[INFO] cloning repository https://github.com/Tamiyo/Pineapple
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Tamiyo/Pineapple" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTamiyo%2FPineapple", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTamiyo%2FPineapple'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8bc1988fe580e83152aa40038ce6a3afc18fde3a
[INFO] checking Tamiyo/Pineapple against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTamiyo%2FPineapple" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Tamiyo/Pineapple on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Tamiyo/Pineapple
[INFO] finished tweaking git repo https://github.com/Tamiyo/Pineapple
[INFO] tweaked toml for git repo https://github.com/Tamiyo/Pineapple written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/Tamiyo/Pineapple already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dee92e42310824a38a8ee63d78389687d14ad6a3e0b85c6cb445996113296457
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "dee92e42310824a38a8ee63d78389687d14ad6a3e0b85c6cb445996113296457", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dee92e42310824a38a8ee63d78389687d14ad6a3e0b85c6cb445996113296457", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dee92e42310824a38a8ee63d78389687d14ad6a3e0b85c6cb445996113296457", kill_on_drop: false }`
[INFO] [stdout] dee92e42310824a38a8ee63d78389687d14ad6a3e0b85c6cb445996113296457
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bbd45735c8cc166ead1861c96d991d43f639b605adc99c77e1fd170b2d58be92
[INFO] running `Command { std: "docker" "start" "-a" "bbd45735c8cc166ead1861c96d991d43f639b605adc99c77e1fd170b2d58be92", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling indexmap v1.5.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling derive_more v0.99.9
[INFO] [stderr]    Compiling structopt-derive v0.4.8
[INFO] [stderr]     Checking structopt v0.3.15
[INFO] [stderr]     Checking pineapple v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Expr`
[INFO] [stdout]  --> src/compiler/flowgraph/cfg.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::compiler::ir::{Expr, Oper};
[INFO] [stdout]   |                           ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `indexmap::IndexSet`
[INFO] [stdout]  --> src/compiler/flowgraph/cfg.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use indexmap::IndexSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::compiler::flowgraph::cfg::CFG`
[INFO] [stdout]  --> src/compiler/optimizer/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::compiler::flowgraph::cfg::CFG;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Expr`, `Oper`, `bytecode::constant::Constant`
[INFO] [stdout]  --> src/compiler/optimizer/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     bytecode::constant::Constant,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 4 |     compiler::ir::{Expr, Oper, Stmt},
[INFO] [stdout]   |                    ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/main.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Expr`
[INFO] [stdout]  --> src/compiler/flowgraph/cfg.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::compiler::ir::{Expr, Oper};
[INFO] [stdout]   |                           ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `indexmap::IndexSet`
[INFO] [stdout]  --> src/compiler/flowgraph/cfg.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use indexmap::IndexSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::compiler::flowgraph::cfg::CFG`
[INFO] [stdout]  --> src/compiler/optimizer/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::compiler::flowgraph::cfg::CFG;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Expr`, `Oper`, `bytecode::constant::Constant`
[INFO] [stdout]  --> src/compiler/optimizer/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     bytecode::constant::Constant,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 4 |     compiler::ir::{Expr, Oper, Stmt},
[INFO] [stdout]   |                    ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/main.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bytecode/constant.rs:108:13
[INFO] [stdout]     |
[INFO] [stdout] 108 |             _ => unimplemented!(),
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/compiler/mod.rs:157:17
[INFO] [stdout]     |
[INFO] [stdout] 157 |                 _ => unimplemented!(),
[INFO] [stdout]     |                 ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/compiler/ir/mod.rs:192:13
[INFO] [stdout]     |
[INFO] [stdout] 192 |             _ => vec![],
[INFO] [stdout]     |             ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/compiler/ir/mod.rs:219:13
[INFO] [stdout]     |
[INFO] [stdout] 219 |             _ => false,
[INFO] [stdout]     |             ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/compiler/ir/mod.rs:276:13
[INFO] [stdout]     |
[INFO] [stdout] 276 |             _ => unimplemented!(),
[INFO] [stdout]     |             ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/vm/mod.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 71 |             _ => unimplemented!(),
[INFO] [stdout]    |             ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]   --> src/compiler/flowgraph/cfg.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |         i += 1;
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `state.register` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/compiler/register_allocation/mod.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let spilled = state.register.get(&spill.oper).unwrap();
[INFO] [stdout]     |                       -------------- immutable borrow occurs here
[INFO] [stdout] 115 |         state.register.insert(i.oper, *spilled);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^                -------- immutable borrow later used here
[INFO] [stdout]     |         |
[INFO] [stdout]     |         mutable borrow occurs here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bytecode/constant.rs:108:13
[INFO] [stdout]     |
[INFO] [stdout] 108 |             _ => unimplemented!(),
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/compiler/mod.rs:157:17
[INFO] [stdout]     |
[INFO] [stdout] 157 |                 _ => unimplemented!(),
[INFO] [stdout]     |                 ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/compiler/ir/mod.rs:192:13
[INFO] [stdout]     |
[INFO] [stdout] 192 |             _ => vec![],
[INFO] [stdout]     |             ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/compiler/ir/mod.rs:219:13
[INFO] [stdout]     |
[INFO] [stdout] 219 |             _ => false,
[INFO] [stdout]     |             ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/compiler/ir/mod.rs:276:13
[INFO] [stdout]     |
[INFO] [stdout] 276 |             _ => unimplemented!(),
[INFO] [stdout]     |             ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/vm/mod.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 71 |             _ => unimplemented!(),
[INFO] [stdout]    |             ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]   --> src/compiler/flowgraph/cfg.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |         i += 1;
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BF`
[INFO] [stdout]   --> src/bytecode/mod.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     BF(IR, Label), // Banch if false
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `BlockIndex`
[INFO] [stdout]   --> src/compiler/flowgraph/cfg.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | type BlockIndex = usize;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/compiler/flowgraph/cfg.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `jump`
[INFO] [stdout]   --> src/compiler/flowgraph/cfg.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn jump(&self) -> Option<usize> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `as_conventional_ssa`
[INFO] [stdout]    --> src/compiler/ir/ssa.rs:182:4
[INFO] [stdout]     |
[INFO] [stdout] 182 | fn as_conventional_ssa(cfg: &mut CFG) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `remove_empty_parallel_copies`
[INFO] [stdout]    --> src/compiler/ir/ssa.rs:235:4
[INFO] [stdout]     |
[INFO] [stdout] 235 | fn remove_empty_parallel_copies(cfg: &mut CFG) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NamedLabel`
[INFO] [stdout]   --> src/compiler/ir/mod.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     NamedLabel(Label),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ParallelCopy`
[INFO] [stdout]   --> src/compiler/ir/mod.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     ParallelCopy,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `patch_phi`
[INFO] [stdout]    --> src/compiler/ir/mod.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |     pub fn patch_phi(&mut self, x: &Oper) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Statement`
[INFO] [stdout]  --> src/compiler/optimizer/mod.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | type Statement = Rc<RefCell<Stmt>>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Node`
[INFO] [stdout]  --> src/util/tree.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Node<T> {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/util/tree.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new(inner: T) -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_child`
[INFO] [stdout]   --> src/util/tree.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn add_child(&mut self, child: T) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Tree`
[INFO] [stdout]   --> src/util/tree.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct Tree<T> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_in_between`
[INFO] [stdout]   --> src/util/graph.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn insert_in_between(&mut self, a: &T, b: &T, c: &T) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/util/graph.rs:106:12
[INFO] [stdout]     |
[INFO] [stdout] 106 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `PCi` should have a snake case name
[INFO] [stdout]    --> src/compiler/ir/ssa.rs:195:29
[INFO] [stdout]     |
[INFO] [stdout] 195 |                         let PCi = cfg.blocks[*bi].statements.last().unwrap();
[INFO] [stdout]     |                             ^^^ help: convert the identifier to snake case: `pci`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `PC0` should have a snake case name
[INFO] [stdout]    --> src/compiler/ir/ssa.rs:207:25
[INFO] [stdout]     |
[INFO] [stdout] 207 |                     let PC0 = b0.statements.first().unwrap();
[INFO] [stdout]     |                         ^^^ help: convert the identifier to snake case: `pc0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 31 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `state.register` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/compiler/register_allocation/mod.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let spilled = state.register.get(&spill.oper).unwrap();
[INFO] [stdout]     |                       -------------- immutable borrow occurs here
[INFO] [stdout] 115 |         state.register.insert(i.oper, *spilled);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^                -------- immutable borrow later used here
[INFO] [stdout]     |         |
[INFO] [stdout]     |         mutable borrow occurs here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BF`
[INFO] [stdout]   --> src/bytecode/mod.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     BF(IR, Label), // Banch if false
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `BlockIndex`
[INFO] [stdout]   --> src/compiler/flowgraph/cfg.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | type BlockIndex = usize;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/compiler/flowgraph/cfg.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `jump`
[INFO] [stdout]   --> src/compiler/flowgraph/cfg.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn jump(&self) -> Option<usize> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `as_conventional_ssa`
[INFO] [stdout]    --> src/compiler/ir/ssa.rs:182:4
[INFO] [stdout]     |
[INFO] [stdout] 182 | fn as_conventional_ssa(cfg: &mut CFG) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `remove_empty_parallel_copies`
[INFO] [stdout]    --> src/compiler/ir/ssa.rs:235:4
[INFO] [stdout]     |
[INFO] [stdout] 235 | fn remove_empty_parallel_copies(cfg: &mut CFG) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NamedLabel`
[INFO] [stdout]   --> src/compiler/ir/mod.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     NamedLabel(Label),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ParallelCopy`
[INFO] [stdout]   --> src/compiler/ir/mod.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     ParallelCopy,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `patch_phi`
[INFO] [stdout]    --> src/compiler/ir/mod.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |     pub fn patch_phi(&mut self, x: &Oper) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Statement`
[INFO] [stdout]  --> src/compiler/optimizer/mod.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | type Statement = Rc<RefCell<Stmt>>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Node`
[INFO] [stdout]  --> src/util/tree.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Node<T> {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/util/tree.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new(inner: T) -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_child`
[INFO] [stdout]   --> src/util/tree.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn add_child(&mut self, child: T) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Tree`
[INFO] [stdout]   --> src/util/tree.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct Tree<T> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_in_between`
[INFO] [stdout]   --> src/util/graph.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn insert_in_between(&mut self, a: &T, b: &T, c: &T) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/util/graph.rs:106:12
[INFO] [stdout]     |
[INFO] [stdout] 106 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `PCi` should have a snake case name
[INFO] [stdout]    --> src/compiler/ir/ssa.rs:195:29
[INFO] [stdout]     |
[INFO] [stdout] 195 |                         let PCi = cfg.blocks[*bi].statements.last().unwrap();
[INFO] [stdout]     |                             ^^^ help: convert the identifier to snake case: `pci`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `PC0` should have a snake case name
[INFO] [stdout]    --> src/compiler/ir/ssa.rs:207:25
[INFO] [stdout]     |
[INFO] [stdout] 207 |                     let PC0 = b0.statements.first().unwrap();
[INFO] [stdout]     |                         ^^^ help: convert the identifier to snake case: `pc0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 31 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.10s
[INFO] running `Command { std: "docker" "inspect" "bbd45735c8cc166ead1861c96d991d43f639b605adc99c77e1fd170b2d58be92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbd45735c8cc166ead1861c96d991d43f639b605adc99c77e1fd170b2d58be92", kill_on_drop: false }`
[INFO] [stdout] bbd45735c8cc166ead1861c96d991d43f639b605adc99c77e1fd170b2d58be92