[INFO] cloning repository https://github.com/playXE/runtime
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/playXE/runtime" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2Fruntime", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2Fruntime'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4df148d809d63416d585d37d41a4ec3b09079e29
[INFO] linting playXE/runtime against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2Fruntime" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/playXE/runtime
[INFO] finished tweaking git repo https://github.com/playXE/runtime
[INFO] tweaked toml for git repo https://github.com/playXE/runtime written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/playXE/runtime on toolchain nightly
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/playXE/runtime 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" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e2fa6278f2e620c34617e8bb21cf83649af06042da19d7dd53f47c3d68778372
[INFO] running `Command { std: "docker" "start" "-a" "e2fa6278f2e620c34617e8bb21cf83649af06042da19d7dd53f47c3d68778372", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2fa6278f2e620c34617e8bb21cf83649af06042da19d7dd53f47c3d68778372", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2fa6278f2e620c34617e8bb21cf83649af06042da19d7dd53f47c3d68778372", kill_on_drop: false }`
[INFO] [stdout] e2fa6278f2e620c34617e8bb21cf83649af06042da19d7dd53f47c3d68778372
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26a5c6f4be6a5319ea624ac21e19d1640959a29e29e64e762df403c52dfb4b7c
[INFO] running `Command { std: "docker" "start" "-a" "26a5c6f4be6a5319ea624ac21e19d1640959a29e29e64e762df403c52dfb4b7c", kill_on_drop: false }`
[INFO] [stderr]     Checking runtime v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::cycleanalysis::*`
[INFO] [stdout]  --> src/analysis/hammockgraph.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::cycleanalysis::*;
[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: `crate::cfg::*`
[INFO] [stdout]  --> src/analysis/saferegion.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::cfg::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/analysis/mod.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |             cfg: cfg,
[INFO] [stdout]    |             ^^^^^^^^ help: replace it with: `cfg`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout]    = note: `#[warn(clippy::redundant_field_names)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/cfg.rs:231:13
[INFO] [stdout]     |
[INFO] [stdout] 231 |             head: head,
[INFO] [stdout]     |             ^^^^^^^^^^ help: replace it with: `head`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/cfg.rs:233:13
[INFO] [stdout]     |
[INFO] [stdout] 233 |             ty: ty,
[INFO] [stdout]     |             ^^^^^^ help: replace it with: `ty`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/cfg.rs:238:13
[INFO] [stdout]     |
[INFO] [stdout] 238 |             tail: tail,
[INFO] [stdout]     |             ^^^^^^^^^^ help: replace it with: `tail`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/cfg.rs:239:13
[INFO] [stdout]     |
[INFO] [stdout] 239 |             ty: ty,
[INFO] [stdout]     |             ^^^^^^ help: replace it with: `ty`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::cycleanalysis::*`
[INFO] [stdout]  --> src/analysis/hammockgraph.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::cycleanalysis::*;
[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: `crate::cfg::*`
[INFO] [stdout]  --> src/analysis/saferegion.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::cfg::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/analysis/mod.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |             cfg: cfg,
[INFO] [stdout]    |             ^^^^^^^^ help: replace it with: `cfg`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout]    = note: `#[warn(clippy::redundant_field_names)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/cfg.rs:231:13
[INFO] [stdout]     |
[INFO] [stdout] 231 |             head: head,
[INFO] [stdout]     |             ^^^^^^^^^^ help: replace it with: `head`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/cfg.rs:233:13
[INFO] [stdout]     |
[INFO] [stdout] 233 |             ty: ty,
[INFO] [stdout]     |             ^^^^^^ help: replace it with: `ty`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/cfg.rs:238:13
[INFO] [stdout]     |
[INFO] [stdout] 238 |             tail: tail,
[INFO] [stdout]     |             ^^^^^^^^^^ help: replace it with: `tail`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/cfg.rs:239:13
[INFO] [stdout]     |
[INFO] [stdout] 239 |             ty: ty,
[INFO] [stdout]     |             ^^^^^^ help: replace it with: `ty`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/analysis/hammockgraph.rs:146:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |         let mut new_hammock = unvisited.get(&entry).cloned().unwrap();
[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/analysis/hammockgraph.rs:155:17
[INFO] [stdout]     |
[INFO] [stdout] 155 |             let mut v: Rc<RefCell<Hammock>> = v.clone();
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/analysis/hammockgraph.rs:146:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |         let mut new_hammock = unvisited.get(&entry).cloned().unwrap();
[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/analysis/hammockgraph.rs:155:17
[INFO] [stdout]     |
[INFO] [stdout] 155 |             let mut v: Rc<RefCell<Hammock>> = v.clone();
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cfg`, `dom`, `post_dom`, `cycle`, `hammockgraph`, and `saferegion` are never read
[INFO] [stdout]   --> src/analysis/mod.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub struct Analysis<'a> {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout]  8 |     cfg: &'a crate::cfg::ControlFlowGraph,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]  9 |     dom: Option<dom::DominatorTree>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     post_dom: Option<postdom::PostDominatorTree>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 11 |     cycle: Option<cycleanalysis::CycleAnalysis>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 12 |     hammockgraph: Option<hammockgraph::HammockAnalysis>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 13 |     saferegion: Option<saferegion::SafeRegionAnalysis>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you should consider adding a `Default` implementation for `CycleAnalysis`
[INFO] [stdout]   --> src/analysis/cycleanalysis.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     pub fn new() -> Self {
[INFO] [stdout] 13 | |         Self { back_edges: vec![] }
[INFO] [stdout] 14 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stdout]    = note: `#[warn(clippy::new_without_default)]` on by default
[INFO] [stdout] help: try adding this
[INFO] [stdout]    |
[INFO] [stdout] 11 + impl Default for CycleAnalysis {
[INFO] [stdout] 12 +     fn default() -> Self {
[INFO] [stdout] 13 +         Self::new()
[INFO] [stdout] 14 +     }
[INFO] [stdout] 15 + }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: mutable key type
[INFO] [stdout]   --> src/analysis/cycleanalysis.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let mut visited = BlockSet::new();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: ... because it contains `CodeBlockRef`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `Rc<RefCell<CodeBlock>>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `RefCell<CodeBlock>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `Cell<isize>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `UnsafeCell<isize>`, which has interior mutability
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutable_key_type
[INFO] [stdout]    = note: `#[warn(clippy::mutable_key_type)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to pop elements from a `Vec` in a loop
[INFO] [stdout]   --> src/analysis/cycleanalysis.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |             let block = stack.pop().unwrap();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_while_let_some
[INFO] [stdout]    = note: `#[warn(clippy::manual_while_let_some)]` on by default
[INFO] [stdout] help: consider using a `while..let` loop
[INFO] [stdout]    |
[INFO] [stdout] 21 ~         while let Some(block) = stack.pop() {
[INFO] [stdout] 22 ~             
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you should consider adding a `Default` implementation for `DominatorTree`
[INFO] [stdout]   --> src/analysis/dom.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     pub fn new() -> Self {
[INFO] [stdout] 13 | |         Self {
[INFO] [stdout] 14 | |             blocks: vec![],
[INFO] [stdout] 15 | |             i_dom: vec![],
[INFO] [stdout] ...  |
[INFO] [stdout] 19 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stdout] help: try adding this
[INFO] [stdout]    |
[INFO] [stdout] 11 + impl Default for DominatorTree {
[INFO] [stdout] 12 +     fn default() -> Self {
[INFO] [stdout] 13 +         Self::new()
[INFO] [stdout] 14 +     }
[INFO] [stdout] 15 + }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cfg`, `dom`, `post_dom`, `cycle`, `hammockgraph`, and `saferegion` are never read
[INFO] [stdout]   --> src/analysis/mod.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub struct Analysis<'a> {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout]  8 |     cfg: &'a crate::cfg::ControlFlowGraph,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]  9 |     dom: Option<dom::DominatorTree>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     post_dom: Option<postdom::PostDominatorTree>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 11 |     cycle: Option<cycleanalysis::CycleAnalysis>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 12 |     hammockgraph: Option<hammockgraph::HammockAnalysis>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 13 |     saferegion: Option<saferegion::SafeRegionAnalysis>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the variable `i` is used as a loop counter
[INFO] [stdout]   --> src/analysis/dom.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         for block in post_order.iter() {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (i, block) in post_order.iter().enumerate()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_counter_loop
[INFO] [stdout]    = note: `#[warn(clippy::explicit_counter_loop)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you should consider adding a `Default` implementation for `CycleAnalysis`
[INFO] [stdout]   --> src/analysis/cycleanalysis.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     pub fn new() -> Self {
[INFO] [stdout] 13 | |         Self { back_edges: vec![] }
[INFO] [stdout] 14 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stdout]    = note: `#[warn(clippy::new_without_default)]` on by default
[INFO] [stdout] help: try adding this
[INFO] [stdout]    |
[INFO] [stdout] 11 + impl Default for CycleAnalysis {
[INFO] [stdout] 12 +     fn default() -> Self {
[INFO] [stdout] 13 +         Self::new()
[INFO] [stdout] 14 +     }
[INFO] [stdout] 15 + }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you are using an explicit closure for copying elements
[INFO] [stdout]   --> src/analysis/dom.rs:51:26
[INFO] [stdout]    |
[INFO] [stdout] 51 |           let start_node = self
[INFO] [stdout]    |  __________________________^
[INFO] [stdout] 52 | |             .blocks_to_index
[INFO] [stdout] 53 | |             .get(&cfg.get_entry_block())
[INFO] [stdout] 54 | |             .map(|x| *x)
[INFO] [stdout]    | |________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stdout]    = note: `#[warn(clippy::map_clone)]` on by default
[INFO] [stdout] help: consider calling the dedicated `copied` method
[INFO] [stdout]    |
[INFO] [stdout] 51 ~         let start_node = self
[INFO] [stdout] 52 +             .blocks_to_index
[INFO] [stdout] 53 +             .get(&cfg.get_entry_block()).copied()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]   --> src/analysis/dom.rs:79:17
[INFO] [stdout]    |
[INFO] [stdout] 79 | /                 if processed {
[INFO] [stdout] 80 | |                     if self.i_dom[b_ind] != new_idom {
[INFO] [stdout] 81 | |                         self.i_dom[b_ind] = new_idom;
[INFO] [stdout] 82 | |                         changed = true;
[INFO] [stdout] 83 | |                     }
[INFO] [stdout] 84 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout]    = note: `#[warn(clippy::collapsible_if)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]    |
[INFO] [stdout] 79 ~                 if processed
[INFO] [stdout] 80 ~                     && self.i_dom[b_ind] != new_idom {
[INFO] [stdout] 81 |                         self.i_dom[b_ind] = new_idom;
[INFO] [stdout] 82 |                         changed = true;
[INFO] [stdout] 83 ~                     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/analysis/dom.rs:110:16
[INFO] [stdout]     |
[INFO] [stdout] 110 |             if !(start_id != next_id && !dominates) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `start_id == next_id || dominates`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]     = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this function has too many arguments (8/7)
[INFO] [stdout]   --> src/analysis/hammockgraph.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 | /     pub fn expand_hammock(
[INFO] [stdout] 62 | |         &mut self,
[INFO] [stdout] 63 | |         entry: &mut CodeBlockRef,
[INFO] [stdout] 64 | |         exit: &mut CodeBlockRef,
[INFO] [stdout] ...  |
[INFO] [stdout] 69 | |         cfg: &ControlFlowGraph,
[INFO] [stdout] 70 | |     ) -> bool {
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
[INFO] [stdout]    = note: `#[warn(clippy::too_many_arguments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: mutable key type
[INFO] [stdout]   --> src/analysis/cycleanalysis.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let mut visited = BlockSet::new();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: ... because it contains `CodeBlockRef`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `Rc<RefCell<CodeBlock>>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `RefCell<CodeBlock>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `Cell<isize>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `UnsafeCell<isize>`, which has interior mutability
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutable_key_type
[INFO] [stdout]    = note: `#[warn(clippy::mutable_key_type)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to pop elements from a `Vec` in a loop
[INFO] [stdout]   --> src/analysis/cycleanalysis.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |             let block = stack.pop().unwrap();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_while_let_some
[INFO] [stdout]    = note: `#[warn(clippy::manual_while_let_some)]` on by default
[INFO] [stdout] help: consider using a `while..let` loop
[INFO] [stdout]    |
[INFO] [stdout] 21 ~         while let Some(block) = stack.pop() {
[INFO] [stdout] 22 ~             
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: mutable key type
[INFO] [stdout]   --> src/analysis/hammockgraph.rs:98:20
[INFO] [stdout]    |
[INFO] [stdout] 98 |         unvisited: &mut BlockToHammockMap,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: ... because it contains `CodeBlockRef`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `Rc<RefCell<CodeBlock>>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `RefCell<CodeBlock>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `Cell<isize>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `UnsafeCell<isize>`, which has interior mutability
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutable_key_type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you should consider adding a `Default` implementation for `DominatorTree`
[INFO] [stdout]   --> src/analysis/dom.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     pub fn new() -> Self {
[INFO] [stdout] 13 | |         Self {
[INFO] [stdout] 14 | |             blocks: vec![],
[INFO] [stdout] 15 | |             i_dom: vec![],
[INFO] [stdout] ...  |
[INFO] [stdout] 19 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stdout] help: try adding this
[INFO] [stdout]    |
[INFO] [stdout] 11 + impl Default for DominatorTree {
[INFO] [stdout] 12 +     fn default() -> Self {
[INFO] [stdout] 13 +         Self::new()
[INFO] [stdout] 14 +     }
[INFO] [stdout] 15 + }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the variable `i` is used as a loop counter
[INFO] [stdout]   --> src/analysis/dom.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         for block in post_order.iter() {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (i, block) in post_order.iter().enumerate()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_counter_loop
[INFO] [stdout]    = note: `#[warn(clippy::explicit_counter_loop)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: mutable key type
[INFO] [stdout]    --> src/analysis/hammockgraph.rs:198:9
[INFO] [stdout]     |
[INFO] [stdout] 198 |         let mut unvisited = BlockToHammockMap::new();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: ... because it contains `CodeBlockRef`, which has interior mutability
[INFO] [stdout]     = note: ... because it contains `Rc<RefCell<CodeBlock>>`, which has interior mutability
[INFO] [stdout]     = note: ... because it contains `RefCell<CodeBlock>`, which has interior mutability
[INFO] [stdout]     = note: ... because it contains `Cell<isize>`, which has interior mutability
[INFO] [stdout]     = note: ... because it contains `UnsafeCell<isize>`, which has interior mutability
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutable_key_type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you are using an explicit closure for copying elements
[INFO] [stdout]   --> src/analysis/dom.rs:51:26
[INFO] [stdout]    |
[INFO] [stdout] 51 |           let start_node = self
[INFO] [stdout]    |  __________________________^
[INFO] [stdout] 52 | |             .blocks_to_index
[INFO] [stdout] 53 | |             .get(&cfg.get_entry_block())
[INFO] [stdout] 54 | |             .map(|x| *x)
[INFO] [stdout]    | |________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stdout]    = note: `#[warn(clippy::map_clone)]` on by default
[INFO] [stdout] help: consider calling the dedicated `copied` method
[INFO] [stdout]    |
[INFO] [stdout] 51 ~         let start_node = self
[INFO] [stdout] 52 +             .blocks_to_index
[INFO] [stdout] 53 +             .get(&cfg.get_entry_block()).copied()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you should consider adding a `Default` implementation for `PostDominatorTree`
[INFO] [stdout]   --> src/analysis/postdom.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     pub fn new() -> Self {
[INFO] [stdout] 17 | |         Self {
[INFO] [stdout] 18 | |             blocks: vec![],
[INFO] [stdout] 19 | |             p_dom: vec![],
[INFO] [stdout] ...  |
[INFO] [stdout] 24 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stdout] help: try adding this
[INFO] [stdout]    |
[INFO] [stdout] 15 + impl Default for PostDominatorTree {
[INFO] [stdout] 16 +     fn default() -> Self {
[INFO] [stdout] 17 +         Self::new()
[INFO] [stdout] 18 +     }
[INFO] [stdout] 19 + }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/analysis/postdom.rs:40:16
[INFO] [stdout]    |
[INFO] [stdout] 40 |             if !(start_id != next_id && !dominates) {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `start_id == next_id || dominates`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]   --> src/analysis/dom.rs:79:17
[INFO] [stdout]    |
[INFO] [stdout] 79 | /                 if processed {
[INFO] [stdout] 80 | |                     if self.i_dom[b_ind] != new_idom {
[INFO] [stdout] 81 | |                         self.i_dom[b_ind] = new_idom;
[INFO] [stdout] 82 | |                         changed = true;
[INFO] [stdout] 83 | |                     }
[INFO] [stdout] 84 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout]    = note: `#[warn(clippy::collapsible_if)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]    |
[INFO] [stdout] 79 ~                 if processed
[INFO] [stdout] 80 ~                     && self.i_dom[b_ind] != new_idom {
[INFO] [stdout] 81 |                         self.i_dom[b_ind] = new_idom;
[INFO] [stdout] 82 |                         changed = true;
[INFO] [stdout] 83 ~                     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the variable `i` is used as a loop counter
[INFO] [stdout]   --> src/analysis/postdom.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         for block in post_order.iter() {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (i, block) in post_order.iter().enumerate()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_counter_loop
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/analysis/dom.rs:110:16
[INFO] [stdout]     |
[INFO] [stdout] 110 |             if !(start_id != next_id && !dominates) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `start_id == next_id || dominates`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]     = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]    --> src/analysis/postdom.rs:100:17
[INFO] [stdout]     |
[INFO] [stdout] 100 | /                 if processed {
[INFO] [stdout] 101 | |                     if self.p_dom[b_ind] != new_pdom {
[INFO] [stdout] 102 | |                         self.p_dom[b_ind] = new_pdom;
[INFO] [stdout] 103 | |                         changed = true;
[INFO] [stdout] 104 | |                     }
[INFO] [stdout] 105 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 100 ~                 if processed
[INFO] [stdout] 101 ~                     && self.p_dom[b_ind] != new_pdom {
[INFO] [stdout] 102 |                         self.p_dom[b_ind] = new_pdom;
[INFO] [stdout] 103 |                         changed = true;
[INFO] [stdout] 104 ~                     }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this function has too many arguments (8/7)
[INFO] [stdout]   --> src/analysis/hammockgraph.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 | /     pub fn expand_hammock(
[INFO] [stdout] 62 | |         &mut self,
[INFO] [stdout] 63 | |         entry: &mut CodeBlockRef,
[INFO] [stdout] 64 | |         exit: &mut CodeBlockRef,
[INFO] [stdout] ...  |
[INFO] [stdout] 69 | |         cfg: &ControlFlowGraph,
[INFO] [stdout] 70 | |     ) -> bool {
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
[INFO] [stdout]    = note: `#[warn(clippy::too_many_arguments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: mutable key type
[INFO] [stdout]   --> src/analysis/hammockgraph.rs:98:20
[INFO] [stdout]    |
[INFO] [stdout] 98 |         unvisited: &mut BlockToHammockMap,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: ... because it contains `CodeBlockRef`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `Rc<RefCell<CodeBlock>>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `RefCell<CodeBlock>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `Cell<isize>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `UnsafeCell<isize>`, which has interior mutability
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutable_key_type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: mutable key type
[INFO] [stdout]   --> src/analysis/saferegion.rs:24:65
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn get_blocks_with_backward_branches(ca: &CycleAnalysis) -> BlockSet {
[INFO] [stdout]    |                                                                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: ... because it contains `CodeBlockRef`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `Rc<RefCell<CodeBlock>>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `RefCell<CodeBlock>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `Cell<isize>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `UnsafeCell<isize>`, which has interior mutability
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutable_key_type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: mutable key type
[INFO] [stdout]   --> src/analysis/saferegion.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut set = BlockSet::new();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: ... because it contains `CodeBlockRef`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `Rc<RefCell<CodeBlock>>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `RefCell<CodeBlock>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `Cell<isize>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `UnsafeCell<isize>`, which has interior mutability
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutable_key_type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/analysis/saferegion.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |             return Some(branch.clone())
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 48 -             return Some(branch.clone())
[INFO] [stdout] 48 +             Some(branch.clone())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/analysis/saferegion.rs:50:14
[INFO] [stdout]    |
[INFO] [stdout] 50 |         _ => return None,
[INFO] [stdout]    |              ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 50 -         _ => return None,
[INFO] [stdout] 50 +         _ => None,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `Instruction` which implements the `Copy` trait
[INFO] [stdout]   --> src/analysis/saferegion.rs:45:18
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let branch = block.borrow().instructions.last().unwrap().clone();
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*block.borrow().instructions.last().unwrap()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout]    = note: `#[warn(clippy::clone_on_copy)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: mutable key type
[INFO] [stdout]    --> src/analysis/hammockgraph.rs:198:9
[INFO] [stdout]     |
[INFO] [stdout] 198 |         let mut unvisited = BlockToHammockMap::new();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: ... because it contains `CodeBlockRef`, which has interior mutability
[INFO] [stdout]     = note: ... because it contains `Rc<RefCell<CodeBlock>>`, which has interior mutability
[INFO] [stdout]     = note: ... because it contains `RefCell<CodeBlock>`, which has interior mutability
[INFO] [stdout]     = note: ... because it contains `Cell<isize>`, which has interior mutability
[INFO] [stdout]     = note: ... because it contains `UnsafeCell<isize>`, which has interior mutability
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutable_key_type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `Instruction` which implements the `Copy` trait
[INFO] [stdout]   --> src/analysis/saferegion.rs:48:25
[INFO] [stdout]    |
[INFO] [stdout] 48 |             return Some(branch.clone())
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^ help: try removing the `clone` call: `branch`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: mutable key type
[INFO] [stdout]   --> src/analysis/saferegion.rs:70:6
[INFO] [stdout]    |
[INFO] [stdout] 70 | ) -> BlockSet {
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: ... because it contains `CodeBlockRef`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `Rc<RefCell<CodeBlock>>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `RefCell<CodeBlock>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `Cell<isize>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `UnsafeCell<isize>`, which has interior mutability
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutable_key_type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you should consider adding a `Default` implementation for `PostDominatorTree`
[INFO] [stdout]   --> src/analysis/postdom.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     pub fn new() -> Self {
[INFO] [stdout] 17 | |         Self {
[INFO] [stdout] 18 | |             blocks: vec![],
[INFO] [stdout] 19 | |             p_dom: vec![],
[INFO] [stdout] ...  |
[INFO] [stdout] 24 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stdout] help: try adding this
[INFO] [stdout]    |
[INFO] [stdout] 15 + impl Default for PostDominatorTree {
[INFO] [stdout] 16 +     fn default() -> Self {
[INFO] [stdout] 17 +         Self::new()
[INFO] [stdout] 18 +     }
[INFO] [stdout] 19 + }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: mutable key type
[INFO] [stdout]   --> src/analysis/saferegion.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let mut set = BlockSet::new();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: ... because it contains `CodeBlockRef`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `Rc<RefCell<CodeBlock>>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `RefCell<CodeBlock>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `Cell<isize>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `UnsafeCell<isize>`, which has interior mutability
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutable_key_type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/analysis/postdom.rs:40:16
[INFO] [stdout]    |
[INFO] [stdout] 40 |             if !(start_id != next_id && !dominates) {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `start_id == next_id || dominates`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `impl` can be derived
[INFO] [stdout]   --> src/block.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | / impl Default for EdgeType {
[INFO] [stdout] 15 | |     fn default() -> Self {
[INFO] [stdout] 16 | |         Self::Invalid
[INFO] [stdout] 17 | |     }
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#derivable_impls
[INFO] [stdout]    = note: `#[warn(clippy::derivable_impls)]` on by default
[INFO] [stdout] help: replace the manual implementation with a derive attribute and mark the default variant
[INFO] [stdout]    |
[INFO] [stdout]  7 + #[derive(Default)]
[INFO] [stdout]  8 | pub enum EdgeType {
[INFO] [stdout]  9 |     Branch,
[INFO] [stdout] 10 |     FallThrough,
[INFO] [stdout] 11 |     Dummy,
[INFO] [stdout] 12 ~     #[default]
[INFO] [stdout] 13 ~     Invalid,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the variable `i` is used as a loop counter
[INFO] [stdout]   --> src/analysis/postdom.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         for block in post_order.iter() {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (i, block) in post_order.iter().enumerate()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_counter_loop
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]    --> src/analysis/postdom.rs:100:17
[INFO] [stdout]     |
[INFO] [stdout] 100 | /                 if processed {
[INFO] [stdout] 101 | |                     if self.p_dom[b_ind] != new_pdom {
[INFO] [stdout] 102 | |                         self.p_dom[b_ind] = new_pdom;
[INFO] [stdout] 103 | |                         changed = true;
[INFO] [stdout] 104 | |                     }
[INFO] [stdout] 105 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 100 ~                 if processed
[INFO] [stdout] 101 ~                     && self.p_dom[b_ind] != new_pdom {
[INFO] [stdout] 102 |                         self.p_dom[b_ind] = new_pdom;
[INFO] [stdout] 103 |                         changed = true;
[INFO] [stdout] 104 ~                     }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/block.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         self.children.len() == 0
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.children.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: mutable key type
[INFO] [stdout]   --> src/analysis/saferegion.rs:24:65
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn get_blocks_with_backward_branches(ca: &CycleAnalysis) -> BlockSet {
[INFO] [stdout]    |                                                                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: ... because it contains `CodeBlockRef`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `Rc<RefCell<CodeBlock>>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `RefCell<CodeBlock>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `Cell<isize>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `UnsafeCell<isize>`, which has interior mutability
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutable_key_type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: mutable key type
[INFO] [stdout]   --> src/analysis/saferegion.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut set = BlockSet::new();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: ... because it contains `CodeBlockRef`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `Rc<RefCell<CodeBlock>>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `RefCell<CodeBlock>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `Cell<isize>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `UnsafeCell<isize>`, which has interior mutability
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutable_key_type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/analysis/saferegion.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |             return Some(branch.clone())
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 48 -             return Some(branch.clone())
[INFO] [stdout] 48 +             Some(branch.clone())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/analysis/saferegion.rs:50:14
[INFO] [stdout]    |
[INFO] [stdout] 50 |         _ => return None,
[INFO] [stdout]    |              ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 50 -         _ => return None,
[INFO] [stdout] 50 +         _ => None,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `Instruction` which implements the `Copy` trait
[INFO] [stdout]   --> src/analysis/saferegion.rs:45:18
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let branch = block.borrow().instructions.last().unwrap().clone();
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*block.borrow().instructions.last().unwrap()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout]    = note: `#[warn(clippy::clone_on_copy)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field assignment outside of initializer for an instance created with Default::default()
[INFO] [stdout]   --> src/cfg.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |         new_block.instructions = block.borrow().instructions.clone();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: consider initializing the variable with `block::CodeBlock { instructions: block.borrow().instructions.clone(), id: id, ..Default::default() }` and removing relevant reassignments
[INFO] [stdout]   --> src/cfg.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let mut new_block = CodeBlock::default();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#field_reassign_with_default
[INFO] [stdout]    = note: `#[warn(clippy::field_reassign_with_default)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `Instruction` which implements the `Copy` trait
[INFO] [stdout]   --> src/analysis/saferegion.rs:48:25
[INFO] [stdout]    |
[INFO] [stdout] 48 |             return Some(branch.clone())
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^ help: try removing the `clone` call: `branch`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: mutable key type
[INFO] [stdout]   --> src/analysis/saferegion.rs:70:6
[INFO] [stdout]    |
[INFO] [stdout] 70 | ) -> BlockSet {
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: ... because it contains `CodeBlockRef`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `Rc<RefCell<CodeBlock>>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `RefCell<CodeBlock>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `Cell<isize>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `UnsafeCell<isize>`, which has interior mutability
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutable_key_type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: mutable key type
[INFO] [stdout]   --> src/analysis/saferegion.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let mut set = BlockSet::new();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: ... because it contains `CodeBlockRef`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `Rc<RefCell<CodeBlock>>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `RefCell<CodeBlock>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `Cell<isize>`, which has interior mutability
[INFO] [stdout]    = note: ... because it contains `UnsafeCell<isize>`, which has interior mutability
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutable_key_type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `impl` can be derived
[INFO] [stdout]   --> src/block.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | / impl Default for EdgeType {
[INFO] [stdout] 15 | |     fn default() -> Self {
[INFO] [stdout] 16 | |         Self::Invalid
[INFO] [stdout] 17 | |     }
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#derivable_impls
[INFO] [stdout]    = note: `#[warn(clippy::derivable_impls)]` on by default
[INFO] [stdout] help: replace the manual implementation with a derive attribute and mark the default variant
[INFO] [stdout]    |
[INFO] [stdout]  7 + #[derive(Default)]
[INFO] [stdout]  8 | pub enum EdgeType {
[INFO] [stdout]  9 |     Branch,
[INFO] [stdout] 10 |     FallThrough,
[INFO] [stdout] 11 |     Dummy,
[INFO] [stdout] 12 ~     #[default]
[INFO] [stdout] 13 ~     Invalid,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct update has no effect, all the fields in the struct have already been specified
[INFO] [stdout]    --> src/cfg.rs:234:15
[INFO] [stdout]     |
[INFO] [stdout] 234 |             ..Default::default()
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_update
[INFO] [stdout]     = note: `#[warn(clippy::needless_update)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct update has no effect, all the fields in the struct have already been specified
[INFO] [stdout]    --> src/cfg.rs:240:15
[INFO] [stdout]     |
[INFO] [stdout] 240 |             ..Default::default()
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_update
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: mutable key type
[INFO] [stdout]    --> src/cfg.rs:247:9
[INFO] [stdout]     |
[INFO] [stdout] 247 |         let mut visited: BlockSet = BlockSet::new();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: ... because it contains `CodeBlockRef`, which has interior mutability
[INFO] [stdout]     = note: ... because it contains `Rc<RefCell<CodeBlock>>`, which has interior mutability
[INFO] [stdout]     = note: ... because it contains `RefCell<CodeBlock>`, which has interior mutability
[INFO] [stdout]     = note: ... because it contains `Cell<isize>`, which has interior mutability
[INFO] [stdout]     = note: ... because it contains `UnsafeCell<isize>`, which has interior mutability
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutable_key_type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/block.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         self.children.len() == 0
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.children.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: mutable key type
[INFO] [stdout]    --> src/cfg.rs:300:9
[INFO] [stdout]     |
[INFO] [stdout] 300 |         let mut visited: BlockSet = BlockSet::new();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: ... because it contains `CodeBlockRef`, which has interior mutability
[INFO] [stdout]     = note: ... because it contains `Rc<RefCell<CodeBlock>>`, which has interior mutability
[INFO] [stdout]     = note: ... because it contains `RefCell<CodeBlock>`, which has interior mutability
[INFO] [stdout]     = note: ... because it contains `Cell<isize>`, which has interior mutability
[INFO] [stdout]     = note: ... because it contains `UnsafeCell<isize>`, which has interior mutability
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutable_key_type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field assignment outside of initializer for an instance created with Default::default()
[INFO] [stdout]   --> src/cfg.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |         new_block.instructions = block.borrow().instructions.clone();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: consider initializing the variable with `block::CodeBlock { instructions: block.borrow().instructions.clone(), id: id, ..Default::default() }` and removing relevant reassignments
[INFO] [stdout]   --> src/cfg.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let mut new_block = CodeBlock::default();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#field_reassign_with_default
[INFO] [stdout]    = note: `#[warn(clippy::field_reassign_with_default)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct update has no effect, all the fields in the struct have already been specified
[INFO] [stdout]    --> src/cfg.rs:234:15
[INFO] [stdout]     |
[INFO] [stdout] 234 |             ..Default::default()
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_update
[INFO] [stdout]     = note: `#[warn(clippy::needless_update)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct update has no effect, all the fields in the struct have already been specified
[INFO] [stdout]    --> src/cfg.rs:240:15
[INFO] [stdout]     |
[INFO] [stdout] 240 |             ..Default::default()
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_update
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: mutable key type
[INFO] [stdout]    --> src/cfg.rs:247:9
[INFO] [stdout]     |
[INFO] [stdout] 247 |         let mut visited: BlockSet = BlockSet::new();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: ... because it contains `CodeBlockRef`, which has interior mutability
[INFO] [stdout]     = note: ... because it contains `Rc<RefCell<CodeBlock>>`, which has interior mutability
[INFO] [stdout]     = note: ... because it contains `RefCell<CodeBlock>`, which has interior mutability
[INFO] [stdout]     = note: ... because it contains `Cell<isize>`, which has interior mutability
[INFO] [stdout]     = note: ... because it contains `UnsafeCell<isize>`, which has interior mutability
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutable_key_type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]   --> src/instructions.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 | /         match self {
[INFO] [stdout] 39 | |             StEnv(_) | StField | StLocal(_) | StStatic(_) | LdEnv(_) | LdField | LdGlobal(_)
[INFO] [stdout] 40 | |             | LdLocal(_) | LdStatic(_) => true,
[INFO] [stdout] 41 | |             _ => false,
[INFO] [stdout] 42 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout]    = note: `#[warn(clippy::match_like_matches_macro)]` on by default
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]    |
[INFO] [stdout] 38 ~         matches!(self, StEnv(_) | StField | StLocal(_) | StStatic(_) | LdEnv(_) | LdField | LdGlobal(_)
[INFO] [stdout] 39 +             | LdLocal(_) | LdStatic(_))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: mutable key type
[INFO] [stdout]    --> src/cfg.rs:300:9
[INFO] [stdout]     |
[INFO] [stdout] 300 |         let mut visited: BlockSet = BlockSet::new();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: ... because it contains `CodeBlockRef`, which has interior mutability
[INFO] [stdout]     = note: ... because it contains `Rc<RefCell<CodeBlock>>`, which has interior mutability
[INFO] [stdout]     = note: ... because it contains `RefCell<CodeBlock>`, which has interior mutability
[INFO] [stdout]     = note: ... because it contains `Cell<isize>`, which has interior mutability
[INFO] [stdout]     = note: ... because it contains `UnsafeCell<isize>`, which has interior mutability
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mutable_key_type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]   --> src/instructions.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 | /         match self {
[INFO] [stdout] 39 | |             StEnv(_) | StField | StLocal(_) | StStatic(_) | LdEnv(_) | LdField | LdGlobal(_)
[INFO] [stdout] 40 | |             | LdLocal(_) | LdStatic(_) => true,
[INFO] [stdout] 41 | |             _ => false,
[INFO] [stdout] 42 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout]    = note: `#[warn(clippy::match_like_matches_macro)]` on by default
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]    |
[INFO] [stdout] 38 ~         matches!(self, StEnv(_) | StField | StLocal(_) | StStatic(_) | LdEnv(_) | LdField | LdGlobal(_)
[INFO] [stdout] 39 +             | LdLocal(_) | LdStatic(_))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut b2 = cfg.insert_block(CodeBlockRef::new(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: field assignment outside of initializer for an instance created with Default::default()
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     block.id = cfg.new_id();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: consider initializing the variable with `runtime::block::CodeBlock { id: cfg.new_id(), ..Default::default() }` and removing relevant reassignments
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut block: CodeBlock = CodeBlock::default();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#field_reassign_with_default
[INFO] [stdout]    = note: `#[warn(clippy::field_reassign_with_default)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field assignment outside of initializer for an instance created with Default::default()
[INFO] [stdout]   --> src/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     block.id = cfg.new_id();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: consider initializing the variable with `runtime::block::CodeBlock { id: cfg.new_id(), ..Default::default() }` and removing relevant reassignments
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let mut block: CodeBlock = CodeBlock::default();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#field_reassign_with_default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct update has no effect, all the fields in the struct have already been specified
[INFO] [stdout]   --> src/main.rs:27:11
[INFO] [stdout]    |
[INFO] [stdout] 27 |         ..Default::default()
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_update
[INFO] [stdout]    = note: `#[warn(clippy::needless_update)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut b2 = cfg.insert_block(CodeBlockRef::new(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: field assignment outside of initializer for an instance created with Default::default()
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     block.id = cfg.new_id();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: consider initializing the variable with `runtime::block::CodeBlock { id: cfg.new_id(), ..Default::default() }` and removing relevant reassignments
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut block: CodeBlock = CodeBlock::default();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#field_reassign_with_default
[INFO] [stdout]    = note: `#[warn(clippy::field_reassign_with_default)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field assignment outside of initializer for an instance created with Default::default()
[INFO] [stdout]   --> src/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     block.id = cfg.new_id();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: consider initializing the variable with `runtime::block::CodeBlock { id: cfg.new_id(), ..Default::default() }` and removing relevant reassignments
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let mut block: CodeBlock = CodeBlock::default();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#field_reassign_with_default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct update has no effect, all the fields in the struct have already been specified
[INFO] [stdout]   --> src/main.rs:27:11
[INFO] [stdout]    |
[INFO] [stdout] 27 |         ..Default::default()
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_update
[INFO] [stdout]    = note: `#[warn(clippy::needless_update)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "26a5c6f4be6a5319ea624ac21e19d1640959a29e29e64e762df403c52dfb4b7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26a5c6f4be6a5319ea624ac21e19d1640959a29e29e64e762df403c52dfb4b7c", kill_on_drop: false }`
[INFO] [stdout] 26a5c6f4be6a5319ea624ac21e19d1640959a29e29e64e762df403c52dfb4b7c