[INFO] fetching crate pit-patch 0.4.0...
[INFO] building pit-patch-0.4.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate pit-patch 0.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate pit-patch 0.4.0
[INFO] finished tweaking crates.io crate pit-patch 0.4.0
[INFO] tweaked toml for crates.io crate pit-patch 0.4.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate pit-patch 0.4.0 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate pit-patch 0.4.0 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc-std-workspace-alloc v1.0.1
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ea43252ffaed0fffa9a3959c53e6c93b677351c28a03a68dc4baa61f94ad555
[INFO] running `Command { std: "docker" "start" "-a" "2ea43252ffaed0fffa9a3959c53e6c93b677351c28a03a68dc4baa61f94ad555", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ea43252ffaed0fffa9a3959c53e6c93b677351c28a03a68dc4baa61f94ad555", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ea43252ffaed0fffa9a3959c53e6c93b677351c28a03a68dc4baa61f94ad555", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36c8b7f88a0275e8c30f6e10cdfd787503573eef99912f0458d84115f4af1c25
[INFO] running `Command { std: "docker" "start" "-a" "36c8b7f88a0275e8c30f6e10cdfd787503573eef99912f0458d84115f4af1c25", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling serde v1.0.206
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[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling wasm-encoder v0.227.1
[INFO] [stderr]    Compiling wasmparser v0.227.1
[INFO] [stderr]    Compiling anyhow v1.0.93
[INFO] [stderr]    Compiling keccak v0.1.5
[INFO] [stderr]    Compiling never-say-never v6.6.666
[INFO] [stderr]    Compiling polonius-the-crab v0.2.1
[INFO] [stderr]    Compiling rustc-std-workspace-alloc v1.0.1
[INFO] [stderr]    Compiling leb128fmt v0.1.0
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[INFO] [stderr]    Compiling ext-trait-proc_macros v1.0.1
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[INFO] [stderr]    Compiling lending-iterator-proc_macros v0.1.7
[INFO] [stderr]    Compiling ext-trait v1.0.1
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[INFO] [stderr]    Compiling lending-iterator v0.1.7
[INFO] [stderr]    Compiling serde_derive v1.0.206
[INFO] [stderr]    Compiling derive_more-impl v2.0.1
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[INFO] [stderr]    Compiling derive_more v2.0.1
[INFO] [stderr]    Compiling pit-core v0.4.2
[INFO] [stderr]    Compiling either v1.13.0
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[INFO] [stderr]    Compiling portal-pc-waffle v0.5.4
[INFO] [stderr]    Compiling pit-patch v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BTreeMap` and `BTreeSet`
[INFO] [stdout]  --> src/lib.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 |     collections::{BTreeMap, BTreeSet}, vec::Vec,
[INFO] [stdout]   |                   ^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arg` and `Sig`
[INFO] [stdout]  --> src/lib.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 | use pit_core::{Arg, Interface, Sig};
[INFO] [stdout]   |                ^^^             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ExportKind`, `FuncDecl`, `FunctionBody`, `ImportKind`, `SignatureData`, `TableData`, `Type`, and `util::new_sig`
[INFO] [stdout]   --> src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     util::new_sig, ExportKind, FuncDecl, FunctionBody, ImportKind, Module, SignatureData,
[INFO] [stdout]    |     ^^^^^^^^^^^^^  ^^^^^^^^^^  ^^^^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^^          ^^^^^^^^^^^^^
[INFO] [stdout] 13 |     TableData, Type,
[INFO] [stdout]    |     ^^^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::util::add_op`
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use crate::util::add_op;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BTreeSet`
[INFO] [stdout]  --> src/util.rs:1:36
[INFO] [stdout]   |
[INFO] [stdout] 1 | use alloc::collections::{BTreeMap, BTreeSet};
[INFO] [stdout]   |                                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `replace` and `take`
[INFO] [stdout]  --> src/util.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use core::mem::{replace, take};
[INFO] [stdout]   |                 ^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `anyhow::Context`
[INFO] [stdout]  --> src/util.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use anyhow::Context;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ResTy`
[INFO] [stdout]   --> src/util.rs:10:21
[INFO] [stdout]    |
[INFO] [stdout] 10 | use pit_core::{Arg, ResTy};
[INFO] [stdout]    |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BlockTarget`, `Block`, `TableData`, and `Table`
[INFO] [stdout]   --> src/util.rs:12:20
[INFO] [stdout]    |
[INFO] [stdout] 12 |     util::new_sig, Block, BlockTarget, Export, ExportKind, Func, FuncDecl, FunctionBody, Import,
[INFO] [stdout]    |                    ^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 13 |     ImportKind, Module, Operator, SignatureData, Table, TableData, Type, Value, WithNullable,
[INFO] [stdout]    |                                                  ^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::get_interfaces`
[INFO] [stdout]   --> src/util.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use crate::get_interfaces;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BTreeSet`
[INFO] [stdout]  --> src/canon.rs:2:36
[INFO] [stdout]   |
[INFO] [stdout] 2 | use alloc::collections::{BTreeMap, BTreeSet};
[INFO] [stdout]   |                                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `alloc::string::String`
[INFO] [stdout]  --> src/canon.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use alloc::string::String;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `replace`
[INFO] [stdout]  --> src/canon.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use core::mem::{replace, take};
[INFO] [stdout]   |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `portal_pc_waffle::util::results_ref_2`
[INFO] [stdout]  --> src/canon.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use portal_pc_waffle::util::results_ref_2;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pit_core::Interface`
[INFO] [stdout]   --> src/canon.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use pit_core::Interface;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BTreeMap`
[INFO] [stdout]  --> src/lower.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use alloc::collections::{BTreeMap, BTreeSet};
[INFO] [stdout]   |                          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `replace`
[INFO] [stdout]  --> src/lower.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use core::mem::{replace, take};
[INFO] [stdout]   |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]   --> src/util.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |             ty,
[INFO] [stdout]    |             ^^ help: try ignoring the field: `ty: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nullable`
[INFO] [stdout]   --> src/util.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |             nullable,
[INFO] [stdout]    |             ^^^^^^^^ help: try ignoring the field: `nullable: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `take`
[INFO] [stdout]   --> src/util.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |             take,
[INFO] [stdout]    |             ^^^^ help: try ignoring the field: `take: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ann`
[INFO] [stdout]   --> src/util.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |             ann,
[INFO] [stdout]    |             ^^^ help: try ignoring the field: `ann: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `module`
[INFO] [stdout]   --> src/util.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     module: &mut Module,
[INFO] [stdout]    |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_module`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> src/util.rs:216:25
[INFO] [stdout]     |
[INFO] [stdout] 216 |                         ty,
[INFO] [stdout]     |                         ^^ help: try ignoring the field: `ty: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nullable`
[INFO] [stdout]    --> src/util.rs:217:25
[INFO] [stdout]     |
[INFO] [stdout] 217 |                         nullable,
[INFO] [stdout]     |                         ^^^^^^^^ help: try ignoring the field: `nullable: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `take`
[INFO] [stdout]    --> src/util.rs:218:25
[INFO] [stdout]     |
[INFO] [stdout] 218 |                         take,
[INFO] [stdout]     |                         ^^^^ help: try ignoring the field: `take: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ann`
[INFO] [stdout]    --> src/util.rs:219:25
[INFO] [stdout]     |
[INFO] [stdout] 219 |                         ann,
[INFO] [stdout]     |                         ^^^ help: try ignoring the field: `ann: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tx`
[INFO] [stdout]   --> src/canon.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let tx = m.tables.push(TableData {
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_tx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tts`
[INFO] [stdout]    --> src/canon.rs:125:41
[INFO] [stdout]     |
[INFO] [stdout] 125 |                         let (ta, _, ts, tts) =
[INFO] [stdout]     |                                         ^^^ help: if this is intentional, prefix it with an underscore: `_tts`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `returns`
[INFO] [stdout]    --> src/canon.rs:256:21
[INFO] [stdout]     |
[INFO] [stdout] 256 |             params, returns, ..
[INFO] [stdout]     |                     ^^^^^^^-
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: try removing the field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/canon.rs:348:29
[INFO] [stdout]     |
[INFO] [stdout] 348 |                         let c = b.add_op(k, Operator::Call { function_index: tf }, &[a], &t);
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/canon.rs:229:21
[INFO] [stdout]     |
[INFO] [stdout] 229 |                 let mut b = b.entry(a.to_owned()).or_insert_with(|| BTreeMap::new());
[INFO] [stdout]     |                     ----^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nullable`
[INFO] [stdout]   --> src/lower.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         nullable,
[INFO] [stdout]    |         ^^^^^^^^ help: try ignoring the field: `nullable: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nullable`
[INFO] [stdout]    --> src/lower.rs:219:17
[INFO] [stdout]     |
[INFO] [stdout] 219 |                 nullable
[INFO] [stdout]     |                 ^^^^^^^^ help: try ignoring the field: `nullable: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tys`
[INFO] [stdout]    --> src/lower.rs:256:25
[INFO] [stdout]     |
[INFO] [stdout] 256 |                     let tys = b.blocks[k].params.iter().map(|a| a.0).collect::<Vec<_>>();
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_tys`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ridx`
[INFO] [stdout]    --> src/lower.rs:320:33
[INFO] [stdout]     |
[INFO] [stdout] 320 | ...                   let ridx = b.add_op(
[INFO] [stdout]     |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_ridx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lower.rs:170:13
[INFO] [stdout]     |
[INFO] [stdout] 170 |         let x = b.type_pool.from_iter(once(Type::I32));
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nullable`
[INFO] [stdout]    --> src/lower.rs:187:33
[INFO] [stdout]     |
[INFO] [stdout] 187 | ...                   nullable
[INFO] [stdout]     |                       ^^^^^^^^ help: try ignoring the field: `nullable: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nullable`
[INFO] [stdout]    --> src/lower.rs:198:33
[INFO] [stdout]     |
[INFO] [stdout] 198 | ...                   nullable
[INFO] [stdout]     |                       ^^^^^^^^ help: try ignoring the field: `nullable: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]    --> src/lower.rs:169:31
[INFO] [stdout]     |
[INFO] [stdout] 169 |     m.try_take_per_func_body(|m, b| {
[INFO] [stdout]     |                               ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]   --> src/tpit.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         ty,
[INFO] [stdout]    |         ^^ help: try ignoring the field: `ty: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nullable`
[INFO] [stdout]   --> src/tpit.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         nullable,
[INFO] [stdout]    |         ^^^^^^^^ help: try ignoring the field: `nullable: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ann`
[INFO] [stdout]   --> src/tpit.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         ann,
[INFO] [stdout]    |         ^^^ help: try ignoring the field: `ann: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `returns`
[INFO] [stdout]    --> src/tpit.rs:308:54
[INFO] [stdout]     |
[INFO] [stdout] 308 |                 if let SignatureData::Func { params, returns,.. } =
[INFO] [stdout]     |                                                      ^^^^^^^-
[INFO] [stdout]     |                                                      |
[INFO] [stdout]     |                                                      help: try removing the field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `returns`
[INFO] [stdout]    --> src/tpit.rs:359:54
[INFO] [stdout]     |
[INFO] [stdout] 359 |                 if let SignatureData::Func { params, returns,.. } =
[INFO] [stdout]     |                                                      ^^^^^^^-
[INFO] [stdout]     |                                                      |
[INFO] [stdout]     |                                                      help: try removing the field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/tpit.rs:407:13
[INFO] [stdout]     |
[INFO] [stdout] 407 |         let f = waffle_funcs(m, &i, false);
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `returns`
[INFO] [stdout]    --> src/tpit.rs:414:66
[INFO] [stdout]     |
[INFO] [stdout] 414 | ...                   if let SignatureData::Func { params, returns,.. } =
[INFO] [stdout]     |                                                            ^^^^^^^-
[INFO] [stdout]     |                                                            |
[INFO] [stdout]     |                                                            help: try removing the field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/tpit.rs:569:33
[INFO] [stdout]     |
[INFO] [stdout] 569 | ...                   let p = new_sig(
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/tpit.rs:632:29
[INFO] [stdout]     |
[INFO] [stdout] 632 |                         let p = new_sig(
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/tutils.rs:142:10
[INFO] [stdout]     |
[INFO] [stdout] 142 |     let (s, mut o) = e.build(m, &mut f, q)?;
[INFO] [stdout]     |          ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/tutils.rs:200:10
[INFO] [stdout]     |
[INFO] [stdout] 200 |     let (s, mut o) = e.build(m, &mut f, r)?;
[INFO] [stdout]     |          ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/lib.rs:30:14
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let (s, i) = pit_core::parse_interface(s)
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/lib.rs:31:23
[INFO] [stdout]    |
[INFO] [stdout] 31 |             .map_err(|e: nom::Err<nom::error::Error<&str>>| anyhow::anyhow!("invalid pit"))?;
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 34.52s
[INFO] running `Command { std: "docker" "inspect" "36c8b7f88a0275e8c30f6e10cdfd787503573eef99912f0458d84115f4af1c25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36c8b7f88a0275e8c30f6e10cdfd787503573eef99912f0458d84115f4af1c25", kill_on_drop: false }`
[INFO] [stdout] 36c8b7f88a0275e8c30f6e10cdfd787503573eef99912f0458d84115f4af1c25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56c9ee7876cd03c89673c520599510cf4395e1c87753bb2babefca910ff29df3
[INFO] running `Command { std: "docker" "start" "-a" "56c9ee7876cd03c89673c520599510cf4395e1c87753bb2babefca910ff29df3", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `BTreeMap` and `BTreeSet`
[INFO] [stdout]  --> src/lib.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 |     collections::{BTreeMap, BTreeSet}, vec::Vec,
[INFO] [stdout]   |                   ^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arg` and `Sig`
[INFO] [stdout]  --> src/lib.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 | use pit_core::{Arg, Interface, Sig};
[INFO] [stdout]   |                ^^^             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ExportKind`, `FuncDecl`, `FunctionBody`, `ImportKind`, `SignatureData`, `TableData`, `Type`, and `util::new_sig`
[INFO] [stdout]   --> src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     util::new_sig, ExportKind, FuncDecl, FunctionBody, ImportKind, Module, SignatureData,
[INFO] [stdout]    |     ^^^^^^^^^^^^^  ^^^^^^^^^^  ^^^^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^^          ^^^^^^^^^^^^^
[INFO] [stdout] 13 |     TableData, Type,
[INFO] [stdout]    |     ^^^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::util::add_op`
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use crate::util::add_op;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BTreeSet`
[INFO] [stdout]  --> src/util.rs:1:36
[INFO] [stdout]   |
[INFO] [stdout] 1 | use alloc::collections::{BTreeMap, BTreeSet};
[INFO] [stdout]   |                                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `replace` and `take`
[INFO] [stdout]  --> src/util.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use core::mem::{replace, take};
[INFO] [stdout]   |                 ^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `anyhow::Context`
[INFO] [stdout]  --> src/util.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use anyhow::Context;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ResTy`
[INFO] [stdout]   --> src/util.rs:10:21
[INFO] [stdout]    |
[INFO] [stdout] 10 | use pit_core::{Arg, ResTy};
[INFO] [stdout]    |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BlockTarget`, `Block`, `TableData`, and `Table`
[INFO] [stdout]   --> src/util.rs:12:20
[INFO] [stdout]    |
[INFO] [stdout] 12 |     util::new_sig, Block, BlockTarget, Export, ExportKind, Func, FuncDecl, FunctionBody, Import,
[INFO] [stdout]    |                    ^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 13 |     ImportKind, Module, Operator, SignatureData, Table, TableData, Type, Value, WithNullable,
[INFO] [stdout]    |                                                  ^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::get_interfaces`
[INFO] [stdout]   --> src/util.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use crate::get_interfaces;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BTreeSet`
[INFO] [stdout]  --> src/canon.rs:2:36
[INFO] [stdout]   |
[INFO] [stdout] 2 | use alloc::collections::{BTreeMap, BTreeSet};
[INFO] [stdout]   |                                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `alloc::string::String`
[INFO] [stdout]  --> src/canon.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use alloc::string::String;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `replace`
[INFO] [stdout]  --> src/canon.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use core::mem::{replace, take};
[INFO] [stdout]   |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `portal_pc_waffle::util::results_ref_2`
[INFO] [stdout]  --> src/canon.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use portal_pc_waffle::util::results_ref_2;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pit_core::Interface`
[INFO] [stdout]   --> src/canon.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use pit_core::Interface;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BTreeMap`
[INFO] [stdout]  --> src/lower.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use alloc::collections::{BTreeMap, BTreeSet};
[INFO] [stdout]   |                          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `replace`
[INFO] [stdout]  --> src/lower.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use core::mem::{replace, take};
[INFO] [stdout]   |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]   --> src/util.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |             ty,
[INFO] [stdout]    |             ^^ help: try ignoring the field: `ty: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nullable`
[INFO] [stdout]   --> src/util.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |             nullable,
[INFO] [stdout]    |             ^^^^^^^^ help: try ignoring the field: `nullable: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `take`
[INFO] [stdout]   --> src/util.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |             take,
[INFO] [stdout]    |             ^^^^ help: try ignoring the field: `take: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ann`
[INFO] [stdout]   --> src/util.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |             ann,
[INFO] [stdout]    |             ^^^ help: try ignoring the field: `ann: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `module`
[INFO] [stdout]   --> src/util.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     module: &mut Module,
[INFO] [stdout]    |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_module`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> src/util.rs:216:25
[INFO] [stdout]     |
[INFO] [stdout] 216 |                         ty,
[INFO] [stdout]     |                         ^^ help: try ignoring the field: `ty: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nullable`
[INFO] [stdout]    --> src/util.rs:217:25
[INFO] [stdout]     |
[INFO] [stdout] 217 |                         nullable,
[INFO] [stdout]     |                         ^^^^^^^^ help: try ignoring the field: `nullable: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `take`
[INFO] [stdout]    --> src/util.rs:218:25
[INFO] [stdout]     |
[INFO] [stdout] 218 |                         take,
[INFO] [stdout]     |                         ^^^^ help: try ignoring the field: `take: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ann`
[INFO] [stdout]    --> src/util.rs:219:25
[INFO] [stdout]     |
[INFO] [stdout] 219 |                         ann,
[INFO] [stdout]     |                         ^^^ help: try ignoring the field: `ann: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tx`
[INFO] [stdout]   --> src/canon.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let tx = m.tables.push(TableData {
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_tx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tts`
[INFO] [stdout]    --> src/canon.rs:125:41
[INFO] [stdout]     |
[INFO] [stdout] 125 |                         let (ta, _, ts, tts) =
[INFO] [stdout]     |                                         ^^^ help: if this is intentional, prefix it with an underscore: `_tts`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `returns`
[INFO] [stdout]    --> src/canon.rs:256:21
[INFO] [stdout]     |
[INFO] [stdout] 256 |             params, returns, ..
[INFO] [stdout]     |                     ^^^^^^^-
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: try removing the field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/canon.rs:348:29
[INFO] [stdout]     |
[INFO] [stdout] 348 |                         let c = b.add_op(k, Operator::Call { function_index: tf }, &[a], &t);
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/canon.rs:229:21
[INFO] [stdout]     |
[INFO] [stdout] 229 |                 let mut b = b.entry(a.to_owned()).or_insert_with(|| BTreeMap::new());
[INFO] [stdout]     |                     ----^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nullable`
[INFO] [stdout]   --> src/lower.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         nullable,
[INFO] [stdout]    |         ^^^^^^^^ help: try ignoring the field: `nullable: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nullable`
[INFO] [stdout]    --> src/lower.rs:219:17
[INFO] [stdout]     |
[INFO] [stdout] 219 |                 nullable
[INFO] [stdout]     |                 ^^^^^^^^ help: try ignoring the field: `nullable: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tys`
[INFO] [stdout]    --> src/lower.rs:256:25
[INFO] [stdout]     |
[INFO] [stdout] 256 |                     let tys = b.blocks[k].params.iter().map(|a| a.0).collect::<Vec<_>>();
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_tys`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ridx`
[INFO] [stdout]    --> src/lower.rs:320:33
[INFO] [stdout]     |
[INFO] [stdout] 320 | ...                   let ridx = b.add_op(
[INFO] [stdout]     |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_ridx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lower.rs:170:13
[INFO] [stdout]     |
[INFO] [stdout] 170 |         let x = b.type_pool.from_iter(once(Type::I32));
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nullable`
[INFO] [stdout]    --> src/lower.rs:187:33
[INFO] [stdout]     |
[INFO] [stdout] 187 | ...                   nullable
[INFO] [stdout]     |                       ^^^^^^^^ help: try ignoring the field: `nullable: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nullable`
[INFO] [stdout]    --> src/lower.rs:198:33
[INFO] [stdout]     |
[INFO] [stdout] 198 | ...                   nullable
[INFO] [stdout]     |                       ^^^^^^^^ help: try ignoring the field: `nullable: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]    --> src/lower.rs:169:31
[INFO] [stdout]     |
[INFO] [stdout] 169 |     m.try_take_per_func_body(|m, b| {
[INFO] [stdout]     |                               ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]   --> src/tpit.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         ty,
[INFO] [stdout]    |         ^^ help: try ignoring the field: `ty: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nullable`
[INFO] [stdout]   --> src/tpit.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         nullable,
[INFO] [stdout]    |         ^^^^^^^^ help: try ignoring the field: `nullable: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ann`
[INFO] [stdout]   --> src/tpit.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         ann,
[INFO] [stdout]    |         ^^^ help: try ignoring the field: `ann: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `returns`
[INFO] [stdout]    --> src/tpit.rs:308:54
[INFO] [stdout]     |
[INFO] [stdout] 308 |                 if let SignatureData::Func { params, returns,.. } =
[INFO] [stdout]     |                                                      ^^^^^^^-
[INFO] [stdout]     |                                                      |
[INFO] [stdout]     |                                                      help: try removing the field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `returns`
[INFO] [stdout]    --> src/tpit.rs:359:54
[INFO] [stdout]     |
[INFO] [stdout] 359 |                 if let SignatureData::Func { params, returns,.. } =
[INFO] [stdout]     |                                                      ^^^^^^^-
[INFO] [stdout]     |                                                      |
[INFO] [stdout]     |                                                      help: try removing the field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/tpit.rs:407:13
[INFO] [stdout]     |
[INFO] [stdout] 407 |         let f = waffle_funcs(m, &i, false);
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `returns`
[INFO] [stdout]    --> src/tpit.rs:414:66
[INFO] [stdout]     |
[INFO] [stdout] 414 | ...                   if let SignatureData::Func { params, returns,.. } =
[INFO] [stdout]     |                                                            ^^^^^^^-
[INFO] [stdout]     |                                                            |
[INFO] [stdout]     |                                                            help: try removing the field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/tpit.rs:569:33
[INFO] [stdout]     |
[INFO] [stdout] 569 | ...                   let p = new_sig(
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/tpit.rs:632:29
[INFO] [stdout]     |
[INFO] [stdout] 632 |                         let p = new_sig(
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/tutils.rs:142:10
[INFO] [stdout]     |
[INFO] [stdout] 142 |     let (s, mut o) = e.build(m, &mut f, q)?;
[INFO] [stdout]     |          ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/tutils.rs:200:10
[INFO] [stdout]     |
[INFO] [stdout] 200 |     let (s, mut o) = e.build(m, &mut f, r)?;
[INFO] [stdout]     |          ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/lib.rs:30:14
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let (s, i) = pit_core::parse_interface(s)
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/lib.rs:31:23
[INFO] [stdout]    |
[INFO] [stdout] 31 |             .map_err(|e: nom::Err<nom::error::Error<&str>>| anyhow::anyhow!("invalid pit"))?;
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling pit-patch v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BTreeMap` and `BTreeSet`
[INFO] [stdout]  --> src/lib.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 |     collections::{BTreeMap, BTreeSet}, vec::Vec,
[INFO] [stdout]   |                   ^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arg` and `Sig`
[INFO] [stdout]  --> src/lib.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 | use pit_core::{Arg, Interface, Sig};
[INFO] [stdout]   |                ^^^             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ExportKind`, `FuncDecl`, `FunctionBody`, `ImportKind`, `SignatureData`, `TableData`, `Type`, and `util::new_sig`
[INFO] [stdout]   --> src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     util::new_sig, ExportKind, FuncDecl, FunctionBody, ImportKind, Module, SignatureData,
[INFO] [stdout]    |     ^^^^^^^^^^^^^  ^^^^^^^^^^  ^^^^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^^          ^^^^^^^^^^^^^
[INFO] [stdout] 13 |     TableData, Type,
[INFO] [stdout]    |     ^^^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::util::add_op`
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use crate::util::add_op;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BTreeSet`
[INFO] [stdout]  --> src/util.rs:1:36
[INFO] [stdout]   |
[INFO] [stdout] 1 | use alloc::collections::{BTreeMap, BTreeSet};
[INFO] [stdout]   |                                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `replace` and `take`
[INFO] [stdout]  --> src/util.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use core::mem::{replace, take};
[INFO] [stdout]   |                 ^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `anyhow::Context`
[INFO] [stdout]  --> src/util.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use anyhow::Context;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ResTy`
[INFO] [stdout]   --> src/util.rs:10:21
[INFO] [stdout]    |
[INFO] [stdout] 10 | use pit_core::{Arg, ResTy};
[INFO] [stdout]    |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BlockTarget`, `Block`, `TableData`, and `Table`
[INFO] [stdout]   --> src/util.rs:12:20
[INFO] [stdout]    |
[INFO] [stdout] 12 |     util::new_sig, Block, BlockTarget, Export, ExportKind, Func, FuncDecl, FunctionBody, Import,
[INFO] [stdout]    |                    ^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 13 |     ImportKind, Module, Operator, SignatureData, Table, TableData, Type, Value, WithNullable,
[INFO] [stdout]    |                                                  ^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::get_interfaces`
[INFO] [stdout]   --> src/util.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use crate::get_interfaces;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BTreeSet`
[INFO] [stdout]  --> src/canon.rs:2:36
[INFO] [stdout]   |
[INFO] [stdout] 2 | use alloc::collections::{BTreeMap, BTreeSet};
[INFO] [stdout]   |                                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `alloc::string::String`
[INFO] [stdout]  --> src/canon.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use alloc::string::String;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `replace`
[INFO] [stdout]  --> src/canon.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use core::mem::{replace, take};
[INFO] [stdout]   |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `portal_pc_waffle::util::results_ref_2`
[INFO] [stdout]  --> src/canon.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use portal_pc_waffle::util::results_ref_2;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pit_core::Interface`
[INFO] [stdout]   --> src/canon.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use pit_core::Interface;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BTreeMap`
[INFO] [stdout]  --> src/lower.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use alloc::collections::{BTreeMap, BTreeSet};
[INFO] [stdout]   |                          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `replace`
[INFO] [stdout]  --> src/lower.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use core::mem::{replace, take};
[INFO] [stdout]   |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]   --> src/util.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |             ty,
[INFO] [stdout]    |             ^^ help: try ignoring the field: `ty: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nullable`
[INFO] [stdout]   --> src/util.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |             nullable,
[INFO] [stdout]    |             ^^^^^^^^ help: try ignoring the field: `nullable: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `take`
[INFO] [stdout]   --> src/util.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |             take,
[INFO] [stdout]    |             ^^^^ help: try ignoring the field: `take: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ann`
[INFO] [stdout]   --> src/util.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |             ann,
[INFO] [stdout]    |             ^^^ help: try ignoring the field: `ann: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `module`
[INFO] [stdout]   --> src/util.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     module: &mut Module,
[INFO] [stdout]    |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_module`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> src/util.rs:216:25
[INFO] [stdout]     |
[INFO] [stdout] 216 |                         ty,
[INFO] [stdout]     |                         ^^ help: try ignoring the field: `ty: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nullable`
[INFO] [stdout]    --> src/util.rs:217:25
[INFO] [stdout]     |
[INFO] [stdout] 217 |                         nullable,
[INFO] [stdout]     |                         ^^^^^^^^ help: try ignoring the field: `nullable: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `take`
[INFO] [stdout]    --> src/util.rs:218:25
[INFO] [stdout]     |
[INFO] [stdout] 218 |                         take,
[INFO] [stdout]     |                         ^^^^ help: try ignoring the field: `take: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ann`
[INFO] [stdout]    --> src/util.rs:219:25
[INFO] [stdout]     |
[INFO] [stdout] 219 |                         ann,
[INFO] [stdout]     |                         ^^^ help: try ignoring the field: `ann: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tx`
[INFO] [stdout]   --> src/canon.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let tx = m.tables.push(TableData {
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_tx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tts`
[INFO] [stdout]    --> src/canon.rs:125:41
[INFO] [stdout]     |
[INFO] [stdout] 125 |                         let (ta, _, ts, tts) =
[INFO] [stdout]     |                                         ^^^ help: if this is intentional, prefix it with an underscore: `_tts`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `returns`
[INFO] [stdout]    --> src/canon.rs:256:21
[INFO] [stdout]     |
[INFO] [stdout] 256 |             params, returns, ..
[INFO] [stdout]     |                     ^^^^^^^-
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: try removing the field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/canon.rs:348:29
[INFO] [stdout]     |
[INFO] [stdout] 348 |                         let c = b.add_op(k, Operator::Call { function_index: tf }, &[a], &t);
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/canon.rs:229:21
[INFO] [stdout]     |
[INFO] [stdout] 229 |                 let mut b = b.entry(a.to_owned()).or_insert_with(|| BTreeMap::new());
[INFO] [stdout]     |                     ----^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nullable`
[INFO] [stdout]   --> src/lower.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         nullable,
[INFO] [stdout]    |         ^^^^^^^^ help: try ignoring the field: `nullable: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nullable`
[INFO] [stdout]    --> src/lower.rs:219:17
[INFO] [stdout]     |
[INFO] [stdout] 219 |                 nullable
[INFO] [stdout]     |                 ^^^^^^^^ help: try ignoring the field: `nullable: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tys`
[INFO] [stdout]    --> src/lower.rs:256:25
[INFO] [stdout]     |
[INFO] [stdout] 256 |                     let tys = b.blocks[k].params.iter().map(|a| a.0).collect::<Vec<_>>();
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_tys`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ridx`
[INFO] [stdout]    --> src/lower.rs:320:33
[INFO] [stdout]     |
[INFO] [stdout] 320 | ...                   let ridx = b.add_op(
[INFO] [stdout]     |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_ridx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/lower.rs:170:13
[INFO] [stdout]     |
[INFO] [stdout] 170 |         let x = b.type_pool.from_iter(once(Type::I32));
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nullable`
[INFO] [stdout]    --> src/lower.rs:187:33
[INFO] [stdout]     |
[INFO] [stdout] 187 | ...                   nullable
[INFO] [stdout]     |                       ^^^^^^^^ help: try ignoring the field: `nullable: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nullable`
[INFO] [stdout]    --> src/lower.rs:198:33
[INFO] [stdout]     |
[INFO] [stdout] 198 | ...                   nullable
[INFO] [stdout]     |                       ^^^^^^^^ help: try ignoring the field: `nullable: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]    --> src/lower.rs:169:31
[INFO] [stdout]     |
[INFO] [stdout] 169 |     m.try_take_per_func_body(|m, b| {
[INFO] [stdout]     |                               ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]   --> src/tpit.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         ty,
[INFO] [stdout]    |         ^^ help: try ignoring the field: `ty: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nullable`
[INFO] [stdout]   --> src/tpit.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         nullable,
[INFO] [stdout]    |         ^^^^^^^^ help: try ignoring the field: `nullable: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ann`
[INFO] [stdout]   --> src/tpit.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         ann,
[INFO] [stdout]    |         ^^^ help: try ignoring the field: `ann: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `returns`
[INFO] [stdout]    --> src/tpit.rs:308:54
[INFO] [stdout]     |
[INFO] [stdout] 308 |                 if let SignatureData::Func { params, returns,.. } =
[INFO] [stdout]     |                                                      ^^^^^^^-
[INFO] [stdout]     |                                                      |
[INFO] [stdout]     |                                                      help: try removing the field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `returns`
[INFO] [stdout]    --> src/tpit.rs:359:54
[INFO] [stdout]     |
[INFO] [stdout] 359 |                 if let SignatureData::Func { params, returns,.. } =
[INFO] [stdout]     |                                                      ^^^^^^^-
[INFO] [stdout]     |                                                      |
[INFO] [stdout]     |                                                      help: try removing the field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/tpit.rs:407:13
[INFO] [stdout]     |
[INFO] [stdout] 407 |         let f = waffle_funcs(m, &i, false);
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `returns`
[INFO] [stdout]    --> src/tpit.rs:414:66
[INFO] [stdout]     |
[INFO] [stdout] 414 | ...                   if let SignatureData::Func { params, returns,.. } =
[INFO] [stdout]     |                                                            ^^^^^^^-
[INFO] [stdout]     |                                                            |
[INFO] [stdout]     |                                                            help: try removing the field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/tpit.rs:569:33
[INFO] [stdout]     |
[INFO] [stdout] 569 | ...                   let p = new_sig(
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/tpit.rs:632:29
[INFO] [stdout]     |
[INFO] [stdout] 632 |                         let p = new_sig(
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/tutils.rs:142:10
[INFO] [stdout]     |
[INFO] [stdout] 142 |     let (s, mut o) = e.build(m, &mut f, q)?;
[INFO] [stdout]     |          ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/tutils.rs:200:10
[INFO] [stdout]     |
[INFO] [stdout] 200 |     let (s, mut o) = e.build(m, &mut f, r)?;
[INFO] [stdout]     |          ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/lib.rs:30:14
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let (s, i) = pit_core::parse_interface(s)
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/lib.rs:31:23
[INFO] [stdout]    |
[INFO] [stdout] 31 |             .map_err(|e: nom::Err<nom::error::Error<&str>>| anyhow::anyhow!("invalid pit"))?;
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "56c9ee7876cd03c89673c520599510cf4395e1c87753bb2babefca910ff29df3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56c9ee7876cd03c89673c520599510cf4395e1c87753bb2babefca910ff29df3", kill_on_drop: false }`
[INFO] [stdout] 56c9ee7876cd03c89673c520599510cf4395e1c87753bb2babefca910ff29df3
