Sep 10 10:09:28.413 INFO checking self_encryption-0.12.0 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 10:09:28.413 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 10:09:28.413 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-2/try#3a2610c2a16575649896925631bf8cec4f4b1961:/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 +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 10:09:28.616 INFO blam! 7a053a53410b6140f7045f7c6a141ed61fcf8e7beeed1e05e1feeb91a7a2c327
Sep 10 10:09:28.618 INFO running `"docker" "start" "-a" "7a053a53410b6140f7045f7c6a141ed61fcf8e7beeed1e05e1feeb91a7a2c327"`
Sep 10 10:09:29.557 INFO kablam! usermod: no changes
Sep 10 10:09:29.829 INFO kablam!     Checking tiny-keccak v1.3.1
Sep 10 10:09:29.829 INFO kablam!    Compiling bzip2-sys v0.1.6
Sep 10 10:09:29.829 INFO kablam!    Compiling miniz_oxide v0.1.3
Sep 10 10:09:29.829 INFO kablam!    Compiling xattr v0.2.2
Sep 10 10:09:29.830 INFO kablam!     Checking fs2 v0.4.3
Sep 10 10:09:29.834 INFO kablam!    Compiling brotli-sys v0.3.0
Sep 10 10:09:29.836 INFO kablam!    Compiling msdos_time v0.1.6
Sep 10 10:09:29.836 INFO kablam!    Compiling miniz-sys v0.1.10
Sep 10 10:09:30.960 INFO kablam!     Checking url v1.5.1
Sep 10 10:09:31.342 INFO kablam!     Checking config_file_handler v0.9.0
Sep 10 10:09:31.366 INFO kablam!    Compiling flate2 v0.2.20
Sep 10 10:09:32.059 INFO kablam!     Checking docopt v0.8.3
Sep 10 10:09:33.202 INFO kablam!     Checking log4rs v0.7.0
Sep 10 10:09:34.342 INFO kablam!    Compiling tar v0.4.16
Sep 10 10:09:37.623 INFO kablam!    Compiling bzip2 v0.3.3
Sep 10 10:09:37.858 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 10 10:09:37.858 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/file.rs:25:3
Sep 10 10:09:37.858 INFO kablam!    |
Sep 10 10:09:37.858 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 10 10:09:37.858 INFO kablam!    |   ^^^^^
Sep 10 10:09:37.858 INFO kablam!    |
Sep 10 10:09:37.858 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 10:09:37.858 INFO kablam! 
Sep 10 10:09:37.858 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 10 10:09:37.858 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/console.rs:24:3
Sep 10 10:09:37.858 INFO kablam!    |
Sep 10 10:09:37.858 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 10 10:09:37.858 INFO kablam!    |   ^^^^^
Sep 10 10:09:37.858 INFO kablam!    |
Sep 10 10:09:37.858 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 10:09:37.858 INFO kablam! 
Sep 10 10:09:37.858 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 10 10:09:37.858 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 10 10:09:37.858 INFO kablam!    |
Sep 10 10:09:37.858 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 10 10:09:37.858 INFO kablam!    |   ^^^^^
Sep 10 10:09:37.858 INFO kablam!    |
Sep 10 10:09:37.858 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 10:09:37.859 INFO kablam! 
Sep 10 10:09:37.859 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 10 10:09:37.859 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 10 10:09:37.859 INFO kablam!    |
Sep 10 10:09:37.859 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 10 10:09:37.859 INFO kablam!    |   ^^^^^
Sep 10 10:09:37.859 INFO kablam!    |
Sep 10 10:09:37.859 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 10:09:37.859 INFO kablam! 
Sep 10 10:09:37.859 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 10 10:09:37.859 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 10 10:09:37.859 INFO kablam!    |
Sep 10 10:09:37.859 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 10 10:09:37.859 INFO kablam!    |   ^^^^^
Sep 10 10:09:37.859 INFO kablam!    |
Sep 10 10:09:37.859 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 10:09:37.859 INFO kablam! 
Sep 10 10:09:37.859 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 10 10:09:37.859 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/mod.rs:24:3
Sep 10 10:09:37.859 INFO kablam!    |
Sep 10 10:09:37.859 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 10 10:09:37.859 INFO kablam!    |   ^^^^^
Sep 10 10:09:37.859 INFO kablam!    |
Sep 10 10:09:37.859 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 10:09:37.859 INFO kablam! 
Sep 10 10:09:37.859 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 10 10:09:37.859 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/mod.rs:46:3
Sep 10 10:09:37.859 INFO kablam!    |
Sep 10 10:09:37.859 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 10 10:09:37.859 INFO kablam!    |   ^^^^^
Sep 10 10:09:37.859 INFO kablam!    |
Sep 10 10:09:37.859 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 10:09:37.859 INFO kablam! 
Sep 10 10:09:38.202 INFO kablam! error: aborting due to 7 previous errors
Sep 10 10:09:38.202 INFO kablam! 
Sep 10 10:09:38.202 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 10 10:09:38.230 INFO kablam! error: Could not compile `log4rs`.
Sep 10 10:09:38.230 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 10 10:09:48.386 INFO kablam! error: build failed
Sep 10 10:09:48.387 INFO kablam! su: No module specific data is present
Sep 10 10:09:49.025 INFO running `"docker" "rm" "-f" "7a053a53410b6140f7045f7c6a141ed61fcf8e7beeed1e05e1feeb91a7a2c327"`
Sep 10 10:09:49.107 INFO blam! 7a053a53410b6140f7045f7c6a141ed61fcf8e7beeed1e05e1feeb91a7a2c327