Dec 04 23:56:51.861 INFO checking Tahler/assembler against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 23:56:51.861 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 23:56:52.196 INFO [stdout] 9bc03d2ec5ef46555435475b8c3128a8d3b73479643244fa9702cb8cb227b9bc
Dec 04 23:56:52.202 INFO running `"docker" "start" "-a" "9bc03d2ec5ef46555435475b8c3128a8d3b73479643244fa9702cb8cb227b9bc"`
Dec 04 23:56:53.022 INFO [stderr] usermod: no changes
Dec 04 23:56:53.067 INFO [stderr]     Checking assembler v0.1.0 (/source)
Dec 04 23:56:53.570 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:56:53.570 INFO [stderr]    --> src/main.rs:133:9
Dec 04 23:56:53.570 INFO [stderr]     |
Dec 04 23:56:53.570 INFO [stderr] 133 |         fs::remove_file(out_path);
Dec 04 23:56:53.570 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:56:53.570 INFO [stderr]     |
Dec 04 23:56:53.570 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 23:56:53.570 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:56:53.570 INFO [stderr] 
Dec 04 23:56:53.570 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:56:53.570 INFO [stderr]    --> src/main.rs:143:21
Dec 04 23:56:53.570 INFO [stderr]     |
Dec 04 23:56:53.570 INFO [stderr] 143 |                     out_file.write_all(&instruction_bytes);
Dec 04 23:56:53.570 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:56:53.570 INFO [stderr]     |
Dec 04 23:56:53.570 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:56:53.570 INFO [stderr] 
Dec 04 23:56:53.598 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:56:53.598 INFO [stderr]    --> src/main.rs:133:9
Dec 04 23:56:53.598 INFO [stderr]     |
Dec 04 23:56:53.598 INFO [stderr] 133 |         fs::remove_file(out_path);
Dec 04 23:56:53.598 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:56:53.598 INFO [stderr]     |
Dec 04 23:56:53.598 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 23:56:53.598 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:56:53.598 INFO [stderr] 
Dec 04 23:56:53.599 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:56:53.599 INFO [stderr]    --> src/main.rs:143:21
Dec 04 23:56:53.599 INFO [stderr]     |
Dec 04 23:56:53.599 INFO [stderr] 143 |                     out_file.write_all(&instruction_bytes);
Dec 04 23:56:53.599 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:56:53.599 INFO [stderr]     |
Dec 04 23:56:53.599 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:56:53.599 INFO [stderr] 
Dec 04 23:56:53.610 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
Dec 04 23:56:53.619 INFO [stderr] su: No module specific data is present
Dec 04 23:56:54.028 INFO running `"docker" "inspect" "9bc03d2ec5ef46555435475b8c3128a8d3b73479643244fa9702cb8cb227b9bc"`
Dec 04 23:56:54.184 INFO running `"docker" "rm" "-f" "9bc03d2ec5ef46555435475b8c3128a8d3b73479643244fa9702cb8cb227b9bc"`
Dec 04 23:56:54.286 INFO [stdout] 9bc03d2ec5ef46555435475b8c3128a8d3b73479643244fa9702cb8cb227b9bc