:54.601 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 00:19:54.601 INFO kablam! 
Sep 06 00:19:54.601 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 00:19:54.601 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/console.rs:24:3
Sep 06 00:19:54.601 INFO kablam!    |
Sep 06 00:19:54.601 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 06 00:19:54.601 INFO kablam!    |   ^^^^^
Sep 06 00:19:54.602 INFO kablam!    |
Sep 06 00:19:54.602 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 00:19:54.602 INFO kablam! 
Sep 06 00:19:54.602 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 00:19:54.602 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 00:19:54.602 INFO kablam!    |
Sep 06 00:19:54.602 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 06 00:19:54.602 INFO kablam!    |   ^^^^^
Sep 06 00:19:54.602 INFO kablam!    |
Sep 06 00:19:54.602 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 00:19:54.602 INFO kablam! 
Sep 06 00:19:54.602 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 00:19:54.602 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 00:19:54.602 INFO kablam!    |
Sep 06 00:19:54.602 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 06 00:19:54.602 INFO kablam!    |   ^^^^^
Sep 06 00:19:54.602 INFO kablam!    |
Sep 06 00:19:54.602 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 00:19:54.602 INFO kablam! 
Sep 06 00:19:54.602 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 00:19:54.602 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 00:19:54.602 INFO kablam!    |
Sep 06 00:19:54.602 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 06 00:19:54.602 INFO kablam!    |   ^^^^^
Sep 06 00:19:54.602 INFO kablam!    |
Sep 06 00:19:54.602 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 00:19:54.602 INFO kablam! 
Sep 06 00:19:54.602 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 00:19:54.602 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 00:19:54.602 INFO kablam!    |
Sep 06 00:19:54.602 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 06 00:19:54.602 INFO kablam!    |   ^^^^^
Sep 06 00:19:54.602 INFO kablam!    |
Sep 06 00:19:54.602 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 00:19:54.602 INFO kablam! 
Sep 06 00:19:54.602 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 00:19:54.602 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/mod.rs:46:3
Sep 06 00:19:54.602 INFO kablam!    |
Sep 06 00:19:54.602 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 06 00:19:54.602 INFO kablam!    |   ^^^^^
Sep 06 00:19:54.602 INFO kablam!    |
Sep 06 00:19:54.602 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 00:19:54.602 INFO kablam! 
Sep 06 00:19:54.666 INFO kablam! error: aborting due to 7 previous errors
Sep 06 00:19:54.666 INFO kablam! 
Sep 06 00:19:54.666 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 06 00:19:54.670 INFO kablam! error: Could not compile `log4rs`.
Sep 06 00:19:54.670 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 06 00:19:56.590 INFO kablam! error: build failed
Sep 06 00:19:56.590 INFO kablam! su: No module specific data is present
Sep 06 00:19:57.853 INFO running `"docker" "rm" "-f" "bdf0ac1901553b54c9491705aa3ace4f453c890b2c0e589fca55312193f8c71b"`
Sep 06 00:19:57.971 INFO blam! bdf0ac1901553b54c9491705aa3ace4f453c890b2c0e589fca55312193f8c71b