[INFO] cloning repository https://github.com/Javyre/uLisp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Javyre/uLisp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJavyre%2FuLisp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJavyre%2FuLisp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 154a087a648f8908f78d94232b842211c8a831e7
[INFO] checking Javyre/uLisp/154a087a648f8908f78d94232b842211c8a831e7 against master#e22dab387f6b4f6a87dfc54ac2f6013dddb41e68 for pr-136776-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJavyre%2FuLisp" "/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/Javyre/uLisp
[INFO] finished tweaking git repo https://github.com/Javyre/uLisp
[INFO] tweaked toml for git repo https://github.com/Javyre/uLisp written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Javyre/uLisp on toolchain e22dab387f6b4f6a87dfc54ac2f6013dddb41e68
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e22dab387f6b4f6a87dfc54ac2f6013dddb41e68" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Javyre/uLisp 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" "+e22dab387f6b4f6a87dfc54ac2f6013dddb41e68" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+e22dab387f6b4f6a87dfc54ac2f6013dddb41e68" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09092d1be032316cc496ac086c912ec1ad0792819cb07db94fced39f1456c808
[INFO] running `Command { std: "docker" "start" "-a" "09092d1be032316cc496ac086c912ec1ad0792819cb07db94fced39f1456c808", kill_on_drop: false }`
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[INFO] [stdout] 09092d1be032316cc496ac086c912ec1ad0792819cb07db94fced39f1456c808
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+e22dab387f6b4f6a87dfc54ac2f6013dddb41e68" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "06a5ab02f800c1ab3019c00034100a4db6a2a97cf81953d46434a2f7fa107235", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]     Checking quick-error v1.2.1
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[INFO] [stderr]     Checking termcolor v0.3.6
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking regex-syntax v0.5.3
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking memchr v2.0.1
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[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking env_logger v0.5.6
[INFO] [stderr]     Checking ulisp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `RefMut` and `Ref`
[INFO] [stdout]  --> src/vm/mem.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     Ref,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 5 |     RefMut,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/vm/mod.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | / bitflags! {
[INFO] [stdout] 25 | |     pub struct LoadOpts: u8 {
[INFO] [stdout] 26 | |         const OVERRIDE_VAR_STRINGS = 0b00000001;
[INFO] [stdout] 27 | |         const REUSE_VAR_STRINGS    = 0b00000010;
[INFO] [stdout] ...  |
[INFO] [stdout] 30 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `__impl_bitflags` which comes from the expansion of the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/vm/mod.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | / bitflags! {
[INFO] [stdout] 25 | |     pub struct LoadOpts: u8 {
[INFO] [stdout] 26 | |         const OVERRIDE_VAR_STRINGS = 0b00000001;
[INFO] [stdout] 27 | |         const REUSE_VAR_STRINGS    = 0b00000010;
[INFO] [stdout] ...  |
[INFO] [stdout] 30 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__impl_bitflags` which comes from the expansion of the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/vm/mod.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | / bitflags! {
[INFO] [stdout] 25 | |     pub struct LoadOpts: u8 {
[INFO] [stdout] 26 | |         const OVERRIDE_VAR_STRINGS = 0b00000001;
[INFO] [stdout] 27 | |         const REUSE_VAR_STRINGS    = 0b00000010;
[INFO] [stdout] ...  |
[INFO] [stdout] 30 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__impl_bitflags` which comes from the expansion of the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/vm/mod.rs:189:50
[INFO] [stdout]     |
[INFO] [stdout] 189 | ...                   OpCode::CEQ | _ => { (v == n)  },
[INFO] [stdout]     |                                            ^      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 189 -                             OpCode::CEQ | _ => { (v == n)  },
[INFO] [stdout] 189 +                             OpCode::CEQ | _ => { v == n   },
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `RefMut` and `Ref`
[INFO] [stdout]  --> src/vm/mem.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     Ref,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 5 |     RefMut,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/vm/mod.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | / bitflags! {
[INFO] [stdout] 25 | |     pub struct LoadOpts: u8 {
[INFO] [stdout] 26 | |         const OVERRIDE_VAR_STRINGS = 0b00000001;
[INFO] [stdout] 27 | |         const REUSE_VAR_STRINGS    = 0b00000010;
[INFO] [stdout] ...  |
[INFO] [stdout] 30 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `__impl_bitflags` which comes from the expansion of the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/vm/mod.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | / bitflags! {
[INFO] [stdout] 25 | |     pub struct LoadOpts: u8 {
[INFO] [stdout] 26 | |         const OVERRIDE_VAR_STRINGS = 0b00000001;
[INFO] [stdout] 27 | |         const REUSE_VAR_STRINGS    = 0b00000010;
[INFO] [stdout] ...  |
[INFO] [stdout] 30 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__impl_bitflags` which comes from the expansion of the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/vm/mod.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | / bitflags! {
[INFO] [stdout] 25 | |     pub struct LoadOpts: u8 {
[INFO] [stdout] 26 | |         const OVERRIDE_VAR_STRINGS = 0b00000001;
[INFO] [stdout] 27 | |         const REUSE_VAR_STRINGS    = 0b00000010;
[INFO] [stdout] ...  |
[INFO] [stdout] 30 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__impl_bitflags` which comes from the expansion of the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/vm/mod.rs:189:50
[INFO] [stdout]     |
[INFO] [stdout] 189 | ...                   OpCode::CEQ | _ => { (v == n)  },
[INFO] [stdout]     |                                            ^      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 189 -                             OpCode::CEQ | _ => { (v == n)  },
[INFO] [stdout] 189 +                             OpCode::CEQ | _ => { v == n   },
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `initial_len`
[INFO] [stdout]    --> src/vm/mod.rs:346:13
[INFO] [stdout]     |
[INFO] [stdout] 346 |         let initial_len = self.reg_stack.len();
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_initial_len`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vm/mod.rs:387:33
[INFO] [stdout]     |
[INFO] [stdout] 387 |         let (mut insts, idents, mut var_strings, consts) = bin.unpack();
[INFO] [stdout]     |                                 ----^^^^^^^^^^^
[INFO] [stdout]     |                                 |
[INFO] [stdout]     |                                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `consts` is never read
[INFO] [stdout]   --> src/vm/mod.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub struct VM {
[INFO] [stdout]    |            -- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 45 |     consts: Rc<RefCell<Constants>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `initial_len`
[INFO] [stdout]    --> src/vm/mod.rs:346:13
[INFO] [stdout]     |
[INFO] [stdout] 346 |         let initial_len = self.reg_stack.len();
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_initial_len`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `append` and `define_n` are never used
[INFO] [stdout]   --> src/vm/mem.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 54 | impl Environment {
[INFO] [stdout]    | ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 68 |     pub fn append(&mut self, other: Environment) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 81 |     fn define_n(&mut self, frame: usize, ident: IdentID, val: MemData) -> Result<(), Error> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/vm/mem.rs:233:8
[INFO] [stdout]     |
[INFO] [stdout] 216 | impl EnvNode {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 233 |     fn get_parent(&self) -> Option<&Rc<RefCell<EnvNode>>> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 240 |     fn get_child(&self) -> Option<&Weak<RefCell<EnvNode>>> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 248 |     fn define_n(&mut self, n: usize, ident: IdentID, val: MemData) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 286 |     fn get_parent_n(&self, n: usize) -> Option<Rc<RefCell<EnvNode>>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 295 |     fn get_child_n(&self, n: usize) -> Option<Rc<RefCell<EnvNode>>> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 321 |     fn get_frame(&self) -> &Frame {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 325 |     fn get_frame_mut(&mut self) -> &mut Frame {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `create_pointer`, `clone_pointer`, `is_true`, and `eq` are never used
[INFO] [stdout]    --> src/vm/data.rs:189:12
[INFO] [stdout]     |
[INFO] [stdout] 158 | impl MemData {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 189 |     pub fn create_pointer(data: MemData) -> MemData {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 197 |     pub fn clone_pointer(&self) -> Option<MemData> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 257 |     pub fn is_true(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 293 |     pub fn eq(&self, other: &Self) -> Result<bool, Error> {
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BadScopeIndex` is never constructed
[INFO] [stdout]   --> src/vm/err.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub enum Error {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 43 |     BadScopeIndex(usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vm/mod.rs:387:33
[INFO] [stdout]     |
[INFO] [stdout] 387 |         let (mut insts, idents, mut var_strings, consts) = bin.unpack();
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/vm/mod.rs:424:9
[INFO] [stdout]     |
[INFO] [stdout] 424 |         self.memory.define(id, MemData::Lambda(insts, env));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 424 |         let _ = self.memory.define(id, MemData::Lambda(insts, env));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `consts` is never read
[INFO] [stdout]   --> src/vm/mod.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub struct VM {
[INFO] [stdout]    |            -- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 45 |     consts: Rc<RefCell<Constants>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/vm/data.rs:397:17
[INFO] [stdout]     |
[INFO] [stdout] 397 |     pub fn iter(&self) -> ::std::slice::Iter<Op> {
[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] 397 |     pub fn iter(&self) -> ::std::slice::Iter<'_, Op> {
[INFO] [stdout]     |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `append` and `define_n` are never used
[INFO] [stdout]   --> src/vm/mem.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 54 | impl Environment {
[INFO] [stdout]    | ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 68 |     pub fn append(&mut self, other: Environment) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 81 |     fn define_n(&mut self, frame: usize, ident: IdentID, val: MemData) -> Result<(), Error> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/vm/mem.rs:233:8
[INFO] [stdout]     |
[INFO] [stdout] 216 | impl EnvNode {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 233 |     fn get_parent(&self) -> Option<&Rc<RefCell<EnvNode>>> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 240 |     fn get_child(&self) -> Option<&Weak<RefCell<EnvNode>>> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 248 |     fn define_n(&mut self, n: usize, ident: IdentID, val: MemData) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 286 |     fn get_parent_n(&self, n: usize) -> Option<Rc<RefCell<EnvNode>>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 295 |     fn get_child_n(&self, n: usize) -> Option<Rc<RefCell<EnvNode>>> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 321 |     fn get_frame(&self) -> &Frame {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 325 |     fn get_frame_mut(&mut self) -> &mut Frame {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `create_pointer`, `clone_pointer`, and `is_true` are never used
[INFO] [stdout]    --> src/vm/data.rs:189:12
[INFO] [stdout]     |
[INFO] [stdout] 158 | impl MemData {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 189 |     pub fn create_pointer(data: MemData) -> MemData {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 197 |     pub fn clone_pointer(&self) -> Option<MemData> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 257 |     pub fn is_true(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BadScopeIndex` is never constructed
[INFO] [stdout]   --> src/vm/err.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub enum Error {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 43 |     BadScopeIndex(usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `R` is never constructed
[INFO] [stdout]    --> src/tests.rs:180:19
[INFO] [stdout]     |
[INFO] [stdout] 180 |                 (#R = Int(123))
[INFO] [stdout]     |                   ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/vm/macros.rs:54:14
[INFO] [stdout]     |
[INFO] [stdout]  54 |         enum ___BinConst { $($ids),* }
[INFO] [stdout]     |              ----------- variant in this enum
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `consts` which comes from the expansion of the macro `program` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/vm/mod.rs:424:9
[INFO] [stdout]     |
[INFO] [stdout] 424 |         self.memory.define(id, MemData::Lambda(insts, env));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 424 |         let _ = self.memory.define(id, MemData::Lambda(insts, env));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/vm/data.rs:397:17
[INFO] [stdout]     |
[INFO] [stdout] 397 |     pub fn iter(&self) -> ::std::slice::Iter<Op> {
[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] 397 |     pub fn iter(&self) -> ::std::slice::Iter<'_, Op> {
[INFO] [stdout]     |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.20s
[INFO] running `Command { std: "docker" "inspect" "06a5ab02f800c1ab3019c00034100a4db6a2a97cf81953d46434a2f7fa107235", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06a5ab02f800c1ab3019c00034100a4db6a2a97cf81953d46434a2f7fa107235", kill_on_drop: false }`
[INFO] [stdout] 06a5ab02f800c1ab3019c00034100a4db6a2a97cf81953d46434a2f7fa107235
