Sep 05 20:10:21.806 INFO checking AlexW-GH/rust8 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 05 20:10:21.806 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 05 20:10:21.806 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-1/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 05 20:10:22.197 INFO blam! 80f7de0236ced877a2b88093809417859b6842096dd4675c624cbdb63177fffe
Sep 05 20:10:22.199 INFO running `"docker" "start" "-a" "80f7de0236ced877a2b88093809417859b6842096dd4675c624cbdb63177fffe"`
Sep 05 20:10:23.701 INFO kablam! usermod: no changes
Sep 05 20:10:24.086 INFO kablam!    Compiling num-traits v0.1.37
Sep 05 20:10:24.086 INFO kablam!    Compiling itoa v0.3.1
Sep 05 20:10:24.086 INFO kablam!    Compiling serde v0.9.11
Sep 05 20:10:24.097 INFO kablam!    Compiling dtoa v0.4.1
Sep 05 20:10:24.102 INFO kablam!    Compiling log v0.3.7
Sep 05 20:10:24.110 INFO kablam!     Checking adler32 v1.0.0
Sep 05 20:10:24.118 INFO kablam!    Compiling phf_shared v0.7.21
Sep 05 20:10:25.217 INFO kablam!    Compiling xml-rs v0.3.6
Sep 05 20:10:25.217 INFO kablam!     Checking shared_library v0.1.5
Sep 05 20:10:25.247 INFO kablam!    Compiling x11-dl v2.12.0
Sep 05 20:10:25.783 INFO kablam!     Checking enum_primitive v0.1.1
Sep 05 20:10:26.123 INFO kablam!    Compiling miniz-sys v0.1.9
Sep 05 20:10:26.123 INFO kablam!     Checking unsafe-any v0.4.1
Sep 05 20:10:26.214 INFO kablam!     Checking yaml-rust v0.3.5
Sep 05 20:10:27.006 INFO kablam!     Checking gif v0.9.1
Sep 05 20:10:27.802 INFO kablam!     Checking humantime v1.0.0
Sep 05 20:10:27.810 INFO kablam!     Checking deflate v0.7.5
Sep 05 20:10:28.398 INFO kablam!    Compiling tempfile v2.1.5
Sep 05 20:10:29.106 INFO kablam!     Checking deque v0.3.1
Sep 05 20:10:29.122 INFO kablam!    Compiling phf_generator v0.7.21
Sep 05 20:10:29.266 INFO kablam!    Compiling phf v0.7.21
Sep 05 20:10:29.900 INFO kablam!     Checking pistoncore-input v0.17.1
Sep 05 20:10:33.947 INFO kablam!     Checking num-rational v0.1.36
Sep 05 20:10:34.074 INFO kablam!     Checking ordered-float v0.4.0
Sep 05 20:10:34.095 INFO kablam!     Checking arrayvec v0.3.21
Sep 05 20:10:34.401 INFO kablam!     Checking osmesa-sys v0.1.2
Sep 05 20:10:34.577 INFO kablam!     Checking typemap v0.3.3
Sep 05 20:10:36.395 INFO kablam!     Checking rayon v0.6.0
Sep 05 20:10:36.654 INFO kablam!    Compiling phf_codegen v0.7.21
Sep 05 20:10:37.066 INFO kablam!     Checking png v0.6.2
Sep 05 20:10:38.783 INFO kablam!    Compiling serde_codegen_internals v0.14.1
Sep 05 20:10:39.062 INFO kablam!    Compiling wayland-scanner v0.7.8
Sep 05 20:10:39.779 INFO kablam!    Compiling gl_generator v0.5.2
Sep 05 20:10:42.499 INFO kablam!     Checking fs2 v0.2.5
Sep 05 20:10:48.286 INFO kablam!    Compiling target_build_utils v0.3.0
Sep 05 20:10:49.805 INFO kablam!     Checking rusttype v0.2.1
Sep 05 20:10:49.878 INFO kablam!     Checking pistoncore-window v0.26.2
Sep 05 20:10:49.965 INFO kablam!     Checking memmap v0.4.0
Sep 05 20:10:50.268 INFO kablam!     Checking jpeg-decoder v0.1.11
Sep 05 20:10:50.801 INFO kablam!    Compiling serde_derive v0.9.11
Sep 05 20:10:54.321 INFO kablam!    Compiling wayland-client v0.7.8
Sep 05 20:10:54.330 INFO kablam!    Compiling gl v0.6.1
Sep 05 20:10:57.921 INFO kablam!    Compiling glutin v0.7.4
Sep 05 20:10:57.952 INFO kablam!     Checking flate2 v0.2.17
Sep 05 20:10:58.564 INFO kablam!     Checking pistoncore-event_loop v0.31.4
Sep 05 20:10:58.564 INFO kablam!     Checking image v0.12.3
Sep 05 20:10:59.854 INFO kablam!     Checking serde_yaml v0.6.2
Sep 05 20:10:59.965 INFO kablam!     Checking serde-value v0.4.0
Sep 05 20:11:02.074 INFO kablam!     Checking serde_json v0.9.9
Sep 05 20:11:03.582 INFO kablam!     Checking piston v0.31.4
Sep 05 20:11:05.996 INFO kablam!     Checking log4rs v0.6.2
Sep 05 20:11:06.766 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 05 20:11:06.766 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/file.rs:25:3
Sep 05 20:11:06.766 INFO kablam!    |
Sep 05 20:11:06.766 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 05 20:11:06.766 INFO kablam!    |   ^^^^^
Sep 05 20:11:06.766 INFO kablam!    |
Sep 05 20:11:06.766 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 05 20:11:06.766 INFO kablam! 
Sep 05 20:11:06.766 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 05 20:11:06.766 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/console.rs:24:3
Sep 05 20:11:06.766 INFO kablam!    |
Sep 05 20:11:06.766 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 05 20:11:06.766 INFO kablam!    |   ^^^^^
Sep 05 20:11:06.766 INFO kablam!    |
Sep 05 20:11:06.766 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 05 20:11:06.766 INFO kablam! 
Sep 05 20:11:06.766 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 05 20:11:06.766 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 05 20:11:06.766 INFO kablam!    |
Sep 05 20:11:06.766 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 05 20:11:06.766 INFO kablam!    |   ^^^^^
Sep 05 20:11:06.766 INFO kablam!    |
Sep 05 20:11:06.766 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 05 20:11:06.766 INFO kablam! 
Sep 05 20:11:06.766 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 05 20:11:06.766 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 05 20:11:06.766 INFO kablam!    |
Sep 05 20:11:06.766 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 05 20:11:06.766 INFO kablam!    |   ^^^^^
Sep 05 20:11:06.766 INFO kablam!    |
Sep 05 20:11:06.766 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 05 20:11:06.766 INFO kablam! 
Sep 05 20:11:06.766 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 05 20:11:06.766 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 05 20:11:06.766 INFO kablam!    |
Sep 05 20:11:06.766 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 05 20:11:06.766 INFO kablam!    |   ^^^^^
Sep 05 20:11:06.766 INFO kablam!    |
Sep 05 20:11:06.766 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 05 20:11:06.766 INFO kablam! 
Sep 05 20:11:06.766 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 05 20:11:06.766 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/rolling_file/policy/compound/mod.rs:24:3
Sep 05 20:11:06.767 INFO kablam!    |
Sep 05 20:11:06.767 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 05 20:11:06.767 INFO kablam!    |   ^^^^^
Sep 05 20:11:06.767 INFO kablam!    |
Sep 05 20:11:06.767 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 05 20:11:06.767 INFO kablam! 
Sep 05 20:11:06.767 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 05 20:11:06.767 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.6.2/src/append/rolling_file/mod.rs:46:3
Sep 05 20:11:06.767 INFO kablam!    |
Sep 05 20:11:06.767 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 05 20:11:06.767 INFO kablam!    |   ^^^^^
Sep 05 20:11:06.767 INFO kablam!    |
Sep 05 20:11:06.767 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 05 20:11:06.767 INFO kablam! 
Sep 05 20:11:06.847 INFO kablam! error: aborting due to 7 previous errors
Sep 05 20:11:06.847 INFO kablam! 
Sep 05 20:11:06.847 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 05 20:11:06.869 INFO kablam! error: Could not compile `log4rs`.
Sep 05 20:11:06.870 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 05 20:11:14.942 INFO kablam! error: build failed
Sep 05 20:11:14.965 INFO kablam! su: No module specific data is present
Sep 05 20:11:20.434 INFO running `"docker" "rm" "-f" "80f7de0236ced877a2b88093809417859b6842096dd4675c624cbdb63177fffe"`
Sep 05 20:11:20.785 INFO blam! 80f7de0236ced877a2b88093809417859b6842096dd4675c624cbdb63177fffe