[INFO] cloning repository https://github.com/yelhsams/thesis
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yelhsams/thesis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyelhsams%2Fthesis", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyelhsams%2Fthesis'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a510c33380b1b6eceba1f7094c371b479fb704ac
[INFO] checking yelhsams/thesis against master#c9af9c1dc85a55e309345030ff9cb7ea247953fa for pr-151146-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyelhsams%2Fthesis" "/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/yelhsams/thesis
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/yelhsams/thesis
[INFO] tweaked toml for git repo https://github.com/yelhsams/thesis written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/yelhsams/thesis on toolchain c9af9c1dc85a55e309345030ff9cb7ea247953fa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c9af9c1dc85a55e309345030ff9cb7ea247953fa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/yelhsams/thesis 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" "+c9af9c1dc85a55e309345030ff9cb7ea247953fa" "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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+c9af9c1dc85a55e309345030ff9cb7ea247953fa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5603f13e225f0f58516807e1adf3b3d7127ab16c7dcfd66fc2c75f9d81a6ce7a
[INFO] running `Command { std: "docker" "start" "-a" "5603f13e225f0f58516807e1adf3b3d7127ab16c7dcfd66fc2c75f9d81a6ce7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5603f13e225f0f58516807e1adf3b3d7127ab16c7dcfd66fc2c75f9d81a6ce7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5603f13e225f0f58516807e1adf3b3d7127ab16c7dcfd66fc2c75f9d81a6ce7a", kill_on_drop: false }`
[INFO] [stdout] 5603f13e225f0f58516807e1adf3b3d7127ab16c7dcfd66fc2c75f9d81a6ce7a
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+c9af9c1dc85a55e309345030ff9cb7ea247953fa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 169ac823b9ad33e5628907bcbf607dee74094b39f36d3f90562b0918e122193b
[INFO] running `Command { std: "docker" "start" "-a" "169ac823b9ad33e5628907bcbf607dee74094b39f36d3f90562b0918e122193b", kill_on_drop: false }`
[INFO] [stderr]     Checking thesis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::elaborate::*`
[INFO] [stdout]  --> src/example.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::elaborate::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous glob re-exports
[INFO] [stdout]   --> src/lib.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub use context_test_cases::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^ the name `example_strength_reduction` in the value namespace is first re-exported here
[INFO] [stdout] ...
[INFO] [stdout] 20 | pub use pattern_examples::*;
[INFO] [stdout]    |         ------------------- but the name `example_strength_reduction` in the value namespace is also re-exported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ambiguous_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::elaborate::*`
[INFO] [stdout]  --> src/example.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::elaborate::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous glob re-exports
[INFO] [stdout]   --> src/lib.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub use context_test_cases::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^ the name `example_strength_reduction` in the value namespace is first re-exported here
[INFO] [stdout] ...
[INFO] [stdout] 20 | pub use pattern_examples::*;
[INFO] [stdout]    |         ------------------- but the name `example_strength_reduction` in the value namespace is also re-exported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ambiguous_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `opcode` is assigned to, but never used
[INFO] [stdout]    --> src/clif_parser.rs:201:13
[INFO] [stdout]     |
[INFO] [stdout] 201 |         let mut opcode = self.parse_opcode(&opcode_str)?;
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_opcode` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `opcode` is never read
[INFO] [stdout]    --> src/clif_parser.rs:209:17
[INFO] [stdout]     |
[INFO] [stdout] 209 |                 opcode = self.parse_comparison_condition(&cond_str)?;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dfg`
[INFO] [stdout]    --> src/clif_parser.rs:253:9
[INFO] [stdout]     |
[INFO] [stdout] 253 |         dfg: &DataFlowGraph,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_dfg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/pattern.rs:671:38
[INFO] [stdout]     |
[INFO] [stdout] 671 |                         if let (Some(a), Some(b)) = (
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/pattern.rs:671:47
[INFO] [stdout]     |
[INFO] [stdout] 671 |                         if let (Some(a), Some(b)) = (
[INFO] [stdout]     |                                               ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `custom_rule`
[INFO] [stdout]   --> src/pattern_examples.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 |     let custom_rule = Rewrite::new("and-with-minus-one")
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_custom_rule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `power_of_two_rule`
[INFO] [stdout]   --> src/pattern_examples.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let power_of_two_rule = Rewrite::new("mul-power-of-two")
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_power_of_two_rule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/pattern_examples.rs:179:9
[INFO] [stdout]     |
[INFO] [stdout] 179 |     let c = dfg.make_inst_result(add_id, Type::I32);
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fold_rule`
[INFO] [stdout]    --> src/pattern_examples.rs:186:9
[INFO] [stdout]     |
[INFO] [stdout] 186 |     let fold_rule = Rewrite::new("fold-add-constants")
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fold_rule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nested_rule`
[INFO] [stdout]    --> src/pattern_examples.rs:208:9
[INFO] [stdout]     |
[INFO] [stdout] 208 |     let nested_rule = Rewrite::new("nested-simplify")
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_nested_rule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `distributive`
[INFO] [stdout]    --> src/pattern_examples.rs:224:9
[INFO] [stdout]     |
[INFO] [stdout] 224 |     let distributive = Rewrite::new("distributive")
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_distributive`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `add_zero_rule`
[INFO] [stdout]    --> src/pattern_examples.rs:251:9
[INFO] [stdout]     |
[INFO] [stdout] 251 |     let add_zero_rule = Rewrite::new("add-zero-either-side")
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_add_zero_rule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `strength_reduce`
[INFO] [stdout]    --> src/pattern_examples.rs:274:9
[INFO] [stdout]     |
[INFO] [stdout] 274 |     let strength_reduce = Rewrite::new("strength-reduce-large-mul")
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_strength_reduce`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inst_id`
[INFO] [stdout]   --> src/rewrite_integration.rs:92:34
[INFO] [stdout]    |
[INFO] [stdout] 92 |                     if let Some((inst_id, ref inst)) = inst_info {
[INFO] [stdout]    |                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_inst_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inst`
[INFO] [stdout]   --> src/rewrite_integration.rs:92:43
[INFO] [stdout]    |
[INFO] [stdout] 92 |                     if let Some((inst_id, ref inst)) = inst_info {
[INFO] [stdout]    |                                           ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_inst`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `opcode` is assigned to, but never used
[INFO] [stdout]    --> src/clif_parser.rs:201:13
[INFO] [stdout]     |
[INFO] [stdout] 201 |         let mut opcode = self.parse_opcode(&opcode_str)?;
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_opcode` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `opcode` is never read
[INFO] [stdout]    --> src/clif_parser.rs:209:17
[INFO] [stdout]     |
[INFO] [stdout] 209 |                 opcode = self.parse_comparison_condition(&cond_str)?;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dfg`
[INFO] [stdout]    --> src/clif_parser.rs:253:9
[INFO] [stdout]     |
[INFO] [stdout] 253 |         dfg: &DataFlowGraph,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_dfg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dfg`
[INFO] [stdout]    --> src/clif_parser.rs:608:14
[INFO] [stdout]     |
[INFO] [stdout] 608 |         let (dfg, layout) = result.unwrap();
[INFO] [stdout]     |              ^^^ help: if this is intentional, prefix it with an underscore: `_dfg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dfg`
[INFO] [stdout]    --> src/clif_parser.rs:636:14
[INFO] [stdout]     |
[INFO] [stdout] 636 |         let (dfg, layout) = result.unwrap();
[INFO] [stdout]     |              ^^^ help: if this is intentional, prefix it with an underscore: `_dfg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `eclass_size` and `remat_values` are never read
[INFO] [stdout]    --> src/egraph_pass.rs:556:5
[INFO] [stdout]     |
[INFO] [stdout] 550 | struct OptimizeCtx<'a> {
[INFO] [stdout]     |        ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 556 |     eclass_size: &'a mut HashMap<ValueId, u8>,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 557 |     remat_values: &'a HashSet<ValueId>,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `domtree` is never read
[INFO] [stdout]   --> src/elaborate.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub struct Elaborator<'a> {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 66 |     dfg: &'a mut DataFlowGraph,
[INFO] [stdout] 67 |     domtree: &'a DominatorTree,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]    --> src/pattern.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout]  96 | #[derive(Debug, Clone, PartialEq)]
[INFO] [stdout]     |                        --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 128 |         check: fn(&Bindings) -> bool,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the address of the same function can vary between different codegen units
[INFO] [stdout]     = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]     = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]     = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/support.rs:167:18
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn entry(&mut self, key: K) -> ScopedEntry<K, V> {
[INFO] [stdout]     |                  ^^^^^^^^^             ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn entry(&mut self, key: K) -> ScopedEntry<'_, K, V> {
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/pattern.rs:671:38
[INFO] [stdout]     |
[INFO] [stdout] 671 |                         if let (Some(a), Some(b)) = (
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/pattern.rs:671:47
[INFO] [stdout]     |
[INFO] [stdout] 671 |                         if let (Some(a), Some(b)) = (
[INFO] [stdout]     |                                               ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `custom_rule`
[INFO] [stdout]   --> src/pattern_examples.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 |     let custom_rule = Rewrite::new("and-with-minus-one")
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_custom_rule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `power_of_two_rule`
[INFO] [stdout]   --> src/pattern_examples.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let power_of_two_rule = Rewrite::new("mul-power-of-two")
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_power_of_two_rule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/pattern_examples.rs:179:9
[INFO] [stdout]     |
[INFO] [stdout] 179 |     let c = dfg.make_inst_result(add_id, Type::I32);
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fold_rule`
[INFO] [stdout]    --> src/pattern_examples.rs:186:9
[INFO] [stdout]     |
[INFO] [stdout] 186 |     let fold_rule = Rewrite::new("fold-add-constants")
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fold_rule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nested_rule`
[INFO] [stdout]    --> src/pattern_examples.rs:208:9
[INFO] [stdout]     |
[INFO] [stdout] 208 |     let nested_rule = Rewrite::new("nested-simplify")
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_nested_rule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `distributive`
[INFO] [stdout]    --> src/pattern_examples.rs:224:9
[INFO] [stdout]     |
[INFO] [stdout] 224 |     let distributive = Rewrite::new("distributive")
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_distributive`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `add_zero_rule`
[INFO] [stdout]    --> src/pattern_examples.rs:251:9
[INFO] [stdout]     |
[INFO] [stdout] 251 |     let add_zero_rule = Rewrite::new("add-zero-either-side")
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_add_zero_rule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `strength_reduce`
[INFO] [stdout]    --> src/pattern_examples.rs:274:9
[INFO] [stdout]     |
[INFO] [stdout] 274 |     let strength_reduce = Rewrite::new("strength-reduce-large-mul")
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_strength_reduce`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inst_id`
[INFO] [stdout]   --> src/rewrite_integration.rs:92:34
[INFO] [stdout]    |
[INFO] [stdout] 92 |                     if let Some((inst_id, ref inst)) = inst_info {
[INFO] [stdout]    |                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_inst_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inst`
[INFO] [stdout]   --> src/rewrite_integration.rs:92:43
[INFO] [stdout]    |
[INFO] [stdout] 92 |                     if let Some((inst_id, ref inst)) = inst_info {
[INFO] [stdout]    |                                           ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_inst`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `eclass_size` and `remat_values` are never read
[INFO] [stdout]    --> src/egraph_pass.rs:556:5
[INFO] [stdout]     |
[INFO] [stdout] 550 | struct OptimizeCtx<'a> {
[INFO] [stdout]     |        ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 556 |     eclass_size: &'a mut HashMap<ValueId, u8>,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 557 |     remat_values: &'a HashSet<ValueId>,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `domtree` is never read
[INFO] [stdout]   --> src/elaborate.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub struct Elaborator<'a> {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 66 |     dfg: &'a mut DataFlowGraph,
[INFO] [stdout] 67 |     domtree: &'a DominatorTree,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]    --> src/pattern.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout]  96 | #[derive(Debug, Clone, PartialEq)]
[INFO] [stdout]     |                        --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 128 |         check: fn(&Bindings) -> bool,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the address of the same function can vary between different codegen units
[INFO] [stdout]     = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]     = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]     = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/support.rs:167:18
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn entry(&mut self, key: K) -> ScopedEntry<K, V> {
[INFO] [stdout]     |                  ^^^^^^^^^             ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn entry(&mut self, key: K) -> ScopedEntry<'_, K, V> {
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "169ac823b9ad33e5628907bcbf607dee74094b39f36d3f90562b0918e122193b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "169ac823b9ad33e5628907bcbf607dee74094b39f36d3f90562b0918e122193b", kill_on_drop: false }`
[INFO] [stdout] 169ac823b9ad33e5628907bcbf607dee74094b39f36d3f90562b0918e122193b
