Sep 02 17:11:32.238 INFO checking crust-0.31.0 against try#952c7dbfa2628309f557b367929ffc17af20b332 for pr-53851
Sep 02 17:11:32.238 INFO running: cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets
Sep 02 17:11:32.238 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53851/try#952c7dbfa2628309f557b367929ffc17af20b332:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-2/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 02 17:11:32.492 INFO blam! dcc99e56c2c92cf40ff371268de9787b2fc7aa97d20838957f2a646dbd1ba654
Sep 02 17:11:32.494 INFO running `"docker" "start" "-a" "dcc99e56c2c92cf40ff371268de9787b2fc7aa97d20838957f2a646dbd1ba654"`
Sep 02 17:11:34.098 INFO kablam!    Compiling encoding_rs v0.8.6
Sep 02 17:11:34.100 INFO kablam!    Compiling base64 v0.9.2
Sep 02 17:11:34.104 INFO kablam!    Compiling crossbeam-epoch v0.5.2
Sep 02 17:11:34.105 INFO kablam!    Compiling bytes v0.4.9
Sep 02 17:11:34.106 INFO kablam!    Compiling uuid v0.6.5
Sep 02 17:11:34.115 INFO kablam!    Compiling url v1.5.1
Sep 02 17:11:34.127 INFO kablam!    Compiling openssl v0.9.24
Sep 02 17:11:34.128 INFO kablam!    Compiling libflate v0.1.16
Sep 02 17:11:39.982 INFO kablam!     Checking config_file_handler v0.11.0
Sep 02 17:11:40.010 INFO kablam!    Compiling phf v0.7.23
Sep 02 17:11:40.098 INFO kablam!    Compiling flate2 v1.0.2
Sep 02 17:11:44.149 INFO kablam!     Checking igd v0.6.0
Sep 02 17:11:44.751 INFO kablam!    Compiling crossbeam-deque v0.6.1
Sep 02 17:11:44.837 INFO kablam!    Compiling tokio-io v0.1.8
Sep 02 17:11:50.477 INFO kablam!     Checking log4rs v0.7.0
Sep 02 17:11:50.481 INFO kablam!    Compiling tokio-threadpool v0.1.6
Sep 02 17:11:50.487 INFO kablam!    Compiling zip v0.3.3
Sep 02 17:11:50.519 INFO kablam!    Compiling mime_guess v2.0.0-alpha.6
Sep 02 17:11:50.556 INFO kablam!    Compiling serde_urlencoded v0.5.3
Sep 02 17:11:51.268 INFO kablam!    Compiling tokio-reactor v0.1.5
Sep 02 17:11:54.980 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 02 17:11:54.980 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/file.rs:25:3
Sep 02 17:11:54.980 INFO kablam!    |
Sep 02 17:11:54.980 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 02 17:11:54.980 INFO kablam!    |   ^^^^^
Sep 02 17:11:54.980 INFO kablam!    |
Sep 02 17:11:54.980 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 17:11:54.980 INFO kablam! 
Sep 02 17:11:54.981 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 02 17:11:54.981 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/console.rs:24:3
Sep 02 17:11:54.981 INFO kablam!    |
Sep 02 17:11:54.981 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 02 17:11:54.981 INFO kablam!    |   ^^^^^
Sep 02 17:11:54.982 INFO kablam!    |
Sep 02 17:11:54.982 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 17:11:54.983 INFO kablam! 
Sep 02 17:11:54.983 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 02 17:11:54.984 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 02 17:11:54.984 INFO kablam!    |
Sep 02 17:11:54.984 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 02 17:11:54.984 INFO kablam!    |   ^^^^^
Sep 02 17:11:54.984 INFO kablam!    |
Sep 02 17:11:54.985 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 17:11:54.985 INFO kablam! 
Sep 02 17:11:54.986 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 02 17:11:54.986 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 02 17:11:54.986 INFO kablam!    |
Sep 02 17:11:54.986 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 02 17:11:54.986 INFO kablam!    |   ^^^^^
Sep 02 17:11:54.986 INFO kablam!    |
Sep 02 17:11:54.987 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 17:11:54.987 INFO kablam! 
Sep 02 17:11:54.988 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 02 17:11:54.988 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 02 17:11:54.988 INFO kablam!    |
Sep 02 17:11:54.988 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 02 17:11:54.988 INFO kablam!    |   ^^^^^
Sep 02 17:11:54.988 INFO kablam!    |
Sep 02 17:11:54.989 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 17:11:54.989 INFO kablam! 
Sep 02 17:11:54.990 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 02 17:11:54.990 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/policy/compound/mod.rs:24:3
Sep 02 17:11:54.990 INFO kablam!    |
Sep 02 17:11:54.990 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 02 17:11:54.990 INFO kablam!    |   ^^^^^
Sep 02 17:11:54.991 INFO kablam!    |
Sep 02 17:11:54.991 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 17:11:54.991 INFO kablam! 
Sep 02 17:11:54.992 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 02 17:11:54.992 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.7.0/src/append/rolling_file/mod.rs:46:3
Sep 02 17:11:54.992 INFO kablam!    |
Sep 02 17:11:54.992 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 02 17:11:54.992 INFO kablam!    |   ^^^^^
Sep 02 17:11:54.993 INFO kablam!    |
Sep 02 17:11:54.993 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 02 17:11:54.994 INFO kablam! 
Sep 02 17:11:55.274 INFO kablam! error: aborting due to 7 previous errors
Sep 02 17:11:55.290 INFO kablam! 
Sep 02 17:11:55.291 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 02 17:11:55.301 INFO kablam! error: Could not compile `log4rs`.
Sep 02 17:11:55.302 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 02 17:12:00.305 INFO kablam! error: build failed
Sep 02 17:12:00.306 INFO kablam! su: No module specific data is present
Sep 02 17:12:00.807 INFO running `"docker" "rm" "-f" "dcc99e56c2c92cf40ff371268de9787b2fc7aa97d20838957f2a646dbd1ba654"`
Sep 02 17:12:00.905 INFO blam! dcc99e56c2c92cf40ff371268de9787b2fc7aa97d20838957f2a646dbd1ba654