[INFO] fetching crate computils 0.1.0...
[INFO] checking computils-0.1.0 against ba28ff76f353a722f31c4f3dd2ac4e437d36411b for pr-160780
[INFO] extracting crate computils 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate computils 0.1.0
[INFO] finished tweaking crates.io crate computils 0.1.0
[INFO] tweaked toml for crates.io crate computils 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate computils 0.1.0 on toolchain ba28ff76f353a722f31c4f3dd2ac4e437d36411b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ba28ff76f353a722f31c4f3dd2ac4e437d36411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate computils 0.1.0 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" "+ba28ff76f353a722f31c4f3dd2ac4e437d36411b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded matrixmultiply v0.3.10
[INFO] [stderr]   Downloaded ndarray v0.17.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 2184b8336bb22146bc207004c60af852017d26158fea494498508be657d5efd7
[INFO] running `Command { std: "docker" "start" "2184b8336bb22146bc207004c60af852017d26158fea494498508be657d5efd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2184b8336bb22146bc207004c60af852017d26158fea494498508be657d5efd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2184b8336bb22146bc207004c60af852017d26158fea494498508be657d5efd7" "/opt/rustwide/cargo-home/bin/cargo" "+ba28ff76f353a722f31c4f3dd2ac4e437d36411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2184b8336bb22146bc207004c60af852017d26158fea494498508be657d5efd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2184b8336bb22146bc207004c60af852017d26158fea494498508be657d5efd7" "/opt/rustwide/cargo-home/bin/cargo" "+ba28ff76f353a722f31c4f3dd2ac4e437d36411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking itertools v0.14.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking ndarray v0.17.1
[INFO] [stderr]     Checking computils v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `BinaryTree` is never constructed
[INFO] [stdout]  --> src/tree/binary.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct BinaryTree {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert`, and `inorder` are never used
[INFO] [stdout]   --> src/tree/binary.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl BinaryTree {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 11 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     fn insert(&mut self, val: isize) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn inorder(node: Option<Rc<RefCell<TreeNode>>>) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Matrix` is never constructed
[INFO] [stdout]  --> src/math/matrix.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Matrix {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/math/matrix.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Matrix {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 11 |     fn new(rows: usize, cols: usize) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn identity(n: usize) -> Self {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     fn add(&self, other: &Matrix) -> Matrix {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     fn sub(&self, other: &Matrix) -> Matrix {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     fn mul(&self, other: &Matrix) -> Matrix {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     fn transpose(&self) -> Matrix {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78 |     fn print(&self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BinaryTree` is never constructed
[INFO] [stdout]  --> src/tree/binary.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct BinaryTree {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert`, and `inorder` are never used
[INFO] [stdout]   --> src/tree/binary.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl BinaryTree {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 11 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     fn insert(&mut self, val: isize) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn inorder(node: Option<Rc<RefCell<TreeNode>>>) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Matrix` is never constructed
[INFO] [stdout]  --> src/math/matrix.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Matrix {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/math/matrix.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Matrix {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 11 |     fn new(rows: usize, cols: usize) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn identity(n: usize) -> Self {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     fn add(&self, other: &Matrix) -> Matrix {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     fn sub(&self, other: &Matrix) -> Matrix {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     fn mul(&self, other: &Matrix) -> Matrix {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     fn transpose(&self) -> Matrix {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78 |     fn print(&self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.33s
[INFO] running `Command { std: "docker" "inspect" "2184b8336bb22146bc207004c60af852017d26158fea494498508be657d5efd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2184b8336bb22146bc207004c60af852017d26158fea494498508be657d5efd7", kill_on_drop: false }`
[INFO] [stdout] 2184b8336bb22146bc207004c60af852017d26158fea494498508be657d5efd7
