Dec 04 19:04:30.900 INFO checking ernestrc/rux against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 19:04:30.900 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 19:04:31.456 INFO [stdout] 0455689a38afdfb7ad08c8e14dfc17aff02096c0277ee7281cf8024c5c5cae0d
Dec 04 19:04:31.458 INFO running `"docker" "start" "-a" "0455689a38afdfb7ad08c8e14dfc17aff02096c0277ee7281cf8024c5c5cae0d"`
Dec 04 19:04:33.038 INFO [stderr] usermod: no changes
Dec 04 19:04:33.235 INFO [stderr]    Compiling gcc v0.3.40
Dec 04 19:04:33.243 INFO [stderr]     Checking pad v0.1.4
Dec 04 19:04:33.243 INFO [stderr]    Compiling nix v0.7.0
Dec 04 19:04:33.243 INFO [stderr]     Checking env_logger v0.3.5
Dec 04 19:04:37.591 INFO [stderr]    Compiling backtrace-sys v0.1.5
Dec 04 19:04:39.881 INFO [stderr]     Checking backtrace v0.3.0
Dec 04 19:04:40.721 INFO [stderr]     Checking error-chain v0.7.1
Dec 04 19:04:42.514 INFO [stderr]     Checking rux v0.1.0 (/source)
Dec 04 19:04:44.238 INFO [stderr] warning: unused import: `super::*`
Dec 04 19:04:44.239 INFO [stderr]    --> src/mux/handler.rs:150:7
Dec 04 19:04:44.239 INFO [stderr]     |
Dec 04 19:04:44.239 INFO [stderr] 150 |   use super::*;
Dec 04 19:04:44.239 INFO [stderr]     |       ^^^^^^^^
Dec 04 19:04:44.240 INFO [stderr]     |
Dec 04 19:04:44.240 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 04 19:04:44.240 INFO [stderr] 
Dec 04 19:04:45.759 INFO [stderr] warning: unused variable: `buffer`
Dec 04 19:04:45.759 INFO [stderr]    --> src/buf/tests.rs:268:18
Dec 04 19:04:45.759 INFO [stderr]     |
Dec 04 19:04:45.760 INFO [stderr] 268 |   fn from_buffer(buffer: &mut ByteBuffer) -> Result<Option<MyType>> {
Dec 04 19:04:45.760 INFO [stderr]     |                  ^^^^^^ help: consider using `_buffer` instead
Dec 04 19:04:45.760 INFO [stderr]     |
Dec 04 19:04:45.760 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 04 19:04:45.760 INFO [stderr] 
Dec 04 19:04:46.568 INFO [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
Dec 04 19:04:46.569 INFO [stderr]    --> src/epoll/mod.rs:215:13
Dec 04 19:04:46.569 INFO [stderr]     |
Dec 04 19:04:46.569 INFO [stderr] 215 |     assert!(ev.events.contains(EPOLLIN));
Dec 04 19:04:46.570 INFO [stderr]     |             ^^^^^^^^^
Dec 04 19:04:46.575 INFO [stderr]     |
Dec 04 19:04:46.575 INFO [stderr]     = note: #[warn(safe_packed_borrows)] on by default
Dec 04 19:04:46.575 INFO [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Dec 04 19:04:46.576 INFO [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
Dec 04 19:04:46.576 INFO [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
Dec 04 19:04:46.576 INFO [stderr] 
Dec 04 19:04:48.271 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.21s
Dec 04 19:04:48.283 INFO [stderr] su: No module specific data is present
Dec 04 19:04:50.035 INFO running `"docker" "inspect" "0455689a38afdfb7ad08c8e14dfc17aff02096c0277ee7281cf8024c5c5cae0d"`
Dec 04 19:04:50.412 INFO running `"docker" "rm" "-f" "0455689a38afdfb7ad08c8e14dfc17aff02096c0277ee7281cf8024c5c5cae0d"`
Dec 04 19:04:50.755 INFO [stdout] 0455689a38afdfb7ad08c8e14dfc17aff02096c0277ee7281cf8024c5c5cae0d