Dec 19 20:56:14.249 INFO checking ahamid/rxor against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 20:56:14.249 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/ahamid/rxor:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 20:56:14.684 INFO [stdout] e3c1ab86df1cc5d6ce8c7aab7f47ed854312b5301bf756ae753d0a0f3c69c5d4
Dec 19 20:56:14.690 INFO running `"docker" "start" "-a" "e3c1ab86df1cc5d6ce8c7aab7f47ed854312b5301bf756ae753d0a0f3c69c5d4"`
Dec 19 20:56:15.759 INFO [stderr]     Checking rxor v0.1.0 (/opt/crater/workdir)
Dec 19 20:56:15.991 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:56:15.991 INFO [stderr]   --> src/main.rs:26:5
Dec 19 20:56:15.991 INFO [stderr]    |
Dec 19 20:56:15.991 INFO [stderr] 26 |     w.write_all(&[b0 ^ b1]);
Dec 19 20:56:15.991 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:56:15.991 INFO [stderr]    |
Dec 19 20:56:15.991 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 20:56:15.991 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:56:15.991 INFO [stderr] 
Dec 19 20:56:15.991 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:56:15.991 INFO [stderr]   --> src/main.rs:28:3
Dec 19 20:56:15.991 INFO [stderr]    |
Dec 19 20:56:15.991 INFO [stderr] 28 |   w.flush();
Dec 19 20:56:15.991 INFO [stderr]    |   ^^^^^^^^^^
Dec 19 20:56:15.991 INFO [stderr]    |
Dec 19 20:56:15.991 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:56:15.991 INFO [stderr] 
Dec 19 20:56:16.000 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:56:16.000 INFO [stderr]   --> src/main.rs:26:5
Dec 19 20:56:16.000 INFO [stderr]    |
Dec 19 20:56:16.000 INFO [stderr] 26 |     w.write_all(&[b0 ^ b1]);
Dec 19 20:56:16.000 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:56:16.000 INFO [stderr]    |
Dec 19 20:56:16.000 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 20:56:16.000 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:56:16.000 INFO [stderr] 
Dec 19 20:56:16.000 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:56:16.000 INFO [stderr]   --> src/main.rs:28:3
Dec 19 20:56:16.000 INFO [stderr]    |
Dec 19 20:56:16.000 INFO [stderr] 28 |   w.flush();
Dec 19 20:56:16.000 INFO [stderr]    |   ^^^^^^^^^^
Dec 19 20:56:16.000 INFO [stderr]    |
Dec 19 20:56:16.000 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:56:16.000 INFO [stderr] 
Dec 19 20:56:16.011 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.26s
Dec 19 20:56:16.366 INFO running `"docker" "inspect" "e3c1ab86df1cc5d6ce8c7aab7f47ed854312b5301bf756ae753d0a0f3c69c5d4"`
Dec 19 20:56:16.463 INFO running `"docker" "rm" "-f" "e3c1ab86df1cc5d6ce8c7aab7f47ed854312b5301bf756ae753d0a0f3c69c5d4"`
Dec 19 20:56:16.607 INFO [stdout] e3c1ab86df1cc5d6ce8c7aab7f47ed854312b5301bf756ae753d0a0f3c69c5d4