Dec 04 06:48:07.051 INFO checking xrisjc/rack against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 06:48:07.052 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 06:48:07.628 INFO [stdout] f39cf2f92d69061518989d325b472404d9ca006ade4cf03b3790528719be56fc
Dec 04 06:48:07.630 INFO running `"docker" "start" "-a" "f39cf2f92d69061518989d325b472404d9ca006ade4cf03b3790528719be56fc"`
Dec 04 06:48:09.794 INFO [stderr] usermod: no changes
Dec 04 06:48:09.887 INFO [stderr]     Checking rack v0.1.0 (/source)
Dec 04 06:48:10.847 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 06:48:10.847 INFO [stderr]   --> src/asm/mod.rs:23:9
Dec 04 06:48:10.847 INFO [stderr]    |
Dec 04 06:48:10.847 INFO [stderr] 23 |         writeln!(out, "{:016b}", encode(*command));
Dec 04 06:48:10.847 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 06:48:10.847 INFO [stderr]    |
Dec 04 06:48:10.847 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 06:48:10.847 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 06:48:10.847 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 06:48:10.847 INFO [stderr] 
Dec 04 06:48:10.847 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 06:48:10.847 INFO [stderr]   --> src/asm/mod.rs:23:9
Dec 04 06:48:10.847 INFO [stderr]    |
Dec 04 06:48:10.847 INFO [stderr] 23 |         writeln!(out, "{:016b}", encode(*command));
Dec 04 06:48:10.847 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 06:48:10.847 INFO [stderr]    |
Dec 04 06:48:10.847 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 06:48:10.847 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 06:48:10.847 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 06:48:10.847 INFO [stderr] 
Dec 04 06:48:11.307 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.47s
Dec 04 06:48:11.319 INFO [stderr] su: No module specific data is present
Dec 04 06:48:12.680 INFO running `"docker" "inspect" "f39cf2f92d69061518989d325b472404d9ca006ade4cf03b3790528719be56fc"`
Dec 04 06:48:13.075 INFO running `"docker" "rm" "-f" "f39cf2f92d69061518989d325b472404d9ca006ade4cf03b3790528719be56fc"`
Dec 04 06:48:13.359 INFO [stdout] f39cf2f92d69061518989d325b472404d9ca006ade4cf03b3790528719be56fc