[INFO] fetching crate shorty 0.5.4...
[INFO] testing shorty-0.5.4 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate shorty 0.5.4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate shorty 0.5.4 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate shorty 0.5.4
[INFO] finished tweaking crates.io crate shorty 0.5.4
[INFO] tweaked toml for crates.io crate shorty 0.5.4 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5695ee8d9d25f62466af233109cb25dd2408fd3afb746db1e71c5a738237cf25
[INFO] running `Command { std: "docker" "start" "-a" "5695ee8d9d25f62466af233109cb25dd2408fd3afb746db1e71c5a738237cf25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5695ee8d9d25f62466af233109cb25dd2408fd3afb746db1e71c5a738237cf25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5695ee8d9d25f62466af233109cb25dd2408fd3afb746db1e71c5a738237cf25", kill_on_drop: false }`
[INFO] [stdout] 5695ee8d9d25f62466af233109cb25dd2408fd3afb746db1e71c5a738237cf25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e2fd8cb77570932b73d1ef965fd7728e0610d293a10e3a739c29ee98b75d42f
[INFO] running `Command { std: "docker" "start" "-a" "0e2fd8cb77570932b73d1ef965fd7728e0610d293a10e3a739c29ee98b75d42f", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling ascii v0.9.3
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling redis v0.10.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling nanoid v0.2.0
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling combine v3.8.1
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling tokio-sync v0.1.8
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-executor v0.1.10
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling shorty v0.5.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.09s
[INFO] running `Command { std: "docker" "inspect" "0e2fd8cb77570932b73d1ef965fd7728e0610d293a10e3a739c29ee98b75d42f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e2fd8cb77570932b73d1ef965fd7728e0610d293a10e3a739c29ee98b75d42f", kill_on_drop: false }`
[INFO] [stdout] 0e2fd8cb77570932b73d1ef965fd7728e0610d293a10e3a739c29ee98b75d42f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6e2372e6a8552d91d15c2b7e959d7f6054f0b2bd27144dfbe17dd7e44dad890
[INFO] running `Command { std: "docker" "start" "-a" "e6e2372e6a8552d91d15c2b7e959d7f6054f0b2bd27144dfbe17dd7e44dad890", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling shorty v0.5.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:337:9
[INFO] [stdout]     |
[INFO] [stdout] 337 | /         &redis
[INFO] [stdout] 338 | |             .get_string_answers
[INFO] [stdout] 339 | |             .borrow_mut()
[INFO] [stdout] 340 | |             .push(Ok(String::from("test url")));
[INFO] [stdout]     | |_______________________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 337 |         let _ = &redis
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:350:9
[INFO] [stdout]     |
[INFO] [stdout] 350 |         &redis.get_bool_answers.borrow_mut().push(Ok(true));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 350 |         let _ = &redis.get_bool_answers.borrow_mut().push(Ok(true));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:351:9
[INFO] [stdout]     |
[INFO] [stdout] 351 |         &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 351 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:352:9
[INFO] [stdout]     |
[INFO] [stdout] 352 |         &redis.incr_answers.borrow_mut().push(Ok(1));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 352 |         let _ = &redis.incr_answers.borrow_mut().push(Ok(1));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:353:9
[INFO] [stdout]     |
[INFO] [stdout] 353 |         &redis.expire_answers.borrow_mut().push(Ok(()));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 353 |         let _ = &redis.expire_answers.borrow_mut().push(Ok(()));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:356:9
[INFO] [stdout]     |
[INFO] [stdout] 356 |         &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 356 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:359:9
[INFO] [stdout]     |
[INFO] [stdout] 359 |         &redis.set_answers.borrow_mut().push(Ok(()));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 359 |         let _ = &redis.set_answers.borrow_mut().push(Ok(()));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:373:9
[INFO] [stdout]     |
[INFO] [stdout] 373 |         &redis.get_bool_answers.borrow_mut().push(Ok(true));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 373 |         let _ = &redis.get_bool_answers.borrow_mut().push(Ok(true));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:376:9
[INFO] [stdout]     |
[INFO] [stdout] 376 |         &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 376 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:379:9
[INFO] [stdout]     |
[INFO] [stdout] 379 |         &redis.set_answers.borrow_mut().push(Ok(()));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 379 |         let _ = &redis.set_answers.borrow_mut().push(Ok(()));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:393:9
[INFO] [stdout]     |
[INFO] [stdout] 393 |         &redis.get_bool_answers.borrow_mut().push(Ok(true));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 393 |         let _ = &redis.get_bool_answers.borrow_mut().push(Ok(true));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:394:9
[INFO] [stdout]     |
[INFO] [stdout] 394 |         &redis.exists_answers.borrow_mut().push(Ok(true));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 394 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(true));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:395:9
[INFO] [stdout]     |
[INFO] [stdout] 395 |         &redis.incr_answers.borrow_mut().push(Ok(2));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 395 |         let _ = &redis.incr_answers.borrow_mut().push(Ok(2));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:398:9
[INFO] [stdout]     |
[INFO] [stdout] 398 |         &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 398 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:401:9
[INFO] [stdout]     |
[INFO] [stdout] 401 |         &redis.set_answers.borrow_mut().push(Ok(()));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 401 |         let _ = &redis.set_answers.borrow_mut().push(Ok(()));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:415:9
[INFO] [stdout]     |
[INFO] [stdout] 415 |         &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 415 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:418:9
[INFO] [stdout]     |
[INFO] [stdout] 418 |         &redis.set_answers.borrow_mut().push(Ok(()));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 418 |         let _ = &redis.set_answers.borrow_mut().push(Ok(()));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:433:9
[INFO] [stdout]     |
[INFO] [stdout] 433 |         &redis.get_bool_answers.borrow_mut().push(Ok(true));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 433 |         let _ = &redis.get_bool_answers.borrow_mut().push(Ok(true));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:434:9
[INFO] [stdout]     |
[INFO] [stdout] 434 |         &redis.exists_answers.borrow_mut().push(Ok(true));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 434 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(true));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:435:9
[INFO] [stdout]     |
[INFO] [stdout] 435 |         &redis.incr_answers.borrow_mut().push(Ok(rate_limit + 1));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 435 |         let _ = &redis.incr_answers.borrow_mut().push(Ok(rate_limit + 1));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:449:9
[INFO] [stdout]     |
[INFO] [stdout] 449 |         &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 449 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:463:9
[INFO] [stdout]     |
[INFO] [stdout] 463 |         &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 463 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:478:9
[INFO] [stdout]     |
[INFO] [stdout] 478 |         &redis.get_bool_answers.borrow_mut().push(Ok(true));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 478 |         let _ = &redis.get_bool_answers.borrow_mut().push(Ok(true));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:479:9
[INFO] [stdout]     |
[INFO] [stdout] 479 |         &redis.exists_answers.borrow_mut().push(Ok(true));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 479 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(true));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:480:9
[INFO] [stdout]     |
[INFO] [stdout] 480 |         &redis.incr_answers.borrow_mut().push(Ok(1));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 480 |         let _ = &redis.incr_answers.borrow_mut().push(Ok(1));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:483:9
[INFO] [stdout]     |
[INFO] [stdout] 483 |         &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 483 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:486:9
[INFO] [stdout]     |
[INFO] [stdout] 486 |         &redis.set_answers.borrow_mut().push(Ok(()));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 486 |         let _ = &redis.set_answers.borrow_mut().push(Ok(()));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:489:9
[INFO] [stdout]     |
[INFO] [stdout] 489 |         &redis.get_bool_answers.borrow_mut().push(Ok(true));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 489 |         let _ = &redis.get_bool_answers.borrow_mut().push(Ok(true));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:490:9
[INFO] [stdout]     |
[INFO] [stdout] 490 |         &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 490 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:491:9
[INFO] [stdout]     |
[INFO] [stdout] 491 |         &redis.incr_answers.borrow_mut().push(Ok(1));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 491 |         let _ = &redis.incr_answers.borrow_mut().push(Ok(1));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:492:9
[INFO] [stdout]     |
[INFO] [stdout] 492 |         &redis.expire_answers.borrow_mut().push(Ok(()));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 492 |         let _ = &redis.expire_answers.borrow_mut().push(Ok(()));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:495:9
[INFO] [stdout]     |
[INFO] [stdout] 495 |         &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 495 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:498:9
[INFO] [stdout]     |
[INFO] [stdout] 498 |         &redis.set_answers.borrow_mut().push(Ok(()));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 498 |         let _ = &redis.set_answers.borrow_mut().push(Ok(()));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:520:9
[INFO] [stdout]     |
[INFO] [stdout] 520 |         &redis.get_bool_answers.borrow_mut().push(Ok(false));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 520 |         let _ = &redis.get_bool_answers.borrow_mut().push(Ok(false));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:535:9
[INFO] [stdout]     |
[INFO] [stdout] 535 |         &redis.exists_answers.borrow_mut().push(Ok(true));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 535 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(true));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:536:9
[INFO] [stdout]     |
[INFO] [stdout] 536 |         &redis.exists_answers.borrow_mut().push(Ok(true));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 536 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(true));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 36 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.51s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/shorty-aa93f59428a702cb)
[INFO] running `Command { std: "docker" "inspect" "e6e2372e6a8552d91d15c2b7e959d7f6054f0b2bd27144dfbe17dd7e44dad890", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6e2372e6a8552d91d15c2b7e959d7f6054f0b2bd27144dfbe17dd7e44dad890", kill_on_drop: false }`
[INFO] [stdout] e6e2372e6a8552d91d15c2b7e959d7f6054f0b2bd27144dfbe17dd7e44dad890
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 47ef39666197ff87c7cea0211f32ee6a729864ceeb4b40915b606ee19fb12372
[INFO] running `Command { std: "docker" "start" "-a" "47ef39666197ff87c7cea0211f32ee6a729864ceeb4b40915b606ee19fb12372", kill_on_drop: false }`
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:337:9
[INFO] [stderr]     |
[INFO] [stderr] 337 | /         &redis
[INFO] [stderr] 338 | |             .get_string_answers
[INFO] [stderr] 339 | |             .borrow_mut()
[INFO] [stderr] 340 | |             .push(Ok(String::from("test url")));
[INFO] [stderr]     | |_______________________________________________^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 337 |         let _ = &redis
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:350:9
[INFO] [stderr]     |
[INFO] [stderr] 350 |         &redis.get_bool_answers.borrow_mut().push(Ok(true));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 350 |         let _ = &redis.get_bool_answers.borrow_mut().push(Ok(true));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:351:9
[INFO] [stderr]     |
[INFO] [stderr] 351 |         &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 351 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:352:9
[INFO] [stderr]     |
[INFO] [stderr] 352 |         &redis.incr_answers.borrow_mut().push(Ok(1));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 352 |         let _ = &redis.incr_answers.borrow_mut().push(Ok(1));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:353:9
[INFO] [stderr]     |
[INFO] [stderr] 353 |         &redis.expire_answers.borrow_mut().push(Ok(()));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 353 |         let _ = &redis.expire_answers.borrow_mut().push(Ok(()));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:356:9
[INFO] [stderr]     |
[INFO] [stderr] 356 |         &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 356 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:359:9
[INFO] [stderr]     |
[INFO] [stderr] 359 |         &redis.set_answers.borrow_mut().push(Ok(()));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 359 |         let _ = &redis.set_answers.borrow_mut().push(Ok(()));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:373:9
[INFO] [stderr]     |
[INFO] [stderr] 373 |         &redis.get_bool_answers.borrow_mut().push(Ok(true));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 373 |         let _ = &redis.get_bool_answers.borrow_mut().push(Ok(true));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:376:9
[INFO] [stderr]     |
[INFO] [stderr] 376 |         &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 376 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:379:9
[INFO] [stderr]     |
[INFO] [stderr] 379 |         &redis.set_answers.borrow_mut().push(Ok(()));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 379 |         let _ = &redis.set_answers.borrow_mut().push(Ok(()));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:393:9
[INFO] [stderr]     |
[INFO] [stderr] 393 |         &redis.get_bool_answers.borrow_mut().push(Ok(true));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 393 |         let _ = &redis.get_bool_answers.borrow_mut().push(Ok(true));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:394:9
[INFO] [stderr]     |
[INFO] [stderr] 394 |         &redis.exists_answers.borrow_mut().push(Ok(true));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 394 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(true));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:395:9
[INFO] [stderr]     |
[INFO] [stderr] 395 |         &redis.incr_answers.borrow_mut().push(Ok(2));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 395 |         let _ = &redis.incr_answers.borrow_mut().push(Ok(2));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:398:9
[INFO] [stderr]     |
[INFO] [stderr] 398 |         &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 398 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:401:9
[INFO] [stderr]     |
[INFO] [stderr] 401 |         &redis.set_answers.borrow_mut().push(Ok(()));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 401 |         let _ = &redis.set_answers.borrow_mut().push(Ok(()));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:415:9
[INFO] [stderr]     |
[INFO] [stderr] 415 |         &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 415 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:418:9
[INFO] [stderr]     |
[INFO] [stderr] 418 |         &redis.set_answers.borrow_mut().push(Ok(()));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 418 |         let _ = &redis.set_answers.borrow_mut().push(Ok(()));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:433:9
[INFO] [stderr]     |
[INFO] [stderr] 433 |         &redis.get_bool_answers.borrow_mut().push(Ok(true));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 433 |         let _ = &redis.get_bool_answers.borrow_mut().push(Ok(true));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:434:9
[INFO] [stderr]     |
[INFO] [stderr] 434 |         &redis.exists_answers.borrow_mut().push(Ok(true));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 434 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(true));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:435:9
[INFO] [stderr]     |
[INFO] [stderr] 435 |         &redis.incr_answers.borrow_mut().push(Ok(rate_limit + 1));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 435 |         let _ = &redis.incr_answers.borrow_mut().push(Ok(rate_limit + 1));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:449:9
[INFO] [stderr]     |
[INFO] [stderr] 449 |         &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 449 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:463:9
[INFO] [stderr]     |
[INFO] [stderr] 463 |         &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 463 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:478:9
[INFO] [stderr]     |
[INFO] [stderr] 478 |         &redis.get_bool_answers.borrow_mut().push(Ok(true));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 478 |         let _ = &redis.get_bool_answers.borrow_mut().push(Ok(true));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:479:9
[INFO] [stderr]     |
[INFO] [stderr] 479 |         &redis.exists_answers.borrow_mut().push(Ok(true));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 479 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(true));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:480:9
[INFO] [stderr]     |
[INFO] [stderr] 480 |         &redis.incr_answers.borrow_mut().push(Ok(1));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 480 |         let _ = &redis.incr_answers.borrow_mut().push(Ok(1));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:483:9
[INFO] [stderr]     |
[INFO] [stderr] 483 |         &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 483 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:486:9
[INFO] [stderr]     |
[INFO] [stderr] 486 |         &redis.set_answers.borrow_mut().push(Ok(()));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 486 |         let _ = &redis.set_answers.borrow_mut().push(Ok(()));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:489:9
[INFO] [stderr]     |
[INFO] [stderr] 489 |         &redis.get_bool_answers.borrow_mut().push(Ok(true));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 489 |         let _ = &redis.get_bool_answers.borrow_mut().push(Ok(true));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:490:9
[INFO] [stderr]     |
[INFO] [stderr] 490 |         &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 490 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:491:9
[INFO] [stderr]     |
[INFO] [stderr] 491 |         &redis.incr_answers.borrow_mut().push(Ok(1));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 491 |         let _ = &redis.incr_answers.borrow_mut().push(Ok(1));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:492:9
[INFO] [stderr]     |
[INFO] [stderr] 492 |         &redis.expire_answers.borrow_mut().push(Ok(()));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 492 |         let _ = &redis.expire_answers.borrow_mut().push(Ok(()));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:495:9
[INFO] [stderr]     |
[INFO] [stderr] 495 |         &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 495 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(false));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:498:9
[INFO] [stderr]     |
[INFO] [stderr] 498 |         &redis.set_answers.borrow_mut().push(Ok(()));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 498 |         let _ = &redis.set_answers.borrow_mut().push(Ok(()));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:520:9
[INFO] [stderr]     |
[INFO] [stderr] 520 |         &redis.get_bool_answers.borrow_mut().push(Ok(false));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 520 |         let _ = &redis.get_bool_answers.borrow_mut().push(Ok(false));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:535:9
[INFO] [stderr]     |
[INFO] [stderr] 535 |         &redis.exists_answers.borrow_mut().push(Ok(true));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 535 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(true));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:536:9
[INFO] [stderr]     |
[INFO] [stderr] 536 |         &redis.exists_answers.borrow_mut().push(Ok(true));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 536 |         let _ = &redis.exists_answers.borrow_mut().push(Ok(true));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `shorty` (lib test) generated 36 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/shorty-aa93f59428a702cb)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test tests::test_lookup ... ok
[INFO] [stdout] test tests::test_shorten_happy_path_first_call ... ok
[INFO] [stdout] test tests::test_shorten_happy_path_no_api_key ... ok
[INFO] [stdout] test tests::test_shorten_happy_path_no_rate_limit ... ok
[INFO] [stdout] test tests::test_shorten_happy_path_second_call ... ok
[INFO] [stdout] test tests::test_shorten_unhappy_path_invalid_api_key ... ok
[INFO] [stdout] test tests::test_shorten_unhappy_path_bad_url ... ok
[INFO] [stdout] test tests::test_shorten_unhappy_path_rate_limit_exceeded ... ok
[INFO] [stdout] test tests::test_shorten_happy_path_rate_limit_expired ... ok
[INFO] [stdout] test tests::test_shorten_unhappy_path_too_many_attempts_generating_id ... ok
[INFO] [stdout] test tests::test_shorten_unhappy_path_same_domain ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests shorty
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "47ef39666197ff87c7cea0211f32ee6a729864ceeb4b40915b606ee19fb12372", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47ef39666197ff87c7cea0211f32ee6a729864ceeb4b40915b606ee19fb12372", kill_on_drop: false }`
[INFO] [stdout] 47ef39666197ff87c7cea0211f32ee6a729864ceeb4b40915b606ee19fb12372