[INFO] cloning repository https://github.com/Nshivareddy05/rnum
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nshivareddy05/rnum" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNshivareddy05%2Frnum", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNshivareddy05%2Frnum'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 232af69bc9c50cbb089c46cc233260ad8ceaecea
[INFO] checking Nshivareddy05/rnum against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNshivareddy05%2Frnum" "/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/Nshivareddy05/rnum
[INFO] finished tweaking git repo https://github.com/Nshivareddy05/rnum
[INFO] tweaked toml for git repo https://github.com/Nshivareddy05/rnum written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Nshivareddy05/rnum on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Nshivareddy05/rnum 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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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_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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 31165606a3c10d5add7dbd6084c2f9f4a00a851c8bb7c2d260a29e276f94e6f4
[INFO] running `Command { std: "docker" "start" "-a" "31165606a3c10d5add7dbd6084c2f9f4a00a851c8bb7c2d260a29e276f94e6f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31165606a3c10d5add7dbd6084c2f9f4a00a851c8bb7c2d260a29e276f94e6f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31165606a3c10d5add7dbd6084c2f9f4a00a851c8bb7c2d260a29e276f94e6f4", kill_on_drop: false }`
[INFO] [stdout] 31165606a3c10d5add7dbd6084c2f9f4a00a851c8bb7c2d260a29e276f94e6f4
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6257116fc79cff1586d072d8caefd5a20d2ce6c42e619d87f48d8f3efbaa9294
[INFO] running `Command { std: "docker" "start" "-a" "6257116fc79cff1586d072d8caefd5a20d2ce6c42e619d87f48d8f3efbaa9294", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking rnum v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `rnum` (bin "rnum") due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `NdArray` is never constructed
[INFO] [stdout]  --> src/main.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct NdArray<T> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]   = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `data`, `shape`, and `strides` are never read
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct NdArray<T> {
[INFO] [stdout]   |            ------- fields in this struct
[INFO] [stdout] 6 |     data: Vec<T>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 7 |     shape: Vec<usize>,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 8 |     strides: Vec<usize>,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `NdArray` has derived impls for the traits `Clone` and `Debug`, but these are 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: associated functions `new_arr`, `zeros`, and `ones` are never used
[INFO] [stdout]   --> src/main.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | / impl<T> NdArray<T>
[INFO] [stdout] 12 | | where
[INFO] [stdout] 13 | |     T: Copy + Clone + Zero + One,
[INFO] [stdout]    | |_________________________________- associated functions in this implementation
[INFO] [stdout] 14 |   {
[INFO] [stdout] 15 |       fn new_arr(data: Vec<T>) -> Self {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |       fn zeros(len: usize) -> Self {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |       fn ones(len: usize) -> Self {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_generic` is never used
[INFO] [stdout]   --> src/main.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn add_generic<T>(a: &NdArray<T>, b: &NdArray<T>) -> NdArray<T>
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `NdArray` is never constructed
[INFO] [stdout]  --> src/main.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct NdArray<T> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]   = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `data`, `shape`, and `strides` are never read
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct NdArray<T> {
[INFO] [stdout]   |            ------- fields in this struct
[INFO] [stdout] 6 |     data: Vec<T>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 7 |     shape: Vec<usize>,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 8 |     strides: Vec<usize>,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `NdArray` has derived impls for the traits `Clone` and `Debug`, but these are 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: associated functions `new_arr`, `zeros`, and `ones` are never used
[INFO] [stdout]   --> src/main.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | / impl<T> NdArray<T>
[INFO] [stdout] 12 | | where
[INFO] [stdout] 13 | |     T: Copy + Clone + Zero + One,
[INFO] [stdout]    | |_________________________________- associated functions in this implementation
[INFO] [stdout] 14 |   {
[INFO] [stdout] 15 |       fn new_arr(data: Vec<T>) -> Self {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |       fn zeros(len: usize) -> Self {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |       fn ones(len: usize) -> Self {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_generic` is never used
[INFO] [stdout]   --> src/main.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn add_generic<T>(a: &NdArray<T>, b: &NdArray<T>) -> NdArray<T>
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rnum` (bin "rnum" test) due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "6257116fc79cff1586d072d8caefd5a20d2ce6c42e619d87f48d8f3efbaa9294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6257116fc79cff1586d072d8caefd5a20d2ce6c42e619d87f48d8f3efbaa9294", kill_on_drop: false }`
[INFO] [stdout] 6257116fc79cff1586d072d8caefd5a20d2ce6c42e619d87f48d8f3efbaa9294
