[INFO] cloning repository https://github.com/cronokirby/iku
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cronokirby/iku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcronokirby%2Fiku", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcronokirby%2Fiku'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d567cb80522a7bd2c84eb61ca86bb6229798f819
[INFO] testing cronokirby/iku against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcronokirby%2Fiku" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cronokirby/iku on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cronokirby/iku
[INFO] finished tweaking git repo https://github.com/cronokirby/iku
[INFO] tweaked toml for git repo https://github.com/cronokirby/iku written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/cronokirby/iku already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustversion v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "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] 982ef31b26390a23ef19ff5e08c7ac631b7d4056f8379fa2283cc48d5d69d113
[INFO] running `Command { std: "docker" "start" "-a" "982ef31b26390a23ef19ff5e08c7ac631b7d4056f8379fa2283cc48d5d69d113", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "982ef31b26390a23ef19ff5e08c7ac631b7d4056f8379fa2283cc48d5d69d113", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "982ef31b26390a23ef19ff5e08c7ac631b7d4056f8379fa2283cc48d5d69d113", kill_on_drop: false }`
[INFO] [stdout] 982ef31b26390a23ef19ff5e08c7ac631b7d4056f8379fa2283cc48d5d69d113
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31537db128a6da7ecac2c70275d57fd685300115ede1ca67d7322fdac49aa4f8
[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" "31537db128a6da7ecac2c70275d57fd685300115ede1ca67d7322fdac49aa4f8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling bit-vec v0.5.1
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling lalrpop-util v0.17.2
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling ena v0.13.1
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling rustversion v1.0.1
[INFO] [stderr]    Compiling syn-mid v0.4.0
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling bit-set v0.5.1
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling proc-macro-error v0.4.4
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.3
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling structopt-derive v0.4.0
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling structopt v0.3.7
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling lalrpop v0.17.2
[INFO] [stderr]    Compiling iku v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4174:5
[INFO] [stdout]      |
[INFO] [stdout] 4174 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4174 -     (__0)
[INFO] [stdout] 4174 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4267:5
[INFO] [stdout]      |
[INFO] [stdout] 4267 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4267 -     (__0)
[INFO] [stdout] 4267 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4285:5
[INFO] [stdout]      |
[INFO] [stdout] 4285 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4285 -     (__0)
[INFO] [stdout] 4285 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4303:5
[INFO] [stdout]      |
[INFO] [stdout] 4303 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4303 -     (__0)
[INFO] [stdout] 4303 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4331:5
[INFO] [stdout]      |
[INFO] [stdout] 4331 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4331 -     (__0)
[INFO] [stdout] 4331 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4379:5
[INFO] [stdout]      |
[INFO] [stdout] 4379 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4379 -     (__0)
[INFO] [stdout] 4379 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4407:5
[INFO] [stdout]      |
[INFO] [stdout] 4407 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4407 -     (__0)
[INFO] [stdout] 4407 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4445:5
[INFO] [stdout]      |
[INFO] [stdout] 4445 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4445 -     (__0)
[INFO] [stdout] 4445 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4462:5
[INFO] [stdout]      |
[INFO] [stdout] 4462 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4462 -     (__0)
[INFO] [stdout] 4462 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4505:5
[INFO] [stdout]      |
[INFO] [stdout] 4505 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4505 -     (__0)
[INFO] [stdout] 4505 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4513:5
[INFO] [stdout]      |
[INFO] [stdout] 4513 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4513 -     (__0)
[INFO] [stdout] 4513 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4523:5
[INFO] [stdout]      |
[INFO] [stdout] 4523 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4523 -     (__0)
[INFO] [stdout] 4523 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4564:5
[INFO] [stdout]      |
[INFO] [stdout] 4564 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4564 -     (__0)
[INFO] [stdout] 4564 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4614:5
[INFO] [stdout]      |
[INFO] [stdout] 4614 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4614 -     (__0)
[INFO] [stdout] 4614 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4708:5
[INFO] [stdout]      |
[INFO] [stdout] 4708 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4708 -     (__0)
[INFO] [stdout] 4708 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4802:5
[INFO] [stdout]      |
[INFO] [stdout] 4802 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4802 -     (__0)
[INFO] [stdout] 4802 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4862:5
[INFO] [stdout]      |
[INFO] [stdout] 4862 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4862 -     (__0)
[INFO] [stdout] 4862 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4905:5
[INFO] [stdout]      |
[INFO] [stdout] 4905 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4905 -     (__0)
[INFO] [stdout] 4905 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4948:5
[INFO] [stdout]      |
[INFO] [stdout] 4948 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4948 -     (__0)
[INFO] [stdout] 4948 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4974:5
[INFO] [stdout]      |
[INFO] [stdout] 4974 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4974 -     (__0)
[INFO] [stdout] 4974 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `message`
[INFO] [stdout]  --> src/typer.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     message: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Error` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/typer.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Clone, Debug)]
[INFO] [stdout]   |          ^^^^^  ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.91s
[INFO] running `Command { std: "docker" "inspect" "31537db128a6da7ecac2c70275d57fd685300115ede1ca67d7322fdac49aa4f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31537db128a6da7ecac2c70275d57fd685300115ede1ca67d7322fdac49aa4f8", kill_on_drop: false }`
[INFO] [stdout] 31537db128a6da7ecac2c70275d57fd685300115ede1ca67d7322fdac49aa4f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49fe06c4fdfb337e7e51178d5c12c14d8294b673484a0318fc65451850830363
[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" "49fe06c4fdfb337e7e51178d5c12c14d8294b673484a0318fc65451850830363", kill_on_drop: false }`
[INFO] [stderr]    Compiling iku v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4174:5
[INFO] [stdout]      |
[INFO] [stdout] 4174 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4174 -     (__0)
[INFO] [stdout] 4174 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4267:5
[INFO] [stdout]      |
[INFO] [stdout] 4267 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4267 -     (__0)
[INFO] [stdout] 4267 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4285:5
[INFO] [stdout]      |
[INFO] [stdout] 4285 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4285 -     (__0)
[INFO] [stdout] 4285 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4303:5
[INFO] [stdout]      |
[INFO] [stdout] 4303 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4303 -     (__0)
[INFO] [stdout] 4303 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4331:5
[INFO] [stdout]      |
[INFO] [stdout] 4331 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4331 -     (__0)
[INFO] [stdout] 4331 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4379:5
[INFO] [stdout]      |
[INFO] [stdout] 4379 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4379 -     (__0)
[INFO] [stdout] 4379 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4407:5
[INFO] [stdout]      |
[INFO] [stdout] 4407 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4407 -     (__0)
[INFO] [stdout] 4407 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4445:5
[INFO] [stdout]      |
[INFO] [stdout] 4445 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4445 -     (__0)
[INFO] [stdout] 4445 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4462:5
[INFO] [stdout]      |
[INFO] [stdout] 4462 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4462 -     (__0)
[INFO] [stdout] 4462 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4505:5
[INFO] [stdout]      |
[INFO] [stdout] 4505 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4505 -     (__0)
[INFO] [stdout] 4505 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4513:5
[INFO] [stdout]      |
[INFO] [stdout] 4513 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4513 -     (__0)
[INFO] [stdout] 4513 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4523:5
[INFO] [stdout]      |
[INFO] [stdout] 4523 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4523 -     (__0)
[INFO] [stdout] 4523 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4564:5
[INFO] [stdout]      |
[INFO] [stdout] 4564 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4564 -     (__0)
[INFO] [stdout] 4564 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4614:5
[INFO] [stdout]      |
[INFO] [stdout] 4614 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4614 -     (__0)
[INFO] [stdout] 4614 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4708:5
[INFO] [stdout]      |
[INFO] [stdout] 4708 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4708 -     (__0)
[INFO] [stdout] 4708 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4802:5
[INFO] [stdout]      |
[INFO] [stdout] 4802 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4802 -     (__0)
[INFO] [stdout] 4802 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4862:5
[INFO] [stdout]      |
[INFO] [stdout] 4862 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4862 -     (__0)
[INFO] [stdout] 4862 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4905:5
[INFO] [stdout]      |
[INFO] [stdout] 4905 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4905 -     (__0)
[INFO] [stdout] 4905 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4948:5
[INFO] [stdout]      |
[INFO] [stdout] 4948 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4948 -     (__0)
[INFO] [stdout] 4948 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4974:5
[INFO] [stdout]      |
[INFO] [stdout] 4974 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4974 -     (__0)
[INFO] [stdout] 4974 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `message`
[INFO] [stdout]  --> src/typer.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     message: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Error` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/typer.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Clone, Debug)]
[INFO] [stdout]   |          ^^^^^  ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.20s
[INFO] running `Command { std: "docker" "inspect" "49fe06c4fdfb337e7e51178d5c12c14d8294b673484a0318fc65451850830363", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49fe06c4fdfb337e7e51178d5c12c14d8294b673484a0318fc65451850830363", kill_on_drop: false }`
[INFO] [stdout] 49fe06c4fdfb337e7e51178d5c12c14d8294b673484a0318fc65451850830363
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4a3dedcf902c8b78449f9158b031cb079aecb93394e2f386821035a8257fff13
[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" "4a3dedcf902c8b78449f9158b031cb079aecb93394e2f386821035a8257fff13", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4174:5
[INFO] [stderr]      |
[INFO] [stderr] 4174 |     (__0)
[INFO] [stderr]      |     ^   ^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 4174 -     (__0)
[INFO] [stderr] 4174 +     __0
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4267:5
[INFO] [stderr]      |
[INFO] [stderr] 4267 |     (__0)
[INFO] [stderr]      |     ^   ^
[INFO] [stderr]      |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 4267 -     (__0)
[INFO] [stderr] 4267 +     __0
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4285:5
[INFO] [stderr]      |
[INFO] [stderr] 4285 |     (__0)
[INFO] [stderr]      |     ^   ^
[INFO] [stderr]      |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 4285 -     (__0)
[INFO] [stderr] 4285 +     __0
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4303:5
[INFO] [stderr]      |
[INFO] [stderr] 4303 |     (__0)
[INFO] [stderr]      |     ^   ^
[INFO] [stderr]      |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 4303 -     (__0)
[INFO] [stderr] 4303 +     __0
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4331:5
[INFO] [stderr]      |
[INFO] [stderr] 4331 |     (__0)
[INFO] [stderr]      |     ^   ^
[INFO] [stderr]      |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 4331 -     (__0)
[INFO] [stderr] 4331 +     __0
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4379:5
[INFO] [stderr]      |
[INFO] [stderr] 4379 |     (__0)
[INFO] [stderr]      |     ^   ^
[INFO] [stderr]      |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 4379 -     (__0)
[INFO] [stderr] 4379 +     __0
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4407:5
[INFO] [stderr]      |
[INFO] [stderr] 4407 |     (__0)
[INFO] [stderr]      |     ^   ^
[INFO] [stderr]      |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 4407 -     (__0)
[INFO] [stderr] 4407 +     __0
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4445:5
[INFO] [stderr]      |
[INFO] [stderr] 4445 |     (__0)
[INFO] [stderr]      |     ^   ^
[INFO] [stderr]      |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 4445 -     (__0)
[INFO] [stderr] 4445 +     __0
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4462:5
[INFO] [stderr]      |
[INFO] [stderr] 4462 |     (__0)
[INFO] [stderr]      |     ^   ^
[INFO] [stderr]      |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 4462 -     (__0)
[INFO] [stderr] 4462 +     __0
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4505:5
[INFO] [stderr]      |
[INFO] [stderr] 4505 |     (__0)
[INFO] [stderr]      |     ^   ^
[INFO] [stderr]      |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 4505 -     (__0)
[INFO] [stderr] 4505 +     __0
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4513:5
[INFO] [stderr]      |
[INFO] [stderr] 4513 |     (__0)
[INFO] [stderr]      |     ^   ^
[INFO] [stderr]      |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 4513 -     (__0)
[INFO] [stderr] 4513 +     __0
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4523:5
[INFO] [stderr]      |
[INFO] [stderr] 4523 |     (__0)
[INFO] [stderr]      |     ^   ^
[INFO] [stderr]      |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 4523 -     (__0)
[INFO] [stderr] 4523 +     __0
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4564:5
[INFO] [stderr]      |
[INFO] [stderr] 4564 |     (__0)
[INFO] [stderr]      |     ^   ^
[INFO] [stderr]      |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 4564 -     (__0)
[INFO] [stderr] 4564 +     __0
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4614:5
[INFO] [stderr]      |
[INFO] [stderr] 4614 |     (__0)
[INFO] [stderr]      |     ^   ^
[INFO] [stderr]      |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 4614 -     (__0)
[INFO] [stderr] 4614 +     __0
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4708:5
[INFO] [stderr]      |
[INFO] [stderr] 4708 |     (__0)
[INFO] [stderr]      |     ^   ^
[INFO] [stderr]      |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 4708 -     (__0)
[INFO] [stderr] 4708 +     __0
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4802:5
[INFO] [stderr]      |
[INFO] [stderr] 4802 |     (__0)
[INFO] [stderr]      |     ^   ^
[INFO] [stderr]      |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 4802 -     (__0)
[INFO] [stderr] 4802 +     __0
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4862:5
[INFO] [stderr]      |
[INFO] [stderr] 4862 |     (__0)
[INFO] [stderr]      |     ^   ^
[INFO] [stderr]      |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 4862 -     (__0)
[INFO] [stderr] 4862 +     __0
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4905:5
[INFO] [stderr]      |
[INFO] [stderr] 4905 |     (__0)
[INFO] [stderr]      |     ^   ^
[INFO] [stderr]      |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 4905 -     (__0)
[INFO] [stderr] 4905 +     __0
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4948:5
[INFO] [stderr]      |
[INFO] [stderr] 4948 |     (__0)
[INFO] [stderr]      |     ^   ^
[INFO] [stderr]      |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 4948 -     (__0)
[INFO] [stderr] 4948 +     __0
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/iku-bf9313dea423bf25/out/parse_ast.rs:4974:5
[INFO] [stderr]      |
[INFO] [stderr] 4974 |     (__0)
[INFO] [stderr]      |     ^   ^
[INFO] [stderr]      |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 4974 -     (__0)
[INFO] [stderr] 4974 +     __0
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `message`
[INFO] [stderr]  --> src/typer.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     message: String,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `Error` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/typer.rs:6:10
[INFO] [stderr]   |
[INFO] [stderr] 6 | #[derive(Clone, Debug)]
[INFO] [stderr]   |          ^^^^^  ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `iku` (bin "iku" test) generated 21 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/iku-0c9fa5d4970bd04d)
[INFO] [stdout] 
[INFO] [stdout] running 28 tests
[INFO] [stdout] test ast::test::display_works_for_single_tuples ... ok
[INFO] [stdout] test lexer::test::string_litterals_lex ... ok
[INFO] [stdout] test lexer::test::unicode_names_can_be_lexed ... ok
[INFO] [stdout] test lexer::test::spaces_are_skipped_when_lexing ... ok
[INFO] [stdout] test test_programs::test_prog_11 ... ok
[INFO] [stdout] test test_programs::test_prog_13 ... ok
[INFO] [stdout] test test_programs::test_prog_16 ... ok
[INFO] [stdout] test test_programs::test_prog_12 ... ok
[INFO] [stdout] test test_programs::test_prog_1 ... ok
[INFO] [stdout] test test_programs::test_prog_10 ... ok
[INFO] [stdout] test test_programs::test_prog_18 ... ok
[INFO] [stdout] test test_programs::test_prog_17 ... ok
[INFO] [stdout] test test_programs::test_prog_2 ... ok
[INFO] [stdout] test test_programs::test_prog_19 ... ok
[INFO] [stdout] test test_programs::test_prog_14 ... ok
[INFO] [stdout] test test_programs::test_prog_20 ... ok
[INFO] [stdout] test test_programs::test_prog_15 ... ok
[INFO] [stdout] test test_programs::test_prog_21 ... ok
[INFO] [stdout] test test_programs::test_prog_22 ... ok
[INFO] [stdout] test test_programs::test_prog_23 ... ok
[INFO] [stdout] test test_programs::test_prog_24 ... ok
[INFO] [stdout] test test_programs::test_prog_6 ... ok
[INFO] [stdout] test test_programs::test_prog_3 ... ok
[INFO] [stdout] test test_programs::test_prog_4 ... ok
[INFO] [stdout] test test_programs::test_prog_7 ... ok
[INFO] [stdout] test test_programs::test_prog_9 ... ok
[INFO] [stdout] test test_programs::test_prog_5 ... ok
[INFO] [stdout] test test_programs::test_prog_8 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 28 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4a3dedcf902c8b78449f9158b031cb079aecb93394e2f386821035a8257fff13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a3dedcf902c8b78449f9158b031cb079aecb93394e2f386821035a8257fff13", kill_on_drop: false }`
[INFO] [stdout] 4a3dedcf902c8b78449f9158b031cb079aecb93394e2f386821035a8257fff13