[INFO] cloning repository https://github.com/armanthepythonguy/Useless-ZKVM
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/armanthepythonguy/Useless-ZKVM" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farmanthepythonguy%2FUseless-ZKVM", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farmanthepythonguy%2FUseless-ZKVM'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f8490809c9de906f86539a5482a176160c46dff4
[INFO] testing armanthepythonguy/Useless-ZKVM against try#0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6 for pr-137122-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farmanthepythonguy%2FUseless-ZKVM" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/armanthepythonguy/Useless-ZKVM
[INFO] finished tweaking git repo https://github.com/armanthepythonguy/Useless-ZKVM
[INFO] tweaked toml for git repo https://github.com/armanthepythonguy/Useless-ZKVM written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/armanthepythonguy/Useless-ZKVM on toolchain 0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/armanthepythonguy/Useless-ZKVM 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" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "rm" "-f" "afbc01846d337772e33e85e9da2f2ae87d60881ef660134da5f01b0d14093564", kill_on_drop: false }`
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[INFO] [stdout] 4128a93aea454b7e22c8aedb8917d3540ec57a13486723e0894cb80122838a1e
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[INFO] [stderr]    Compiling p3-commit v0.1.0 (https://github.com/Plonky3/Plonky3.git#e61ed4ae)
[INFO] [stderr]    Compiling p3-fri v0.1.0 (https://github.com/Plonky3/Plonky3.git#e61ed4ae)
[INFO] [stderr]    Compiling p3-uni-stark v0.1.0 (https://github.com/Plonky3/Plonky3.git#e61ed4ae)
[INFO] [stderr]    Compiling p3-merkle-tree v0.1.0 (https://github.com/Plonky3/Plonky3.git#e61ed4ae)
[INFO] [stderr]    Compiling p3-poseidon2 v0.1.0 (https://github.com/Plonky3/Plonky3.git#e61ed4ae)
[INFO] [stderr]    Compiling p3-poseidon v0.1.0 (https://github.com/Plonky3/Plonky3.git#e61ed4ae)
[INFO] [stderr]    Compiling p3-monty-31 v0.1.0 (https://github.com/Plonky3/Plonky3.git#e61ed4ae)
[INFO] [stderr]    Compiling p3-goldilocks v0.1.0 (https://github.com/Plonky3/Plonky3.git#e61ed4ae)
[INFO] [stderr]    Compiling p3-mersenne-31 v0.1.0 (https://github.com/Plonky3/Plonky3.git#e61ed4ae)
[INFO] [stderr]    Compiling p3-circle v0.1.0 (https://github.com/Plonky3/Plonky3.git#e61ed4ae)
[INFO] [stderr]    Compiling p3-baby-bear v0.1.0 (https://github.com/Plonky3/Plonky3.git#e61ed4ae)
[INFO] [stderr]    Compiling useless-vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `fs::File` and `io::Read`
[INFO] [stdout]  --> src/p3.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::File, io::Read, marker::PhantomData};
[INFO] [stdout]   |           ^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Proof`
[INFO] [stdout]   --> src/p3.rs:14:35
[INFO] [stdout]    |
[INFO] [stdout] 14 | use p3_uni_stark::{prove, verify, Proof, StarkConfig};
[INFO] [stdout]    |                                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `collections::HashMap`, `fs::File`, and `io::Write`
[INFO] [stdout]  --> src/vm.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::HashMap, fs::File, io::Write};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/vm.rs:85:17
[INFO] [stdout]    |
[INFO] [stdout] 85 |     ) -> Result<(Mersenne31), String>
[INFO] [stdout]    |                 ^          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 85 -     ) -> Result<(Mersenne31), String>
[INFO] [stdout] 85 +     ) -> Result<Mersenne31, String>
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/vm.rs:105:12
[INFO] [stdout]     |
[INFO] [stdout] 105 |         Ok((extra_data))
[INFO] [stdout]     |            ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 105 -         Ok((extra_data))
[INFO] [stdout] 105 +         Ok(extra_data)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::error`
[INFO] [stdout]    --> src/vm.rs:194:9
[INFO] [stdout]     |
[INFO] [stdout] 194 |     use core::error;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `p3_field::FieldAlgebra`
[INFO] [stdout]    --> src/vm.rs:196:9
[INFO] [stdout]     |
[INFO] [stdout] 196 |     use p3_field::FieldAlgebra;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `p3_mersenne_31::Mersenne31`
[INFO] [stdout]    --> src/vm.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 |     use p3_mersenne_31::Mersenne31;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Instructions` and `VM`
[INFO] [stdout]    --> src/vm.rs:199:21
[INFO] [stdout]     |
[INFO] [stdout] 199 |     use crate::vm::{Instructions, VM};
[INFO] [stdout]     |                     ^^^^^^^^^^^^  ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FieldAlgebra`, `Field`, `PrimeField32`, and `extension::BinomialExtensionField`
[INFO] [stdout]  --> src/lib.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     use p3_field::{extension::BinomialExtensionField, Field, FieldAlgebra, PrimeField32};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | mod test {
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `p3_mersenne_31::Mersenne31`
[INFO] [stdout]  --> src/lib.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     use p3_mersenne_31::Mersenne31;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | mod test {
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Instructions`, `VM`, and `p3::VMAir`
[INFO] [stdout]   --> src/lib.rs:9:9
[INFO] [stdout]    |
[INFO] [stdout] 9  |         p3::VMAir,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 10 |         vm::{Instructions, VM},
[INFO] [stdout]    |              ^^^^^^^^^^^^  ^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]   --> src/lib.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout] 4  | mod test {
[INFO] [stdout]    | ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VMAir` is never constructed
[INFO] [stdout]   --> src/p3.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct VMAir {}
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `generate_proof` is never used
[INFO] [stdout]   --> src/p3.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 83 | impl VMAir {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 84 |     pub fn generate_proof(&self, vm: VM) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_trace` is never used
[INFO] [stdout]    --> src/p3.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub fn get_trace<F: Field>(vm: VM) -> RowMajorMatrix<F> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Instructions` is never used
[INFO] [stdout]  --> src/vm.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum Instructions {
[INFO] [stdout]   |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VMState` is never constructed
[INFO] [stdout]   --> src/vm.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct VMState {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VM` is never constructed
[INFO] [stdout]   --> src/vm.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct VM {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `run`, `perform_operation`, and `get_trace` are never used
[INFO] [stdout]    --> src/vm.rs:32:12
[INFO] [stdout]     |
[INFO] [stdout] 31  | impl VM {
[INFO] [stdout]     | ------- associated items in this implementation
[INFO] [stdout] 32  |     pub fn new(insruction: Vec<Instructions>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 42  |     pub fn run(&mut self) -> Result<(), String> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 81  |     fn perform_operation<F, G>(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |     pub fn get_trace(&self) -> Vec<[Mersenne31; 11]> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/p3.rs:123:9
[INFO] [stdout]     |
[INFO] [stdout] 123 |         verify(&config, self, &mut challenger, &proof, &vec![]);
[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)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 123 |         let _ = verify(&config, self, &mut challenger, &proof, &vec![]);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.43s
[INFO] running `Command { std: "docker" "inspect" "4128a93aea454b7e22c8aedb8917d3540ec57a13486723e0894cb80122838a1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4128a93aea454b7e22c8aedb8917d3540ec57a13486723e0894cb80122838a1e", kill_on_drop: false }`
[INFO] [stdout] 4128a93aea454b7e22c8aedb8917d3540ec57a13486723e0894cb80122838a1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6cd8abb51e1418ff54365273fda3dfdc0d2fafffca67a4b6439c8375344db560
[INFO] running `Command { std: "docker" "start" "-a" "6cd8abb51e1418ff54365273fda3dfdc0d2fafffca67a4b6439c8375344db560", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `fs::File` and `io::Read`
[INFO] [stdout]  --> src/p3.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::File, io::Read, marker::PhantomData};
[INFO] [stdout]   |           ^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Proof`
[INFO] [stdout]   --> src/p3.rs:14:35
[INFO] [stdout]    |
[INFO] [stdout] 14 | use p3_uni_stark::{prove, verify, Proof, StarkConfig};
[INFO] [stdout]    |                                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling useless-vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `collections::HashMap`, `fs::File`, and `io::Write`
[INFO] [stdout]  --> src/vm.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::HashMap, fs::File, io::Write};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/vm.rs:85:17
[INFO] [stdout]    |
[INFO] [stdout] 85 |     ) -> Result<(Mersenne31), String>
[INFO] [stdout]    |                 ^          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 85 -     ) -> Result<(Mersenne31), String>
[INFO] [stdout] 85 +     ) -> Result<Mersenne31, String>
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/vm.rs:105:12
[INFO] [stdout]     |
[INFO] [stdout] 105 |         Ok((extra_data))
[INFO] [stdout]     |            ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 105 -         Ok((extra_data))
[INFO] [stdout] 105 +         Ok(extra_data)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::error`
[INFO] [stdout]    --> src/vm.rs:194:9
[INFO] [stdout]     |
[INFO] [stdout] 194 |     use core::error;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `p3_field::FieldAlgebra`
[INFO] [stdout]    --> src/vm.rs:196:9
[INFO] [stdout]     |
[INFO] [stdout] 196 |     use p3_field::FieldAlgebra;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `p3_mersenne_31::Mersenne31`
[INFO] [stdout]    --> src/vm.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 |     use p3_mersenne_31::Mersenne31;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Instructions` and `VM`
[INFO] [stdout]    --> src/vm.rs:199:21
[INFO] [stdout]     |
[INFO] [stdout] 199 |     use crate::vm::{Instructions, VM};
[INFO] [stdout]     |                     ^^^^^^^^^^^^  ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FieldAlgebra`, `Field`, `PrimeField32`, and `extension::BinomialExtensionField`
[INFO] [stdout]  --> src/lib.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     use p3_field::{extension::BinomialExtensionField, Field, FieldAlgebra, PrimeField32};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | mod test {
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `p3_mersenne_31::Mersenne31`
[INFO] [stdout]  --> src/lib.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     use p3_mersenne_31::Mersenne31;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | mod test {
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Instructions`, `VM`, and `p3::VMAir`
[INFO] [stdout]   --> src/lib.rs:9:9
[INFO] [stdout]    |
[INFO] [stdout] 9  |         p3::VMAir,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 10 |         vm::{Instructions, VM},
[INFO] [stdout]    |              ^^^^^^^^^^^^  ^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]   --> src/lib.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout] 4  | mod test {
[INFO] [stdout]    | ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VMAir` is never constructed
[INFO] [stdout]   --> src/p3.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct VMAir {}
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `generate_proof` is never used
[INFO] [stdout]   --> src/p3.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 83 | impl VMAir {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 84 |     pub fn generate_proof(&self, vm: VM) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_trace` is never used
[INFO] [stdout]    --> src/p3.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub fn get_trace<F: Field>(vm: VM) -> RowMajorMatrix<F> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Instructions` is never used
[INFO] [stdout]  --> src/vm.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum Instructions {
[INFO] [stdout]   |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VMState` is never constructed
[INFO] [stdout]   --> src/vm.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct VMState {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VM` is never constructed
[INFO] [stdout]   --> src/vm.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct VM {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `run`, `perform_operation`, and `get_trace` are never used
[INFO] [stdout]    --> src/vm.rs:32:12
[INFO] [stdout]     |
[INFO] [stdout] 31  | impl VM {
[INFO] [stdout]     | ------- associated items in this implementation
[INFO] [stdout] 32  |     pub fn new(insruction: Vec<Instructions>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 42  |     pub fn run(&mut self) -> Result<(), String> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 81  |     fn perform_operation<F, G>(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |     pub fn get_trace(&self) -> Vec<[Mersenne31; 11]> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/p3.rs:123:9
[INFO] [stdout]     |
[INFO] [stdout] 123 |         verify(&config, self, &mut challenger, &proof, &vec![]);
[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)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 123 |         let _ = verify(&config, self, &mut challenger, &proof, &vec![]);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fs::File` and `io::Read`
[INFO] [stdout]  --> src/p3.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::File, io::Read, marker::PhantomData};
[INFO] [stdout]   |           ^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Proof`
[INFO] [stdout]   --> src/p3.rs:14:35
[INFO] [stdout]    |
[INFO] [stdout] 14 | use p3_uni_stark::{prove, verify, Proof, StarkConfig};
[INFO] [stdout]    |                                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `collections::HashMap`, `fs::File`, and `io::Write`
[INFO] [stdout]  --> src/vm.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::HashMap, fs::File, io::Write};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/vm.rs:85:17
[INFO] [stdout]    |
[INFO] [stdout] 85 |     ) -> Result<(Mersenne31), String>
[INFO] [stdout]    |                 ^          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 85 -     ) -> Result<(Mersenne31), String>
[INFO] [stdout] 85 +     ) -> Result<Mersenne31, String>
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/vm.rs:105:12
[INFO] [stdout]     |
[INFO] [stdout] 105 |         Ok((extra_data))
[INFO] [stdout]     |            ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 105 -         Ok((extra_data))
[INFO] [stdout] 105 +         Ok(extra_data)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::error`
[INFO] [stdout]    --> src/vm.rs:194:9
[INFO] [stdout]     |
[INFO] [stdout] 194 |     use core::error;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Field`, `PrimeField32`, and `extension::BinomialExtensionField`
[INFO] [stdout]  --> src/lib.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     use p3_field::{extension::BinomialExtensionField, Field, FieldAlgebra, PrimeField32};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sp` is never read
[INFO] [stdout]   --> src/vm.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct VM {
[INFO] [stdout]    |            -- field in this struct
[INFO] [stdout] 24 |     stack: [Mersenne31; 4],
[INFO] [stdout] 25 |     sp: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `VM` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/p3.rs:123:9
[INFO] [stdout]     |
[INFO] [stdout] 123 |         verify(&config, self, &mut challenger, &proof, &vec![]);
[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)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 123 |         let _ = verify(&config, self, &mut challenger, &proof, &vec![]);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.88s
[INFO] running `Command { std: "docker" "inspect" "6cd8abb51e1418ff54365273fda3dfdc0d2fafffca67a4b6439c8375344db560", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cd8abb51e1418ff54365273fda3dfdc0d2fafffca67a4b6439c8375344db560", kill_on_drop: false }`
[INFO] [stdout] 6cd8abb51e1418ff54365273fda3dfdc0d2fafffca67a4b6439c8375344db560
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 11236bb78abf351d2b4a81b707b26a5d00d2eb1e50f9f4d293aebf2067d9f327
[INFO] running `Command { std: "docker" "start" "-a" "11236bb78abf351d2b4a81b707b26a5d00d2eb1e50f9f4d293aebf2067d9f327", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `fs::File` and `io::Read`
[INFO] [stderr]  --> src/p3.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{fs::File, io::Read, marker::PhantomData};
[INFO] [stderr]   |           ^^^^^^^^  ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Proof`
[INFO] [stderr]   --> src/p3.rs:14:35
[INFO] [stderr]    |
[INFO] [stderr] 14 | use p3_uni_stark::{prove, verify, Proof, StarkConfig};
[INFO] [stderr]    |                                   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `collections::HashMap`, `fs::File`, and `io::Write`
[INFO] [stderr]  --> src/vm.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{collections::HashMap, fs::File, io::Write};
[INFO] [stderr]   |           ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/vm.rs:85:17
[INFO] [stderr]    |
[INFO] [stderr] 85 |     ) -> Result<(Mersenne31), String>
[INFO] [stderr]    |                 ^          ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 85 -     ) -> Result<(Mersenne31), String>
[INFO] [stderr] 85 +     ) -> Result<Mersenne31, String>
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/vm.rs:105:12
[INFO] [stderr]     |
[INFO] [stderr] 105 |         Ok((extra_data))
[INFO] [stderr]     |            ^          ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 105 -         Ok((extra_data))
[INFO] [stderr] 105 +         Ok(extra_data)
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::error`
[INFO] [stderr]    --> src/vm.rs:194:9
[INFO] [stderr]     |
[INFO] [stderr] 194 |     use core::error;
[INFO] [stderr]     |         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `p3_field::FieldAlgebra`
[INFO] [stderr]    --> src/vm.rs:196:9
[INFO] [stderr]     |
[INFO] [stderr] 196 |     use p3_field::FieldAlgebra;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `p3_mersenne_31::Mersenne31`
[INFO] [stderr]    --> src/vm.rs:197:9
[INFO] [stderr]     |
[INFO] [stderr] 197 |     use p3_mersenne_31::Mersenne31;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Instructions` and `VM`
[INFO] [stderr]    --> src/vm.rs:199:21
[INFO] [stderr]     |
[INFO] [stderr] 199 |     use crate::vm::{Instructions, VM};
[INFO] [stderr]     |                     ^^^^^^^^^^^^  ^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `FieldAlgebra`, `Field`, `PrimeField32`, and `extension::BinomialExtensionField`
[INFO] [stderr]  --> src/lib.rs:5:20
[INFO] [stderr]   |
[INFO] [stderr] 5 |     use p3_field::{extension::BinomialExtensionField, Field, FieldAlgebra, PrimeField32};
[INFO] [stderr]   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stderr]  --> src/lib.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | mod test {
[INFO] [stderr]   | ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `p3_mersenne_31::Mersenne31`
[INFO] [stderr]  --> src/lib.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |     use p3_mersenne_31::Mersenne31;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stderr]  --> src/lib.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | mod test {
[INFO] [stderr]   | ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Instructions`, `VM`, and `p3::VMAir`
[INFO] [stderr]   --> src/lib.rs:9:9
[INFO] [stderr]    |
[INFO] [stderr] 9  |         p3::VMAir,
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr] 10 |         vm::{Instructions, VM},
[INFO] [stderr]    |              ^^^^^^^^^^^^  ^^
[INFO] [stderr]    |
[INFO] [stderr] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stderr]   --> src/lib.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | mod test {
[INFO] [stderr]    | ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `VMAir` is never constructed
[INFO] [stderr]   --> src/p3.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub struct VMAir {}
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `generate_proof` is never used
[INFO] [stderr]   --> src/p3.rs:84:12
[INFO] [stderr]    |
[INFO] [stderr] 83 | impl VMAir {
[INFO] [stderr]    | ---------- method in this implementation
[INFO] [stderr] 84 |     pub fn generate_proof(&self, vm: VM) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `get_trace` is never used
[INFO] [stderr]    --> src/p3.rs:127:8
[INFO] [stderr]     |
[INFO] [stderr] 127 | pub fn get_trace<F: Field>(vm: VM) -> RowMajorMatrix<F> {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Instructions` is never used
[INFO] [stderr]  --> src/vm.rs:7:10
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub enum Instructions {
[INFO] [stderr]   |          ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `VMState` is never constructed
[INFO] [stderr]   --> src/vm.rs:16:12
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub struct VMState {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `VM` is never constructed
[INFO] [stderr]   --> src/vm.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub struct VM {
[INFO] [stderr]    |            ^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `run`, `perform_operation`, and `get_trace` are never used
[INFO] [stderr]    --> src/vm.rs:32:12
[INFO] [stderr]     |
[INFO] [stderr] 31  | impl VM {
[INFO] [stderr]     | ------- associated items in this implementation
[INFO] [stderr] 32  |     pub fn new(insruction: Vec<Instructions>) -> Self {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 42  |     pub fn run(&mut self) -> Result<(), String> {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 81  |     fn perform_operation<F, G>(
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 108 |     pub fn get_trace(&self) -> Vec<[Mersenne31; 11]> {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/p3.rs:123:9
[INFO] [stderr]     |
[INFO] [stderr] 123 |         verify(&config, self, &mut challenger, &proof, &vec![]);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 123 |         let _ = verify(&config, self, &mut challenger, &proof, &vec![]);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Field`, `PrimeField32`, and `extension::BinomialExtensionField`
[INFO] [stderr]  --> src/lib.rs:5:20
[INFO] [stderr]   |
[INFO] [stderr] 5 |     use p3_field::{extension::BinomialExtensionField, Field, FieldAlgebra, PrimeField32};
[INFO] [stderr]   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^                ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `sp` is never read
[INFO] [stderr]   --> src/vm.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub struct VM {
[INFO] [stderr]    |            -- field in this struct
[INFO] [stderr] 24 |     stack: [Mersenne31; 4],
[INFO] [stderr] 25 |     sp: usize,
[INFO] [stderr]    |     ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `VM` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `useless-vm` (lib) generated 20 warnings (run `cargo fix --lib -p useless-vm` to apply 12 suggestions)
[INFO] [stderr] warning: `useless-vm` (lib test) generated 9 warnings (7 duplicates) (run `cargo fix --lib -p useless-vm --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/useless_vm-af6701fc68b1e570)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test vm::tests::check_mul_operation ... ok
[INFO] [stdout] test vm::tests::check_add_operation ... ok
[INFO] [stdout] test vm::tests::check_div_operation ... ok
[INFO] [stdout] test vm::tests::check_sub_operation ... ok
[INFO] [stdout] test test::test_end_to_end ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests useless_vm
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/vm.rs:85:17
[INFO] [stderr]    |
[INFO] [stderr] 85 |     ) -> Result<(Mersenne31), String>
[INFO] [stderr]    |                 ^          ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 85 -     ) -> Result<(Mersenne31), String>
[INFO] [stderr] 85 +     ) -> Result<Mersenne31, String>
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/vm.rs:105:12
[INFO] [stderr]     |
[INFO] [stderr] 105 |         Ok((extra_data))
[INFO] [stderr]     |            ^          ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 105 -         Ok((extra_data))
[INFO] [stderr] 105 +         Ok(extra_data)
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[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" "11236bb78abf351d2b4a81b707b26a5d00d2eb1e50f9f4d293aebf2067d9f327", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11236bb78abf351d2b4a81b707b26a5d00d2eb1e50f9f4d293aebf2067d9f327", kill_on_drop: false }`
[INFO] [stdout] 11236bb78abf351d2b4a81b707b26a5d00d2eb1e50f9f4d293aebf2067d9f327