[INFO] cloning repository https://github.com/noah7545/OxidizeVM
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/noah7545/OxidizeVM" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnoah7545%2FOxidizeVM", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnoah7545%2FOxidizeVM'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8d69d83c20e5fd74ba950e8179a4855f8b0f32f4
[INFO] testing noah7545/OxidizeVM against 1.91.0 for beta-1.92-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnoah7545%2FOxidizeVM" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/noah7545/OxidizeVM
[INFO] finished tweaking git repo https://github.com/noah7545/OxidizeVM
[INFO] tweaked toml for git repo https://github.com/noah7545/OxidizeVM written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/noah7545/OxidizeVM on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/noah7545/OxidizeVM 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6c53282beb4b2702fc38afa50b8e71d33a44d4746aef1de1fd75934f13b5f6f
[INFO] running `Command { std: "docker" "start" "-a" "d6c53282beb4b2702fc38afa50b8e71d33a44d4746aef1de1fd75934f13b5f6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6c53282beb4b2702fc38afa50b8e71d33a44d4746aef1de1fd75934f13b5f6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6c53282beb4b2702fc38afa50b8e71d33a44d4746aef1de1fd75934f13b5f6f", kill_on_drop: false }`
[INFO] [stdout] d6c53282beb4b2702fc38afa50b8e71d33a44d4746aef1de1fd75934f13b5f6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c739123d130c375acfcb9a58343474204a0fa2567092ed4809b6923ec0c9e4a2
[INFO] running `Command { std: "docker" "start" "-a" "c739123d130c375acfcb9a58343474204a0fa2567092ed4809b6923ec0c9e4a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/stackobj.rs:97:44
[INFO] [stdout]    |
[INFO] [stdout] 97 |                     StackObj::Num(arg2) => (arg1 == arg2),
[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] 97 -                     StackObj::Num(arg2) => (arg1 == arg2),
[INFO] [stdout] 97 +                     StackObj::Num(arg2) => arg1 == arg2,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/machine.rs:193:13
[INFO] [stdout]     |
[INFO] [stdout] 193 |             _ => panic!("Error: unknown opcode.")
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/machine.rs:193:13
[INFO] [stdout]     |
[INFO] [stdout]  71 |             Opcode::Halt => self.halted = true,
[INFO] [stdout]     |             ------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout]  74 |             Opcode::Push(arg1) => {
[INFO] [stdout]     |             ------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout]  77 |             Opcode::Pop => {
[INFO] [stdout]     |             ----------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout]  81 |             Opcode::Dup => {
[INFO] [stdout]     |             ----------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 193 |             _ => panic!("Error: unknown opcode.")
[INFO] [stdout]     |             ^ ...and 17 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_program`
[INFO] [stdout]   --> src/main.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let max_program = [
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_program`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `while_loop`
[INFO] [stdout]   --> src/main.rs:33:10
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let  while_loop= [
[INFO] [stdout]    |          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_while_loop`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `test_function`
[INFO] [stdout]   --> src/main.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let test_function = [
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_function`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/opcodes.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub enum Opcode {
[INFO] [stdout]    |          ------ variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 11 |     Pop,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     Sub,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 21 |     Mul,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 22 |     Div,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     Not,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 26 |     And,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 27 |     Or,
[INFO] [stdout]    |     ^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     Iseq,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 39 |     Isge,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Ref` is never constructed
[INFO] [stdout]   --> src/stackobj.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub enum StackObj {
[INFO] [stdout]    |          -------- variant in this enum
[INFO] [stdout]  9 |     Num(f32),
[INFO] [stdout] 10 |     Ref(u32),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `StackObj` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/machine.rs:198:25
[INFO] [stdout]     |
[INFO] [stdout] 198 |     pub fn new(program: &[Opcode]) -> Machine {
[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] 198 |     pub fn new(program: &[Opcode]) -> Machine<'_> {
[INFO] [stdout]     |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "c739123d130c375acfcb9a58343474204a0fa2567092ed4809b6923ec0c9e4a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c739123d130c375acfcb9a58343474204a0fa2567092ed4809b6923ec0c9e4a2", kill_on_drop: false }`
[INFO] [stdout] c739123d130c375acfcb9a58343474204a0fa2567092ed4809b6923ec0c9e4a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d737e61c2d5eae5a4973aa777259a436b13969090b5f7340acb8caf586a8228c
[INFO] running `Command { std: "docker" "start" "-a" "d737e61c2d5eae5a4973aa777259a436b13969090b5f7340acb8caf586a8228c", kill_on_drop: false }`
[INFO] [stderr]    Compiling vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/stackobj.rs:97:44
[INFO] [stdout]    |
[INFO] [stdout] 97 |                     StackObj::Num(arg2) => (arg1 == arg2),
[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] 97 -                     StackObj::Num(arg2) => (arg1 == arg2),
[INFO] [stdout] 97 +                     StackObj::Num(arg2) => arg1 == arg2,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/machine.rs:193:13
[INFO] [stdout]     |
[INFO] [stdout] 193 |             _ => panic!("Error: unknown opcode.")
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/machine.rs:193:13
[INFO] [stdout]     |
[INFO] [stdout]  71 |             Opcode::Halt => self.halted = true,
[INFO] [stdout]     |             ------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout]  74 |             Opcode::Push(arg1) => {
[INFO] [stdout]     |             ------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout]  77 |             Opcode::Pop => {
[INFO] [stdout]     |             ----------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout]  81 |             Opcode::Dup => {
[INFO] [stdout]     |             ----------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 193 |             _ => panic!("Error: unknown opcode.")
[INFO] [stdout]     |             ^ ...and 17 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_program`
[INFO] [stdout]   --> src/main.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let max_program = [
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_program`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `while_loop`
[INFO] [stdout]   --> src/main.rs:33:10
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let  while_loop= [
[INFO] [stdout]    |          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_while_loop`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `test_function`
[INFO] [stdout]   --> src/main.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let test_function = [
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_function`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/opcodes.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub enum Opcode {
[INFO] [stdout]    |          ------ variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 11 |     Pop,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     Sub,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 21 |     Mul,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 22 |     Div,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     Not,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 26 |     And,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 27 |     Or,
[INFO] [stdout]    |     ^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     Iseq,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 39 |     Isge,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Ref` is never constructed
[INFO] [stdout]   --> src/stackobj.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub enum StackObj {
[INFO] [stdout]    |          -------- variant in this enum
[INFO] [stdout]  9 |     Num(f32),
[INFO] [stdout] 10 |     Ref(u32),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `StackObj` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/machine.rs:198:25
[INFO] [stdout]     |
[INFO] [stdout] 198 |     pub fn new(program: &[Opcode]) -> Machine {
[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] 198 |     pub fn new(program: &[Opcode]) -> Machine<'_> {
[INFO] [stdout]     |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "d737e61c2d5eae5a4973aa777259a436b13969090b5f7340acb8caf586a8228c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d737e61c2d5eae5a4973aa777259a436b13969090b5f7340acb8caf586a8228c", kill_on_drop: false }`
[INFO] [stdout] d737e61c2d5eae5a4973aa777259a436b13969090b5f7340acb8caf586a8228c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c5b2224bc0d5753464cf10a7b7a9e04bb8b642a3018d097d56327038aa3792ba
[INFO] running `Command { std: "docker" "start" "-a" "c5b2224bc0d5753464cf10a7b7a9e04bb8b642a3018d097d56327038aa3792ba", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around match arm expression
[INFO] [stderr]   --> src/stackobj.rs:97:44
[INFO] [stderr]    |
[INFO] [stderr] 97 |                     StackObj::Num(arg2) => (arg1 == arg2),
[INFO] [stderr]    |                                            ^            ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 97 -                     StackObj::Num(arg2) => (arg1 == arg2),
[INFO] [stderr] 97 +                     StackObj::Num(arg2) => arg1 == arg2,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/machine.rs:193:13
[INFO] [stderr]     |
[INFO] [stderr] 193 |             _ => panic!("Error: unknown opcode.")
[INFO] [stderr]     |             ^ no value can reach this
[INFO] [stderr]     |
[INFO] [stderr] note: multiple earlier patterns match some of the same values
[INFO] [stderr]    --> src/machine.rs:193:13
[INFO] [stderr]     |
[INFO] [stderr]  71 |             Opcode::Halt => self.halted = true,
[INFO] [stderr]     |             ------------ matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr]  74 |             Opcode::Push(arg1) => {
[INFO] [stderr]     |             ------------------ matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr]  77 |             Opcode::Pop => {
[INFO] [stderr]     |             ----------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr]  81 |             Opcode::Dup => {
[INFO] [stderr]     |             ----------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 193 |             _ => panic!("Error: unknown opcode.")
[INFO] [stderr]     |             ^ ...and 17 other patterns collectively make this unreachable
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `max_program`
[INFO] [stderr]   --> src/main.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let max_program = [
[INFO] [stderr]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_program`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `while_loop`
[INFO] [stderr]   --> src/main.rs:33:10
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let  while_loop= [
[INFO] [stderr]    |          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_while_loop`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `test_function`
[INFO] [stderr]   --> src/main.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |     let test_function = [
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_function`
[INFO] [stderr] 
[INFO] [stderr] warning: multiple variants are never constructed
[INFO] [stderr]   --> src/opcodes.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr]  5 | pub enum Opcode {
[INFO] [stderr]    |          ------ variants in this enum
[INFO] [stderr] ...
[INFO] [stderr] 11 |     Pop,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] ...
[INFO] [stderr] 20 |     Sub,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 21 |     Mul,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 22 |     Div,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] ...
[INFO] [stderr] 25 |     Not,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 26 |     And,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 27 |     Or,
[INFO] [stderr]    |     ^^
[INFO] [stderr] ...
[INFO] [stderr] 38 |     Iseq,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 39 |     Isge,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Ref` is never constructed
[INFO] [stderr]   --> src/stackobj.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr]  8 | pub enum StackObj {
[INFO] [stderr]    |          -------- variant in this enum
[INFO] [stderr]  9 |     Num(f32),
[INFO] [stderr] 10 |     Ref(u32),
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `StackObj` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/machine.rs:198:25
[INFO] [stderr]     |
[INFO] [stderr] 198 |     pub fn new(program: &[Opcode]) -> Machine {
[INFO] [stderr]     |                         ^^^^^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 198 |     pub fn new(program: &[Opcode]) -> Machine<'_> {
[INFO] [stderr]     |                                              ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `vm` (bin "vm" test) generated 8 warnings (run `cargo fix --bin "vm" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/vm-6b26c82196aaa216)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c5b2224bc0d5753464cf10a7b7a9e04bb8b642a3018d097d56327038aa3792ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5b2224bc0d5753464cf10a7b7a9e04bb8b642a3018d097d56327038aa3792ba", kill_on_drop: false }`
[INFO] [stdout] c5b2224bc0d5753464cf10a7b7a9e04bb8b642a3018d097d56327038aa3792ba
