Dec 17 19:02:43.277 INFO checking n3phtys/lmdb-rs-example-benchmark against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 19:02:43.277 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/n3phtys/lmdb-rs-example-benchmark:/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 17 19:02:43.710 INFO [stdout] f56d68b0c77f30feb5937664841aa25306a87ba18173d4e207f9bdf35f2b879f
Dec 17 19:02:43.711 INFO running `"docker" "start" "-a" "f56d68b0c77f30feb5937664841aa25306a87ba18173d4e207f9bdf35f2b879f"`
Dec 17 19:02:45.804 INFO [stderr]    Compiling lmdb-sys v0.7.1
Dec 17 19:02:45.804 INFO [stderr]     Checking tempdir v0.3.5
Dec 17 19:02:48.128 INFO [stderr]     Checking lmdb v0.7.1
Dec 17 19:02:48.808 INFO [stderr]     Checking lmdb-rs-benchmark v0.1.0 (/opt/crater/workdir)
Dec 17 19:02:49.498 INFO [stderr] warning: unused variable: `database`
Dec 17 19:02:49.499 INFO [stderr]   --> benches/benchmark.rs:49:13
Dec 17 19:02:49.499 INFO [stderr]    |
Dec 17 19:02:49.499 INFO [stderr] 49 |         let database = db_environment.create_db(None, db_flags).unwrap();
Dec 17 19:02:49.499 INFO [stderr]    |             ^^^^^^^^ help: consider using `_database` instead
Dec 17 19:02:49.500 INFO [stderr]    |
Dec 17 19:02:49.500 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 19:02:49.500 INFO [stderr] 
Dec 17 19:02:49.500 INFO [stderr] warning: unused variable: `key`
Dec 17 19:02:49.500 INFO [stderr]   --> benches/benchmark.rs:59:17
Dec 17 19:02:49.500 INFO [stderr]    |
Dec 17 19:02:49.500 INFO [stderr] 59 |             let key = transform_u32_to_array_of_u8(iteration);
Dec 17 19:02:49.500 INFO [stderr]    |                 ^^^ help: consider using `_key` instead
Dec 17 19:02:49.500 INFO [stderr] 
Dec 17 19:02:49.500 INFO [stderr] warning: unused variable: `key`
Dec 17 19:02:49.500 INFO [stderr]   --> benches/benchmark.rs:87:17
Dec 17 19:02:49.500 INFO [stderr]    |
Dec 17 19:02:49.500 INFO [stderr] 87 |             let key = transform_u32_to_array_of_u8(iteration);
Dec 17 19:02:49.500 INFO [stderr]    |                 ^^^ help: consider using `_key` instead
Dec 17 19:02:49.500 INFO [stderr] 
Dec 17 19:02:49.500 INFO [stderr] warning: unused variable: `key`
Dec 17 19:02:49.500 INFO [stderr]    --> benches/benchmark.rs:115:17
Dec 17 19:02:49.500 INFO [stderr]     |
Dec 17 19:02:49.500 INFO [stderr] 115 |             let key = transform_u32_to_array_of_u8(iteration);
Dec 17 19:02:49.500 INFO [stderr]     |                 ^^^ help: consider using `_key` instead
Dec 17 19:02:49.500 INFO [stderr] 
Dec 17 19:02:49.500 INFO [stderr] warning: unused variable: `db_flags`
Dec 17 19:02:49.500 INFO [stderr]    --> benches/benchmark.rs:131:13
Dec 17 19:02:49.500 INFO [stderr]     |
Dec 17 19:02:49.500 INFO [stderr] 131 |         let db_flags: lmdb::DatabaseFlags = lmdb::DatabaseFlags::empty();
Dec 17 19:02:49.500 INFO [stderr]     |             ^^^^^^^^ help: consider using `_db_flags` instead
Dec 17 19:02:49.500 INFO [stderr] 
Dec 17 19:02:49.500 INFO [stderr] warning: unused variable: `db_environment`
Dec 17 19:02:49.500 INFO [stderr]    --> benches/benchmark.rs:132:13
Dec 17 19:02:49.500 INFO [stderr]     |
Dec 17 19:02:49.500 INFO [stderr] 132 |         let db_environment = lmdb::Environment::new().set_max_dbs(1).open(dir.as_ref()).unwrap();
Dec 17 19:02:49.500 INFO [stderr]     |             ^^^^^^^^^^^^^^ help: consider using `_db_environment` instead
Dec 17 19:02:49.500 INFO [stderr] 
Dec 17 19:02:49.500 INFO [stderr] warning: unused variable: `key`
Dec 17 19:02:49.500 INFO [stderr]    --> benches/benchmark.rs:143:17
Dec 17 19:02:49.501 INFO [stderr]     |
Dec 17 19:02:49.501 INFO [stderr] 143 |             let key = transform_u32_to_array_of_u8(iteration);
Dec 17 19:02:49.501 INFO [stderr]     |                 ^^^ help: consider using `_key` instead
Dec 17 19:02:49.501 INFO [stderr] 
Dec 17 19:02:49.604 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.90s
Dec 17 19:02:51.045 INFO running `"docker" "inspect" "f56d68b0c77f30feb5937664841aa25306a87ba18173d4e207f9bdf35f2b879f"`
Dec 17 19:02:51.312 INFO running `"docker" "rm" "-f" "f56d68b0c77f30feb5937664841aa25306a87ba18173d4e207f9bdf35f2b879f"`
Dec 17 19:02:51.684 INFO [stdout] f56d68b0c77f30feb5937664841aa25306a87ba18173d4e207f9bdf35f2b879f