Sep 10 10:23:08.594 INFO checking safe_crypto-0.3.0 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 10:23:08.594 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 10:23:08.594 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-3/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/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 +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 10:23:08.822 INFO blam! 2188af4469fc0f9bbb6336678ffb0fce0810d667a892ff2f49d847b8c8b12b42
Sep 10 10:23:08.822 INFO running `"docker" "start" "-a" "2188af4469fc0f9bbb6336678ffb0fce0810d667a892ff2f49d847b8c8b12b42"`
Sep 10 10:23:09.687 INFO kablam! usermod: no changes
Sep 10 10:23:10.082 INFO kablam!    Compiling crunchy v0.1.6
Sep 10 10:23:10.106 INFO kablam!    Compiling encoding_rs v0.8.6
Sep 10 10:23:10.106 INFO kablam!    Compiling relay v0.1.1
Sep 10 10:23:10.106 INFO kablam!    Compiling tokio-service v0.1.0
Sep 10 10:23:10.106 INFO kablam!     Checking thread_local v0.3.6
Sep 10 10:23:10.112 INFO kablam!    Compiling crossbeam-epoch v0.5.2
Sep 10 10:23:10.112 INFO kablam!    Compiling futures-cpupool v0.1.8
Sep 10 10:23:10.118 INFO kablam!    Compiling uuid v0.6.5
Sep 10 10:23:11.348 INFO kablam!    Compiling want v0.0.4
Sep 10 10:23:13.498 INFO kablam!    Compiling mio v0.6.16
Sep 10 10:23:13.675 INFO kablam!    Compiling unicase v2.1.0
Sep 10 10:23:13.677 INFO kablam!    Compiling tokio-io v0.1.8
Sep 10 10:23:13.682 INFO kablam!    Compiling crossbeam-deque v0.6.1
Sep 10 10:23:13.711 INFO kablam!    Compiling url v1.5.1
Sep 10 10:23:13.747 INFO kablam!    Compiling serde_json v1.0.27
Sep 10 10:23:14.692 INFO kablam!     Checking serde_yaml v0.7.5
Sep 10 10:23:16.558 INFO kablam!     Checking toml v0.4.6
Sep 10 10:23:19.981 INFO kablam!     Checking regex v0.2.11
Sep 10 10:23:23.770 INFO kablam!    Compiling openssl v0.9.24
Sep 10 10:23:23.955 INFO kablam!    Compiling miniz_oxide_c_api v0.1.3
Sep 10 10:23:33.332 INFO kablam!    Compiling libflate v0.1.16
Sep 10 10:23:33.350 INFO kablam!     Checking config_file_handler v0.9.0
Sep 10 10:23:33.370 INFO kablam!    Compiling tokio-threadpool v0.1.6
Sep 10 10:23:33.845 INFO kablam!     Checking bincode v0.8.0
Sep 10 10:23:36.514 INFO kablam!     Checking ws v0.7.3
Sep 10 10:23:37.716 INFO kablam!    Compiling mime v0.3.9
Sep 10 10:23:44.303 INFO kablam!    Compiling phf v0.7.23
Sep 10 10:23:44.323 INFO kablam!     Checking tiny-keccak v1.4.2
Sep 10 10:23:44.418 INFO kablam!    Compiling tokio-codec v0.1.0
Sep 10 10:23:46.863 INFO kablam!    Compiling flate2 v1.0.2
Sep 10 10:23:47.419 INFO kablam!    Compiling mio-uds v0.6.7
Sep 10 10:23:52.854 INFO kablam!    Compiling serde_urlencoded v0.5.3
Sep 10 10:23:58.122 INFO kablam!     Checking serde-value v0.5.2
Sep 10 10:23:58.138 INFO kablam!    Compiling zip v0.3.3
Sep 10 10:23:58.138 INFO kablam!    Compiling tokio-reactor v0.1.5
Sep 10 10:23:58.566 INFO kablam!    Compiling mime_guess v2.0.0-alpha.6
Sep 10 10:23:58.642 INFO kablam!    Compiling tokio-fs v0.1.3
Sep 10 10:23:59.242 INFO kablam!    Compiling native-tls v0.1.5
Sep 10 10:24:03.277 INFO kablam!     Checking log4rs v0.7.0
Sep 10 10:24:07.091 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 10:24:07.091 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/file.rs:25:3
Sep 10 10:24:07.091 INFO kablam!    |
Sep 10 10:24:07.091 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 10 10:24:07.091 INFO kablam!    |   ^^^^^
Sep 10 10:24:07.091 INFO kablam!    |
Sep 10 10:24:07.091 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 10:24:07.092 INFO kablam! 
Sep 10 10:24:07.092 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 10:24:07.092 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/console.rs:24:3
Sep 10 10:24:07.092 INFO kablam!    |
Sep 10 10:24:07.092 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 10 10:24:07.092 INFO kablam!    |   ^^^^^
Sep 10 10:24:07.093 INFO kablam!    |
Sep 10 10:24:07.093 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 10:24:07.093 INFO kablam! 
Sep 10 10:24:07.094 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 10:24:07.094 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 10:24:07.094 INFO kablam!    |
Sep 10 10:24:07.094 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 10 10:24:07.094 INFO kablam!    |   ^^^^^
Sep 10 10:24:07.094 INFO kablam!    |
Sep 10 10:24:07.094 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 10:24:07.094 INFO kablam! 
Sep 10 10:24:07.095 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 10:24:07.095 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 10:24:07.095 INFO kablam!    |
Sep 10 10:24:07.095 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 10 10:24:07.095 INFO kablam!    |   ^^^^^
Sep 10 10:24:07.095 INFO kablam!    |
Sep 10 10:24:07.095 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 10:24:07.096 INFO kablam! 
Sep 10 10:24:07.096 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 10:24:07.096 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 10:24:07.096 INFO kablam!    |
Sep 10 10:24:07.096 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 10 10:24:07.096 INFO kablam!    |   ^^^^^
Sep 10 10:24:07.097 INFO kablam!    |
Sep 10 10:24:07.097 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 10:24:07.097 INFO kablam! 
Sep 10 10:24:07.097 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 10:24:07.097 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 10:24:07.097 INFO kablam!    |
Sep 10 10:24:07.097 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 10 10:24:07.097 INFO kablam!    |   ^^^^^
Sep 10 10:24:07.098 INFO kablam!    |
Sep 10 10:24:07.098 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 10:24:07.098 INFO kablam! 
Sep 10 10:24:07.099 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 10:24:07.099 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/mod.rs:46:3
Sep 10 10:24:07.099 INFO kablam!    |
Sep 10 10:24:07.099 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 10 10:24:07.099 INFO kablam!    |   ^^^^^
Sep 10 10:24:07.099 INFO kablam!    |
Sep 10 10:24:07.099 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 10 10:24:07.100 INFO kablam! 
Sep 10 10:24:07.370 INFO kablam! error: aborting due to 7 previous errors
Sep 10 10:24:07.386 INFO kablam! 
Sep 10 10:24:07.386 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 10 10:24:07.414 INFO kablam! error: Could not compile `log4rs`.
Sep 10 10:24:07.414 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 10 10:24:17.326 INFO kablam! error: build failed
Sep 10 10:24:17.338 INFO kablam! su: No module specific data is present
Sep 10 10:24:18.769 INFO running `"docker" "rm" "-f" "2188af4469fc0f9bbb6336678ffb0fce0810d667a892ff2f49d847b8c8b12b42"`
Sep 10 10:24:18.891 INFO blam! 2188af4469fc0f9bbb6336678ffb0fce0810d667a892ff2f49d847b8c8b12b42