[INFO] cloning repository https://github.com/NLincoln/u-cc-v2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NLincoln/u-cc-v2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNLincoln%2Fu-cc-v2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNLincoln%2Fu-cc-v2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c4f93dec6554b2f021dca74170d4507de326b50a
[INFO] checking NLincoln/u-cc-v2/c4f93dec6554b2f021dca74170d4507de326b50a against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNLincoln%2Fu-cc-v2" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/NLincoln/u-cc-v2 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6-tc1/source/.cargo/config
[INFO] started tweaking git repo https://github.com/NLincoln/u-cc-v2
[INFO] finished tweaking git repo https://github.com/NLincoln/u-cc-v2
[INFO] tweaked toml for git repo https://github.com/NLincoln/u-cc-v2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/NLincoln/u-cc-v2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded string_cache_codegen v0.4.2
[INFO] [stderr]   Downloaded string_cache_shared v0.3.0
[INFO] [stderr]   Downloaded opaque-debug v0.2.2
[INFO] [stderr]   Downloaded term v0.4.6
[INFO] [stderr]   Downloaded ascii-canvas v1.0.0
[INFO] [stderr]   Downloaded ena v0.11.0
[INFO] [stderr]   Downloaded serde v1.0.91
[INFO] [stderr]   Downloaded itertools v0.8.0
[INFO] [stderr]   Downloaded serde_derive v1.0.91
[INFO] [stderr]   Downloaded typenum v1.10.0
[INFO] [stderr]   Downloaded generic-array v0.12.0
[INFO] [stderr]   Downloaded digest v0.8.0
[INFO] [stderr]   Downloaded sha2 v0.8.0
[INFO] [stderr]   Downloaded autocfg v0.1.2
[INFO] [stderr]   Downloaded string_cache v0.7.3
[INFO] [stderr]   Downloaded lalrpop-util v0.16.3
[INFO] [stderr]   Downloaded lalrpop v0.16.3
[INFO] [stderr]   Downloaded diff v0.1.11
[INFO] [stderr]   Downloaded strsim v0.9.2
[INFO] [stderr]   Downloaded libc v0.2.54
[INFO] [stderr]   Downloaded block-padding v0.1.4
[INFO] [stderr]   Downloaded new_debug_unreachable v1.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf1c46a14d3b0695c60ae9835e8a1c09dce91363e9d80b90c97c2091bd76f6be
[INFO] running `Command { std: "docker" "start" "-a" "cf1c46a14d3b0695c60ae9835e8a1c09dce91363e9d80b90c97c2091bd76f6be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf1c46a14d3b0695c60ae9835e8a1c09dce91363e9d80b90c97c2091bd76f6be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf1c46a14d3b0695c60ae9835e8a1c09dce91363e9d80b90c97c2091bd76f6be", kill_on_drop: false }`
[INFO] [stdout] cf1c46a14d3b0695c60ae9835e8a1c09dce91363e9d80b90c97c2091bd76f6be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b1169326a6c72f54d44444c54540179e4d807f574c83a92830e71c9d068e949
[INFO] running `Command { std: "docker" "start" "-a" "7b1169326a6c72f54d44444c54540179e4d807f574c83a92830e71c9d068e949", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling libc v0.2.54
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling serde v1.0.91
[INFO] [stderr]    Compiling regex v1.1.6
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling cfg-if v0.1.7
[INFO] [stderr]    Compiling block-padding v0.1.4
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling regex-syntax v0.6.6
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.3
[INFO] [stderr]    Compiling strsim v0.9.2
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling bit-vec v0.5.1
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling opaque-debug v0.2.2
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling ena v0.11.0
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling lalrpop-util v0.16.3
[INFO] [stderr]    Compiling diff v0.1.11
[INFO] [stderr]    Compiling bit-set v0.5.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling ascii-canvas v1.0.0
[INFO] [stderr]    Compiling aho-corasick v0.7.3
[INFO] [stderr]    Compiling generic-array v0.12.0
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling digest v0.8.0
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling serde_derive v1.0.91
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling lalrpop v0.16.3
[INFO] [stderr]    Compiling lang v0.1.0 (/opt/rustwide/workdir/lang)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:6314:5
[INFO] [stdout]      |
[INFO] [stdout] 6314 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 6314 -     (__0)
[INFO] [stdout] 6314 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:6636:5
[INFO] [stdout]      |
[INFO] [stdout] 6636 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 6636 -     (__0)
[INFO] [stdout] 6636 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:6647:5
[INFO] [stdout]      |
[INFO] [stdout] 6647 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 6647 -     (__0)
[INFO] [stdout] 6647 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:6792:5
[INFO] [stdout]      |
[INFO] [stdout] 6792 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 6792 -     (__0)
[INFO] [stdout] 6792 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:6818:5
[INFO] [stdout]      |
[INFO] [stdout] 6818 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 6818 -     (__0)
[INFO] [stdout] 6818 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:6842:5
[INFO] [stdout]      |
[INFO] [stdout] 6842 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 6842 -     (__0)
[INFO] [stdout] 6842 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:6866:5
[INFO] [stdout]      |
[INFO] [stdout] 6866 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 6866 -     (__0)
[INFO] [stdout] 6866 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:6890:5
[INFO] [stdout]      |
[INFO] [stdout] 6890 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 6890 -     (__0)
[INFO] [stdout] 6890 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:6914:5
[INFO] [stdout]      |
[INFO] [stdout] 6914 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 6914 -     (__0)
[INFO] [stdout] 6914 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:6938:5
[INFO] [stdout]      |
[INFO] [stdout] 6938 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 6938 -     (__0)
[INFO] [stdout] 6938 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:6975:5
[INFO] [stdout]      |
[INFO] [stdout] 6975 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 6975 -     (__0)
[INFO] [stdout] 6975 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:7038:5
[INFO] [stdout]      |
[INFO] [stdout] 7038 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 7038 -     (__0)
[INFO] [stdout] 7038 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:7075:5
[INFO] [stdout]      |
[INFO] [stdout] 7075 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 7075 -     (__0)
[INFO] [stdout] 7075 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:7112:5
[INFO] [stdout]      |
[INFO] [stdout] 7112 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 7112 -     (__0)
[INFO] [stdout] 7112 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:7162:5
[INFO] [stdout]      |
[INFO] [stdout] 7162 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 7162 -     (__0)
[INFO] [stdout] 7162 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:7187:5
[INFO] [stdout]      |
[INFO] [stdout] 7187 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 7187 -     (__0)
[INFO] [stdout] 7187 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:7308:5
[INFO] [stdout]      |
[INFO] [stdout] 7308 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 7308 -     (__0)
[INFO] [stdout] 7308 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:7429:5
[INFO] [stdout]      |
[INFO] [stdout] 7429 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 7429 -     (__0)
[INFO] [stdout] 7429 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:7668:5
[INFO] [stdout]      |
[INFO] [stdout] 7668 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 7668 -     (__0)
[INFO] [stdout] 7668 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:7726:5
[INFO] [stdout]      |
[INFO] [stdout] 7726 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 7726 -     (__0)
[INFO] [stdout] 7726 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:7830:5
[INFO] [stdout]      |
[INFO] [stdout] 7830 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 7830 -     (__0)
[INFO] [stdout] 7830 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:6314:5
[INFO] [stdout]      |
[INFO] [stdout] 6314 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 6314 -     (__0)
[INFO] [stdout] 6314 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:6636:5
[INFO] [stdout]      |
[INFO] [stdout] 6636 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 6636 -     (__0)
[INFO] [stdout] 6636 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:6647:5
[INFO] [stdout]      |
[INFO] [stdout] 6647 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 6647 -     (__0)
[INFO] [stdout] 6647 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:6792:5
[INFO] [stdout]      |
[INFO] [stdout] 6792 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 6792 -     (__0)
[INFO] [stdout] 6792 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:6818:5
[INFO] [stdout]      |
[INFO] [stdout] 6818 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 6818 -     (__0)
[INFO] [stdout] 6818 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:6842:5
[INFO] [stdout]      |
[INFO] [stdout] 6842 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 6842 -     (__0)
[INFO] [stdout] 6842 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:6866:5
[INFO] [stdout]      |
[INFO] [stdout] 6866 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 6866 -     (__0)
[INFO] [stdout] 6866 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:6890:5
[INFO] [stdout]      |
[INFO] [stdout] 6890 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 6890 -     (__0)
[INFO] [stdout] 6890 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:6914:5
[INFO] [stdout]      |
[INFO] [stdout] 6914 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 6914 -     (__0)
[INFO] [stdout] 6914 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:6938:5
[INFO] [stdout]      |
[INFO] [stdout] 6938 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 6938 -     (__0)
[INFO] [stdout] 6938 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:6975:5
[INFO] [stdout]      |
[INFO] [stdout] 6975 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 6975 -     (__0)
[INFO] [stdout] 6975 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:7038:5
[INFO] [stdout]      |
[INFO] [stdout] 7038 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 7038 -     (__0)
[INFO] [stdout] 7038 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:7075:5
[INFO] [stdout]      |
[INFO] [stdout] 7075 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 7075 -     (__0)
[INFO] [stdout] 7075 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:7112:5
[INFO] [stdout]      |
[INFO] [stdout] 7112 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 7112 -     (__0)
[INFO] [stdout] 7112 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:7162:5
[INFO] [stdout]      |
[INFO] [stdout] 7162 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 7162 -     (__0)
[INFO] [stdout] 7162 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:7187:5
[INFO] [stdout]      |
[INFO] [stdout] 7187 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 7187 -     (__0)
[INFO] [stdout] 7187 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:7308:5
[INFO] [stdout]      |
[INFO] [stdout] 7308 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 7308 -     (__0)
[INFO] [stdout] 7308 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:7429:5
[INFO] [stdout]      |
[INFO] [stdout] 7429 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 7429 -     (__0)
[INFO] [stdout] 7429 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:7668:5
[INFO] [stdout]      |
[INFO] [stdout] 7668 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 7668 -     (__0)
[INFO] [stdout] 7668 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:7726:5
[INFO] [stdout]      |
[INFO] [stdout] 7726 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 7726 -     (__0)
[INFO] [stdout] 7726 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:7830:5
[INFO] [stdout]      |
[INFO] [stdout] 7830 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 7830 -     (__0)
[INFO] [stdout] 7830 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `program`
[INFO] [stdout]    --> lang/src/walker.rs:184:33
[INFO] [stdout]     |
[INFO] [stdout] 184 |     fn visit_program(&mut self, program: &Program) -> Result<(), Self::AstError> {
[INFO] [stdout]     |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_program`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `func`
[INFO] [stdout]    --> lang/src/walker.rs:195:9
[INFO] [stdout]     |
[INFO] [stdout] 195 |         func: &FunctionDeclaration,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_func`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stmt`
[INFO] [stdout]    --> lang/src/walker.rs:213:35
[INFO] [stdout]     |
[INFO] [stdout] 213 |     fn visit_statement(&mut self, stmt: &Statement) -> Result<(), Self::AstError> {
[INFO] [stdout]     |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_stmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> lang/src/walker.rs:217:42
[INFO] [stdout]     |
[INFO] [stdout] 217 |     fn visit_return_statement(&mut self, expr: Self::Node) -> Result<(), Self::AstError> {
[INFO] [stdout]     |                                          ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `decl`
[INFO] [stdout]    --> lang/src/walker.rs:234:9
[INFO] [stdout]     |
[INFO] [stdout] 234 |         decl: &VariableDeclaration,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_decl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cond`
[INFO] [stdout]    --> lang/src/walker.rs:241:9
[INFO] [stdout]     |
[INFO] [stdout] 241 |         cond: Self::Node,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cond`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `program`
[INFO] [stdout]    --> lang/src/walker.rs:184:33
[INFO] [stdout]     |
[INFO] [stdout] 184 |     fn visit_program(&mut self, program: &Program) -> Result<(), Self::AstError> {
[INFO] [stdout]     |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_program`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `func`
[INFO] [stdout]    --> lang/src/walker.rs:195:9
[INFO] [stdout]     |
[INFO] [stdout] 195 |         func: &FunctionDeclaration,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_func`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stmt`
[INFO] [stdout]    --> lang/src/walker.rs:213:35
[INFO] [stdout]     |
[INFO] [stdout] 213 |     fn visit_statement(&mut self, stmt: &Statement) -> Result<(), Self::AstError> {
[INFO] [stdout]     |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_stmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> lang/src/walker.rs:217:42
[INFO] [stdout]     |
[INFO] [stdout] 217 |     fn visit_return_statement(&mut self, expr: Self::Node) -> Result<(), Self::AstError> {
[INFO] [stdout]     |                                          ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `decl`
[INFO] [stdout]    --> lang/src/walker.rs:234:9
[INFO] [stdout]     |
[INFO] [stdout] 234 |         decl: &VariableDeclaration,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_decl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cond`
[INFO] [stdout]    --> lang/src/walker.rs:241:9
[INFO] [stdout]     |
[INFO] [stdout] 241 |         cond: Self::Node,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cond`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_numeric` is never used
[INFO] [stdout]    --> lang/src/ast.rs:116:8
[INFO] [stdout]     |
[INFO] [stdout] 115 | impl Type {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] 116 |     fn is_numeric(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `to_triple` is never used
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:8508:8
[INFO] [stdout]      |
[INFO] [stdout] 8507 | pub trait __ToTriple<'input, > {
[INFO] [stdout]      |           ---------- associated function in this trait
[INFO] [stdout] 8508 |     fn to_triple(value: Self) -> Result<(usize,Token<'input>,usize), __lalrpop_util::ParseError<usize, Token<'input>, &'static str>>;
[INFO] [stdout]      |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> lang/src/ast.rs:135:17
[INFO] [stdout]     |
[INFO] [stdout] 135 |                 write!(f, "(");
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 30 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_numeric` is never used
[INFO] [stdout]    --> lang/src/ast.rs:116:8
[INFO] [stdout]     |
[INFO] [stdout] 115 | impl Type {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] 116 |     fn is_numeric(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking codegen v0.1.0 (/opt/rustwide/workdir/codegen)
[INFO] [stderr]     Checking typechk v0.1.0 (/opt/rustwide/workdir/typechk)
[INFO] [stdout] warning: associated function `to_triple` is never used
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/lang-2c0173645cceda0d/out/c.rs:8508:8
[INFO] [stdout]      |
[INFO] [stdout] 8507 | pub trait __ToTriple<'input, > {
[INFO] [stdout]      |           ---------- associated function in this trait
[INFO] [stdout] 8508 |     fn to_triple(value: Self) -> Result<(usize,Token<'input>,usize), __lalrpop_util::ParseError<usize, Token<'input>, &'static str>>;
[INFO] [stdout]      |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> lang/src/ast.rs:135:17
[INFO] [stdout]     |
[INFO] [stdout] 135 |                 write!(f, "(");
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 30 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> typechk/src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> typechk/src/lib.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |         other => false,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num`
[INFO] [stdout]   --> typechk/src/lib.rs:57:32
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn visit_number(&mut self, num: i32) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `literal`
[INFO] [stdout]   --> typechk/src/lib.rs:61:40
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn visit_string_literal(&mut self, literal: &str) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]    |                                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]   --> typechk/src/lib.rs:90:25
[INFO] [stdout]    |
[INFO] [stdout] 90 |             Type::Array(len, inner) => Ok(*inner),
[INFO] [stdout]    |                         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]   --> typechk/src/lib.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |         lhs: Self::Node,
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ident`
[INFO] [stdout]   --> typechk/src/lib.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |         ident: &str,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_ident`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> typechk/src/lib.rs:104:41
[INFO] [stdout]     |
[INFO] [stdout] 104 |     fn visit_cast(&mut self, ty: &Type, expr: Self::Node) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]     |                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> typechk/src/lib.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         op: &AssignmentOp,
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cond`
[INFO] [stdout]    --> typechk/src/lib.rs:133:9
[INFO] [stdout]     |
[INFO] [stdout] 133 |         cond: Self::Node,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cond`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> typechk/src/lib.rs:161:13
[INFO] [stdout]     |
[INFO] [stdout] 161 |             other => return Err(format!("Cannot call {} as a function", name)),
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> typechk/src/lib.rs:187:9
[INFO] [stdout]     |
[INFO] [stdout] 187 |         expr: Self::Node,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ident`
[INFO] [stdout]    --> typechk/src/lib.rs:188:9
[INFO] [stdout]     |
[INFO] [stdout] 188 |         ident: &str,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_ident`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> typechk/src/lib.rs:193:37
[INFO] [stdout]     |
[INFO] [stdout] 193 |     fn visit_sizeof_expr(&mut self, expr: Self::Node) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]     |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> typechk/src/lib.rs:197:37
[INFO] [stdout]     |
[INFO] [stdout] 197 |     fn visit_sizeof_type(&mut self, ty: &Type) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]     |                                     ^^ help: if this is intentional, prefix it with an underscore: `_ty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> typechk/src/lib.rs:219:9
[INFO] [stdout]     |
[INFO] [stdout] 219 |         op: &BinaryOp,
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> typechk/src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::fmt::Pointer`
[INFO] [stdout]  --> codegen/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::fmt::Pointer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]    --> codegen/src/lib.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 172 |         lhs: Self::Node,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ident`
[INFO] [stdout]    --> codegen/src/lib.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 173 |         ident: &str,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_ident`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::fmt::Pointer`
[INFO] [stdout]  --> codegen/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::fmt::Pointer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> codegen/src/lib.rs:178:30
[INFO] [stdout]     |
[INFO] [stdout] 178 |     fn visit_cast(&mut self, ty: &Type, expr: Self::Node) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]     |                              ^^ help: if this is intentional, prefix it with an underscore: `_ty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> codegen/src/lib.rs:178:41
[INFO] [stdout]     |
[INFO] [stdout] 178 |     fn visit_cast(&mut self, ty: &Type, expr: Self::Node) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]     |                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> typechk/src/lib.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |         other => false,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num`
[INFO] [stdout]   --> typechk/src/lib.rs:57:32
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn visit_number(&mut self, num: i32) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `literal`
[INFO] [stdout]   --> typechk/src/lib.rs:61:40
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn visit_string_literal(&mut self, literal: &str) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]    |                                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]   --> typechk/src/lib.rs:90:25
[INFO] [stdout]    |
[INFO] [stdout] 90 |             Type::Array(len, inner) => Ok(*inner),
[INFO] [stdout]    |                         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]   --> typechk/src/lib.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |         lhs: Self::Node,
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ident`
[INFO] [stdout]   --> typechk/src/lib.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |         ident: &str,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_ident`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cond`
[INFO] [stdout]    --> codegen/src/lib.rs:210:9
[INFO] [stdout]     |
[INFO] [stdout] 210 |         cond: Self::Node,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cond`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `truthy`
[INFO] [stdout]    --> codegen/src/lib.rs:211:9
[INFO] [stdout]     |
[INFO] [stdout] 211 |         truthy: Self::Node,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_truthy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `falsy`
[INFO] [stdout]    --> codegen/src/lib.rs:212:9
[INFO] [stdout]     |
[INFO] [stdout] 212 |         falsy: Self::Node,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_falsy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> codegen/src/lib.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |         expr: Self::Node,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ident`
[INFO] [stdout]    --> codegen/src/lib.rs:234:9
[INFO] [stdout]     |
[INFO] [stdout] 234 |         ident: &str,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_ident`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> codegen/src/lib.rs:239:37
[INFO] [stdout]     |
[INFO] [stdout] 239 |     fn visit_sizeof_expr(&mut self, expr: Self::Node) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]     |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> codegen/src/lib.rs:243:37
[INFO] [stdout]     |
[INFO] [stdout] 243 |     fn visit_sizeof_type(&mut self, ty: &Type) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]     |                                     ^^ help: if this is intentional, prefix it with an underscore: `_ty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> typechk/src/lib.rs:104:41
[INFO] [stdout]     |
[INFO] [stdout] 104 |     fn visit_cast(&mut self, ty: &Type, expr: Self::Node) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]     |                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> codegen/src/lib.rs:247:29
[INFO] [stdout]     |
[INFO] [stdout] 247 |     fn visit_not(&mut self, expr: Self::Node) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> codegen/src/lib.rs:251:30
[INFO] [stdout]     |
[INFO] [stdout] 251 |     fn visit_plus(&mut self, expr: Self::Node) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> codegen/src/lib.rs:255:34
[INFO] [stdout]     |
[INFO] [stdout] 255 |     fn visit_negation(&mut self, expr: Self::Node) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> typechk/src/lib.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         op: &AssignmentOp,
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cond`
[INFO] [stdout]    --> typechk/src/lib.rs:133:9
[INFO] [stdout]     |
[INFO] [stdout] 133 |         cond: Self::Node,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cond`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> codegen/src/lib.rs:300:42
[INFO] [stdout]     |
[INFO] [stdout] 300 |     fn visit_prefix_increment(&mut self, expr: Self::Node) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]     |                                          ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> typechk/src/lib.rs:161:13
[INFO] [stdout]     |
[INFO] [stdout] 161 |             other => return Err(format!("Cannot call {} as a function", name)),
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> codegen/src/lib.rs:304:42
[INFO] [stdout]     |
[INFO] [stdout] 304 |     fn visit_prefix_decrement(&mut self, expr: Self::Node) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]     |                                          ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> typechk/src/lib.rs:187:9
[INFO] [stdout]     |
[INFO] [stdout] 187 |         expr: Self::Node,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ident`
[INFO] [stdout]    --> typechk/src/lib.rs:188:9
[INFO] [stdout]     |
[INFO] [stdout] 188 |         ident: &str,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_ident`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> typechk/src/lib.rs:193:37
[INFO] [stdout]     |
[INFO] [stdout] 193 |     fn visit_sizeof_expr(&mut self, expr: Self::Node) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]     |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> typechk/src/lib.rs:197:37
[INFO] [stdout]     |
[INFO] [stdout] 197 |     fn visit_sizeof_type(&mut self, ty: &Type) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]     |                                     ^^ help: if this is intentional, prefix it with an underscore: `_ty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> typechk/src/lib.rs:219:9
[INFO] [stdout]     |
[INFO] [stdout] 219 |         op: &BinaryOp,
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]    --> codegen/src/lib.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 172 |         lhs: Self::Node,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ident`
[INFO] [stdout]    --> codegen/src/lib.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 173 |         ident: &str,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_ident`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> codegen/src/lib.rs:178:30
[INFO] [stdout]     |
[INFO] [stdout] 178 |     fn visit_cast(&mut self, ty: &Type, expr: Self::Node) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]     |                              ^^ help: if this is intentional, prefix it with an underscore: `_ty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> codegen/src/lib.rs:178:41
[INFO] [stdout]     |
[INFO] [stdout] 178 |     fn visit_cast(&mut self, ty: &Type, expr: Self::Node) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]     |                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cond`
[INFO] [stdout]    --> codegen/src/lib.rs:210:9
[INFO] [stdout]     |
[INFO] [stdout] 210 |         cond: Self::Node,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cond`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `truthy`
[INFO] [stdout]    --> codegen/src/lib.rs:211:9
[INFO] [stdout]     |
[INFO] [stdout] 211 |         truthy: Self::Node,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_truthy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `falsy`
[INFO] [stdout]    --> codegen/src/lib.rs:212:9
[INFO] [stdout]     |
[INFO] [stdout] 212 |         falsy: Self::Node,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_falsy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> codegen/src/lib.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |         expr: Self::Node,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ident`
[INFO] [stdout]    --> codegen/src/lib.rs:234:9
[INFO] [stdout]     |
[INFO] [stdout] 234 |         ident: &str,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_ident`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> codegen/src/lib.rs:239:37
[INFO] [stdout]     |
[INFO] [stdout] 239 |     fn visit_sizeof_expr(&mut self, expr: Self::Node) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]     |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> codegen/src/lib.rs:243:37
[INFO] [stdout]     |
[INFO] [stdout] 243 |     fn visit_sizeof_type(&mut self, ty: &Type) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]     |                                     ^^ help: if this is intentional, prefix it with an underscore: `_ty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> codegen/src/lib.rs:247:29
[INFO] [stdout]     |
[INFO] [stdout] 247 |     fn visit_not(&mut self, expr: Self::Node) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> codegen/src/lib.rs:251:30
[INFO] [stdout]     |
[INFO] [stdout] 251 |     fn visit_plus(&mut self, expr: Self::Node) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> codegen/src/lib.rs:255:34
[INFO] [stdout]     |
[INFO] [stdout] 255 |     fn visit_negation(&mut self, expr: Self::Node) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking cc v0.1.0 (/opt/rustwide/workdir/cc)
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> codegen/src/lib.rs:300:42
[INFO] [stdout]     |
[INFO] [stdout] 300 |     fn visit_prefix_increment(&mut self, expr: Self::Node) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]     |                                          ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> codegen/src/lib.rs:304:42
[INFO] [stdout]     |
[INFO] [stdout] 304 |     fn visit_prefix_decrement(&mut self, expr: Self::Node) -> Result<Self::Node, Self::Error> {
[INFO] [stdout]     |                                          ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.68s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: lalrpop v0.16.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "7b1169326a6c72f54d44444c54540179e4d807f574c83a92830e71c9d068e949", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b1169326a6c72f54d44444c54540179e4d807f574c83a92830e71c9d068e949", kill_on_drop: false }`
[INFO] [stdout] 7b1169326a6c72f54d44444c54540179e4d807f574c83a92830e71c9d068e949