[INFO] cloning repository https://github.com/bruno-anjos/alpha
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bruno-anjos/alpha" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbruno-anjos%2Falpha", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbruno-anjos%2Falpha'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56c2034fd0e8ed294213cc2d6622a2fcd9d20d7a
[INFO] testing bruno-anjos/alpha against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbruno-anjos%2Falpha" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bruno-anjos/alpha on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bruno-anjos/alpha
[INFO] finished tweaking git repo https://github.com/bruno-anjos/alpha
[INFO] tweaked toml for git repo https://github.com/bruno-anjos/alpha written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/bruno-anjos/alpha already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded precomputed-hash v0.1.1
[INFO] [stderr]   Downloaded strsim v0.9.2
[INFO] [stderr]   Downloaded ascii-canvas v2.0.0
[INFO] [stderr]   Downloaded docopt v1.1.0
[INFO] [stderr]   Downloaded string_cache_shared v0.3.0
[INFO] [stderr]   Downloaded lalrpop-util v0.17.1
[INFO] [stderr]   Downloaded rust-argon2 v0.5.0
[INFO] [stderr]   Downloaded syn v0.15.43
[INFO] [stderr]   Downloaded new_debug_unreachable v1.0.3
[INFO] [stderr]   Downloaded string_cache v0.7.3
[INFO] [stderr]   Downloaded string_cache_codegen v0.4.2
[INFO] [stderr]   Downloaded ena v0.13.0
[INFO] [stderr]   Downloaded lalrpop v0.17.1
[INFO] [stderr]   Downloaded blake2b_simd v0.5.6
[INFO] [stderr]   Downloaded diff v0.1.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", 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] bf122c4c607a082acbbefbaf01aa245723067bfaadb11c9eb37b11604e3c5775
[INFO] running `Command { std: "docker" "start" "-a" "bf122c4c607a082acbbefbaf01aa245723067bfaadb11c9eb37b11604e3c5775", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf122c4c607a082acbbefbaf01aa245723067bfaadb11c9eb37b11604e3c5775", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf122c4c607a082acbbefbaf01aa245723067bfaadb11c9eb37b11604e3c5775", kill_on_drop: false }`
[INFO] [stdout] bf122c4c607a082acbbefbaf01aa245723067bfaadb11c9eb37b11604e3c5775
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] 7aa870e52211b6cfd78927fd1482011285c0217c2e8e9d9b9c3a835d527d04eb
[INFO] running `Command { std: "docker" "start" "-a" "7aa870e52211b6cfd78927fd1482011285c0217c2e8e9d9b9c3a835d527d04eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling syn v0.15.43
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]    Compiling regex-syntax v0.6.11
[INFO] [stderr]    Compiling lalrpop-util v0.17.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling ena v0.13.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]    Compiling regex v1.2.1
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling serde_derive v1.0.98
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling lalrpop v0.17.1
[INFO] [stderr]    Compiling alpha v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17668:5
[INFO] [stdout]       |
[INFO] [stdout] 17668 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout]       = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17668 -     (__0)
[INFO] [stdout] 17668 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17679:5
[INFO] [stdout]       |
[INFO] [stdout] 17679 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17679 -     (__0)
[INFO] [stdout] 17679 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17690:5
[INFO] [stdout]       |
[INFO] [stdout] 17690 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17690 -     (__0)
[INFO] [stdout] 17690 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17701:5
[INFO] [stdout]       |
[INFO] [stdout] 17701 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17701 -     (__0)
[INFO] [stdout] 17701 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17712:5
[INFO] [stdout]       |
[INFO] [stdout] 17712 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17712 -     (__0)
[INFO] [stdout] 17712 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17723:5
[INFO] [stdout]       |
[INFO] [stdout] 17723 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17723 -     (__0)
[INFO] [stdout] 17723 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17734:5
[INFO] [stdout]       |
[INFO] [stdout] 17734 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17734 -     (__0)
[INFO] [stdout] 17734 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17745:5
[INFO] [stdout]       |
[INFO] [stdout] 17745 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17745 -     (__0)
[INFO] [stdout] 17745 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17756:5
[INFO] [stdout]       |
[INFO] [stdout] 17756 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17756 -     (__0)
[INFO] [stdout] 17756 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17767:5
[INFO] [stdout]       |
[INFO] [stdout] 17767 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17767 -     (__0)
[INFO] [stdout] 17767 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17778:5
[INFO] [stdout]       |
[INFO] [stdout] 17778 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17778 -     (__0)
[INFO] [stdout] 17778 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17919:5
[INFO] [stdout]       |
[INFO] [stdout] 17919 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17919 -     (__0)
[INFO] [stdout] 17919 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17943:5
[INFO] [stdout]       |
[INFO] [stdout] 17943 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17943 -     (__0)
[INFO] [stdout] 17943 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 50s
[INFO] running `Command { std: "docker" "inspect" "7aa870e52211b6cfd78927fd1482011285c0217c2e8e9d9b9c3a835d527d04eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7aa870e52211b6cfd78927fd1482011285c0217c2e8e9d9b9c3a835d527d04eb", kill_on_drop: false }`
[INFO] [stdout] 7aa870e52211b6cfd78927fd1482011285c0217c2e8e9d9b9c3a835d527d04eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--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] a55a47b12433894496ebfc69848ef3fa5076743d87b50f75f035c5ff22b2c364
[INFO] running `Command { std: "docker" "start" "-a" "a55a47b12433894496ebfc69848ef3fa5076743d87b50f75f035c5ff22b2c364", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling alpha v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17668:5
[INFO] [stdout]       |
[INFO] [stdout] 17668 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout]       = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17668 -     (__0)
[INFO] [stdout] 17668 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17679:5
[INFO] [stdout]       |
[INFO] [stdout] 17679 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17679 -     (__0)
[INFO] [stdout] 17679 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17690:5
[INFO] [stdout]       |
[INFO] [stdout] 17690 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17690 -     (__0)
[INFO] [stdout] 17690 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17701:5
[INFO] [stdout]       |
[INFO] [stdout] 17701 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17701 -     (__0)
[INFO] [stdout] 17701 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17712:5
[INFO] [stdout]       |
[INFO] [stdout] 17712 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17712 -     (__0)
[INFO] [stdout] 17712 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17723:5
[INFO] [stdout]       |
[INFO] [stdout] 17723 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17723 -     (__0)
[INFO] [stdout] 17723 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17734:5
[INFO] [stdout]       |
[INFO] [stdout] 17734 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17734 -     (__0)
[INFO] [stdout] 17734 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17745:5
[INFO] [stdout]       |
[INFO] [stdout] 17745 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17745 -     (__0)
[INFO] [stdout] 17745 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17756:5
[INFO] [stdout]       |
[INFO] [stdout] 17756 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17756 -     (__0)
[INFO] [stdout] 17756 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17767:5
[INFO] [stdout]       |
[INFO] [stdout] 17767 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17767 -     (__0)
[INFO] [stdout] 17767 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17778:5
[INFO] [stdout]       |
[INFO] [stdout] 17778 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17778 -     (__0)
[INFO] [stdout] 17778 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17919:5
[INFO] [stdout]       |
[INFO] [stdout] 17919 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17919 -     (__0)
[INFO] [stdout] 17919 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17943:5
[INFO] [stdout]       |
[INFO] [stdout] 17943 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 17943 -     (__0)
[INFO] [stdout] 17943 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.57s
[INFO] running `Command { std: "docker" "inspect" "a55a47b12433894496ebfc69848ef3fa5076743d87b50f75f035c5ff22b2c364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a55a47b12433894496ebfc69848ef3fa5076743d87b50f75f035c5ff22b2c364", kill_on_drop: false }`
[INFO] [stdout] a55a47b12433894496ebfc69848ef3fa5076743d87b50f75f035c5ff22b2c364
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", 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] e075723c4e6e11688f6c04e6733790547ae268917f9d715715a84da91c4e15fe
[INFO] running `Command { std: "docker" "start" "-a" "e075723c4e6e11688f6c04e6733790547ae268917f9d715715a84da91c4e15fe", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17668:5
[INFO] [stderr]       |
[INFO] [stderr] 17668 |     (__0)
[INFO] [stderr]       |     ^   ^
[INFO] [stderr]       |
[INFO] [stderr]       = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]       |
[INFO] [stderr] 17668 -     (__0)
[INFO] [stderr] 17668 +     __0
[INFO] [stderr]       | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17679:5
[INFO] [stderr]       |
[INFO] [stderr] 17679 |     (__0)
[INFO] [stderr]       |     ^   ^
[INFO] [stderr]       |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]       |
[INFO] [stderr] 17679 -     (__0)
[INFO] [stderr] 17679 +     __0
[INFO] [stderr]       | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17690:5
[INFO] [stderr]       |
[INFO] [stderr] 17690 |     (__0)
[INFO] [stderr]       |     ^   ^
[INFO] [stderr]       |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]       |
[INFO] [stderr] 17690 -     (__0)
[INFO] [stderr] 17690 +     __0
[INFO] [stderr]       | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17701:5
[INFO] [stderr]       |
[INFO] [stderr] 17701 |     (__0)
[INFO] [stderr]       |     ^   ^
[INFO] [stderr]       |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]       |
[INFO] [stderr] 17701 -     (__0)
[INFO] [stderr] 17701 +     __0
[INFO] [stderr]       | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17712:5
[INFO] [stderr]       |
[INFO] [stderr] 17712 |     (__0)
[INFO] [stderr]       |     ^   ^
[INFO] [stderr]       |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]       |
[INFO] [stderr] 17712 -     (__0)
[INFO] [stderr] 17712 +     __0
[INFO] [stderr]       | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17723:5
[INFO] [stderr]       |
[INFO] [stderr] 17723 |     (__0)
[INFO] [stderr]       |     ^   ^
[INFO] [stderr]       |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]       |
[INFO] [stderr] 17723 -     (__0)
[INFO] [stderr] 17723 +     __0
[INFO] [stderr]       | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17734:5
[INFO] [stderr]       |
[INFO] [stderr] 17734 |     (__0)
[INFO] [stderr]       |     ^   ^
[INFO] [stderr]       |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]       |
[INFO] [stderr] 17734 -     (__0)
[INFO] [stderr] 17734 +     __0
[INFO] [stderr]       | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17745:5
[INFO] [stderr]       |
[INFO] [stderr] 17745 |     (__0)
[INFO] [stderr]       |     ^   ^
[INFO] [stderr]       |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]       |
[INFO] [stderr] 17745 -     (__0)
[INFO] [stderr] 17745 +     __0
[INFO] [stderr]       | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17756:5
[INFO] [stderr]       |
[INFO] [stderr] 17756 |     (__0)
[INFO] [stderr]       |     ^   ^
[INFO] [stderr]       |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]       |
[INFO] [stderr] 17756 -     (__0)
[INFO] [stderr] 17756 +     __0
[INFO] [stderr]       | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17767:5
[INFO] [stderr]       |
[INFO] [stderr] 17767 |     (__0)
[INFO] [stderr]       |     ^   ^
[INFO] [stderr]       |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]       |
[INFO] [stderr] 17767 -     (__0)
[INFO] [stderr] 17767 +     __0
[INFO] [stderr]       | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17778:5
[INFO] [stderr]       |
[INFO] [stderr] 17778 |     (__0)
[INFO] [stderr]       |     ^   ^
[INFO] [stderr]       |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]       |
[INFO] [stderr] 17778 -     (__0)
[INFO] [stderr] 17778 +     __0
[INFO] [stderr]       | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17919:5
[INFO] [stderr]       |
[INFO] [stderr] 17919 |     (__0)
[INFO] [stderr]       |     ^   ^
[INFO] [stderr]       |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]       |
[INFO] [stderr] 17919 -     (__0)
[INFO] [stderr] 17919 +     __0
[INFO] [stderr]       | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]      --> /opt/rustwide/target/debug/build/alpha-1e35e8150da8d375/out/parser.rs:17943:5
[INFO] [stderr]       |
[INFO] [stderr] 17943 |     (__0)
[INFO] [stderr]       |     ^   ^
[INFO] [stderr]       |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]       |
[INFO] [stderr] 17943 -     (__0)
[INFO] [stderr] 17943 +     __0
[INFO] [stderr]       | 
[INFO] [stderr] 
[INFO] [stderr] warning: `alpha` (bin "alpha" test) generated 13 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/alpha-587cb1d0983a143d)
[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" "e075723c4e6e11688f6c04e6733790547ae268917f9d715715a84da91c4e15fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e075723c4e6e11688f6c04e6733790547ae268917f9d715715a84da91c4e15fe", kill_on_drop: false }`
[INFO] [stdout] e075723c4e6e11688f6c04e6733790547ae268917f9d715715a84da91c4e15fe