Sep 01 15:32:45.969 INFO checking futurice/rusty-build-light against try#952c7dbfa2628309f557b367929ffc17af20b332 for pr-53851
Sep 01 15:32:45.969 INFO running: cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets
Sep 01 15:32:45.969 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 01 15:32:46.174 INFO blam! fe4869f2dc71ec14e9b11ec041855e2ccf3d10619f62fc1a2f3faa714d51f13a
Sep 01 15:32:46.176 INFO running `"docker" "start" "-a" "fe4869f2dc71ec14e9b11ec041855e2ccf3d10619f62fc1a2f3faa714d51f13a"`
Sep 01 15:32:47.238 INFO kablam!     Checking libc v0.2.35
Sep 01 15:32:47.243 INFO kablam!     Checking linked-hash-map v0.5.0
Sep 01 15:32:47.246 INFO kablam!    Compiling rusty_build_light v0.1.0 (file:///source)
Sep 01 15:32:47.248 INFO kablam!    Compiling miniz-sys v0.1.10
Sep 01 15:32:47.248 INFO kablam!     Checking log v0.4.1
Sep 01 15:32:47.249 INFO kablam!    Compiling openssl-sys v0.9.23
Sep 01 15:32:47.252 INFO kablam!    Compiling wiringpi v0.2.4
Sep 01 15:32:47.738 INFO kablam! warning: unused import: `std::ffi::OsString`
Sep 01 15:32:47.738 INFO kablam!  --> build.rs:2:5
Sep 01 15:32:47.738 INFO kablam!   |
Sep 01 15:32:47.738 INFO kablam! 2 | use std::ffi::OsString;
Sep 01 15:32:47.738 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^
Sep 01 15:32:47.738 INFO kablam!   |
Sep 01 15:32:47.738 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 01 15:32:47.738 INFO kablam! 
Sep 01 15:32:48.371 INFO kablam!     Checking humantime v1.0.0
Sep 01 15:32:49.394 INFO kablam!     Checking ordered-float v0.5.0
Sep 01 15:32:49.987 INFO kablam!     Checking yaml-rust v0.4.0
Sep 01 15:32:51.006 INFO kablam!     Checking log v0.3.9
Sep 01 15:32:51.074 INFO kablam!     Checking serde-value v0.5.1
Sep 01 15:32:52.428 INFO kablam!    Compiling openssl v0.9.23
Sep 01 15:32:53.455 INFO kablam!     Checking iovec v0.1.1
Sep 01 15:32:53.455 INFO kablam!     Checking net2 v0.2.31
Sep 01 15:32:53.455 INFO kablam!     Checking num_cpus v1.8.0
Sep 01 15:32:53.455 INFO kablam!     Checking rand v0.3.20
Sep 01 15:32:53.591 INFO kablam!     Checking time v0.1.39
Sep 01 15:32:54.696 INFO kablam!     Checking backtrace-sys v0.1.16
Sep 01 15:32:55.136 INFO kablam!     Checking nix v0.9.0
Sep 01 15:32:55.775 INFO kablam!     Checking futures-cpupool v0.1.8
Sep 01 15:32:56.205 INFO kablam!     Checking bytes v0.4.6
Sep 01 15:32:56.665 INFO kablam!     Checking flate2 v1.0.1
Sep 01 15:32:56.964 INFO kablam!     Checking backtrace v0.3.5
Sep 01 15:32:57.144 INFO kablam!     Checking serde_yaml v0.7.3
Sep 01 15:32:57.689 INFO kablam!     Checking mio v0.6.12
Sep 01 15:33:01.935 INFO kablam!     Checking chrono v0.4.0
Sep 01 15:33:02.535 INFO kablam!     Checking failure v0.1.1
Sep 01 15:33:04.011 INFO kablam!     Checking tokio-io v0.1.4
Sep 01 15:33:04.198 INFO kablam!     Checking uuid v0.5.1
Sep 01 15:33:08.685 INFO kablam!    Compiling phf_generator v0.7.21
Sep 01 15:33:10.161 INFO kablam!    Compiling phf_codegen v0.7.21
Sep 01 15:33:10.323 INFO kablam!     Checking tokio-core v0.1.12
Sep 01 15:33:11.819 INFO kablam!    Compiling mime_guess v2.0.0-alpha.3
Sep 01 15:33:14.387 INFO kablam!     Checking log4rs v0.8.0
Sep 01 15:33:15.412 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 01 15:33:15.412 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/file.rs:25:3
Sep 01 15:33:15.412 INFO kablam!    |
Sep 01 15:33:15.412 INFO kablam! 25 | #[serde(deny_unknown_fields)]
Sep 01 15:33:15.412 INFO kablam!    |   ^^^^^
Sep 01 15:33:15.413 INFO kablam!    |
Sep 01 15:33:15.413 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 15:33:15.414 INFO kablam! 
Sep 01 15:33:15.414 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 01 15:33:15.414 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/console.rs:24:3
Sep 01 15:33:15.414 INFO kablam!    |
Sep 01 15:33:15.414 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 01 15:33:15.414 INFO kablam!    |   ^^^^^
Sep 01 15:33:15.415 INFO kablam!    |
Sep 01 15:33:15.415 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 15:33:15.415 INFO kablam! 
Sep 01 15:33:15.416 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 01 15:33:15.416 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 01 15:33:15.416 INFO kablam!    |
Sep 01 15:33:15.416 INFO kablam! 16 | #[serde(deny_unknown_fields)]
Sep 01 15:33:15.416 INFO kablam!    |   ^^^^^
Sep 01 15:33:15.417 INFO kablam!    |
Sep 01 15:33:15.417 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 15:33:15.417 INFO kablam! 
Sep 01 15:33:15.418 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 01 15:33:15.418 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 01 15:33:15.418 INFO kablam!    |
Sep 01 15:33:15.418 INFO kablam! 17 | #[serde(deny_unknown_fields)]
Sep 01 15:33:15.418 INFO kablam!    |   ^^^^^
Sep 01 15:33:15.419 INFO kablam!    |
Sep 01 15:33:15.419 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 15:33:15.420 INFO kablam! 
Sep 01 15:33:15.420 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 01 15:33:15.420 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 01 15:33:15.421 INFO kablam!    |
Sep 01 15:33:15.421 INFO kablam! 21 | #[serde(deny_unknown_fields)]
Sep 01 15:33:15.421 INFO kablam!    |   ^^^^^
Sep 01 15:33:15.421 INFO kablam!    |
Sep 01 15:33:15.421 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 15:33:15.422 INFO kablam! 
Sep 01 15:33:15.422 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 01 15:33:15.423 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/policy/compound/mod.rs:24:3
Sep 01 15:33:15.423 INFO kablam!    |
Sep 01 15:33:15.423 INFO kablam! 24 | #[serde(deny_unknown_fields)]
Sep 01 15:33:15.423 INFO kablam!    |   ^^^^^
Sep 01 15:33:15.423 INFO kablam!    |
Sep 01 15:33:15.423 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 15:33:15.424 INFO kablam! 
Sep 01 15:33:15.424 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 01 15:33:15.424 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/log4rs-0.8.0/src/append/rolling_file/mod.rs:46:3
Sep 01 15:33:15.425 INFO kablam!    |
Sep 01 15:33:15.425 INFO kablam! 46 | #[serde(deny_unknown_fields)]
Sep 01 15:33:15.425 INFO kablam!    |   ^^^^^
Sep 01 15:33:15.425 INFO kablam!    |
Sep 01 15:33:15.425 INFO kablam!    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Sep 01 15:33:15.426 INFO kablam! 
Sep 01 15:33:15.512 INFO kablam! error: aborting due to 7 previous errors
Sep 01 15:33:15.512 INFO kablam! 
Sep 01 15:33:15.513 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 01 15:33:15.524 INFO kablam! error: Could not compile `log4rs`.
Sep 01 15:33:15.525 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 01 15:33:19.084 INFO kablam! error: build failed
Sep 01 15:33:19.087 INFO kablam! su: No module specific data is present
Sep 01 15:33:19.529 INFO running `"docker" "rm" "-f" "fe4869f2dc71ec14e9b11ec041855e2ccf3d10619f62fc1a2f3faa714d51f13a"`
Sep 01 15:33:19.706 INFO blam! fe4869f2dc71ec14e9b11ec041855e2ccf3d10619f62fc1a2f3faa714d51f13a