Aug 31 14:27:00.777 INFO checking secure_serialisation-0.5.0 against try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b for pr-53578
Aug 31 14:27:00.777 INFO running: cargo +a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b-alt check --frozen --all --all-targets
Aug 31 14:27:00.778 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53578/try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-1/try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b:/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 +a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 31 14:27:00.954 INFO blam! f7b4c6244774b3ffdf299ebceca82c4227a27324e812fefc4e78e13562112a0f
Aug 31 14:27:00.956 INFO running `"docker" "start" "-a" "f7b4c6244774b3ffdf299ebceca82c4227a27324e812fefc4e78e13562112a0f"`
Aug 31 14:27:01.879 INFO kablam!    Compiling miniz_oxide_c_api v0.1.3
Aug 31 14:27:01.881 INFO kablam!     Checking ws v0.7.3
Aug 31 14:27:01.886 INFO kablam!     Checking config_file_handler v0.8.3
Aug 31 14:27:01.889 INFO kablam!     Checking log4rs v0.7.0
Aug 31 14:27:03.210 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)
Aug 31 14:27:03.210 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/file.rs:25:3
Aug 31 14:27:03.210 INFO kablam!    |
Aug 31 14:27:03.210 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Aug 31 14:27:03.210 INFO kablam!    |   ^^^^^
Aug 31 14:27:03.210 INFO kablam!    |
Aug 31 14:27:03.210 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 31 14:27:03.210 INFO kablam! 
Aug 31 14:27:03.211 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)
Aug 31 14:27:03.211 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/console.rs:24:3
Aug 31 14:27:03.212 INFO kablam!    |
Aug 31 14:27:03.212 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 31 14:27:03.212 INFO kablam!    |   ^^^^^
Aug 31 14:27:03.212 INFO kablam!    |
Aug 31 14:27:03.212 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 31 14:27:03.212 INFO kablam! 
Aug 31 14:27:03.212 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)
Aug 31 14:27:03.212 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/roll/delete.rs:16:3
Aug 31 14:27:03.212 INFO kablam!    |
Aug 31 14:27:03.212 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Aug 31 14:27:03.212 INFO kablam!    |   ^^^^^
Aug 31 14:27:03.212 INFO kablam!    |
Aug 31 14:27:03.212 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 31 14:27:03.212 INFO kablam! 
Aug 31 14:27:03.212 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)
Aug 31 14:27:03.212 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
Aug 31 14:27:03.212 INFO kablam!    |
Aug 31 14:27:03.212 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Aug 31 14:27:03.212 INFO kablam!    |   ^^^^^
Aug 31 14:27:03.212 INFO kablam!    |
Aug 31 14:27:03.212 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 31 14:27:03.212 INFO kablam! 
Aug 31 14:27:03.213 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)
Aug 31 14:27:03.213 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/trigger/size.rs:21:3
Aug 31 14:27:03.213 INFO kablam!    |
Aug 31 14:27:03.213 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Aug 31 14:27:03.213 INFO kablam!    |   ^^^^^
Aug 31 14:27:03.213 INFO kablam!    |
Aug 31 14:27:03.213 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 31 14:27:03.213 INFO kablam! 
Aug 31 14:27:03.213 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)
Aug 31 14:27:03.213 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/mod.rs:24:3
Aug 31 14:27:03.213 INFO kablam!    |
Aug 31 14:27:03.213 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Aug 31 14:27:03.213 INFO kablam!    |   ^^^^^
Aug 31 14:27:03.213 INFO kablam!    |
Aug 31 14:27:03.213 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 31 14:27:03.213 INFO kablam! 
Aug 31 14:27:03.213 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)
Aug 31 14:27:03.213 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/mod.rs:46:3
Aug 31 14:27:03.213 INFO kablam!    |
Aug 31 14:27:03.213 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Aug 31 14:27:03.214 INFO kablam!    |   ^^^^^
Aug 31 14:27:03.214 INFO kablam!    |
Aug 31 14:27:03.214 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Aug 31 14:27:03.214 INFO kablam! 
Aug 31 14:27:03.347 INFO kablam! error: aborting due to 7 previous errors
Aug 31 14:27:03.347 INFO kablam! 
Aug 31 14:27:03.347 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Aug 31 14:27:03.357 INFO kablam! error: Could not compile `log4rs`.
Aug 31 14:27:03.357 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 31 14:27:06.076 INFO kablam! error: build failed
Aug 31 14:27:06.077 INFO kablam! su: No module specific data is present
Aug 31 14:27:06.529 INFO running `"docker" "rm" "-f" "f7b4c6244774b3ffdf299ebceca82c4227a27324e812fefc4e78e13562112a0f"`
Aug 31 14:27:06.640 INFO blam! f7b4c6244774b3ffdf299ebceca82c4227a27324e812fefc4e78e13562112a0f