[INFO] cloning repository https://github.com/clauer23/rust-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/clauer23/rust-linear-algebra" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclauer23%2Frust-linear-algebra", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclauer23%2Frust-linear-algebra'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ffbd0ed3a103acc5c7fb38c134cccd2b1e15b941
[INFO] checking clauer23/rust-linear-algebra/ffbd0ed3a103acc5c7fb38c134cccd2b1e15b941 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclauer23%2Frust-linear-algebra" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/clauer23/rust-linear-algebra on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/clauer23/rust-linear-algebra
[INFO] finished tweaking git repo https://github.com/clauer23/rust-linear-algebra
[INFO] tweaked toml for git repo https://github.com/clauer23/rust-linear-algebra written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/clauer23/rust-linear-algebra 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c5c33c9c9ff2ddd255bb3a9d4738b76632fffbfe09a589a247a0838eac66287
[INFO] running `Command { std: "docker" "start" "-a" "2c5c33c9c9ff2ddd255bb3a9d4738b76632fffbfe09a589a247a0838eac66287", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c5c33c9c9ff2ddd255bb3a9d4738b76632fffbfe09a589a247a0838eac66287", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c5c33c9c9ff2ddd255bb3a9d4738b76632fffbfe09a589a247a0838eac66287", kill_on_drop: false }`
[INFO] [stdout] 2c5c33c9c9ff2ddd255bb3a9d4738b76632fffbfe09a589a247a0838eac66287
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 232a6410b11b5ac3208c945102fe1ef162b672b050f5fcea481e6a702f9cf84f
[INFO] running `Command { std: "docker" "start" "-a" "232a6410b11b5ac3208c945102fe1ef162b672b050f5fcea481e6a702f9cf84f", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking linear-algebra v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]  --> src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let x = cmp(1, 2);
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Complex32` is never used
[INFO] [stdout]   --> src/complex.rs:23:10
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub type Complex32 = Complex<f32>;
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Complex64` is never used
[INFO] [stdout]   --> src/complex.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub type Complex64 = Complex<f64>;
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `i` is never used
[INFO] [stdout]   --> src/complex.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl<T: Clone + Num> Complex<T>{
[INFO] [stdout]    | ------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn i() -> Self {
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]  --> src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let x = cmp(1, 2);
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Complex32` is never used
[INFO] [stdout]   --> src/complex.rs:23:10
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub type Complex32 = Complex<f32>;
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Complex64` is never used
[INFO] [stdout]   --> src/complex.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub type Complex64 = Complex<f64>;
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `i` is never used
[INFO] [stdout]   --> src/complex.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl<T: Clone + Num> Complex<T>{
[INFO] [stdout]    | ------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn i() -> Self {
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "232a6410b11b5ac3208c945102fe1ef162b672b050f5fcea481e6a702f9cf84f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "232a6410b11b5ac3208c945102fe1ef162b672b050f5fcea481e6a702f9cf84f", kill_on_drop: false }`
[INFO] [stdout] 232a6410b11b5ac3208c945102fe1ef162b672b050f5fcea481e6a702f9cf84f