[INFO] cloning repository https://github.com/sougyo/hello_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sougyo/hello_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsougyo%2Fhello_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsougyo%2Fhello_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e5920730540a4cffb78e2617f820870a749c803b
[INFO] checking sougyo/hello_rust against master#9bfa31f632912180dc742809bcc51a97f2d7079d for pr-140151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsougyo%2Fhello_rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sougyo/hello_rust on toolchain 9bfa31f632912180dc742809bcc51a97f2d7079d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sougyo/hello_rust
[INFO] finished tweaking git repo https://github.com/sougyo/hello_rust
[INFO] tweaked toml for git repo https://github.com/sougyo/hello_rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/sougyo/hello_rust 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" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae5d05843fdf2ee255e0eebf36f9889fe41f60dd996d14265d6b0888636a67a8
[INFO] running `Command { std: "docker" "start" "-a" "ae5d05843fdf2ee255e0eebf36f9889fe41f60dd996d14265d6b0888636a67a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae5d05843fdf2ee255e0eebf36f9889fe41f60dd996d14265d6b0888636a67a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae5d05843fdf2ee255e0eebf36f9889fe41f60dd996d14265d6b0888636a67a8", kill_on_drop: false }`
[INFO] [stdout] ae5d05843fdf2ee255e0eebf36f9889fe41f60dd996d14265d6b0888636a67a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37795b77ee1d8b438d5d80836c72b17abae9a7d5a0daf3abbc5891cd5559bed9
[INFO] running `Command { std: "docker" "start" "-a" "37795b77ee1d8b438d5d80836c72b17abae9a7d5a0daf3abbc5891cd5559bed9", kill_on_drop: false }`
[INFO] [stderr]     Checking hello_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::program_counter::ProgramCounter`
[INFO] [stdout]  --> src/components/alu.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use super::program_counter::ProgramCounter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::program_counter::ProgramCounter`
[INFO] [stdout]  --> src/components/alu.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use super::program_counter::ProgramCounter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ALU4Bit`, `OP_LOAD`, `OP_STORE`, `bool_array_to_u8`, and `u8_to_bool_array`
[INFO] [stdout]  --> src/components/program_counter.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::components::{alu::{ALU4Bit, OP_LOAD, OP_STORE}, gates::{bool_array_to_u8, u8_to_bool_array}};
[INFO] [stdout]   |                               ^^^^^^^  ^^^^^^^  ^^^^^^^^           ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pc`
[INFO] [stdout]   --> src/components/program_counter.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let mut pc = ProgramCounter::new();
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_pc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/components/program_counter.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let mut pc = ProgramCounter::new();
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::program_counter::ProgramCounter`
[INFO] [stdout]  --> src/components/alu.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use super::program_counter::ProgramCounter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ALU4Bit`, `OP_LOAD`, `OP_STORE`, `bool_array_to_u8`, and `u8_to_bool_array`
[INFO] [stdout]  --> src/components/program_counter.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::components::{alu::{ALU4Bit, OP_LOAD, OP_STORE}, gates::{bool_array_to_u8, u8_to_bool_array}};
[INFO] [stdout]   |                               ^^^^^^^  ^^^^^^^  ^^^^^^^^           ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::program_counter::ProgramCounter`
[INFO] [stdout]  --> src/components/alu.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use super::program_counter::ProgramCounter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pc`
[INFO] [stdout]   --> src/components/program_counter.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let mut pc = ProgramCounter::new();
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_pc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/components/program_counter.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let mut pc = ProgramCounter::new();
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nand_gate` is never used
[INFO] [stdout]  --> src/components/gates.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn nand_gate(a: bool, b: bool) -> bool { !(a && b) }
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `not_gate` is never used
[INFO] [stdout]  --> src/components/gates.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn not_gate(a: bool) -> bool { !a }
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_reg_b` is never used
[INFO] [stdout]    --> src/components/alu.rs:121:12
[INFO] [stdout]     |
[INFO] [stdout] 54  | impl ALU4Bit {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 121 |     pub fn get_reg_b(&self) -> [bool; 4] {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set` is never used
[INFO] [stdout]   --> src/components/program_counter.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl ProgramCounter {
[INFO] [stdout]    | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn set(&mut self, address: u16) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nand_gate` is never used
[INFO] [stdout]  --> src/components/gates.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn nand_gate(a: bool, b: bool) -> bool { !(a && b) }
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `not_gate` is never used
[INFO] [stdout]  --> src/components/gates.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn not_gate(a: bool) -> bool { !a }
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_reg_a` and `get_reg_b` are never used
[INFO] [stdout]    --> src/components/alu.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 54  | impl ALU4Bit {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 117 |     pub fn get_reg_a(&self) -> [bool; 4] {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 |     pub fn get_reg_b(&self) -> [bool; 4] {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set` is never used
[INFO] [stdout]   --> src/components/program_counter.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl ProgramCounter {
[INFO] [stdout]    | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn set(&mut self, address: u16) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "37795b77ee1d8b438d5d80836c72b17abae9a7d5a0daf3abbc5891cd5559bed9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37795b77ee1d8b438d5d80836c72b17abae9a7d5a0daf3abbc5891cd5559bed9", kill_on_drop: false }`
[INFO] [stdout] 37795b77ee1d8b438d5d80836c72b17abae9a7d5a0daf3abbc5891cd5559bed9
