[INFO] cloning repository https://github.com/anott03/linear_algebra
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anott03/linear_algebra" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanott03%2Flinear_algebra", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanott03%2Flinear_algebra'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8ae07753a2989ef0ec1af9fd6bd3c4d776c53de6
[INFO] checking anott03/linear_algebra against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanott03%2Flinear_algebra" "/workspace/builds/worker-18/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-18/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anott03/linear_algebra on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/anott03/linear_algebra
[INFO] finished tweaking git repo https://github.com/anott03/linear_algebra
[INFO] tweaked toml for git repo https://github.com/anott03/linear_algebra written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] crate git repo https://github.com/anott03/linear_algebra already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 320419b9b2568cbe771274db13b28a360ad5da76695379354cf373476759581e
[INFO] running `Command { std: "docker" "start" "-a" "320419b9b2568cbe771274db13b28a360ad5da76695379354cf373476759581e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "320419b9b2568cbe771274db13b28a360ad5da76695379354cf373476759581e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "320419b9b2568cbe771274db13b28a360ad5da76695379354cf373476759581e", kill_on_drop: false }`
[INFO] [stdout] 320419b9b2568cbe771274db13b28a360ad5da76695379354cf373476759581e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72655615d4f1cd1b78e24725b4322d6ea8c8191bb96c8452d9a0408e5efeb5a6
[INFO] running `Command { std: "docker" "start" "-a" "72655615d4f1cd1b78e24725b4322d6ea8c8191bb96c8452d9a0408e5efeb5a6", kill_on_drop: false }`
[INFO] [stderr]     Checking linear_algebra v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `dot_product`
[INFO] [stdout]   --> src/vector/mod.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn dot_product(a: &Vec<i32>, b: &Vec<i32>) -> Result<i32, String> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `projection`
[INFO] [stdout]   --> src/vector/mod.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn projection(v: &Vec<i32>, w: &Vec<i32>) -> Result<Vec<i32>, String> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `projection_onto_basis`
[INFO] [stdout]   --> src/vector/mod.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn projection_onto_basis(v: &Vec<i32>, basis: &Vec<Vec<i32>>) -> Result<Vec<i32>, String> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `vector_addition`
[INFO] [stdout]   --> src/vector/mod.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn vector_addition(v: &Vec<i32>, w: &Vec<i32>) -> Result<Vec<i32>, String> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `vector_subtraction`
[INFO] [stdout]   --> src/vector/mod.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn vector_subtraction(v: &Vec<i32>, w: &Vec<i32>) -> Result<Vec<i32>, String> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `check_orthogonal_basis`
[INFO] [stdout]   --> src/vector/mod.rs:85:12
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub fn check_orthogonal_basis(basis: &Vec<Vec<i32>>) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `linear_regression`
[INFO] [stdout]   --> src/vector/mod.rs:99:12
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn linear_regression(_x: &Vec<i32>, _y: &Vec<i32>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `vector_subtraction`
[INFO] [stdout]   --> src/vector/mod.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn vector_subtraction(v: &Vec<i32>, w: &Vec<i32>) -> Result<Vec<i32>, String> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `linear_regression`
[INFO] [stdout]   --> src/vector/mod.rs:99:12
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn linear_regression(_x: &Vec<i32>, _y: &Vec<i32>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "72655615d4f1cd1b78e24725b4322d6ea8c8191bb96c8452d9a0408e5efeb5a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72655615d4f1cd1b78e24725b4322d6ea8c8191bb96c8452d9a0408e5efeb5a6", kill_on_drop: false }`
[INFO] [stdout] 72655615d4f1cd1b78e24725b4322d6ea8c8191bb96c8452d9a0408e5efeb5a6