[INFO] cloning repository https://github.com/amling/r4
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/amling/r4" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famling%2Fr4", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famling%2Fr4'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c46ff8b67bb9ebdcced7c05d847a430aff7403b
[INFO] testing amling/r4 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famling%2Fr4" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/amling/r4 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/amling/r4
[INFO] finished tweaking git repo https://github.com/amling/r4
[INFO] tweaked toml for git repo https://github.com/amling/r4 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/amling/r4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cdf38776f5eb952ccf89145677b6f093de260b8814303e2ab1f7707209e24eea
[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" "cdf38776f5eb952ccf89145677b6f093de260b8814303e2ab1f7707209e24eea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdf38776f5eb952ccf89145677b6f093de260b8814303e2ab1f7707209e24eea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdf38776f5eb952ccf89145677b6f093de260b8814303e2ab1f7707209e24eea", kill_on_drop: false }`
[INFO] [stdout] cdf38776f5eb952ccf89145677b6f093de260b8814303e2ab1f7707209e24eea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c75ea591129c9df4f0bff24cd8189656923b166ff853f8c97fc4d4e80376dc70
[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" "c75ea591129c9df4f0bff24cd8189656923b166ff853f8c97fc4d4e80376dc70", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling proc-macro2 v0.4.21
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling serde v1.0.82
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling misc v1.0.0 (/opt/rustwide/workdir/misc)
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling cc v1.0.28
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling byteorder v1.2.7
[INFO] [stderr]    Compiling validates v1.0.0 (/opt/rustwide/workdir/validates)
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling autocfg v0.1.1
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling bit-vec v0.5.0
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling lalrpop-util v0.17.2
[INFO] [stderr]    Compiling diff v0.1.11
[INFO] [stderr]    Compiling rustc-demangle v0.1.13
[INFO] [stderr]    Compiling wns v1.0.0 (/opt/rustwide/workdir/wns)
[INFO] [stderr]    Compiling phf_shared v0.7.23
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling regex-syntax v0.6.4
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling registry_args v1.0.0 (/opt/rustwide/workdir/registry_args)
[INFO] [stderr]    Compiling opts v1.0.0 (/opt/rustwide/workdir/opts)
[INFO] [stderr]    Compiling bit-set v0.5.0
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling rand_xorshift v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling ena v0.13.1
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.1
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling rlua v0.15.3
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]    Compiling generic-array v0.12.0
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling digest v0.8.0
[INFO] [stderr]    Compiling block-buffer v0.7.0
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling serde_json v1.0.33
[INFO] [stderr]    Compiling registry_args_derive v1.0.0 (/opt/rustwide/workdir/registry_args_derive)
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]    Compiling validates_derive v1.0.0 (/opt/rustwide/workdir/validates_derive)
[INFO] [stderr]    Compiling record v1.0.0 (/opt/rustwide/workdir/record)
[INFO] [stderr]    Compiling stream v1.0.0 (/opt/rustwide/workdir/stream)
[INFO] [stderr]    Compiling bgop v1.0.0 (/opt/rustwide/workdir/bgop)
[INFO] [stderr]    Compiling registry v1.0.0 (/opt/rustwide/workdir/registry)
[INFO] [stderr]    Compiling deaggregator v1.0.0 (/opt/rustwide/workdir/deaggregator)
[INFO] [stderr]    Compiling aggregator v1.0.0 (/opt/rustwide/workdir/aggregator)
[INFO] [stderr]    Compiling sorts v1.0.0 (/opt/rustwide/workdir/sorts)
[INFO] [stderr]    Compiling clumper v1.0.0 (/opt/rustwide/workdir/clumper)
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling docopt v1.0.2
[INFO] [stderr]    Compiling lalrpop v0.17.2
[INFO] [stderr]    Compiling executor v1.0.0 (/opt/rustwide/workdir/executor)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3811:5
[INFO] [stdout]      |
[INFO] [stdout] 3811 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3867:5
[INFO] [stdout]      |
[INFO] [stdout] 3867 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3893:5
[INFO] [stdout]      |
[INFO] [stdout] 3893 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3917:5
[INFO] [stdout]      |
[INFO] [stdout] 3917 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3963:5
[INFO] [stdout]      |
[INFO] [stdout] 3963 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4119:5
[INFO] [stdout]      |
[INFO] [stdout] 4119 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4176:5
[INFO] [stdout]      |
[INFO] [stdout] 4176 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4244:5
[INFO] [stdout]      |
[INFO] [stdout] 4244 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4257:5
[INFO] [stdout]      |
[INFO] [stdout] 4257 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4294:5
[INFO] [stdout]      |
[INFO] [stdout] 4294 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4305:5
[INFO] [stdout]      |
[INFO] [stdout] 4305 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4316:5
[INFO] [stdout]      |
[INFO] [stdout] 4316 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4548:5
[INFO] [stdout]      |
[INFO] [stdout] 4548 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4606:5
[INFO] [stdout]      |
[INFO] [stdout] 4606 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4664:5
[INFO] [stdout]      |
[INFO] [stdout] 4664 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling operation v1.0.0 (/opt/rustwide/workdir/operation)
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling r4 v1.0.0 (/opt/rustwide/workdir/r4)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 01s
[INFO] running `Command { std: "docker" "inspect" "c75ea591129c9df4f0bff24cd8189656923b166ff853f8c97fc4d4e80376dc70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c75ea591129c9df4f0bff24cd8189656923b166ff853f8c97fc4d4e80376dc70", kill_on_drop: false }`
[INFO] [stdout] c75ea591129c9df4f0bff24cd8189656923b166ff853f8c97fc4d4e80376dc70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a0d7db890e9fad8ef94a18c743b857b4c39f91d432a463d57d423b030627bf2
[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" "4a0d7db890e9fad8ef94a18c743b857b4c39f91d432a463d57d423b030627bf2", kill_on_drop: false }`
[INFO] [stderr]    Compiling misc v1.0.0 (/opt/rustwide/workdir/misc)
[INFO] [stderr]    Compiling wns v1.0.0 (/opt/rustwide/workdir/wns)
[INFO] [stderr]    Compiling validates v1.0.0 (/opt/rustwide/workdir/validates)
[INFO] [stderr]    Compiling opts v1.0.0 (/opt/rustwide/workdir/opts)
[INFO] [stderr]    Compiling registry_args v1.0.0 (/opt/rustwide/workdir/registry_args)
[INFO] [stderr]    Compiling record v1.0.0 (/opt/rustwide/workdir/record)
[INFO] [stderr]    Compiling stream v1.0.0 (/opt/rustwide/workdir/stream)
[INFO] [stderr]    Compiling validates_derive v1.0.0 (/opt/rustwide/workdir/validates_derive)
[INFO] [stderr]    Compiling registry_args_derive v1.0.0 (/opt/rustwide/workdir/registry_args_derive)
[INFO] [stderr]    Compiling registry v1.0.0 (/opt/rustwide/workdir/registry)
[INFO] [stderr]    Compiling deaggregator v1.0.0 (/opt/rustwide/workdir/deaggregator)
[INFO] [stderr]    Compiling bgop v1.0.0 (/opt/rustwide/workdir/bgop)
[INFO] [stderr]    Compiling clumper v1.0.0 (/opt/rustwide/workdir/clumper)
[INFO] [stderr]    Compiling aggregator v1.0.0 (/opt/rustwide/workdir/aggregator)
[INFO] [stderr]    Compiling sorts v1.0.0 (/opt/rustwide/workdir/sorts)
[INFO] [stderr]    Compiling executor v1.0.0 (/opt/rustwide/workdir/executor)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3811:5
[INFO] [stdout]      |
[INFO] [stdout] 3811 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3867:5
[INFO] [stdout]      |
[INFO] [stdout] 3867 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3893:5
[INFO] [stdout]      |
[INFO] [stdout] 3893 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3917:5
[INFO] [stdout]      |
[INFO] [stdout] 3917 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3963:5
[INFO] [stdout]      |
[INFO] [stdout] 3963 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4119:5
[INFO] [stdout]      |
[INFO] [stdout] 4119 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4176:5
[INFO] [stdout]      |
[INFO] [stdout] 4176 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4244:5
[INFO] [stdout]      |
[INFO] [stdout] 4244 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4257:5
[INFO] [stdout]      |
[INFO] [stdout] 4257 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4294:5
[INFO] [stdout]      |
[INFO] [stdout] 4294 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4305:5
[INFO] [stdout]      |
[INFO] [stdout] 4305 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4316:5
[INFO] [stdout]      |
[INFO] [stdout] 4316 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4548:5
[INFO] [stdout]      |
[INFO] [stdout] 4548 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4606:5
[INFO] [stdout]      |
[INFO] [stdout] 4606 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4664:5
[INFO] [stdout]      |
[INFO] [stdout] 4664 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3811:5
[INFO] [stdout]      |
[INFO] [stdout] 3811 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3867:5
[INFO] [stdout]      |
[INFO] [stdout] 3867 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3893:5
[INFO] [stdout]      |
[INFO] [stdout] 3893 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3917:5
[INFO] [stdout]      |
[INFO] [stdout] 3917 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3963:5
[INFO] [stdout]      |
[INFO] [stdout] 3963 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4119:5
[INFO] [stdout]      |
[INFO] [stdout] 4119 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4176:5
[INFO] [stdout]      |
[INFO] [stdout] 4176 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4244:5
[INFO] [stdout]      |
[INFO] [stdout] 4244 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4257:5
[INFO] [stdout]      |
[INFO] [stdout] 4257 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4294:5
[INFO] [stdout]      |
[INFO] [stdout] 4294 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4305:5
[INFO] [stdout]      |
[INFO] [stdout] 4305 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4316:5
[INFO] [stdout]      |
[INFO] [stdout] 4316 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4548:5
[INFO] [stdout]      |
[INFO] [stdout] 4548 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4606:5
[INFO] [stdout]      |
[INFO] [stdout] 4606 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4664:5
[INFO] [stdout]      |
[INFO] [stdout] 4664 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling operation v1.0.0 (/opt/rustwide/workdir/operation)
[INFO] [stderr]    Compiling r4 v1.0.0 (/opt/rustwide/workdir/r4)
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 16.16s
[INFO] running `Command { std: "docker" "inspect" "4a0d7db890e9fad8ef94a18c743b857b4c39f91d432a463d57d423b030627bf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a0d7db890e9fad8ef94a18c743b857b4c39f91d432a463d57d423b030627bf2", kill_on_drop: false }`
[INFO] [stdout] 4a0d7db890e9fad8ef94a18c743b857b4c39f91d432a463d57d423b030627bf2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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] aa8de0daef7b9e806d417d9e3b5e7fa8f9bb428c7bd0b34077f03f5546d27f7b
[INFO] running `Command { std: "docker" "start" "-a" "aa8de0daef7b9e806d417d9e3b5e7fa8f9bb428c7bd0b34077f03f5546d27f7b", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3811:5
[INFO] [stderr]      |
[INFO] [stderr] 3811 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3867:5
[INFO] [stderr]      |
[INFO] [stderr] 3867 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3893:5
[INFO] [stderr]      |
[INFO] [stderr] 3893 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3917:5
[INFO] [stderr]      |
[INFO] [stderr] 3917 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3963:5
[INFO] [stderr]      |
[INFO] [stderr] 3963 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4119:5
[INFO] [stderr]      |
[INFO] [stderr] 4119 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4176:5
[INFO] [stderr]      |
[INFO] [stderr] 4176 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4244:5
[INFO] [stderr]      |
[INFO] [stderr] 4244 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4257:5
[INFO] [stderr]      |
[INFO] [stderr] 4257 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4294:5
[INFO] [stderr]      |
[INFO] [stderr] 4294 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4305:5
[INFO] [stderr]      |
[INFO] [stderr] 4305 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4316:5
[INFO] [stderr]      |
[INFO] [stderr] 4316 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4548:5
[INFO] [stderr]      |
[INFO] [stderr] 4548 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4606:5
[INFO] [stderr]      |
[INFO] [stderr] 4606 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4664:5
[INFO] [stderr]      |
[INFO] [stderr] 4664 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3811:5
[INFO] [stderr]      |
[INFO] [stderr] 3811 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3867:5
[INFO] [stderr]      |
[INFO] [stderr] 3867 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3893:5
[INFO] [stderr]      |
[INFO] [stderr] 3893 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3917:5
[INFO] [stderr]      |
[INFO] [stderr] 3917 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3963:5
[INFO] [stderr]      |
[INFO] [stderr] 3963 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4119:5
[INFO] [stderr]      |
[INFO] [stderr] 4119 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4176:5
[INFO] [stderr]      |
[INFO] [stderr] 4176 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4244:5
[INFO] [stderr]      |
[INFO] [stderr] 4244 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4257:5
[INFO] [stderr]      |
[INFO] [stderr] 4257 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4294:5
[INFO] [stderr]      |
[INFO] [stderr] 4294 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4305:5
[INFO] [stderr]      |
[INFO] [stderr] 4305 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4316:5
[INFO] [stderr]      |
[INFO] [stderr] 4316 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4548:5
[INFO] [stderr]      |
[INFO] [stderr] 4548 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4606:5
[INFO] [stderr]      |
[INFO] [stderr] 4606 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4664:5
[INFO] [stderr]      |
[INFO] [stderr] 4664 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/aggregator-69c30f3f8e2b3fc8)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bgop-09987aa6b10faa0e)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/clumper-4b147892ba64b6ed)
[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] [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] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/deaggregator-f4b444ae49af6a49)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/executor-2c8761bdbb94c3bb)
[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] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test lua::tests::test_fp ... ok
[INFO] [stdout] test lua::tests::test_deep_index ... ok
[INFO] [stdout] test lua::tests::test_assign_hash ... ok
[INFO] [stdout] test lua::tests::test_reassign_ud ... ok
[INFO] [stdout] test lua::tests::test_simple ... ok
[INFO] [stdout] test lua::tests::test_to_lua ... ok
[INFO] [stdout] test r4l::tests::test_simple ... ok
[INFO] [stdout] test r4l::tests::test_deep_index ... ok
[INFO] [stdout] test r4l::tests::test_array_literal ... ok
[INFO] [stdout] test lua::tests::test_arr ... ok
[INFO] [stdout] test lua::tests::test_tables_suck ... ok
[INFO] [stdout] test r4l::tests::test_reassign ... ok
[INFO] [stdout] test r4l::tests::test_assign_hash ... ok
[INFO] [stdout] test r4l::tests::test_vars ... ok
[INFO] [stdout] test r4l::tests::test_del ... ok
[INFO] [stdout] test r4l::tests::test_diamond ... ok
[INFO] [stdout] test r4l::tests::test_get_fill ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.36s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/misc-a8717efb1912b073)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/operation-efa08e528279e023)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/opts-0d39b71426f088fe)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/r4-7e4abf8c2c790113)
[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] [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] [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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/record-e7e7fd680e47a6ce)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/registry-41bb8f153a6550e3)
[INFO] [stdout] test tests::test_get_path ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/registry_args-e833ffb4c17ec99b)
[INFO] [stdout] test tests::test_serde ... ok
[INFO] [stdout] test tests::test_set_path ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/registry_args_derive-08acb838f6acde73)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sorts-14dd2a03657216ed)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/stream-9b9c93c6de4722ef)
[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] [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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/validates-0bce9feb4aea064b)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/validates_derive-9c107b36bfbfcc65)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/wns-848aa0a951139e9d)
[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] [stderr]    Doc-tests aggregator
[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] [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] [stderr]    Doc-tests bgop
[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] [stderr]    Doc-tests clumper
[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] [stderr]    Doc-tests deaggregator
[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] [stderr]    Doc-tests executor
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3811:5
[INFO] [stderr]      |
[INFO] [stderr] 3811 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3867:5
[INFO] [stderr]      |
[INFO] [stderr] 3867 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3893:5
[INFO] [stderr]      |
[INFO] [stderr] 3893 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3917:5
[INFO] [stderr]      |
[INFO] [stderr] 3917 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:3963:5
[INFO] [stderr]      |
[INFO] [stderr] 3963 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4119:5
[INFO] [stderr]      |
[INFO] [stderr] 4119 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4176:5
[INFO] [stderr]      |
[INFO] [stderr] 4176 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4244:5
[INFO] [stderr]      |
[INFO] [stderr] 4244 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4257:5
[INFO] [stderr]      |
[INFO] [stderr] 4257 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4294:5
[INFO] [stderr]      |
[INFO] [stderr] 4294 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4305:5
[INFO] [stderr]      |
[INFO] [stderr] 4305 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4316:5
[INFO] [stderr]      |
[INFO] [stderr] 4316 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4548:5
[INFO] [stderr]      |
[INFO] [stderr] 4548 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4606:5
[INFO] [stderr]      |
[INFO] [stderr] 4606 |     (__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/executor-3b4c4f0c358e3ab5/out/r4l/parse.rs:4664:5
[INFO] [stderr]      |
[INFO] [stderr] 4664 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[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] [stderr]    Doc-tests misc
[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] [stderr]    Doc-tests operation
[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] [stderr]    Doc-tests opts
[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] [stderr]    Doc-tests record
[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] [stderr]    Doc-tests registry
[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] [stderr]    Doc-tests registry_args
[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] [stderr]    Doc-tests registry_args_derive
[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] [stderr]    Doc-tests sorts
[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] [stderr]    Doc-tests stream
[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] [stderr]    Doc-tests validates
[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] [stderr]    Doc-tests validates_derive
[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] [stderr]    Doc-tests wns
[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" "aa8de0daef7b9e806d417d9e3b5e7fa8f9bb428c7bd0b34077f03f5546d27f7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa8de0daef7b9e806d417d9e3b5e7fa8f9bb428c7bd0b34077f03f5546d27f7b", kill_on_drop: false }`
[INFO] [stdout] aa8de0daef7b9e806d417d9e3b5e7fa8f9bb428c7bd0b34077f03f5546d27f7b