[INFO] cloning repository https://github.com/SamGinzburg/vv-pgo-instrument
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SamGinzburg/vv-pgo-instrument" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSamGinzburg%2Fvv-pgo-instrument", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSamGinzburg%2Fvv-pgo-instrument'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d584f0a61aa24562422a749b705f1e69b83d2f45
[INFO] checking SamGinzburg/vv-pgo-instrument against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSamGinzburg%2Fvv-pgo-instrument" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/SamGinzburg/vv-pgo-instrument
[INFO] finished tweaking git repo https://github.com/SamGinzburg/vv-pgo-instrument
[INFO] tweaked toml for git repo https://github.com/SamGinzburg/vv-pgo-instrument written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SamGinzburg/vv-pgo-instrument on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/SamGinzburg/vv-pgo-instrument 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rmp v0.8.11
[INFO] [stderr]   Downloaded rmp-serde v0.15.5
[INFO] [stderr]   Downloaded unicode-segmentation v1.10.0
[INFO] [stderr]   Downloaded libc v0.2.137
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 60a763c62e48be2c16aceacbcc59cd05c183779511b488effbea9d23b1908eb7
[INFO] running `Command { std: "docker" "start" "-a" "60a763c62e48be2c16aceacbcc59cd05c183779511b488effbea9d23b1908eb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60a763c62e48be2c16aceacbcc59cd05c183779511b488effbea9d23b1908eb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60a763c62e48be2c16aceacbcc59cd05c183779511b488effbea9d23b1908eb7", kill_on_drop: false }`
[INFO] [stdout] 60a763c62e48be2c16aceacbcc59cd05c183779511b488effbea9d23b1908eb7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2416a1f6aea0a5a64d0b7b2e61496c8d3412d7fd032b3f493520d94648fe1f1
[INFO] running `Command { std: "docker" "start" "-a" "f2416a1f6aea0a5a64d0b7b2e61496c8d3412d7fd032b3f493520d94648fe1f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling anyhow v1.0.66
[INFO] [stderr]    Compiling unicode-segmentation v1.10.0
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]    Compiling paste v1.0.9
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking id-arena v2.2.1
[INFO] [stderr]     Checking leb128 v0.2.5
[INFO] [stderr]     Checking wasmparser v0.77.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rmp v0.8.11
[INFO] [stderr]    Compiling walrus-macro v0.19.0
[INFO] [stderr]     Checking walrus v0.19.0
[INFO] [stderr]     Checking rmp-serde v0.15.5
[INFO] [stderr]     Checking vv-profiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `walrus::FunctionKind::Import`
[INFO] [stdout]  --> src/fastcalls.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use walrus::FunctionKind::Import;
[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 import: `walrus::InitExpr::*`
[INFO] [stdout]  --> src/profilemap.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use walrus::InitExpr::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `walrus::DataKind::Active`
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use walrus::DataKind::Active;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `walrus::FunctionBuilder`
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use walrus::FunctionBuilder;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `walrus::InstrSeqBuilder`
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | use walrus::InstrSeqBuilder;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `walrus::FunctionKind::Import`
[INFO] [stdout]  --> src/fastcalls.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use walrus::FunctionKind::Import;
[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 import: `walrus::InitExpr::*`
[INFO] [stdout]  --> src/profilemap.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use walrus::InitExpr::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `walrus::DataKind::Active`
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use walrus::DataKind::Active;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `walrus::FunctionBuilder`
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use walrus::FunctionBuilder;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `walrus::InstrSeqBuilder`
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | use walrus::InstrSeqBuilder;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/fastcalls.rs:49:31
[INFO] [stdout]    |
[INFO] [stdout] 49 |                     .map(|(x, y)| x)
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/fastcalls.rs:48:31
[INFO] [stdout]    |
[INFO] [stdout] 48 |                     .filter(|(x, y)| y == self.all_types.get(&call_indirect.ty).unwrap())
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]   --> src/fastcalls.rs:34:66
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn visit_instr_mut(&mut self, instr: &mut walrus::ir::Instr, idx: &mut walrus::InstrLocId) {
[INFO] [stdout]    |                                                                  ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/fastcalls.rs:270:66
[INFO] [stdout]     |
[INFO] [stdout] 270 |     fn visit_instr_mut(&mut self, instr: &mut walrus::ir::Instr, idx: &mut walrus::InstrLocId) {
[INFO] [stdout]     |                                                                  ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/profilemap.rs:28:24
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 table: t,
[INFO] [stdout]    |                        ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]   --> src/main.rs:40:66
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn visit_instr_mut(&mut self, instr: &mut walrus::ir::Instr, idx: &mut walrus::InstrLocId) {
[INFO] [stdout]    |                                                                  ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/main.rs:280:25
[INFO] [stdout]     |
[INFO] [stdout] 280 |                         _ => {
[INFO] [stdout]     |                         ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/main.rs:280:25
[INFO] [stdout]     |
[INFO] [stdout] 254 | /                         MapValue {
[INFO] [stdout] 255 | |                             f_id: Some(id),
[INFO] [stdout] 256 | |                             f_bool: _b,
[INFO] [stdout] 257 | |                         } => {
[INFO] [stdout]     | |_________________________- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 266 | /                         MapValue {
[INFO] [stdout] 267 | |                             f_id: None,
[INFO] [stdout] 268 | |                             f_bool: true,
[INFO] [stdout] 269 | |                         } => {
[INFO] [stdout]     | |_________________________- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 274 | /                         MapValue {
[INFO] [stdout] 275 | |                             f_id: None,
[INFO] [stdout] 276 | |                             f_bool: false,
[INFO] [stdout] 277 | |                         } => {
[INFO] [stdout]     | |_________________________- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 280 |                           _ => {
[INFO] [stdout]     |                           ^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:183:17
[INFO] [stdout]     |
[INFO] [stdout] 183 |             let mut body = func.entry_block();
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:336:17
[INFO] [stdout]     |
[INFO] [stdout] 336 |             let mut func_builder = func.builder_mut();
[INFO] [stdout]     |                 ----^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `else_`
[INFO] [stdout]    --> src/main.rs:402:34
[INFO] [stdout]     |
[INFO] [stdout] 402 | ...                   |else_| {},
[INFO] [stdout]     |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_else_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `loc`
[INFO] [stdout]    --> src/main.rs:194:29
[INFO] [stdout]     |
[INFO] [stdout] 194 |                 for (instr, loc) in &bmut.instrs {
[INFO] [stdout]     |                             ^^^ help: if this is intentional, prefix it with an underscore: `_loc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> src/main.rs:247:34
[INFO] [stdout]     |
[INFO] [stdout] 247 |                 for (seq, point, ty) in insertion_point {
[INFO] [stdout]     |                                  ^^ help: if this is intentional, prefix it with an underscore: `_ty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `orig_map_val`
[INFO] [stdout]    --> src/main.rs:249:25
[INFO] [stdout]     |
[INFO] [stdout] 249 |                     let orig_map_val: &MapValue =
[INFO] [stdout]     |                         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_orig_map_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/main.rs:143:16
[INFO] [stdout]     |
[INFO] [stdout] 143 |         .map(|(id, func)| {
[INFO] [stdout]     |                ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inner_idx`
[INFO] [stdout]    --> src/main.rs:313:17
[INFO] [stdout]     |
[INFO] [stdout] 313 |             for inner_idx in 0..indirect_window {
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_inner_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/main.rs:331:17
[INFO] [stdout]     |
[INFO] [stdout] 331 |             let id = function_idx;
[INFO] [stdout]     |                 ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:112:13
[INFO] [stdout]     |
[INFO] [stdout] 112 |             file.read_to_end(&mut buf);
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 112 |             let _ = file.read_to_end(&mut buf);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/main.rs:188:13
[INFO] [stdout]     |
[INFO] [stdout] 188 |             drop(body);
[INFO] [stdout]     |             ^^^^^----^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `id_arena::Id<InstrSeq>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 188 -             drop(body);
[INFO] [stdout] 188 +             let _ = body;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/main.rs:218:13
[INFO] [stdout]     |
[INFO] [stdout] 218 |             drop(body);
[INFO] [stdout]     |             ^^^^^----^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `id_arena::Id<InstrSeq>`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 218 -             drop(body);
[INFO] [stdout] 218 +             let _ = body;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/fastcalls.rs:49:31
[INFO] [stdout]    |
[INFO] [stdout] 49 |                     .map(|(x, y)| x)
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/fastcalls.rs:48:31
[INFO] [stdout]    |
[INFO] [stdout] 48 |                     .filter(|(x, y)| y == self.all_types.get(&call_indirect.ty).unwrap())
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]   --> src/fastcalls.rs:34:66
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn visit_instr_mut(&mut self, instr: &mut walrus::ir::Instr, idx: &mut walrus::InstrLocId) {
[INFO] [stdout]    |                                                                  ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/fastcalls.rs:270:66
[INFO] [stdout]     |
[INFO] [stdout] 270 |     fn visit_instr_mut(&mut self, instr: &mut walrus::ir::Instr, idx: &mut walrus::InstrLocId) {
[INFO] [stdout]     |                                                                  ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/profilemap.rs:28:24
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 table: t,
[INFO] [stdout]    |                        ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]   --> src/main.rs:40:66
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn visit_instr_mut(&mut self, instr: &mut walrus::ir::Instr, idx: &mut walrus::InstrLocId) {
[INFO] [stdout]    |                                                                  ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/main.rs:280:25
[INFO] [stdout]     |
[INFO] [stdout] 280 |                         _ => {
[INFO] [stdout]     |                         ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/main.rs:280:25
[INFO] [stdout]     |
[INFO] [stdout] 254 | /                         MapValue {
[INFO] [stdout] 255 | |                             f_id: Some(id),
[INFO] [stdout] 256 | |                             f_bool: _b,
[INFO] [stdout] 257 | |                         } => {
[INFO] [stdout]     | |_________________________- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 266 | /                         MapValue {
[INFO] [stdout] 267 | |                             f_id: None,
[INFO] [stdout] 268 | |                             f_bool: true,
[INFO] [stdout] 269 | |                         } => {
[INFO] [stdout]     | |_________________________- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 274 | /                         MapValue {
[INFO] [stdout] 275 | |                             f_id: None,
[INFO] [stdout] 276 | |                             f_bool: false,
[INFO] [stdout] 277 | |                         } => {
[INFO] [stdout]     | |_________________________- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 280 |                           _ => {
[INFO] [stdout]     |                           ^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:183:17
[INFO] [stdout]     |
[INFO] [stdout] 183 |             let mut body = func.entry_block();
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:336:17
[INFO] [stdout]     |
[INFO] [stdout] 336 |             let mut func_builder = func.builder_mut();
[INFO] [stdout]     |                 ----^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `else_`
[INFO] [stdout]    --> src/main.rs:402:34
[INFO] [stdout]     |
[INFO] [stdout] 402 | ...                   |else_| {},
[INFO] [stdout]     |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_else_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `loc`
[INFO] [stdout]    --> src/main.rs:194:29
[INFO] [stdout]     |
[INFO] [stdout] 194 |                 for (instr, loc) in &bmut.instrs {
[INFO] [stdout]     |                             ^^^ help: if this is intentional, prefix it with an underscore: `_loc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> src/main.rs:247:34
[INFO] [stdout]     |
[INFO] [stdout] 247 |                 for (seq, point, ty) in insertion_point {
[INFO] [stdout]     |                                  ^^ help: if this is intentional, prefix it with an underscore: `_ty`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `orig_map_val`
[INFO] [stdout]    --> src/main.rs:249:25
[INFO] [stdout]     |
[INFO] [stdout] 249 |                     let orig_map_val: &MapValue =
[INFO] [stdout]     |                         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_orig_map_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/main.rs:143:16
[INFO] [stdout]     |
[INFO] [stdout] 143 |         .map(|(id, func)| {
[INFO] [stdout]     |                ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inner_idx`
[INFO] [stdout]    --> src/main.rs:313:17
[INFO] [stdout]     |
[INFO] [stdout] 313 |             for inner_idx in 0..indirect_window {
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_inner_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/main.rs:331:17
[INFO] [stdout]     |
[INFO] [stdout] 331 |             let id = function_idx;
[INFO] [stdout]     |                 ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:112:13
[INFO] [stdout]     |
[INFO] [stdout] 112 |             file.read_to_end(&mut buf);
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 112 |             let _ = file.read_to_end(&mut buf);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/main.rs:188:13
[INFO] [stdout]     |
[INFO] [stdout] 188 |             drop(body);
[INFO] [stdout]     |             ^^^^^----^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `id_arena::Id<InstrSeq>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 188 -             drop(body);
[INFO] [stdout] 188 +             let _ = body;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/main.rs:218:13
[INFO] [stdout]     |
[INFO] [stdout] 218 |             drop(body);
[INFO] [stdout]     |             ^^^^^----^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `id_arena::Id<InstrSeq>`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 218 -             drop(body);
[INFO] [stdout] 218 +             let _ = body;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.97s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasmparser v0.77.0
[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" "f2416a1f6aea0a5a64d0b7b2e61496c8d3412d7fd032b3f493520d94648fe1f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2416a1f6aea0a5a64d0b7b2e61496c8d3412d7fd032b3f493520d94648fe1f1", kill_on_drop: false }`
[INFO] [stdout] f2416a1f6aea0a5a64d0b7b2e61496c8d3412d7fd032b3f493520d94648fe1f1
