[INFO] updating cached repository https://github.com/eazar001/wam-prolog-in-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d42eff559a41e53c4f582bd25216c4821832ef0a
[INFO] testing eazar001/wam-prolog-in-rust against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feazar001%2Fwam-prolog-in-rust" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/eazar001/wam-prolog-in-rust on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/eazar001/wam-prolog-in-rust
[INFO] finished tweaking git repo https://github.com/eazar001/wam-prolog-in-rust
[INFO] tweaked toml for git repo https://github.com/eazar001/wam-prolog-in-rust written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/eazar001/wam-prolog-in-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e604741de027c521c4b17892c8e1e7dc3a682a13f8813f427d8291daea67ff2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7e604741de027c521c4b17892c8e1e7dc3a682a13f8813f427d8291daea67ff2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e604741de027c521c4b17892c8e1e7dc3a682a13f8813f427d8291daea67ff2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e604741de027c521c4b17892c8e1e7dc3a682a13f8813f427d8291daea67ff2", kill_on_drop: false }`
[INFO] [stdout] 7e604741de027c521c4b17892c8e1e7dc3a682a13f8813f427d8291daea67ff2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2ecf87b6977090e39b014564c9183e38335944818ac3e162c13b77b07e519966
[INFO] running `Command { std: "docker" "start" "-a" "2ecf87b6977090e39b014564c9183e38335944818ac3e162c13b77b07e519966", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]    Compiling lalrpop-util v0.17.2
[INFO] [stderr]    Compiling diff v0.1.11
[INFO] [stderr]    Compiling block-padding v0.1.4
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling ena v0.13.0
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling aho-corasick v0.7.4
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling regex v1.1.9
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling serde_derive v1.0.94
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling lalrpop v0.17.2
[INFO] [stderr]    Compiling bfg-prolog v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9783:5
[INFO] [stdout]      |
[INFO] [stdout] 9783 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9794:5
[INFO] [stdout]      |
[INFO] [stdout] 9794 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9805:5
[INFO] [stdout]      |
[INFO] [stdout] 9805 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9816:5
[INFO] [stdout]      |
[INFO] [stdout] 9816 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9827:5
[INFO] [stdout]      |
[INFO] [stdout] 9827 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9838:5
[INFO] [stdout]      |
[INFO] [stdout] 9838 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9849:5
[INFO] [stdout]      |
[INFO] [stdout] 9849 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9860:5
[INFO] [stdout]      |
[INFO] [stdout] 9860 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9783:5
[INFO] [stdout]      |
[INFO] [stdout] 9783 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9794:5
[INFO] [stdout]      |
[INFO] [stdout] 9794 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9805:5
[INFO] [stdout]      |
[INFO] [stdout] 9805 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9816:5
[INFO] [stdout]      |
[INFO] [stdout] 9816 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9827:5
[INFO] [stdout]      |
[INFO] [stdout] 9827 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9838:5
[INFO] [stdout]      |
[INFO] [stdout] 9838 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9849:5
[INFO] [stdout]      |
[INFO] [stdout] 9849 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9860:5
[INFO] [stdout]      |
[INFO] [stdout] 9860 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 46s
[INFO] running `Command { std: "docker" "inspect" "2ecf87b6977090e39b014564c9183e38335944818ac3e162c13b77b07e519966", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ecf87b6977090e39b014564c9183e38335944818ac3e162c13b77b07e519966", kill_on_drop: false }`
[INFO] [stdout] 2ecf87b6977090e39b014564c9183e38335944818ac3e162c13b77b07e519966
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0e2ceacb96c50aee69f0c81c7ececa29d5ff62efee938202906c9d53a947083
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b0e2ceacb96c50aee69f0c81c7ececa29d5ff62efee938202906c9d53a947083", kill_on_drop: false }`
[INFO] [stderr]    Compiling bfg-prolog v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9783:5
[INFO] [stdout]      |
[INFO] [stdout] 9783 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9794:5
[INFO] [stdout]      |
[INFO] [stdout] 9794 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9805:5
[INFO] [stdout]      |
[INFO] [stdout] 9805 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9816:5
[INFO] [stdout]      |
[INFO] [stdout] 9816 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9827:5
[INFO] [stdout]      |
[INFO] [stdout] 9827 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9838:5
[INFO] [stdout]      |
[INFO] [stdout] 9838 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9849:5
[INFO] [stdout]      |
[INFO] [stdout] 9849 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9860:5
[INFO] [stdout]      |
[INFO] [stdout] 9860 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9783:5
[INFO] [stdout]      |
[INFO] [stdout] 9783 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9794:5
[INFO] [stdout]      |
[INFO] [stdout] 9794 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9805:5
[INFO] [stdout]      |
[INFO] [stdout] 9805 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9816:5
[INFO] [stdout]      |
[INFO] [stdout] 9816 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9827:5
[INFO] [stdout]      |
[INFO] [stdout] 9827 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9838:5
[INFO] [stdout]      |
[INFO] [stdout] 9838 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9849:5
[INFO] [stdout]      |
[INFO] [stdout] 9849 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9860:5
[INFO] [stdout]      |
[INFO] [stdout] 9860 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9783:5
[INFO] [stdout]      |
[INFO] [stdout] 9783 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9794:5
[INFO] [stdout]      |
[INFO] [stdout] 9794 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9805:5
[INFO] [stdout]      |
[INFO] [stdout] 9805 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9816:5
[INFO] [stdout]      |
[INFO] [stdout] 9816 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9827:5
[INFO] [stdout]      |
[INFO] [stdout] 9827 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9838:5
[INFO] [stdout]      |
[INFO] [stdout] 9838 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9849:5
[INFO] [stdout]      |
[INFO] [stdout] 9849 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9860:5
[INFO] [stdout]      |
[INFO] [stdout] 9860 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9783:5
[INFO] [stdout]      |
[INFO] [stdout] 9783 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9794:5
[INFO] [stdout]      |
[INFO] [stdout] 9794 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9805:5
[INFO] [stdout]      |
[INFO] [stdout] 9805 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9816:5
[INFO] [stdout]      |
[INFO] [stdout] 9816 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9827:5
[INFO] [stdout]      |
[INFO] [stdout] 9827 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9838:5
[INFO] [stdout]      |
[INFO] [stdout] 9838 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9849:5
[INFO] [stdout]      |
[INFO] [stdout] 9849 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9860:5
[INFO] [stdout]      |
[INFO] [stdout] 9860 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9783:5
[INFO] [stdout]      |
[INFO] [stdout] 9783 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9794:5
[INFO] [stdout]      |
[INFO] [stdout] 9794 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9805:5
[INFO] [stdout]      |
[INFO] [stdout] 9805 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9816:5
[INFO] [stdout]      |
[INFO] [stdout] 9816 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9827:5
[INFO] [stdout]      |
[INFO] [stdout] 9827 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9838:5
[INFO] [stdout]      |
[INFO] [stdout] 9838 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9849:5
[INFO] [stdout]      |
[INFO] [stdout] 9849 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9860:5
[INFO] [stdout]      |
[INFO] [stdout] 9860 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.15s
[INFO] running `Command { std: "docker" "inspect" "b0e2ceacb96c50aee69f0c81c7ececa29d5ff62efee938202906c9d53a947083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0e2ceacb96c50aee69f0c81c7ececa29d5ff62efee938202906c9d53a947083", kill_on_drop: false }`
[INFO] [stdout] b0e2ceacb96c50aee69f0c81c7ececa29d5ff62efee938202906c9d53a947083
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5508afe568087162ca159df6821fe4a851c2c5c70821506e123ef5a37e1fe773
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5508afe568087162ca159df6821fe4a851c2c5c70821506e123ef5a37e1fe773", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9783:5
[INFO] [stderr]      |
[INFO] [stderr] 9783 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9794:5
[INFO] [stderr]      |
[INFO] [stderr] 9794 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9805:5
[INFO] [stderr]      |
[INFO] [stderr] 9805 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9816:5
[INFO] [stderr]      |
[INFO] [stderr] 9816 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9827:5
[INFO] [stderr]      |
[INFO] [stderr] 9827 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9838:5
[INFO] [stderr]      |
[INFO] [stderr] 9838 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9849:5
[INFO] [stderr]      |
[INFO] [stderr] 9849 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9860:5
[INFO] [stderr]      |
[INFO] [stderr] 9860 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9783:5
[INFO] [stderr]      |
[INFO] [stderr] 9783 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9794:5
[INFO] [stderr]      |
[INFO] [stderr] 9794 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9805:5
[INFO] [stderr]      |
[INFO] [stderr] 9805 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9816:5
[INFO] [stderr]      |
[INFO] [stderr] 9816 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9827:5
[INFO] [stderr]      |
[INFO] [stderr] 9827 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9838:5
[INFO] [stderr]      |
[INFO] [stderr] 9838 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9849:5
[INFO] [stderr]      |
[INFO] [stderr] 9849 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9860:5
[INFO] [stderr]      |
[INFO] [stderr] 9860 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9783:5
[INFO] [stderr]      |
[INFO] [stderr] 9783 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9794:5
[INFO] [stderr]      |
[INFO] [stderr] 9794 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9805:5
[INFO] [stderr]      |
[INFO] [stderr] 9805 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9816:5
[INFO] [stderr]      |
[INFO] [stderr] 9816 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9827:5
[INFO] [stderr]      |
[INFO] [stderr] 9827 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9838:5
[INFO] [stderr]      |
[INFO] [stderr] 9838 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9849:5
[INFO] [stderr]      |
[INFO] [stderr] 9849 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9860:5
[INFO] [stderr]      |
[INFO] [stderr] 9860 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9783:5
[INFO] [stderr]      |
[INFO] [stderr] 9783 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9794:5
[INFO] [stderr]      |
[INFO] [stderr] 9794 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9805:5
[INFO] [stderr]      |
[INFO] [stderr] 9805 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9816:5
[INFO] [stderr]      |
[INFO] [stderr] 9816 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9827:5
[INFO] [stderr]      |
[INFO] [stderr] 9827 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9838:5
[INFO] [stderr]      |
[INFO] [stderr] 9838 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9849:5
[INFO] [stderr]      |
[INFO] [stderr] 9849 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9860:5
[INFO] [stderr]      |
[INFO] [stderr] 9860 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9783:5
[INFO] [stderr]      |
[INFO] [stderr] 9783 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9794:5
[INFO] [stderr]      |
[INFO] [stderr] 9794 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9805:5
[INFO] [stderr]      |
[INFO] [stderr] 9805 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9816:5
[INFO] [stderr]      |
[INFO] [stderr] 9816 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9827:5
[INFO] [stderr]      |
[INFO] [stderr] 9827 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9838:5
[INFO] [stderr]      |
[INFO] [stderr] 9838 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9849:5
[INFO] [stderr]      |
[INFO] [stderr] 9849 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/bfg-prolog-69ed4ce998a74721/out/parser.rs:9860:5
[INFO] [stderr]      |
[INFO] [stderr] 9860 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bfg_prolog-94bd80ea61501dc9
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test tests::test_occurs_1_succeeds ... ok
[INFO] [stdout] test tests::test_occurs_2_fails ... ok
[INFO] [stdout] test tests::test_occurs_3_fails ... ok
[INFO] [stdout] test tests::test_occurs_1_fails ... ok
[INFO] [stdout] test tests::test_occurs_3_succeeds ... ok
[INFO] [stdout] test tests::test_unify_12_succeeds ... ok
[INFO] [stdout] test tests::test_unify_10_succeeds ... ok
[INFO] [stdout] test tests::test_unify_1_succeeds ... ok
[INFO] [stdout] test tests::test_unify_5_succeeds ... ok
[INFO] [stdout] test tests::test_unify_9_succeeds ... ok
[INFO] [stdout] test tests::test_unify_8_succeeds ... ok
[INFO] [stdout] test tests::test_unify_6_succeeds ... ok
[INFO] [stdout] test tests::test_unify_4_succeeds ... ok
[INFO] [stdout] test tests::test_unify_3_succeeds ... ok
[INFO] [stdout] test tests::test_unify_7_succeeds ... ok
[INFO] [stdout] test tests::test_unify_2_succeeds ... ok
[INFO] [stdout] test tests::test_unify_10_fails ... ok
[INFO] [stdout] test tests::test_unify_11_fails ... ok
[INFO] [stdout] test tests::test_unify_1_fails ... ok
[INFO] [stdout] test tests::test_unify_12_fails ... ok
[INFO] [stdout] test tests::test_unify_9_fails ... ok
[INFO] [stdout] test tests::test_unify_7_fails ... ok
[INFO] [stdout] test tests::test_unify_5_fails ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bfg_prolog-df1c5f277f91f6ed
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/query_tests-8f3291b43f073ded
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 29 tests
[INFO] [stdout] test test_basic_11_succeeds ... ok
[INFO] [stdout] test test_basic_12_succeeds ... ok
[INFO] [stdout] test test_basic_16_succeeds ... ok
[INFO] [stdout] test test_basic_10_succeeds ... ok
[INFO] [stdout] test test_basic_2_succeeds ... ok
[INFO] [stdout] test test_basic_13_fails ... ok
[INFO] [stdout] test test_basic_1_succeeds ... ok
[INFO] [stdout] test test_basic_14_fails ... ok
[INFO] [stdout] test test_basic_3_fails ... ok
[INFO] [stdout] test test_basic_4_succeeds ... ok
[INFO] [stdout] test test_basic_15_succeeds ... ok
[INFO] [stdout] test test_basic_3_succeeds ... ok
[INFO] [stdout] test test_basic_17_succeeds ... ok
[INFO] [stdout] test test_basic_14_succeeds ... ok
[INFO] [stdout] test test_basic_12_fails ... ok
[INFO] [stdout] test test_basic_5_succeeds ... ok
[INFO] [stdout] test test_basic_6_succeeds ... ok
[INFO] [stdout] test test_basic_7_succeeds ... ok
[INFO] [stdout] test test_the_expanse_program_1_fails ... ok
[INFO] [stdout] test test_basic_7_fails ... ok
[INFO] [stdout] test test_basic_9_succeeds ... ok
[INFO] [stdout] test test_the_expanse_program_2_succeeds ... ok
[INFO] [stdout] test test_the_expanse_program_2_fails ... ok
[INFO] [stdout] test test_basic_8_succeeds ... ok
[INFO] [stdout] test test_the_expanse_program_3_succeeds ... ok
[INFO] [stdout] test test_the_expanse_program_4_succeeds ... ok
[INFO] [stdout] test test_the_expanse_program_5_succeeds ... ok
[INFO] [stdout] test test_the_expanse_program_3_fails ... ok
[INFO] [stderr]    Doc-tests bfg-prolog
[INFO] [stdout] test test_the_expanse_program_1_succeeds ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 29 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5508afe568087162ca159df6821fe4a851c2c5c70821506e123ef5a37e1fe773", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5508afe568087162ca159df6821fe4a851c2c5c70821506e123ef5a37e1fe773", kill_on_drop: false }`
[INFO] [stdout] 5508afe568087162ca159df6821fe4a851c2c5c70821506e123ef5a37e1fe773