[INFO] cloning repository https://github.com/usermane6/Matrix-Solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/usermane6/Matrix-Solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fusermane6%2FMatrix-Solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fusermane6%2FMatrix-Solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 468fc2a4d527f7d2ba1aeb0dc6851838abff2016
[INFO] checking usermane6/Matrix-Solver against 416264364aa47959f5827723e1d7dabc95d0744b for pr-162242
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fusermane6%2FMatrix-Solver" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/usermane6/Matrix-Solver
[INFO] finished tweaking git repo https://github.com/usermane6/Matrix-Solver
[INFO] tweaked toml for git repo https://github.com/usermane6/Matrix-Solver written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/usermane6/Matrix-Solver on toolchain 416264364aa47959f5827723e1d7dabc95d0744b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+416264364aa47959f5827723e1d7dabc95d0744b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/usermane6/Matrix-Solver 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" "+416264364aa47959f5827723e1d7dabc95d0744b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: binary `matrix_solver` should have a kebab-case name
[INFO] [stderr]   |
[INFO] [stderr] 1 | /workspace/builds/worker-0-tc2/source/target/.../matrix_solver
[INFO] [stderr]   |                                                  ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `matrix-solver`, convert `package.name`
[INFO] [stderr]  --> Cargo.toml:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 - name = "matrix_solver"
[INFO] [stderr] 5 + name = "matrix-solver"
[INFO] [stderr]   |
[INFO] [stderr] help: to change the binary name to `matrix-solver`, specify `bin.name`
[INFO] [stderr]  --> Cargo.toml:6:19
[INFO] [stderr]   |
[INFO] [stderr] 6 ~ version = "0.1.0"
[INFO] [stderr] 7 + [[bin]]
[INFO] [stderr] 8 + name = "matrix-solver"
[INFO] [stderr] 9 + path = "src/main.rs"
[INFO] [stderr]   |
[INFO] [stderr] warning: `matrix_solver` (manifest) generated 1 warning
[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-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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] 5e15148ca67b2e2d586eac07a5145ee70ddb40395704ce4d6a220214562150c9
[INFO] running `Command { std: "docker" "start" "5e15148ca67b2e2d586eac07a5145ee70ddb40395704ce4d6a220214562150c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e15148ca67b2e2d586eac07a5145ee70ddb40395704ce4d6a220214562150c9", 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" "5e15148ca67b2e2d586eac07a5145ee70ddb40395704ce4d6a220214562150c9" "/opt/rustwide/cargo-home/bin/cargo" "+416264364aa47959f5827723e1d7dabc95d0744b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e15148ca67b2e2d586eac07a5145ee70ddb40395704ce4d6a220214562150c9", 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" "5e15148ca67b2e2d586eac07a5145ee70ddb40395704ce4d6a220214562150c9" "/opt/rustwide/cargo-home/bin/cargo" "+416264364aa47959f5827723e1d7dabc95d0744b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: binary `matrix_solver` should have a kebab-case name
[INFO] [stderr]   |
[INFO] [stderr] 1 | /opt/rustwide/target/.../matrix_solver
[INFO] [stderr]   |                          ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `matrix-solver`, convert `package.name`
[INFO] [stderr]  --> Cargo.toml:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 - name = "matrix_solver"
[INFO] [stderr] 5 + name = "matrix-solver"
[INFO] [stderr]   |
[INFO] [stderr] help: to change the binary name to `matrix-solver`, specify `bin.name`
[INFO] [stderr]  --> Cargo.toml:6:19
[INFO] [stderr]   |
[INFO] [stderr] 6 ~ version = "0.1.0"
[INFO] [stderr] 7 + [[bin]]
[INFO] [stderr] 8 + name = "matrix-solver"
[INFO] [stderr] 9 + path = "src/main.rs"
[INFO] [stderr]   |
[INFO] [stderr] warning: `matrix_solver` (manifest) generated 1 warning
[INFO] [stderr]     Checking matrix_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/matrix.rs:39:21
[INFO] [stdout]    |
[INFO] [stdout] 39 |         if let Some(val) = self.vals.get(id) {
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/matrix.rs:47:21
[INFO] [stdout]    |
[INFO] [stdout] 47 |         if let Some(val) = self.vals.get(id) {
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/matrix.rs:39:21
[INFO] [stdout]    |
[INFO] [stdout] 39 |         if let Some(val) = self.vals.get(id) {
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/matrix.rs:47:21
[INFO] [stdout]    |
[INFO] [stdout] 47 |         if let Some(val) = self.vals.get(id) {
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set` is never used
[INFO] [stdout]   --> src/matrix.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout]  7 | impl Matrix {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn set(&mut self, x:usize, y:usize, new_val: f64) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/solver.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 |     NO(usize, usize)
[INFO] [stdout]   |     -- ^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 5 -     NO(usize, usize)
[INFO] [stdout] 5 +     NO((), usize)
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set` is never used
[INFO] [stdout]   --> src/matrix.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout]  7 | impl Matrix {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn set(&mut self, x:usize, y:usize, new_val: f64) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/solver.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 |     NO(usize, usize)
[INFO] [stdout]   |     -- ^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 5 -     NO(usize, usize)
[INFO] [stdout] 5 +     NO((), usize)
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "5e15148ca67b2e2d586eac07a5145ee70ddb40395704ce4d6a220214562150c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e15148ca67b2e2d586eac07a5145ee70ddb40395704ce4d6a220214562150c9", kill_on_drop: false }`
[INFO] [stdout] 5e15148ca67b2e2d586eac07a5145ee70ddb40395704ce4d6a220214562150c9
