[INFO] cloning repository https://github.com/fkz/lambda
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fkz/lambda" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffkz%2Flambda", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffkz%2Flambda'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 740df7f54bfbdc8de3c3139a54fc9cde7202cd34
[INFO] checking fkz/lambda against eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffkz%2Flambda" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/fkz/lambda
[INFO] finished tweaking git repo https://github.com/fkz/lambda
[INFO] tweaked toml for git repo https://github.com/fkz/lambda written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/fkz/lambda on toolchain eca445e5ae4a6679cc27d3a09106ce245e13a5a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/fkz/lambda 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" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: unused manifest key: build
[INFO] [stderr] help: build is a valid .cargo/config.toml key
[INFO] [stderr] warning: binary `lambda_calculus` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /workspace/builds/worker-7-tc1/source/target/.../lambda_calculus
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `lambda-calculus`, convert `package.name`
[INFO] [stderr]   --> Cargo.toml:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 - name = "lambda_calculus"
[INFO] [stderr] 31 + name = "lambda-calculus"
[INFO] [stderr]    |
[INFO] [stderr] help: to change the binary name to `lambda-calculus`, specify `bin.name`
[INFO] [stderr]   --> Cargo.toml:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 ~ lto = "fat"
[INFO] [stderr] 38 + [[bin]]
[INFO] [stderr] 39 + name = "lambda-calculus"
[INFO] [stderr] 40 + path = "src/main.rs"
[INFO] [stderr]    |
[INFO] [stderr] warning: `lambda_calculus` (manifest) generated 2 warnings
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap v4.5.1
[INFO] [stderr]   Downloaded criterion-cycles-per-byte v0.6.0
[INFO] [stderr]   Downloaded inferno v0.11.19
[INFO] [stderr]   Downloaded iai v0.1.1
[INFO] [stderr]   Downloaded symbolic-common v12.8.0
[INFO] [stderr]   Downloaded pprof v0.13.0
[INFO] [stderr]   Downloaded clap_builder v4.5.1
[INFO] [stderr]   Downloaded symbolic-demangle v12.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 747b1526ff24f6c41aa449c8d1dc1f40d757e42d8849616cd3f6841917ae2447
[INFO] running `Command { std: "docker" "start" "747b1526ff24f6c41aa449c8d1dc1f40d757e42d8849616cd3f6841917ae2447", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "747b1526ff24f6c41aa449c8d1dc1f40d757e42d8849616cd3f6841917ae2447", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "747b1526ff24f6c41aa449c8d1dc1f40d757e42d8849616cd3f6841917ae2447" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "747b1526ff24f6c41aa449c8d1dc1f40d757e42d8849616cd3f6841917ae2447", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "747b1526ff24f6c41aa449c8d1dc1f40d757e42d8849616cd3f6841917ae2447" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: unused manifest key: build
[INFO] [stderr] help: build is a valid .cargo/config.toml key
[INFO] [stderr] warning: binary `lambda_calculus` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /opt/rustwide/target/.../lambda_calculus
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `lambda-calculus`, convert `package.name`
[INFO] [stderr]   --> Cargo.toml:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 - name = "lambda_calculus"
[INFO] [stderr] 31 + name = "lambda-calculus"
[INFO] [stderr]    |
[INFO] [stderr] help: to change the binary name to `lambda-calculus`, specify `bin.name`
[INFO] [stderr]   --> Cargo.toml:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 ~ lto = "fat"
[INFO] [stderr] 38 + [[bin]]
[INFO] [stderr] 39 + name = "lambda-calculus"
[INFO] [stderr] 40 + path = "src/main.rs"
[INFO] [stderr]    |
[INFO] [stderr] warning: `lambda_calculus` (manifest) generated 2 warnings
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking half v2.4.0
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking plotters-backend v0.3.5
[INFO] [stderr]     Checking clap_builder v4.5.1
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking plotters-svg v0.3.5
[INFO] [stderr]    Compiling cc v1.0.88
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]     Checking rayon v1.9.0
[INFO] [stderr]    Compiling ahash v0.8.10
[INFO] [stderr]     Checking uuid v1.7.0
[INFO] [stderr]     Checking is-terminal v0.4.12
[INFO] [stderr]    Compiling rustix v0.38.31
[INFO] [stderr]    Compiling cpp_demangle v0.4.3
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking clap v4.5.1
[INFO] [stderr]     Checking debugid v0.8.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking memmap2 v0.9.4
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling findshlibs v0.10.2
[INFO] [stderr]    Compiling symbolic-demangle v12.8.0
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking bytemuck v1.14.3
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking rgb v0.8.37
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]     Checking indexmap v2.2.5
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking num-format v0.4.4
[INFO] [stderr]     Checking symbolic-common v12.8.0
[INFO] [stderr]     Checking quick-xml v0.26.0
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking fastrand v2.0.1
[INFO] [stderr]    Compiling pprof v0.13.0
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking str_stack v0.1.0
[INFO] [stderr]     Checking inferno v0.11.19
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking iai v0.1.1
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stderr]     Checking criterion-cycles-per-byte v0.6.0
[INFO] [stderr]     Checking lambda_calculus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Cell`, `UnsafeCell`, `marker::PhantomData`, and `os::raw::c_void`
[INFO] [stdout]  --> src/gc_mem.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 |     cell::{Cell, UnsafeCell},
[INFO] [stdout]   |            ^^^^  ^^^^^^^^^^
[INFO] [stdout] 3 |     marker::PhantomData,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 4 |     os::raw::c_void,
[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 imports: `Cell` and `Ref`
[INFO] [stdout]    --> src/gc_mem.rs:107:16
[INFO] [stdout]     |
[INFO] [stdout] 107 |         cell::{Cell, Ref, RefCell, UnsafeCell},
[INFO] [stdout]     |                ^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl u32>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/gc_mem.rs:311:29
[INFO] [stdout]     |
[INFO] [stdout] 311 |                 value: u32::max_value(),
[INFO] [stdout]     |                             ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl u32>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/gc_mem.rs:345:39
[INFO] [stdout]     |
[INFO] [stdout] 345 |                 if root.value != u32::max_value() {
[INFO] [stdout]     |                                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present
[INFO] [stdout]    --> src/gc_mem.rs:487:53
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn to_vec<'a>(&mut self) -> Vec<(Self::ShortBox<'a>, T)>;
[INFO] [stdout]     |                   - the late bound lifetime parameter is introduced here
[INFO] [stdout] ...
[INFO] [stdout] 487 |         let mut to_do = self.replace_to_do.to_vec::<'a>();
[INFO] [stdout]     |                                                     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #42868 <https://github.com/rust-lang/rust/issues/42868>
[INFO] [stdout]     = note: `#[warn(late_bound_lifetime_arguments)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present
[INFO] [stdout]    --> src/gc_mem.rs:580:62
[INFO] [stdout]     |
[INFO] [stdout] 481 |     fn replace<'a>(
[INFO] [stdout]     |                -- the late bound lifetime parameter is introduced here
[INFO] [stdout] ...
[INFO] [stdout] 580 |                     self.current = a.to_long(&self.replace::<'a>(a, p, a.to_short(&app)));
[INFO] [stdout]     |                                                              ^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #42868 <https://github.com/rust-lang/rust/issues/42868>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cell`, `UnsafeCell`, `marker::PhantomData`, and `os::raw::c_void`
[INFO] [stdout]  --> src/gc_mem.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 |     cell::{Cell, UnsafeCell},
[INFO] [stdout]   |            ^^^^  ^^^^^^^^^^
[INFO] [stdout] 3 |     marker::PhantomData,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 4 |     os::raw::c_void,
[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 imports: `Cell` and `Ref`
[INFO] [stdout]    --> src/gc_mem.rs:107:16
[INFO] [stdout]     |
[INFO] [stdout] 107 |         cell::{Cell, Ref, RefCell, UnsafeCell},
[INFO] [stdout]     |                ^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inner`
[INFO] [stdout]    --> src/direct_executor.rs:231:40
[INFO] [stdout]     |
[INFO] [stdout] 231 |                 r @ Program::Reference(inner) => r,
[INFO] [stdout]     |                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_inner`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/direct_executor.rs:241:36
[INFO] [stdout]     |
[INFO] [stdout] 241 |                 Program::Reference(p) => (),
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/gc_mem.rs:155:13
[INFO] [stdout]     |
[INFO] [stdout] 155 |             unsafe {
[INFO] [stdout]     |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gc_mem.rs:229:17
[INFO] [stdout]     |
[INFO] [stdout] 229 |             let mut b = unsafe { &mut *self.memory.get() };
[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/gc_mem.rs:245:17
[INFO] [stdout]     |
[INFO] [stdout] 245 |             let mut b = unsafe { &mut *self.memory.get() };
[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/gc_mem.rs:262:17
[INFO] [stdout]     |
[INFO] [stdout] 262 |             let mut b = unsafe { &mut *self.memory.get() };
[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/gc_mem.rs:338:17
[INFO] [stdout]     |
[INFO] [stdout] 338 |             let mut other = self.other.get_mut();
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/gc_mem.rs:370:57
[INFO] [stdout]     |
[INFO] [stdout] 370 |                 if let super::Program::InternalReplaced(v) = next {
[INFO] [stdout]     |                                                         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gc_mem.rs:529:13
[INFO] [stdout]     |
[INFO] [stdout] 529 |         let mut f = f;
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/gc_mem.rs:678:35
[INFO] [stdout]     |
[INFO] [stdout] 678 |         Program::InternalReplaced(x) => panic!("Internal error"),
[INFO] [stdout]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl u32>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/gc_mem.rs:311:29
[INFO] [stdout]     |
[INFO] [stdout] 311 |                 value: u32::max_value(),
[INFO] [stdout]     |                             ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl u32>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/gc_mem.rs:345:39
[INFO] [stdout]     |
[INFO] [stdout] 345 |                 if root.value != u32::max_value() {
[INFO] [stdout]     |                                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present
[INFO] [stdout]    --> src/gc_mem.rs:487:53
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn to_vec<'a>(&mut self) -> Vec<(Self::ShortBox<'a>, T)>;
[INFO] [stdout]     |                   - the late bound lifetime parameter is introduced here
[INFO] [stdout] ...
[INFO] [stdout] 487 |         let mut to_do = self.replace_to_do.to_vec::<'a>();
[INFO] [stdout]     |                                                     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #42868 <https://github.com/rust-lang/rust/issues/42868>
[INFO] [stdout]     = note: `#[warn(late_bound_lifetime_arguments)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present
[INFO] [stdout]    --> src/gc_mem.rs:580:62
[INFO] [stdout]     |
[INFO] [stdout] 481 |     fn replace<'a>(
[INFO] [stdout]     |                -- the late bound lifetime parameter is introduced here
[INFO] [stdout] ...
[INFO] [stdout] 580 |                     self.current = a.to_long(&self.replace::<'a>(a, p, a.to_short(&app)));
[INFO] [stdout]     |                                                              ^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #42868 <https://github.com/rust-lang/rust/issues/42868>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `direct_executor::Program` is more private than the item `direct_executor::Executor::from_mem_rep`
[INFO] [stdout]    --> src/direct_executor.rs:142:5
[INFO] [stdout]     |
[INFO] [stdout] 142 |     pub fn from_mem_rep(&mut self, program: &super::memory_representation::Program) -> Program {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `direct_executor::Executor::from_mem_rep` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `direct_executor::Program` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/direct_executor.rs:25:1
[INFO] [stdout]     |
[INFO] [stdout]  25 | enum Program {
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `direct_executor::Program` is more private than the item `direct_executor::Executor::to_mem_rep`
[INFO] [stdout]    --> src/direct_executor.rs:162:5
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn to_mem_rep(&self, p: Program) -> super::memory_representation::Program {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `direct_executor::Executor::to_mem_rep` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `direct_executor::Program` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/direct_executor.rs:25:1
[INFO] [stdout]     |
[INFO] [stdout]  25 | enum Program {
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `direct_executor::Program` is more private than the item `direct_executor::Executor::initialize`
[INFO] [stdout]    --> src/direct_executor.rs:179:5
[INFO] [stdout]     |
[INFO] [stdout] 179 |     pub fn initialize(&mut self, p: Program) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `direct_executor::Executor::initialize` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `direct_executor::Program` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/direct_executor.rs:25:1
[INFO] [stdout]     |
[INFO] [stdout]  25 | enum Program {
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `KeepVecTrait<T>` is more private than the item `gc_mem::Allocator::KeepVec`
[INFO] [stdout]   --> src/gc_mem.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 94 |     type KeepVec<T>: for<'a> KeepVecTrait<T, ShortBox<'a> = Self::ShortBox<'a>>;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ associated type `gc_mem::Allocator::KeepVec` is reachable at visibility `pub`
[INFO] [stdout]    |
[INFO] [stdout] note: but trait `KeepVecTrait<T>` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/gc_mem.rs:97:1
[INFO] [stdout]    |
[INFO] [stdout] 97 | trait KeepVecTrait<T> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_bounds)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]    --> src/gc_mem.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub struct LongBox<A: super::Allocator<LongBox = LongBox<A>>> {
[INFO] [stdout]     |                ------- field in this struct
[INFO] [stdout] 168 |         value: u32,
[INFO] [stdout] 169 |         a: A::Ref,
[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 `0` is never read
[INFO] [stdout]   --> src/human_readable.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |     InvalidCode(&'static str),
[INFO] [stdout]    |     ----------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CompileError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 14 -     InvalidCode(&'static str),
[INFO] [stdout] 14 +     InvalidCode(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/human_readable.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 |     FreeVariables(u64),
[INFO] [stdout]    |     ------------- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CompileError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 -     FreeVariables(u64),
[INFO] [stdout] 15 +     FreeVariables(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/compare.rs:48:21
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn prog_iter(a: &[u8]) -> ProgIterator {
[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] 48 | pub fn prog_iter(a: &[u8]) -> ProgIterator<'_> {
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]    --> src/gc_mem.rs:309:38
[INFO] [stdout]     |
[INFO] [stdout] 309 |             let allocator = unsafe { &ALLOCATOR };
[INFO] [stdout]     |                                      ^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] help: use `&raw const` instead to create a raw pointer
[INFO] [stdout]     |
[INFO] [stdout] 309 |             let allocator = unsafe { &raw const ALLOCATOR };
[INFO] [stdout]     |                                       +++++++++
[INFO] [stdout] help: this type already provides "interior mutability", so its binding doesn't need to be declared as mutable when borrowed with a shared reference
[INFO] [stdout]     |
[INFO] [stdout] 402 -     static mut ALLOCATOR: Allocator = Allocator {
[INFO] [stdout] 402 +     static ALLOCATOR: Allocator = Allocator {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]    --> src/gc_mem.rs:417:25
[INFO] [stdout]     |
[INFO] [stdout] 417 |                 let _ = ALLOCATOR.memory.get_mut().try_reserve_exact(4096);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]    --> src/gc_mem.rs:418:17
[INFO] [stdout]     |
[INFO] [stdout] 418 |                 &mut ALLOCATOR
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout] help: use `&raw mut` instead to create a raw pointer
[INFO] [stdout]     |
[INFO] [stdout] 418 |                 &raw mut ALLOCATOR
[INFO] [stdout]     |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inner`
[INFO] [stdout]    --> src/direct_executor.rs:231:40
[INFO] [stdout]     |
[INFO] [stdout] 231 |                 r @ Program::Reference(inner) => r,
[INFO] [stdout]     |                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_inner`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/direct_executor.rs:241:36
[INFO] [stdout]     |
[INFO] [stdout] 241 |                 Program::Reference(p) => (),
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `gc_mem::Allocator`
[INFO] [stdout]  --> benches/add.rs:6:32
[INFO] [stdout]   |
[INFO] [stdout] 6 | use lambda_calculus::{execute, gc_mem::Allocator, parse_arguments, pretty, Program};
[INFO] [stdout]   |                                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/gc_mem.rs:155:13
[INFO] [stdout]     |
[INFO] [stdout] 155 |             unsafe {
[INFO] [stdout]     |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gc_mem.rs:229:17
[INFO] [stdout]     |
[INFO] [stdout] 229 |             let mut b = unsafe { &mut *self.memory.get() };
[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/gc_mem.rs:245:17
[INFO] [stdout]     |
[INFO] [stdout] 245 |             let mut b = unsafe { &mut *self.memory.get() };
[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/gc_mem.rs:262:17
[INFO] [stdout]     |
[INFO] [stdout] 262 |             let mut b = unsafe { &mut *self.memory.get() };
[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/gc_mem.rs:338:17
[INFO] [stdout]     |
[INFO] [stdout] 338 |             let mut other = self.other.get_mut();
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/gc_mem.rs:370:57
[INFO] [stdout]     |
[INFO] [stdout] 370 |                 if let super::Program::InternalReplaced(v) = next {
[INFO] [stdout]     |                                                         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/gc_mem.rs:431:13
[INFO] [stdout]     |
[INFO] [stdout] 431 |         let c = alloc.new(&lambda);
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/gc_mem.rs:433:13
[INFO] [stdout]     |
[INFO] [stdout] 433 |         let b = alloc.to_long(&a);
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gc_mem.rs:529:13
[INFO] [stdout]     |
[INFO] [stdout] 529 |         let mut f = f;
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/gc_mem.rs:678:35
[INFO] [stdout]     |
[INFO] [stdout] 678 |         Program::InternalReplaced(x) => panic!("Internal error"),
[INFO] [stdout]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `direct_executor::Program` is more private than the item `direct_executor::Executor::from_mem_rep`
[INFO] [stdout]    --> src/direct_executor.rs:142:5
[INFO] [stdout]     |
[INFO] [stdout] 142 |     pub fn from_mem_rep(&mut self, program: &super::memory_representation::Program) -> Program {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `direct_executor::Executor::from_mem_rep` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `direct_executor::Program` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/direct_executor.rs:25:1
[INFO] [stdout]     |
[INFO] [stdout]  25 | enum Program {
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `direct_executor::Program` is more private than the item `direct_executor::Executor::to_mem_rep`
[INFO] [stdout]    --> src/direct_executor.rs:162:5
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn to_mem_rep(&self, p: Program) -> super::memory_representation::Program {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `direct_executor::Executor::to_mem_rep` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `direct_executor::Program` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/direct_executor.rs:25:1
[INFO] [stdout]     |
[INFO] [stdout]  25 | enum Program {
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `direct_executor::Program` is more private than the item `direct_executor::Executor::initialize`
[INFO] [stdout]    --> src/direct_executor.rs:179:5
[INFO] [stdout]     |
[INFO] [stdout] 179 |     pub fn initialize(&mut self, p: Program) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `direct_executor::Executor::initialize` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `direct_executor::Program` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/direct_executor.rs:25:1
[INFO] [stdout]     |
[INFO] [stdout]  25 | enum Program {
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `KeepVecTrait<T>` is more private than the item `gc_mem::Allocator::KeepVec`
[INFO] [stdout]   --> src/gc_mem.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 94 |     type KeepVec<T>: for<'a> KeepVecTrait<T, ShortBox<'a> = Self::ShortBox<'a>>;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ associated type `gc_mem::Allocator::KeepVec` is reachable at visibility `pub`
[INFO] [stdout]    |
[INFO] [stdout] note: but trait `KeepVecTrait<T>` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/gc_mem.rs:97:1
[INFO] [stdout]    |
[INFO] [stdout] 97 | trait KeepVecTrait<T> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_bounds)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]    --> src/gc_mem.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub struct LongBox<A: super::Allocator<LongBox = LongBox<A>>> {
[INFO] [stdout]     |                ------- field in this struct
[INFO] [stdout] 168 |         value: u32,
[INFO] [stdout] 169 |         a: A::Ref,
[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 `0` is never read
[INFO] [stdout]   --> src/human_readable.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |     InvalidCode(&'static str),
[INFO] [stdout]    |     ----------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CompileError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 14 -     InvalidCode(&'static str),
[INFO] [stdout] 14 +     InvalidCode(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/human_readable.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 |     FreeVariables(u64),
[INFO] [stdout]    |     ------------- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CompileError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 -     FreeVariables(u64),
[INFO] [stdout] 15 +     FreeVariables(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/compare.rs:48:21
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn prog_iter(a: &[u8]) -> ProgIterator {
[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] 48 | pub fn prog_iter(a: &[u8]) -> ProgIterator<'_> {
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]    --> src/gc_mem.rs:309:38
[INFO] [stdout]     |
[INFO] [stdout] 309 |             let allocator = unsafe { &ALLOCATOR };
[INFO] [stdout]     |                                      ^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] help: use `&raw const` instead to create a raw pointer
[INFO] [stdout]     |
[INFO] [stdout] 309 |             let allocator = unsafe { &raw const ALLOCATOR };
[INFO] [stdout]     |                                       +++++++++
[INFO] [stdout] help: this type already provides "interior mutability", so its binding doesn't need to be declared as mutable when borrowed with a shared reference
[INFO] [stdout]     |
[INFO] [stdout] 402 -     static mut ALLOCATOR: Allocator = Allocator {
[INFO] [stdout] 402 +     static ALLOCATOR: Allocator = Allocator {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]    --> src/gc_mem.rs:417:25
[INFO] [stdout]     |
[INFO] [stdout] 417 |                 let _ = ALLOCATOR.memory.get_mut().try_reserve_exact(4096);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]    --> src/gc_mem.rs:418:17
[INFO] [stdout]     |
[INFO] [stdout] 418 |                 &mut ALLOCATOR
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout] help: use `&raw mut` instead to create a raw pointer
[INFO] [stdout]     |
[INFO] [stdout] 418 |                 &raw mut ALLOCATOR
[INFO] [stdout]     |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `criterion-cycles-per-byte`
[INFO] [stderr]   --> Cargo.toml:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | criterion-cycles-per-byte = "0.6.0"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `criterion-cycles-per-byte`
[INFO] [stderr] warning: `lambda_calculus` (manifest) generated 1 warning
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 50.32s
[INFO] running `Command { std: "docker" "inspect" "747b1526ff24f6c41aa449c8d1dc1f40d757e42d8849616cd3f6841917ae2447", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "747b1526ff24f6c41aa449c8d1dc1f40d757e42d8849616cd3f6841917ae2447", kill_on_drop: false }`
[INFO] [stdout] 747b1526ff24f6c41aa449c8d1dc1f40d757e42d8849616cd3f6841917ae2447
