Sep 06 00:26:45.272 INFO checking scavenger-1.0.0 against master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6 for pr-53854
Sep 06 00:26:45.272 INFO running: cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets
Sep 06 00:26:45.272 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53854/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-1/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/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 +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 00:26:45.415 INFO blam! 159004ca969e509406eb079b021f7d8c71e55a9caa3f3b7d9478ff6c03b9344f
Sep 06 00:26:45.417 INFO running `"docker" "start" "-a" "159004ca969e509406eb079b021f7d8c71e55a9caa3f3b7d9478ff6c03b9344f"`
Sep 06 00:26:46.590 INFO kablam! usermod: no changes
Sep 06 00:26:46.966 INFO kablam!    Compiling scavenger v1.0.0 (file:///source)
Sep 06 00:26:46.977 INFO kablam!     Checking core_affinity v0.5.9
Sep 06 00:26:46.977 INFO kablam!     Checking clap v2.30.0
Sep 06 00:26:46.977 INFO kablam!     Checking log v0.4.5
Sep 06 00:26:46.977 INFO kablam!     Checking chrono v0.4.6
Sep 06 00:26:46.978 INFO kablam!     Checking ct-logs v0.4.0
Sep 06 00:26:46.978 INFO kablam!     Checking stopwatch v0.0.7
Sep 06 00:26:48.099 INFO kablam!     Checking tokio-io v0.1.8
Sep 06 00:26:48.099 INFO kablam!     Checking mio v0.6.15
Sep 06 00:26:48.123 INFO kablam!     Checking tokio-threadpool v0.1.6
Sep 06 00:26:48.123 INFO kablam!     Checking want v0.0.6
Sep 06 00:26:49.104 INFO kablam!     Checking rustls v0.13.1
Sep 06 00:26:52.814 INFO kablam!     Checking tokio-codec v0.1.0
Sep 06 00:26:52.814 INFO kablam!     Checking h2 v0.1.12
Sep 06 00:26:53.170 INFO kablam!     Checking tokio-fs v0.1.3
Sep 06 00:26:54.890 INFO kablam!     Checking mio-uds v0.6.7
Sep 06 00:26:54.890 INFO kablam!     Checking tokio-reactor v0.1.5
Sep 06 00:26:55.702 INFO kablam!     Checking log4rs v0.8.0
Sep 06 00:26:58.870 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 00:26:58.870 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/file.rs:25:3
Sep 06 00:26:58.870 INFO kablam!    |
Sep 06 00:26:58.870 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 06 00:26:58.870 INFO kablam!    |   ^^^^^
Sep 06 00:26:58.870 INFO kablam!    |
Sep 06 00:26:58.870 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 00:26:58.870 INFO kablam! 
Sep 06 00:26:58.870 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 00:26:58.870 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/console.rs:24:3
Sep 06 00:26:58.870 INFO kablam!    |
Sep 06 00:26:58.870 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 06 00:26:58.870 INFO kablam!    |   ^^^^^
Sep 06 00:26:58.870 INFO kablam!    |
Sep 06 00:26:58.870 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 00:26:58.870 INFO kablam! 
Sep 06 00:26:58.870 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 00:26:58.870 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/policy/compound/roll/delete.rs:16:3
Sep 06 00:26:58.870 INFO kablam!    |
Sep 06 00:26:58.870 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 06 00:26:58.870 INFO kablam!    |   ^^^^^
Sep 06 00:26:58.870 INFO kablam!    |
Sep 06 00:26:58.870 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 00:26:58.871 INFO kablam! 
Sep 06 00:26:58.871 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 00:26:58.871 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/policy/compound/roll/fixed_window.rs:17:3
Sep 06 00:26:58.871 INFO kablam!    |
Sep 06 00:26:58.871 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 06 00:26:58.871 INFO kablam!    |   ^^^^^
Sep 06 00:26:58.871 INFO kablam!    |
Sep 06 00:26:58.871 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 00:26:58.871 INFO kablam! 
Sep 06 00:26:58.871 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 00:26:58.871 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/policy/compound/trigger/size.rs:21:3
Sep 06 00:26:58.871 INFO kablam!    |
Sep 06 00:26:58.871 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 06 00:26:58.871 INFO kablam!    |   ^^^^^
Sep 06 00:26:58.871 INFO kablam!    |
Sep 06 00:26:58.871 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 00:26:58.871 INFO kablam! 
Sep 06 00:26:58.871 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 00:26:58.871 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/policy/compound/mod.rs:24:3
Sep 06 00:26:58.871 INFO kablam!    |
Sep 06 00:26:58.871 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 06 00:26:58.871 INFO kablam!    |   ^^^^^
Sep 06 00:26:58.871 INFO kablam!    |
Sep 06 00:26:58.871 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 00:26:58.871 INFO kablam! 
Sep 06 00:26:58.871 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 00:26:58.871 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/mod.rs:46:3
Sep 06 00:26:58.871 INFO kablam!    |
Sep 06 00:26:58.871 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 06 00:26:58.871 INFO kablam!    |   ^^^^^
Sep 06 00:26:58.871 INFO kablam!    |
Sep 06 00:26:58.871 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 06 00:26:58.871 INFO kablam! 
Sep 06 00:26:59.082 INFO kablam! error: aborting due to 7 previous errors
Sep 06 00:26:59.082 INFO kablam! 
Sep 06 00:26:59.082 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 06 00:26:59.102 INFO kablam! error: Could not compile `log4rs`.
Sep 06 00:26:59.102 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 06 00:27:04.262 INFO kablam! error: build failed
Sep 06 00:27:04.274 INFO kablam! su: No module specific data is present
Sep 06 00:27:05.291 INFO running `"docker" "rm" "-f" "159004ca969e509406eb079b021f7d8c71e55a9caa3f3b7d9478ff6c03b9344f"`
Sep 06 00:27:05.424 INFO blam! 159004ca969e509406eb079b021f7d8c71e55a9caa3f3b7d9478ff6c03b9344f