[INFO] updating cached repository https://github.com/hansihe/beam_code
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 64f05a3f331e5ca9fc19c2501739c248995b9587
[INFO] checking hansihe/beam_code against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhansihe%2Fbeam_code" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hansihe/beam_code on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/hansihe/beam_code
[INFO] finished tweaking git repo https://github.com/hansihe/beam_code
[INFO] tweaked toml for git repo https://github.com/hansihe/beam_code written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/hansihe/beam_code already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] accef88342849c9a0bbf34749998e59bdd44080489e39f8386f471810ce02b74
[INFO] running `"docker" "start" "-a" "accef88342849c9a0bbf34749998e59bdd44080489e39f8386f471810ce02b74"`
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking regex-syntax v0.4.1
[INFO] [stderr]     Checking either v1.1.0
[INFO] [stderr]     Checking num-complex v0.1.38
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking num-bigint v0.1.39
[INFO] [stderr]     Checking libflate v0.1.9
[INFO] [stderr]     Checking string-intern v0.1.6
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking itertools v0.6.0
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]     Checking num-rational v0.1.38
[INFO] [stderr]     Checking beam_file v0.2.2
[INFO] [stderr]     Checking num v0.1.39
[INFO] [stderr]     Checking eetf v0.3.6
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]     Checking beam_code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `::std::rc::Rc`
[INFO] [stderr]  --> src/op.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use ::std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Literal`
[INFO] [stderr]  --> src/ssa/mod.rs:5:52
[INFO] [stderr]   |
[INFO] [stderr] 5 | use ::op::{ Op, LabelId, Register, OpKind, Source, Literal };
[INFO] [stderr]   |                                                    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ssa/mod.rs:493:56
[INFO] [stderr]     |
[INFO] [stderr] 493 | pub fn function_to_dot(function: &SSAFunction, w: &mut Write) -> ::std::io::Result<()> {
[INFO] [stderr]     |                                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `GraphAccessor`
[INFO] [stderr]  --> src/graph/dfs.rs:5:14
[INFO] [stderr]   |
[INFO] [stderr] 5 | use super::{ GraphAccessor, GraphDfs };
[INFO] [stderr]   |              ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graph/mod.rs:14:34
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type GraphAccessor<NodeId> = Fn(NodeId, usize) -> Option<NodeId>;
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(NodeId, usize) -> Option<NodeId>`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::std::rc::Rc`
[INFO] [stderr]  --> src/op.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use ::std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Literal`
[INFO] [stderr]  --> src/ssa/mod.rs:5:52
[INFO] [stderr]   |
[INFO] [stderr] 5 | use ::op::{ Op, LabelId, Register, OpKind, Source, Literal };
[INFO] [stderr]   |                                                    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ssa/mod.rs:493:56
[INFO] [stderr]     |
[INFO] [stderr] 493 | pub fn function_to_dot(function: &SSAFunction, w: &mut Write) -> ::std::io::Result<()> {
[INFO] [stderr]     |                                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `GraphAccessor`
[INFO] [stderr]  --> src/graph/dfs.rs:5:14
[INFO] [stderr]   |
[INFO] [stderr] 5 | use super::{ GraphAccessor, GraphDfs };
[INFO] [stderr]   |              ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graph/mod.rs:14:34
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type GraphAccessor<NodeId> = Fn(NodeId, usize) -> Option<NodeId>;
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(NodeId, usize) -> Option<NodeId>`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `atom_num`
[INFO] [stderr]    --> src/beam_module.rs:218:9
[INFO] [stderr]     |
[INFO] [stderr] 218 |     for atom_num in 0..len {
[INFO] [stderr]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_atom_num`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `atom_num`
[INFO] [stderr]    --> src/beam_module.rs:218:9
[INFO] [stderr]     |
[INFO] [stderr] 218 |     for atom_num in 0..len {
[INFO] [stderr]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_atom_num`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ssa/mod.rs:400:9
[INFO] [stderr]     |
[INFO] [stderr] 400 |     for mut block in fun.blocks.values_mut() {
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ssa/mod.rs:405:13
[INFO] [stderr]     |
[INFO] [stderr] 405 |         for mut op in block.ops.iter_mut() {
[INFO] [stderr]     |             ----^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ssa/mod.rs:400:9
[INFO] [stderr]     |
[INFO] [stderr] 400 |     for mut block in fun.blocks.values_mut() {
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ssa/mod.rs:405:13
[INFO] [stderr]     |
[INFO] [stderr] 405 |         for mut op in block.ops.iter_mut() {
[INFO] [stderr]     |             ----^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `x_reg`
[INFO] [stderr]    --> src/op.rs:687:5
[INFO] [stderr]     |
[INFO] [stderr] 687 |     fn x_reg(num: u32) -> Source {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `GraphAccessor`
[INFO] [stderr]   --> src/graph/mod.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type GraphAccessor<NodeId> = Fn(NodeId, usize) -> Option<NodeId>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `x_reg`
[INFO] [stderr]    --> src/op.rs:687:5
[INFO] [stderr]     |
[INFO] [stderr] 687 |     fn x_reg(num: u32) -> Source {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `GraphAccessor`
[INFO] [stderr]   --> src/graph/mod.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type GraphAccessor<NodeId> = Fn(NodeId, usize) -> Option<NodeId>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::std::rc::Rc`
[INFO] [stderr]  --> src/op.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use ::std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Literal`
[INFO] [stderr]  --> src/ssa/mod.rs:5:52
[INFO] [stderr]   |
[INFO] [stderr] 5 | use ::op::{ Op, LabelId, Register, OpKind, Source, Literal };
[INFO] [stderr]   |                                                    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ssa/mod.rs:493:56
[INFO] [stderr]     |
[INFO] [stderr] 493 | pub fn function_to_dot(function: &SSAFunction, w: &mut Write) -> ::std::io::Result<()> {
[INFO] [stderr]     |                                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `GraphAccessor`
[INFO] [stderr]  --> src/graph/dfs.rs:5:14
[INFO] [stderr]   |
[INFO] [stderr] 5 | use super::{ GraphAccessor, GraphDfs };
[INFO] [stderr]   |              ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graph/mod.rs:14:34
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type GraphAccessor<NodeId> = Fn(NodeId, usize) -> Option<NodeId>;
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(NodeId, usize) -> Option<NodeId>`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::std::rc::Rc`
[INFO] [stderr]  --> src/op.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use ::std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Literal`
[INFO] [stderr]  --> src/ssa/mod.rs:5:52
[INFO] [stderr]   |
[INFO] [stderr] 5 | use ::op::{ Op, LabelId, Register, OpKind, Source, Literal };
[INFO] [stderr]   |                                                    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ssa/mod.rs:493:56
[INFO] [stderr]     |
[INFO] [stderr] 493 | pub fn function_to_dot(function: &SSAFunction, w: &mut Write) -> ::std::io::Result<()> {
[INFO] [stderr]     |                                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `GraphAccessor`
[INFO] [stderr]  --> src/graph/dfs.rs:5:14
[INFO] [stderr]   |
[INFO] [stderr] 5 | use super::{ GraphAccessor, GraphDfs };
[INFO] [stderr]   |              ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graph/mod.rs:14:34
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type GraphAccessor<NodeId> = Fn(NodeId, usize) -> Option<NodeId>;
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(NodeId, usize) -> Option<NodeId>`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `atom_num`
[INFO] [stderr]    --> src/beam_module.rs:218:9
[INFO] [stderr]     |
[INFO] [stderr] 218 |     for atom_num in 0..len {
[INFO] [stderr]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_atom_num`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `atom_num`
[INFO] [stderr]    --> src/beam_module.rs:218:9
[INFO] [stderr]     |
[INFO] [stderr] 218 |     for atom_num in 0..len {
[INFO] [stderr]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_atom_num`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ssa/mod.rs:400:9
[INFO] [stderr]     |
[INFO] [stderr] 400 |     for mut block in fun.blocks.values_mut() {
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ssa/mod.rs:405:13
[INFO] [stderr]     |
[INFO] [stderr] 405 |         for mut op in block.ops.iter_mut() {
[INFO] [stderr]     |             ----^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ssa/mod.rs:400:9
[INFO] [stderr]     |
[INFO] [stderr] 400 |     for mut block in fun.blocks.values_mut() {
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ssa/mod.rs:405:13
[INFO] [stderr]     |
[INFO] [stderr] 405 |         for mut op in block.ops.iter_mut() {
[INFO] [stderr]     |             ----^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_reads_labels`
[INFO] [stderr]   --> src/op.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn with_reads_labels(kind: OpKind, reads: Vec<Source>, labels: Vec<LabelId>) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CaseEnd`
[INFO] [stderr]    --> src/op.rs:156:5
[INFO] [stderr]     |
[INFO] [stderr] 156 |     CaseEnd,
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `x_reg`
[INFO] [stderr]    --> src/op.rs:687:5
[INFO] [stderr]     |
[INFO] [stderr] 687 |     fn x_reg(num: u32) -> Source {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_register`
[INFO] [stderr]    --> src/op.rs:691:5
[INFO] [stderr]     |
[INFO] [stderr] 691 |     pub fn get_register(&self) -> Register {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_register`
[INFO] [stderr]   --> src/ssa/representation.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn get_register(&self) -> SSARegister {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `GraphAccessor`
[INFO] [stderr]   --> src/graph/mod.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type GraphAccessor<NodeId> = Fn(NodeId, usize) -> Option<NodeId>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_reads_labels`
[INFO] [stderr]   --> src/op.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn with_reads_labels(kind: OpKind, reads: Vec<Source>, labels: Vec<LabelId>) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CaseEnd`
[INFO] [stderr]    --> src/op.rs:156:5
[INFO] [stderr]     |
[INFO] [stderr] 156 |     CaseEnd,
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `x_reg`
[INFO] [stderr]    --> src/op.rs:687:5
[INFO] [stderr]     |
[INFO] [stderr] 687 |     fn x_reg(num: u32) -> Source {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_register`
[INFO] [stderr]    --> src/op.rs:691:5
[INFO] [stderr]     |
[INFO] [stderr] 691 |     pub fn get_register(&self) -> Register {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_register`
[INFO] [stderr]   --> src/ssa/representation.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn get_register(&self) -> SSARegister {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `GraphAccessor`
[INFO] [stderr]   --> src/graph/mod.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type GraphAccessor<NodeId> = Fn(NodeId, usize) -> Option<NodeId>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.08s
[INFO] running `"docker" "inspect" "accef88342849c9a0bbf34749998e59bdd44080489e39f8386f471810ce02b74"`
[INFO] running `"docker" "rm" "-f" "accef88342849c9a0bbf34749998e59bdd44080489e39f8386f471810ce02b74"`
[INFO] [stdout] accef88342849c9a0bbf34749998e59bdd44080489e39f8386f471810ce02b74