Dec 18 05:18:06.020 INFO checking Tahler/assembler against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 05:18:06.020 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/Tahler/assembler:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 05:18:06.260 INFO [stdout] 3ccd44134625aa4bfc3ad6e3599cb631acd36940f9f4aa624208f1eeb89f7d4d
Dec 18 05:18:06.262 INFO running `"docker" "start" "-a" "3ccd44134625aa4bfc3ad6e3599cb631acd36940f9f4aa624208f1eeb89f7d4d"`
Dec 18 05:18:06.881 INFO [stderr]     Checking assembler v0.1.0 (/opt/crater/workdir)
Dec 18 05:18:07.180 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 05:18:07.180 INFO [stderr]    --> src/main.rs:133:9
Dec 18 05:18:07.180 INFO [stderr]     |
Dec 18 05:18:07.181 INFO [stderr] 133 |         fs::remove_file(out_path);
Dec 18 05:18:07.181 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:18:07.181 INFO [stderr]     |
Dec 18 05:18:07.181 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 05:18:07.181 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 05:18:07.181 INFO [stderr] 
Dec 18 05:18:07.182 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 05:18:07.182 INFO [stderr]    --> src/main.rs:143:21
Dec 18 05:18:07.182 INFO [stderr]     |
Dec 18 05:18:07.182 INFO [stderr] 143 |                     out_file.write_all(&instruction_bytes);
Dec 18 05:18:07.182 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:18:07.182 INFO [stderr]     |
Dec 18 05:18:07.183 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 05:18:07.183 INFO [stderr] 
Dec 18 05:18:07.273 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 05:18:07.273 INFO [stderr]    --> src/main.rs:133:9
Dec 18 05:18:07.273 INFO [stderr]     |
Dec 18 05:18:07.274 INFO [stderr] 133 |         fs::remove_file(out_path);
Dec 18 05:18:07.274 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:18:07.274 INFO [stderr]     |
Dec 18 05:18:07.274 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 05:18:07.274 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 05:18:07.274 INFO [stderr] 
Dec 18 05:18:07.274 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 05:18:07.274 INFO [stderr]    --> src/main.rs:143:21
Dec 18 05:18:07.274 INFO [stderr]     |
Dec 18 05:18:07.274 INFO [stderr] 143 |                     out_file.write_all(&instruction_bytes);
Dec 18 05:18:07.274 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:18:07.274 INFO [stderr]     |
Dec 18 05:18:07.274 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 05:18:07.274 INFO [stderr] 
Dec 18 05:18:07.308 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
Dec 18 05:18:09.516 INFO running `"docker" "inspect" "3ccd44134625aa4bfc3ad6e3599cb631acd36940f9f4aa624208f1eeb89f7d4d"`
Dec 18 05:18:09.638 INFO running `"docker" "rm" "-f" "3ccd44134625aa4bfc3ad6e3599cb631acd36940f9f4aa624208f1eeb89f7d4d"`
Dec 18 05:18:09.751 INFO [stdout] 3ccd44134625aa4bfc3ad6e3599cb631acd36940f9f4aa624208f1eeb89f7d4d