Sep 06 08:20:38.547 INFO checking crust-0.28.1 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 08:20:38.547 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 08:20:38.547 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-3/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 08:20:38.745 INFO blam! f3c0cb09d03e8bd304d471ce157ee4094c5114c1278746dfd92f8e625b5534ab
Sep 06 08:20:38.747 INFO running `"docker" "start" "-a" "f3c0cb09d03e8bd304d471ce157ee4094c5114c1278746dfd92f8e625b5534ab"`
Sep 06 08:20:39.984 INFO kablam! usermod: no changes
Sep 06 08:20:40.418 INFO kablam!     Checking clap v2.25.1
Sep 06 08:20:40.420 INFO kablam!    Compiling zip v0.2.8
Sep 06 08:20:40.442 INFO kablam!     Checking igd v0.6.0
Sep 06 08:20:40.442 INFO kablam!     Checking log4rs v0.7.0
Sep 06 08:20:43.183 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 08:20:43.183 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/file.rs:25:3
Sep 06 08:20:43.183 INFO kablam!    |
Sep 06 08:20:43.184 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 06 08:20:43.184 INFO kablam!    |   ^^^^^
Sep 06 08:20:43.184 INFO kablam!    |
Sep 06 08:20:43.184 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 08:20:43.184 INFO kablam! 
Sep 06 08:20:43.184 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 08:20:43.184 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/console.rs:24:3
Sep 06 08:20:43.184 INFO kablam!    |
Sep 06 08:20:43.184 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 06 08:20:43.184 INFO kablam!    |   ^^^^^
Sep 06 08:20:43.184 INFO kablam!    |
Sep 06 08:20:43.184 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 08:20:43.184 INFO kablam! 
Sep 06 08:20:43.184 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 08:20:43.184 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 08:20:43.184 INFO kablam!    |
Sep 06 08:20:43.184 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 06 08:20:43.184 INFO kablam!    |   ^^^^^
Sep 06 08:20:43.184 INFO kablam!    |
Sep 06 08:20:43.184 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 08:20:43.184 INFO kablam! 
Sep 06 08:20:43.184 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 08:20:43.184 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 08:20:43.184 INFO kablam!    |
Sep 06 08:20:43.184 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 06 08:20:43.184 INFO kablam!    |   ^^^^^
Sep 06 08:20:43.184 INFO kablam!    |
Sep 06 08:20:43.185 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 08:20:43.185 INFO kablam! 
Sep 06 08:20:43.185 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 08:20:43.185 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 08:20:43.185 INFO kablam!    |
Sep 06 08:20:43.185 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 06 08:20:43.185 INFO kablam!    |   ^^^^^
Sep 06 08:20:43.185 INFO kablam!    |
Sep 06 08:20:43.185 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 08:20:43.185 INFO kablam! 
Sep 06 08:20:43.186 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 08:20:43.186 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 08:20:43.186 INFO kablam!    |
Sep 06 08:20:43.186 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 06 08:20:43.186 INFO kablam!    |   ^^^^^
Sep 06 08:20:43.186 INFO kablam!    |
Sep 06 08:20:43.186 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 08:20:43.186 INFO kablam! 
Sep 06 08:20:43.186 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 08:20:43.186 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/mod.rs:46:3
Sep 06 08:20:43.186 INFO kablam!    |
Sep 06 08:20:43.186 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 06 08:20:43.186 INFO kablam!    |   ^^^^^
Sep 06 08:20:43.186 INFO kablam!    |
Sep 06 08:20:43.186 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 08:20:43.186 INFO kablam! 
Sep 06 08:20:43.265 INFO kablam! error: aborting due to 7 previous errors
Sep 06 08:20:43.265 INFO kablam! 
Sep 06 08:20:43.265 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 06 08:20:43.282 INFO kablam! error: Could not compile `log4rs`.
Sep 06 08:20:43.282 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 06 08:20:49.689 INFO kablam! error: build failed
Sep 06 08:20:49.691 INFO kablam! su: No module specific data is present
Sep 06 08:20:51.616 INFO running `"docker" "rm" "-f" "f3c0cb09d03e8bd304d471ce157ee4094c5114c1278746dfd92f8e625b5534ab"`
Sep 06 08:20:51.736 INFO blam! f3c0cb09d03e8bd304d471ce157ee4094c5114c1278746dfd92f8e625b5534ab