[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] checking amling/r4 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famling%2Fr4" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/amling/r4 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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-11/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ena v0.13.1
[INFO] [stderr]   Downloaded rlua v0.15.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ab978574a8c4bccd9c116c53b524bd367ce864f5757d6f578421a358c4dec79
[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" "0ab978574a8c4bccd9c116c53b524bd367ce864f5757d6f578421a358c4dec79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ab978574a8c4bccd9c116c53b524bd367ce864f5757d6f578421a358c4dec79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ab978574a8c4bccd9c116c53b524bd367ce864f5757d6f578421a358c4dec79", kill_on_drop: false }`
[INFO] [stdout] 0ab978574a8c4bccd9c116c53b524bd367ce864f5757d6f578421a358c4dec79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20a1d70dac31d614815762ea14fce0d22aaf0e2ee1ca0dc3112bd892a93745d1
[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" "20a1d70dac31d614815762ea14fce0d22aaf0e2ee1ca0dc3112bd892a93745d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.21
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling serde v1.0.82
[INFO] [stderr]     Checking misc v1.0.0 (/opt/rustwide/workdir/misc)
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking validates v1.0.0 (/opt/rustwide/workdir/validates)
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling cc v1.0.28
[INFO] [stderr]    Compiling byteorder v1.2.7
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling byte-tools v0.3.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling autocfg v0.1.1
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling opaque-debug v0.2.1
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling bit-vec v0.5.0
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling diff v0.1.11
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling lalrpop-util v0.17.2
[INFO] [stderr]     Checking wns v1.0.0 (/opt/rustwide/workdir/wns)
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling phf_shared v0.7.23
[INFO] [stderr]    Compiling block-padding v0.1.2
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.6.4
[INFO] [stderr]     Checking rand_xorshift v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking opts v1.0.0 (/opt/rustwide/workdir/opts)
[INFO] [stderr]     Checking registry_args v1.0.0 (/opt/rustwide/workdir/registry_args)
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling bit-set v0.5.0
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.1
[INFO] [stderr]    Compiling ena v0.13.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]    Compiling generic-array v0.12.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling rlua v0.15.3
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling digest v0.8.0
[INFO] [stderr]    Compiling block-buffer v0.7.0
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling term v0.5.2
[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 string_cache v0.7.3
[INFO] [stderr]     Checking serde_json v1.0.33
[INFO] [stderr]     Checking validates_derive v1.0.0 (/opt/rustwide/workdir/validates_derive)
[INFO] [stderr]     Checking registry_args_derive v1.0.0 (/opt/rustwide/workdir/registry_args_derive)
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking record v1.0.0 (/opt/rustwide/workdir/record)
[INFO] [stderr]     Checking stream v1.0.0 (/opt/rustwide/workdir/stream)
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]     Checking bgop v1.0.0 (/opt/rustwide/workdir/bgop)
[INFO] [stderr]     Checking registry v1.0.0 (/opt/rustwide/workdir/registry)
[INFO] [stderr]     Checking deaggregator v1.0.0 (/opt/rustwide/workdir/deaggregator)
[INFO] [stderr]     Checking aggregator v1.0.0 (/opt/rustwide/workdir/aggregator)
[INFO] [stderr]     Checking sorts v1.0.0 (/opt/rustwide/workdir/sorts)
[INFO] [stderr]     Checking clumper v1.0.0 (/opt/rustwide/workdir/clumper)
[INFO] [stderr]     Checking 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] [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: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking operation v1.0.0 (/opt/rustwide/workdir/operation)
[INFO] [stderr]     Checking r4 v1.0.0 (/opt/rustwide/workdir/r4)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 14s
[INFO] running `Command { std: "docker" "inspect" "20a1d70dac31d614815762ea14fce0d22aaf0e2ee1ca0dc3112bd892a93745d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20a1d70dac31d614815762ea14fce0d22aaf0e2ee1ca0dc3112bd892a93745d1", kill_on_drop: false }`
[INFO] [stdout] 20a1d70dac31d614815762ea14fce0d22aaf0e2ee1ca0dc3112bd892a93745d1