Sep 10 20:40:38.865 INFO checking crust-0.31.0 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 20:40:38.865 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 20:40:38.866 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-4/try#3a2610c2a16575649896925631bf8cec4f4b1961:/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 +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 20:40:39.012 INFO blam! c4520710df708756169ed9b362899b19182c315aa8d3bda033bd585e8f33ccd5
Sep 10 20:40:39.012 INFO running `"docker" "start" "-a" "c4520710df708756169ed9b362899b19182c315aa8d3bda033bd585e8f33ccd5"`
Sep 10 20:40:40.078 INFO kablam! usermod: no changes
Sep 10 20:40:40.774 INFO kablam!    Compiling byteorder v1.1.0
Sep 10 20:40:40.789 INFO kablam!    Compiling unwrap v1.2.1
Sep 10 20:40:40.818 INFO kablam!    Compiling want v0.0.4
Sep 10 20:40:40.818 INFO kablam!    Compiling mio v0.6.16
Sep 10 20:40:40.818 INFO kablam!    Compiling url v1.5.1
Sep 10 20:40:40.866 INFO kablam!     Checking clap v2.25.1
Sep 10 20:40:40.866 INFO kablam!    Compiling tokio-threadpool v0.1.6
Sep 10 20:40:41.746 INFO kablam!     Checking igd v0.6.0
Sep 10 20:40:42.858 INFO kablam!     Checking config_file_handler v0.11.0
Sep 10 20:40:43.871 INFO kablam!     Checking log4rs v0.7.0
Sep 10 20:40:48.135 INFO kablam!    Compiling bytes v0.4.10
Sep 10 20:40:48.137 INFO kablam!    Compiling base64 v0.9.2
Sep 10 20:40:49.602 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 10 20:40:49.602 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/file.rs:25:3
Sep 10 20:40:49.602 INFO kablam!    |
Sep 10 20:40:49.602 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 10 20:40:49.602 INFO kablam!    |   ^^^^^
Sep 10 20:40:49.602 INFO kablam!    |
Sep 10 20:40:49.602 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 20:40:49.602 INFO kablam! 
Sep 10 20:40:49.602 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 10 20:40:49.602 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/console.rs:24:3
Sep 10 20:40:49.602 INFO kablam!    |
Sep 10 20:40:49.602 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 10 20:40:49.602 INFO kablam!    |   ^^^^^
Sep 10 20:40:49.602 INFO kablam!    |
Sep 10 20:40:49.602 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 20:40:49.602 INFO kablam! 
Sep 10 20:40:49.602 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 10 20:40:49.602 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 10 20:40:49.602 INFO kablam!    |
Sep 10 20:40:49.602 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 10 20:40:49.602 INFO kablam!    |   ^^^^^
Sep 10 20:40:49.602 INFO kablam!    |
Sep 10 20:40:49.602 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 20:40:49.602 INFO kablam! 
Sep 10 20:40:49.602 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 10 20:40:49.602 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 10 20:40:49.602 INFO kablam!    |
Sep 10 20:40:49.602 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 10 20:40:49.602 INFO kablam!    |   ^^^^^
Sep 10 20:40:49.602 INFO kablam!    |
Sep 10 20:40:49.602 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 20:40:49.602 INFO kablam! 
Sep 10 20:40:49.602 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 10 20:40:49.603 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 10 20:40:49.603 INFO kablam!    |
Sep 10 20:40:49.603 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 10 20:40:49.603 INFO kablam!    |   ^^^^^
Sep 10 20:40:49.603 INFO kablam!    |
Sep 10 20:40:49.603 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 20:40:49.603 INFO kablam! 
Sep 10 20:40:49.603 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 10 20:40:49.603 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/mod.rs:24:3
Sep 10 20:40:49.603 INFO kablam!    |
Sep 10 20:40:49.603 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 10 20:40:49.603 INFO kablam!    |   ^^^^^
Sep 10 20:40:49.603 INFO kablam!    |
Sep 10 20:40:49.603 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 20:40:49.603 INFO kablam! 
Sep 10 20:40:49.642 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 10 20:40:49.642 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/mod.rs:46:3
Sep 10 20:40:49.642 INFO kablam!    |
Sep 10 20:40:49.642 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 10 20:40:49.642 INFO kablam!    |   ^^^^^
Sep 10 20:40:49.642 INFO kablam!    |
Sep 10 20:40:49.642 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 20:40:49.642 INFO kablam! 
Sep 10 20:40:50.068 INFO kablam! error: aborting due to 7 previous errors
Sep 10 20:40:50.090 INFO kablam! 
Sep 10 20:40:50.090 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 10 20:40:50.126 INFO kablam! error: Could not compile `log4rs`.
Sep 10 20:40:50.127 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 10 20:40:59.470 INFO kablam! error: build failed
Sep 10 20:40:59.470 INFO kablam! su: No module specific data is present
Sep 10 20:41:00.298 INFO running `"docker" "rm" "-f" "c4520710df708756169ed9b362899b19182c315aa8d3bda033bd585e8f33ccd5"`
Sep 10 20:41:00.424 INFO blam! c4520710df708756169ed9b362899b19182c315aa8d3bda033bd585e8f33ccd5