Sep 01 07:15:59.381 INFO checking secure_serialisation-0.5.0 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 01 07:15:59.381 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 01 07:15:59.381 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-2/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 07:15:59.546 INFO blam! 4afaba107ca7da612ec27a2e717dc3f93e11e552a2adf9227b01744834056d7c
Sep 01 07:15:59.548 INFO running `"docker" "start" "-a" "4afaba107ca7da612ec27a2e717dc3f93e11e552a2adf9227b01744834056d7c"`
Sep 01 07:16:00.369 INFO kablam!    Compiling unwrap v1.1.0
Sep 01 07:16:00.373 INFO kablam!    Compiling miniz_oxide v0.1.3
Sep 01 07:16:00.377 INFO kablam!    Compiling msdos_time v0.1.6
Sep 01 07:16:00.380 INFO kablam!    Compiling bzip2-sys v0.1.6
Sep 01 07:16:00.383 INFO kablam!     Checking url v1.5.1
Sep 01 07:16:00.384 INFO kablam!     Checking config_file_handler v0.8.3
Sep 01 07:16:00.385 INFO kablam!     Checking serde-value v0.5.2
Sep 01 07:16:00.967 INFO kablam!    Compiling bzip2 v0.3.3
Sep 01 07:16:01.997 INFO kablam!     Checking log4rs v0.7.0
Sep 01 07:16:03.136 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 07:16:03.136 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/file.rs:25:3
Sep 01 07:16:03.136 INFO kablam!    |
Sep 01 07:16:03.136 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 01 07:16:03.136 INFO kablam!    |   ^^^^^
Sep 01 07:16:03.136 INFO kablam!    |
Sep 01 07:16:03.137 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:16:03.137 INFO kablam! 
Sep 01 07:16:03.137 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 07:16:03.137 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/console.rs:24:3
Sep 01 07:16:03.137 INFO kablam!    |
Sep 01 07:16:03.137 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 01 07:16:03.137 INFO kablam!    |   ^^^^^
Sep 01 07:16:03.137 INFO kablam!    |
Sep 01 07:16:03.137 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:16:03.137 INFO kablam! 
Sep 01 07:16:03.137 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 07:16:03.137 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 07:16:03.137 INFO kablam!    |
Sep 01 07:16:03.137 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 01 07:16:03.137 INFO kablam!    |   ^^^^^
Sep 01 07:16:03.137 INFO kablam!    |
Sep 01 07:16:03.137 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:16:03.137 INFO kablam! 
Sep 01 07:16:03.137 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 07:16:03.137 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 07:16:03.137 INFO kablam!    |
Sep 01 07:16:03.137 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 01 07:16:03.137 INFO kablam!    |   ^^^^^
Sep 01 07:16:03.137 INFO kablam!    |
Sep 01 07:16:03.137 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:16:03.138 INFO kablam! 
Sep 01 07:16:03.138 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 07:16:03.138 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 07:16:03.138 INFO kablam!    |
Sep 01 07:16:03.138 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 01 07:16:03.138 INFO kablam!    |   ^^^^^
Sep 01 07:16:03.138 INFO kablam!    |
Sep 01 07:16:03.138 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:16:03.138 INFO kablam! 
Sep 01 07:16:03.138 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 07:16:03.138 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 07:16:03.138 INFO kablam!    |
Sep 01 07:16:03.138 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 01 07:16:03.138 INFO kablam!    |   ^^^^^
Sep 01 07:16:03.138 INFO kablam!    |
Sep 01 07:16:03.138 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:16:03.138 INFO kablam! 
Sep 01 07:16:03.138 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 07:16:03.138 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/mod.rs:46:3
Sep 01 07:16:03.138 INFO kablam!    |
Sep 01 07:16:03.138 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 01 07:16:03.138 INFO kablam!    |   ^^^^^
Sep 01 07:16:03.138 INFO kablam!    |
Sep 01 07:16:03.138 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 07:16:03.138 INFO kablam! 
Sep 01 07:16:03.259 INFO kablam! error: aborting due to 7 previous errors
Sep 01 07:16:03.259 INFO kablam! 
Sep 01 07:16:03.260 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 01 07:16:03.269 INFO kablam! error: Could not compile `log4rs`.
Sep 01 07:16:03.269 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 01 07:16:03.638 INFO kablam! error: build failed
Sep 01 07:16:03.640 INFO kablam! su: No module specific data is present
Sep 01 07:16:04.245 INFO running `"docker" "rm" "-f" "4afaba107ca7da612ec27a2e717dc3f93e11e552a2adf9227b01744834056d7c"`
Sep 01 07:16:04.345 INFO blam! 4afaba107ca7da612ec27a2e717dc3f93e11e552a2adf9227b01744834056d7c