Dec 18 15:09:22.085 INFO checking hrm_interpreter-0.2.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 15:09:22.085 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/hrm_interpreter/0.2.0:/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 15:09:22.416 INFO [stdout] d43f48047d7d4dfe3ee5f156d89aa52e06d10a010b1cfd7d27413ba3aa0272d5
Dec 18 15:09:22.422 INFO running `"docker" "start" "-a" "d43f48047d7d4dfe3ee5f156d89aa52e06d10a010b1cfd7d27413ba3aa0272d5"`
Dec 18 15:09:23.291 INFO [stderr]     Checking hrm_interpreter v0.2.0 (/opt/crater/workdir)
Dec 18 15:09:24.388 INFO [stderr] warning: unused variable: `operation`
Dec 18 15:09:24.388 INFO [stderr]    --> src/operators/add.rs:257:7
Dec 18 15:09:24.388 INFO [stderr]     |
Dec 18 15:09:24.388 INFO [stderr] 257 |         let operation = AddOp{cell: Location::Cell(0)};
Dec 18 15:09:24.388 INFO [stderr]     |             ^^^^^^^^^ help: consider using `_operation` instead
Dec 18 15:09:24.388 INFO [stderr]     |
Dec 18 15:09:24.388 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 15:09:24.388 INFO [stderr] 
Dec 18 15:09:24.528 INFO [stderr] warning: method is never used: `new`
Dec 18 15:09:24.528 INFO [stderr]   --> src/json.rs:43:5
Dec 18 15:09:24.528 INFO [stderr]    |
Dec 18 15:09:24.528 INFO [stderr] 43 |     fn new(operation: String, operand: Option<JsonOperand>) -> Self {
Dec 18 15:09:24.528 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:09:24.528 INFO [stderr]    |
Dec 18 15:09:24.528 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 15:09:24.528 INFO [stderr] 
Dec 18 15:09:24.529 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:09:24.529 INFO [stderr]    --> src/json.rs:240:9
Dec 18 15:09:24.529 INFO [stderr]     |
Dec 18 15:09:24.529 INFO [stderr] 240 |         file.write(raw_state.as_bytes());
Dec 18 15:09:24.529 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:09:24.529 INFO [stderr]     |
Dec 18 15:09:24.529 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 15:09:24.529 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:09:24.529 INFO [stderr] 
Dec 18 15:09:24.529 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:09:24.529 INFO [stderr]    --> src/json.rs:242:9
Dec 18 15:09:24.529 INFO [stderr]     |
Dec 18 15:09:24.529 INFO [stderr] 242 |         file.write(b"\n");
Dec 18 15:09:24.529 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^
Dec 18 15:09:24.529 INFO [stderr]     |
Dec 18 15:09:24.529 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:09:24.529 INFO [stderr] 
Dec 18 15:09:24.600 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:09:24.600 INFO [stderr]    --> src/json.rs:240:9
Dec 18 15:09:24.600 INFO [stderr]     |
Dec 18 15:09:24.600 INFO [stderr] 240 |         file.write(raw_state.as_bytes());
Dec 18 15:09:24.600 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:09:24.600 INFO [stderr]     |
Dec 18 15:09:24.600 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 15:09:24.600 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:09:24.600 INFO [stderr] 
Dec 18 15:09:24.600 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:09:24.600 INFO [stderr]    --> src/json.rs:242:9
Dec 18 15:09:24.600 INFO [stderr]     |
Dec 18 15:09:24.600 INFO [stderr] 242 |         file.write(b"\n");
Dec 18 15:09:24.600 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^
Dec 18 15:09:24.600 INFO [stderr]     |
Dec 18 15:09:24.600 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:09:24.600 INFO [stderr] 
Dec 18 15:09:26.195 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.97s
Dec 18 15:09:26.782 INFO running `"docker" "inspect" "d43f48047d7d4dfe3ee5f156d89aa52e06d10a010b1cfd7d27413ba3aa0272d5"`
Dec 18 15:09:27.044 INFO running `"docker" "rm" "-f" "d43f48047d7d4dfe3ee5f156d89aa52e06d10a010b1cfd7d27413ba3aa0272d5"`
Dec 18 15:09:27.344 INFO [stdout] d43f48047d7d4dfe3ee5f156d89aa52e06d10a010b1cfd7d27413ba3aa0272d5