Sep 01 17:54:04.307 INFO checking AlexW-GH/rust8 against try#952c7dbfa2628309f557b367929ffc17af20b332 for pr-53851
Sep 01 17:54:04.307 INFO running: cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets
Sep 01 17:54:04.307 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53851/try#952c7dbfa2628309f557b367929ffc17af20b332:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-0/try#952c7dbfa2628309f557b367929ffc17af20b332:/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 +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 17:54:04.473 INFO blam! ed704662cd32f0bcd6396136f148f51674afebd49fe47ddf035622b20b7533dd
Sep 01 17:54:04.476 INFO running `"docker" "start" "-a" "ed704662cd32f0bcd6396136f148f51674afebd49fe47ddf035622b20b7533dd"`
Sep 01 17:54:05.329 INFO kablam!     Checking unsafe-any v0.4.1
Sep 01 17:54:05.329 INFO kablam!     Checking serde_json v0.9.9
Sep 01 17:54:05.330 INFO kablam!     Checking humantime v1.0.0
Sep 01 17:54:05.330 INFO kablam!    Compiling phf_generator v0.7.21
Sep 01 17:54:05.332 INFO kablam!     Checking pistoncore-input v0.17.1
Sep 01 17:54:05.333 INFO kablam!     Checking ordered-float v0.4.0
Sep 01 17:54:05.333 INFO kablam!     Checking arrayvec v0.3.21
Sep 01 17:54:05.338 INFO kablam!    Compiling gl v0.6.1
Sep 01 17:54:05.910 INFO kablam!     Checking typemap v0.3.3
Sep 01 17:54:06.815 INFO kablam!    Compiling phf_codegen v0.7.21
Sep 01 17:54:07.849 INFO kablam!     Checking serde-value v0.4.0
Sep 01 17:54:09.145 INFO kablam!    Compiling target_build_utils v0.3.0
Sep 01 17:54:09.999 INFO kablam!     Checking rusttype v0.2.1
Sep 01 17:54:16.129 INFO kablam!     Checking log4rs v0.6.2
Sep 01 17:54:18.421 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 17:54:18.421 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/file.rs:25:3
Sep 01 17:54:18.421 INFO kablam!    |
Sep 01 17:54:18.421 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 01 17:54:18.421 INFO kablam!    |   ^^^^^
Sep 01 17:54:18.421 INFO kablam!    |
Sep 01 17:54:18.421 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 17:54:18.421 INFO kablam! 
Sep 01 17:54:18.422 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 17:54:18.422 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/console.rs:24:3
Sep 01 17:54:18.422 INFO kablam!    |
Sep 01 17:54:18.423 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 01 17:54:18.423 INFO kablam!    |   ^^^^^
Sep 01 17:54:18.423 INFO kablam!    |
Sep 01 17:54:18.423 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 17:54:18.423 INFO kablam! 
Sep 01 17:54:18.423 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 17:54:18.423 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/rolling_file/policy/compound/roll/delete.rs:16:3
Sep 01 17:54:18.423 INFO kablam!    |
Sep 01 17:54:18.423 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 01 17:54:18.423 INFO kablam!    |   ^^^^^
Sep 01 17:54:18.423 INFO kablam!    |
Sep 01 17:54:18.423 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 17:54:18.423 INFO kablam! 
Sep 01 17:54:18.423 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 17:54:18.423 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/rolling_file/policy/compound/roll/fixed_window.rs:17:3
Sep 01 17:54:18.423 INFO kablam!    |
Sep 01 17:54:18.423 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 01 17:54:18.423 INFO kablam!    |   ^^^^^
Sep 01 17:54:18.423 INFO kablam!    |
Sep 01 17:54:18.423 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 17:54:18.423 INFO kablam! 
Sep 01 17:54:18.423 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 17:54:18.424 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/rolling_file/policy/compound/trigger/size.rs:21:3
Sep 01 17:54:18.424 INFO kablam!    |
Sep 01 17:54:18.424 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 01 17:54:18.424 INFO kablam!    |   ^^^^^
Sep 01 17:54:18.424 INFO kablam!    |
Sep 01 17:54:18.424 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 17:54:18.424 INFO kablam! 
Sep 01 17:54:18.424 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 17:54:18.424 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/rolling_file/policy/compound/mod.rs:24:3
Sep 01 17:54:18.424 INFO kablam!    |
Sep 01 17:54:18.424 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 01 17:54:18.424 INFO kablam!    |   ^^^^^
Sep 01 17:54:18.424 INFO kablam!    |
Sep 01 17:54:18.424 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 17:54:18.424 INFO kablam! 
Sep 01 17:54:18.424 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 17:54:18.424 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/rolling_file/mod.rs:46:3
Sep 01 17:54:18.424 INFO kablam!    |
Sep 01 17:54:18.424 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 01 17:54:18.424 INFO kablam!    |   ^^^^^
Sep 01 17:54:18.426 INFO kablam!    |
Sep 01 17:54:18.426 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 17:54:18.427 INFO kablam! 
Sep 01 17:54:18.607 INFO kablam! error: aborting due to 7 previous errors
Sep 01 17:54:18.607 INFO kablam! 
Sep 01 17:54:18.607 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 01 17:54:18.639 INFO kablam! error: Could not compile `log4rs`.
Sep 01 17:54:18.639 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 01 17:54:26.622 INFO kablam! error: build failed
Sep 01 17:54:26.626 INFO kablam! su: No module specific data is present
Sep 01 17:54:27.127 INFO running `"docker" "rm" "-f" "ed704662cd32f0bcd6396136f148f51674afebd49fe47ddf035622b20b7533dd"`
Sep 01 17:54:27.296 INFO blam! ed704662cd32f0bcd6396136f148f51674afebd49fe47ddf035622b20b7533dd