Dec 18 05:18:06.157 INFO checking Tahler/assembler against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 05:18:06.157 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 05:18:06.381 INFO [stdout] cc48eb43fa4f49f4d0e72ab613a5fcffecdd5e7a328cd731853eb960b4c8c2e2
Dec 18 05:18:06.386 INFO running `"docker" "start" "-a" "cc48eb43fa4f49f4d0e72ab613a5fcffecdd5e7a328cd731853eb960b4c8c2e2"`
Dec 18 05:18:06.976 INFO [stderr]     Checking assembler v0.1.0 (/opt/crater/workdir)
Dec 18 05:18:07.327 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 05:18:07.327 INFO [stderr]    --> src/main.rs:133:9
Dec 18 05:18:07.327 INFO [stderr]     |
Dec 18 05:18:07.327 INFO [stderr] 133 |         fs::remove_file(out_path);
Dec 18 05:18:07.327 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:18:07.327 INFO [stderr]     |
Dec 18 05:18:07.327 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 05:18:07.327 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 05:18:07.327 INFO [stderr] 
Dec 18 05:18:07.327 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 05:18:07.327 INFO [stderr]    --> src/main.rs:143:21
Dec 18 05:18:07.327 INFO [stderr]     |
Dec 18 05:18:07.328 INFO [stderr] 143 |                     out_file.write_all(&instruction_bytes);
Dec 18 05:18:07.328 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:18:07.328 INFO [stderr]     |
Dec 18 05:18:07.328 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 05:18:07.328 INFO [stderr] 
Dec 18 05:18:07.330 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 05:18:07.330 INFO [stderr]    --> src/main.rs:133:9
Dec 18 05:18:07.330 INFO [stderr]     |
Dec 18 05:18:07.330 INFO [stderr] 133 |         fs::remove_file(out_path);
Dec 18 05:18:07.330 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:18:07.330 INFO [stderr]     |
Dec 18 05:18:07.330 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 05:18:07.330 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 05:18:07.330 INFO [stderr] 
Dec 18 05:18:07.330 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 05:18:07.330 INFO [stderr]    --> src/main.rs:143:21
Dec 18 05:18:07.331 INFO [stderr]     |
Dec 18 05:18:07.331 INFO [stderr] 143 |                     out_file.write_all(&instruction_bytes);
Dec 18 05:18:07.331 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:18:07.331 INFO [stderr]     |
Dec 18 05:18:07.331 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 05:18:07.331 INFO [stderr] 
Dec 18 05:18:07.366 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
Dec 18 05:18:09.516 INFO running `"docker" "inspect" "cc48eb43fa4f49f4d0e72ab613a5fcffecdd5e7a328cd731853eb960b4c8c2e2"`
Dec 18 05:18:09.651 INFO running `"docker" "rm" "-f" "cc48eb43fa4f49f4d0e72ab613a5fcffecdd5e7a328cd731853eb960b4c8c2e2"`
Dec 18 05:18:09.748 INFO [stdout] cc48eb43fa4f49f4d0e72ab613a5fcffecdd5e7a328cd731853eb960b4c8c2e2