[INFO] cloning repository https://github.com/SaurabhGoyal/rust_labs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SaurabhGoyal/rust_labs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSaurabhGoyal%2Frust_labs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSaurabhGoyal%2Frust_labs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 70a7da1c9a074a20d8c38836a55052111def4f0c
[INFO] testing SaurabhGoyal/rust_labs against master#2fd6efc32704647e64d3d646d21c4c68eae100e4 for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSaurabhGoyal%2Frust_labs" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/SaurabhGoyal/rust_labs
[INFO] finished tweaking git repo https://github.com/SaurabhGoyal/rust_labs
[INFO] tweaked toml for git repo https://github.com/SaurabhGoyal/rust_labs written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SaurabhGoyal/rust_labs on toolchain 2fd6efc32704647e64d3d646d21c4c68eae100e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/SaurabhGoyal/rust_labs 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" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded console v0.15.8
[INFO] [stderr]   Downloaded sysinfo v0.30.12
[INFO] [stderr]   Downloaded unicode-width v0.1.13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d385db98f5fe132336f7a6b6693c16ee6ab304b4039cb3d08b0bfabe040a12f8
[INFO] running `Command { std: "docker" "start" "-a" "d385db98f5fe132336f7a6b6693c16ee6ab304b4039cb3d08b0bfabe040a12f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d385db98f5fe132336f7a6b6693c16ee6ab304b4039cb3d08b0bfabe040a12f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d385db98f5fe132336f7a6b6693c16ee6ab304b4039cb3d08b0bfabe040a12f8", kill_on_drop: false }`
[INFO] [stdout] d385db98f5fe132336f7a6b6693c16ee6ab304b4039cb3d08b0bfabe040a12f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7872e9deb66f86c4af716bf594ee8d8ae15ab74c09fb312bb6e28c153cf6d849
[INFO] running `Command { std: "docker" "start" "-a" "7872e9deb66f86c4af716bf594ee8d8ae15ab74c09fb312bb6e28c153cf6d849", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling proc-macro2 v1.0.85
[INFO] [stderr]    Compiling either v1.12.0
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling unicode-width v0.1.13
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling cpufeatures v0.2.12
[INFO] [stderr]    Compiling bytes v1.6.0
[INFO] [stderr]    Compiling threadpool v0.1.0 (/opt/rustwide/workdir/crates/threadpool)
[INFO] [stderr]    Compiling sudoku_solver v0.1.0 (/opt/rustwide/workdir/crates/sudoku_solver)
[INFO] [stderr]    Compiling sha1 v0.10.6
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]  --> crates/threadpool/src/main.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let (p, job_q, result_q) = ThreadPool::new::<u64>(8);
[INFO] [stdout]   |          ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `buf` is never read
[INFO] [stdout]   --> crates/sudoku_solver/src/sudoku.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct SudokuSolver {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 36 |     buf: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tiny_shell v0.1.0 (/opt/rustwide/workdir/crates/tiny_shell)
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling console v0.15.8
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling regex-automata v0.4.7
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling socket2 v0.5.7
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir/crates/guessing_game)
[INFO] [stderr]    Compiling unbricked v0.1.0 (/opt/rustwide/workdir/crates/unbricked)
[INFO] [stdout] warning: field `index` is never read
[INFO] [stdout]   --> crates/unbricked/src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct Cell {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 40 |     index: Pair,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cell` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `length` is never read
[INFO] [stdout]   --> crates/unbricked/src/main.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct Bat {
[INFO] [stdout]    |        --- field in this struct
[INFO] [stdout] 51 |     index: Pair,
[INFO] [stdout] 52 |     length: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sysinfo v0.30.12
[INFO] [stderr]    Compiling regex v1.10.5
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling serde_derive v1.0.203
[INFO] [stderr]    Compiling tokio-macros v2.3.0
[INFO] [stderr]    Compiling sysinfo_cli v0.1.0 (/opt/rustwide/workdir/crates/sysinfo_cli)
[INFO] [stderr]    Compiling tokio v1.38.0
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling futures-executor v0.3.30
[INFO] [stderr]    Compiling futures v0.3.30
[INFO] [stderr]    Compiling conc_adder v0.1.0 (/opt/rustwide/workdir/crates/conc_adder)
[INFO] [stderr]    Compiling win_tree v0.1.4 (/opt/rustwide/workdir/crates/win_tree)
[INFO] [stderr]    Compiling cprs v0.1.0 (/opt/rustwide/workdir/crates/cprs)
[INFO] [stderr]    Compiling temp v0.1.0 (/opt/rustwide/workdir/crates/temp)
[INFO] [stdout] warning: fields `total_count` and `folder_count` are never read
[INFO] [stdout]   --> crates/cprs/src/main.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 77 | struct State {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 78 |     total_count: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 79 |     file_count: u64,
[INFO] [stdout] 80 |     folder_count: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `State` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Actor` is never used
[INFO] [stdout]  --> crates/temp/src/actor.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | trait Actor {
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Executor` is never constructed
[INFO] [stdout]  --> crates/temp/src/actor.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Executor {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `run` is never used
[INFO] [stdout]   --> crates/temp/src/actor.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Executor {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] 13 |     pub fn run(&mut self) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Timer` is never constructed
[INFO] [stdout]   --> crates/temp/src/actor.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct Timer {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> crates/temp/src/actor.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl Timer {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 30 |     fn new(dur_ms: u64) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> crates/temp/src/actor.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> crates/temp/src/hashing.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Future` is never used
[INFO] [stdout]  --> crates/temp/src/simple_future.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | trait Future {
[INFO] [stdout]   |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Poll` is never used
[INFO] [stdout]  --> crates/temp/src/simple_future.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | enum Poll {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Executor` is never constructed
[INFO] [stdout]   --> crates/temp/src/simple_future.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Executor {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `run` is never used
[INFO] [stdout]   --> crates/temp/src/simple_future.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Executor {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] 17 |     pub fn run(&mut self) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Timer` is never constructed
[INFO] [stdout]   --> crates/temp/src/simple_future.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct Timer {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> crates/temp/src/simple_future.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl Timer {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 44 |     fn new(dur_ms: u64, max_ms: u64) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> crates/temp/src/simple_future.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> crates/temp/src/tcp_concurrency.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> crates/temp/src/tokio_single_thread.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | async fn main() {
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> crates/temp/src/tokio_single_thread.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 03s
[INFO] running `Command { std: "docker" "inspect" "7872e9deb66f86c4af716bf594ee8d8ae15ab74c09fb312bb6e28c153cf6d849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7872e9deb66f86c4af716bf594ee8d8ae15ab74c09fb312bb6e28c153cf6d849", kill_on_drop: false }`
[INFO] [stdout] 7872e9deb66f86c4af716bf594ee8d8ae15ab74c09fb312bb6e28c153cf6d849
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b6fc8a7ae1c01408dd4d435573643a56a34bd8d38b86a061a4f069aee7b5239
[INFO] running `Command { std: "docker" "start" "-a" "2b6fc8a7ae1c01408dd4d435573643a56a34bd8d38b86a061a4f069aee7b5239", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stdout] warning: field `buf` is never read
[INFO] [stdout]   --> crates/sudoku_solver/src/sudoku.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct SudokuSolver {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 36 |     buf: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling unbricked v0.1.0 (/opt/rustwide/workdir/crates/unbricked)
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir/crates/guessing_game)
[INFO] [stderr]    Compiling threadpool v0.1.0 (/opt/rustwide/workdir/crates/threadpool)
[INFO] [stderr]    Compiling win_tree v0.1.4 (/opt/rustwide/workdir/crates/win_tree)
[INFO] [stderr]    Compiling sysinfo_cli v0.1.0 (/opt/rustwide/workdir/crates/sysinfo_cli)
[INFO] [stderr]    Compiling temp v0.1.0 (/opt/rustwide/workdir/crates/temp)
[INFO] [stderr]    Compiling cprs v0.1.0 (/opt/rustwide/workdir/crates/cprs)
[INFO] [stderr]    Compiling sudoku_solver v0.1.0 (/opt/rustwide/workdir/crates/sudoku_solver)
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]  --> crates/threadpool/src/main.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let (p, job_q, result_q) = ThreadPool::new::<u64>(8);
[INFO] [stdout]   |          ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `index` is never read
[INFO] [stdout]   --> crates/unbricked/src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct Cell {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 40 |     index: Pair,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cell` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `length` is never read
[INFO] [stdout]   --> crates/unbricked/src/main.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct Bat {
[INFO] [stdout]    |        --- field in this struct
[INFO] [stdout] 51 |     index: Pair,
[INFO] [stdout] 52 |     length: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Actor` is never used
[INFO] [stdout]  --> crates/temp/src/actor.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | trait Actor {
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Executor` is never constructed
[INFO] [stdout]  --> crates/temp/src/actor.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Executor {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `run` is never used
[INFO] [stdout]   --> crates/temp/src/actor.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Executor {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] 13 |     pub fn run(&mut self) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Timer` is never constructed
[INFO] [stdout]   --> crates/temp/src/actor.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct Timer {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> crates/temp/src/actor.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl Timer {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 30 |     fn new(dur_ms: u64) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> crates/temp/src/actor.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> crates/temp/src/hashing.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Future` is never used
[INFO] [stdout]  --> crates/temp/src/simple_future.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | trait Future {
[INFO] [stdout]   |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Poll` is never used
[INFO] [stdout]  --> crates/temp/src/simple_future.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | enum Poll {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Executor` is never constructed
[INFO] [stdout]   --> crates/temp/src/simple_future.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Executor {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `run` is never used
[INFO] [stdout]   --> crates/temp/src/simple_future.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Executor {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] 17 |     pub fn run(&mut self) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Timer` is never constructed
[INFO] [stdout]   --> crates/temp/src/simple_future.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct Timer {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> crates/temp/src/simple_future.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl Timer {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 44 |     fn new(dur_ms: u64, max_ms: u64) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> crates/temp/src/simple_future.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> crates/temp/src/tcp_concurrency.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> crates/temp/src/tokio_single_thread.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | async fn main() {
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> crates/temp/src/tokio_single_thread.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling conc_adder v0.1.0 (/opt/rustwide/workdir/crates/conc_adder)
[INFO] [stdout] warning: fields `total_count` and `folder_count` are never read
[INFO] [stdout]   --> crates/cprs/src/main.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 77 | struct State {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 78 |     total_count: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 79 |     file_count: u64,
[INFO] [stdout] 80 |     folder_count: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `State` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tiny_shell v0.1.0 (/opt/rustwide/workdir/crates/tiny_shell)
[INFO] [stdout] warning: field `buf` is never read
[INFO] [stdout]   --> crates/sudoku_solver/src/sudoku.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct SudokuSolver {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 36 |     buf: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.69s
[INFO] running `Command { std: "docker" "inspect" "2b6fc8a7ae1c01408dd4d435573643a56a34bd8d38b86a061a4f069aee7b5239", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b6fc8a7ae1c01408dd4d435573643a56a34bd8d38b86a061a4f069aee7b5239", kill_on_drop: false }`
[INFO] [stdout] 2b6fc8a7ae1c01408dd4d435573643a56a34bd8d38b86a061a4f069aee7b5239
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ca7e55244106ab7e1679957df1e779cac53625cd661d5d036aec1daba416be74
[INFO] running `Command { std: "docker" "start" "-a" "ca7e55244106ab7e1679957df1e779cac53625cd661d5d036aec1daba416be74", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr] warning: field `buf` is never read
[INFO] [stderr]   --> crates/sudoku_solver/src/sudoku.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub struct SudokuSolver {
[INFO] [stderr]    |            ------------ field in this struct
[INFO] [stderr] 36 |     buf: String,
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `sudoku_solver` (lib) generated 1 warning
[INFO] [stderr] warning: field `index` is never read
[INFO] [stderr]   --> crates/unbricked/src/main.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 39 | struct Cell {
[INFO] [stderr]    |        ---- field in this struct
[INFO] [stderr] 40 |     index: Pair,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Cell` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `length` is never read
[INFO] [stderr]   --> crates/unbricked/src/main.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 50 | struct Bat {
[INFO] [stderr]    |        --- field in this struct
[INFO] [stderr] 51 |     index: Pair,
[INFO] [stderr] 52 |     length: usize,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `unbricked` (bin "unbricked" test) generated 2 warnings
[INFO] [stderr] warning: fields `total_count` and `folder_count` are never read
[INFO] [stderr]   --> crates/cprs/src/main.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 77 | struct State {
[INFO] [stderr]    |        ----- fields in this struct
[INFO] [stderr] 78 |     total_count: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 79 |     file_count: u64,
[INFO] [stderr] 80 |     folder_count: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `State` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]  --> crates/threadpool/src/main.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let (p, job_q, result_q) = ThreadPool::new::<u64>(8);
[INFO] [stderr]   |          ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `cprs` (bin "cprs" test) generated 1 warning
[INFO] [stderr] warning: `threadpool` (bin "threadpool" test) generated 1 warning (run `cargo fix --bin "threadpool" -p threadpool --tests` to apply 1 suggestion)
[INFO] [stderr] warning: trait `Actor` is never used
[INFO] [stderr]  --> crates/temp/src/actor.rs:3:7
[INFO] [stderr]   |
[INFO] [stderr] 3 | trait Actor {
[INFO] [stderr]   |       ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Executor` is never constructed
[INFO] [stderr]  --> crates/temp/src/actor.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | struct Executor {
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `run` is never used
[INFO] [stderr]   --> crates/temp/src/actor.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl Executor {
[INFO] [stderr]    | ------------- method in this implementation
[INFO] [stderr] 13 |     pub fn run(&mut self) {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Timer` is never constructed
[INFO] [stderr]   --> crates/temp/src/actor.rs:24:8
[INFO] [stderr]    |
[INFO] [stderr] 24 | struct Timer {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> crates/temp/src/actor.rs:30:8
[INFO] [stderr]    |
[INFO] [stderr] 29 | impl Timer {
[INFO] [stderr]    | ---------- associated function in this implementation
[INFO] [stderr] 30 |     fn new(dur_ms: u64) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> crates/temp/src/actor.rs:52:8
[INFO] [stderr]    |
[INFO] [stderr] 52 | pub fn run() {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]  --> crates/temp/src/hashing.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn run() {
[INFO] [stderr]   |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Future` is never used
[INFO] [stderr]  --> crates/temp/src/simple_future.rs:3:7
[INFO] [stderr]   |
[INFO] [stderr] 3 | trait Future {
[INFO] [stderr]   |       ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Poll` is never used
[INFO] [stderr]  --> crates/temp/src/simple_future.rs:7:6
[INFO] [stderr]   |
[INFO] [stderr] 7 | enum Poll {
[INFO] [stderr]   |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Executor` is never constructed
[INFO] [stderr]   --> crates/temp/src/simple_future.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 | struct Executor {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `run` is never used
[INFO] [stderr]   --> crates/temp/src/simple_future.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 16 | impl Executor {
[INFO] [stderr]    | ------------- method in this implementation
[INFO] [stderr] 17 |     pub fn run(&mut self) {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Timer` is never constructed
[INFO] [stderr]   --> crates/temp/src/simple_future.rs:36:8
[INFO] [stderr]    |
[INFO] [stderr] 36 | struct Timer {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> crates/temp/src/simple_future.rs:44:8
[INFO] [stderr]    |
[INFO] [stderr] 43 | impl Timer {
[INFO] [stderr]    | ---------- associated function in this implementation
[INFO] [stderr] 44 |     fn new(dur_ms: u64, max_ms: u64) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> crates/temp/src/simple_future.rs:73:8
[INFO] [stderr]    |
[INFO] [stderr] 73 | pub fn run() {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]  --> crates/temp/src/tcp_concurrency.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn run() {
[INFO] [stderr]   |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> crates/temp/src/tokio_single_thread.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | async fn main() {
[INFO] [stderr]   |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> crates/temp/src/tokio_single_thread.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn run() {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `temp` (bin "temp" test) generated 17 warnings
[INFO] [stderr] warning: `sudoku_solver` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/conc_adder-eb02766965d2e587)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/cprs-98b6f3d7310c9560)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/guessing_game-ec402ebfcad786e9)
[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] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sudoku_solver-ab2a667946fbc1ca)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::correctness ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::correctness stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::correctness' (20) panicked at crates/sudoku_solver/src/lib.rs:17:10:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x639cc39ee142 - std[716c9a7a72e5c14e]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x639cc39ee142 - std[716c9a7a72e5c14e]::backtrace_rs::backtrace::trace_unsynchronized::<std[716c9a7a72e5c14e]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x639cc39ee142 - std[716c9a7a72e5c14e]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x639cc39ee142 - <<std[716c9a7a72e5c14e]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[c5ed12ab89cc536a]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x639cc3a02b3a - <core[c5ed12ab89cc536a]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x639cc3a02b3a - core[c5ed12ab89cc536a]::fmt::write
[INFO] [stdout]    6:     0x639cc39f2f76 - std[716c9a7a72e5c14e]::io::default_write_fmt::<alloc[9c68fdf4f4f29218]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x639cc39f2f76 - <alloc[9c68fdf4f4f29218]::vec::Vec<u8> as std[716c9a7a72e5c14e]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x639cc39cc19f - <std[716c9a7a72e5c14e]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x639cc39cc19f - std[716c9a7a72e5c14e]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x639cc39e5fb9 - std[716c9a7a72e5c14e]::panicking::default_hook
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x639cc39814ee - <alloc[9c68fdf4f4f29218]::boxed::Box<dyn for<'a, 'b> core[c5ed12ab89cc536a]::ops::function::Fn<(&'a std[716c9a7a72e5c14e]::panic::PanicHookInfo<'b>,), Output = ()> + core[c5ed12ab89cc536a]::marker::Sync + core[c5ed12ab89cc536a]::marker::Send> as core[c5ed12ab89cc536a]::ops::function::Fn<(&std[716c9a7a72e5c14e]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x639cc39814ee - test[64760d2bdea328cc]::test_main_with_exit_callback::<test[64760d2bdea328cc]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x639cc39e6172 - <alloc[9c68fdf4f4f29218]::boxed::Box<dyn for<'a, 'b> core[c5ed12ab89cc536a]::ops::function::Fn<(&'a std[716c9a7a72e5c14e]::panic::PanicHookInfo<'b>,), Output = ()> + core[c5ed12ab89cc536a]::marker::Sync + core[c5ed12ab89cc536a]::marker::Send> as core[c5ed12ab89cc536a]::ops::function::Fn<(&std[716c9a7a72e5c14e]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x639cc39e6172 - std[716c9a7a72e5c14e]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x639cc39cc258 - std[716c9a7a72e5c14e]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x639cc39c3b29 - std[716c9a7a72e5c14e]::sys::backtrace::__rust_end_short_backtrace::<std[716c9a7a72e5c14e]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x639cc39cd0ad - __rustc[4f0b026143eab78e]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x639cc3a031ec - core[c5ed12ab89cc536a]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x639cc3a02fc2 - core[c5ed12ab89cc536a]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/result.rs:1867:5
[INFO] [stdout]   20:     0x639cc3951ed0 - <core[c5ed12ab89cc536a]::result::Result<alloc[9c68fdf4f4f29218]::string::String, std[716c9a7a72e5c14e]::io::error::Error>>::unwrap
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/result.rs:1233:23
[INFO] [stdout]   21:     0x639cc3951ed0 - sudoku_solver[f47b7a8d90050acd]::tests::correctness
[INFO] [stdout]                                at /opt/rustwide/workdir/crates/sudoku_solver/src/lib.rs:17:10
[INFO] [stdout]   22:     0x639cc3951637 - sudoku_solver[f47b7a8d90050acd]::tests::correctness::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/crates/sudoku_solver/src/lib.rs:12:21
[INFO] [stdout]   23:     0x639cc3971ef6 - <sudoku_solver[f47b7a8d90050acd]::tests::correctness::{closure#0} as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x639cc397589b - <fn() -> core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String> as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x639cc397589b - test[64760d2bdea328cc]::__rust_begin_short_backtrace::<core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>, fn() -> core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x639cc39820fa - test[64760d2bdea328cc]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x639cc39820fa - <core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<test[64760d2bdea328cc]::run_test_in_process::{closure#0}> as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x639cc39820fa - std[716c9a7a72e5c14e]::panicking::catch_unwind::do_call::<core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<test[64760d2bdea328cc]::run_test_in_process::{closure#0}>, core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x639cc39820fa - std[716c9a7a72e5c14e]::panicking::catch_unwind::<core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>, core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<test[64760d2bdea328cc]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x639cc39820fa - std[716c9a7a72e5c14e]::panic::catch_unwind::<core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<test[64760d2bdea328cc]::run_test_in_process::{closure#0}>, core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x639cc39820fa - test[64760d2bdea328cc]::run_test_in_process
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x639cc39820fa - test[64760d2bdea328cc]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x639cc397c5c4 - test[64760d2bdea328cc]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x639cc397c5c4 - std[716c9a7a72e5c14e]::sys::backtrace::__rust_begin_short_backtrace::<test[64760d2bdea328cc]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x639cc3984bf2 - std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked::<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   36:     0x639cc3984bf2 - <core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x639cc3984bf2 - std[716c9a7a72e5c14e]::panicking::catch_unwind::do_call::<core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:581:40
[INFO] [stdout]   38:     0x639cc3984bf2 - std[716c9a7a72e5c14e]::panicking::catch_unwind::<(), core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x639cc3984bf2 - std[716c9a7a72e5c14e]::panic::catch_unwind::<core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x639cc3984bf2 - std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked::<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   41:     0x639cc3984bf2 - <std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1} as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x639cc39ed64f - <alloc[9c68fdf4f4f29218]::boxed::Box<dyn core[c5ed12ab89cc536a]::ops::function::FnOnce<(), Output = ()> + core[c5ed12ab89cc536a]::marker::Send> as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   43:     0x639cc39ed64f - <std[716c9a7a72e5c14e]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   44:     0x71b465085aa4 - <unknown>
[INFO] [stdout]   45:     0x71b465112a64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::correctness
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `-p sudoku_solver --lib`
[INFO] running `Command { std: "docker" "inspect" "ca7e55244106ab7e1679957df1e779cac53625cd661d5d036aec1daba416be74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca7e55244106ab7e1679957df1e779cac53625cd661d5d036aec1daba416be74", kill_on_drop: false }`
[INFO] [stdout] ca7e55244106ab7e1679957df1e779cac53625cd661d5d036aec1daba416be74
