[INFO] cloning repository https://github.com/sstadick/programming_parallel_computers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sstadick/programming_parallel_computers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsstadick%2Fprogramming_parallel_computers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsstadick%2Fprogramming_parallel_computers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 54be2615fc046e8a1985bf132c2af5f1d39a6351
[INFO] testing sstadick/programming_parallel_computers against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsstadick%2Fprogramming_parallel_computers" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sstadick/programming_parallel_computers on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sstadick/programming_parallel_computers
[INFO] finished tweaking git repo https://github.com/sstadick/programming_parallel_computers
[INFO] tweaked toml for git repo https://github.com/sstadick/programming_parallel_computers written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/sstadick/programming_parallel_computers already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 148d8637fc8f60edde0fafa46e44f171f90a5d297ee784ab23130d0b8f92e966
[INFO] running `Command { std: "docker" "start" "-a" "148d8637fc8f60edde0fafa46e44f171f90a5d297ee784ab23130d0b8f92e966", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "148d8637fc8f60edde0fafa46e44f171f90a5d297ee784ab23130d0b8f92e966", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "148d8637fc8f60edde0fafa46e44f171f90a5d297ee784ab23130d0b8f92e966", kill_on_drop: false }`
[INFO] [stdout] 148d8637fc8f60edde0fafa46e44f171f90a5d297ee784ab23130d0b8f92e966
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cec33160351adf5fe4a718be78e887cbab5a00b101c0cec1fe3b9f8b7f96a195
[INFO] running `Command { std: "docker" "start" "-a" "cec33160351adf5fe4a718be78e887cbab5a00b101c0cec1fe3b9f8b7f96a195", kill_on_drop: false }`
[INFO] [stderr]    Compiling ppc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]  --> src/main.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn step(r: &mut Vec<f64>, d: &Vec<f64>, n: usize) {}
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]  --> src/main.rs:5:27
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn step(r: &mut Vec<f64>, d: &Vec<f64>, n: usize) {}
[INFO] [stdout]   |                           ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]  --> src/main.rs:5:41
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn step(r: &mut Vec<f64>, d: &Vec<f64>, n: usize) {}
[INFO] [stdout]   |                                         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "cec33160351adf5fe4a718be78e887cbab5a00b101c0cec1fe3b9f8b7f96a195", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cec33160351adf5fe4a718be78e887cbab5a00b101c0cec1fe3b9f8b7f96a195", kill_on_drop: false }`
[INFO] [stdout] cec33160351adf5fe4a718be78e887cbab5a00b101c0cec1fe3b9f8b7f96a195
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92343784c51844d897b5344674a7b7007f87274340f78f449c0f200d0fbe5660
[INFO] running `Command { std: "docker" "start" "-a" "92343784c51844d897b5344674a7b7007f87274340f78f449c0f200d0fbe5660", kill_on_drop: false }`
[INFO] [stderr]    Compiling ppc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]  --> src/main.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn step(r: &mut Vec<f64>, d: &Vec<f64>, n: usize) {}
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]  --> src/main.rs:5:27
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn step(r: &mut Vec<f64>, d: &Vec<f64>, n: usize) {}
[INFO] [stdout]   |                           ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]  --> src/main.rs:5:41
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn step(r: &mut Vec<f64>, d: &Vec<f64>, n: usize) {}
[INFO] [stdout]   |                                         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "92343784c51844d897b5344674a7b7007f87274340f78f449c0f200d0fbe5660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92343784c51844d897b5344674a7b7007f87274340f78f449c0f200d0fbe5660", kill_on_drop: false }`
[INFO] [stdout] 92343784c51844d897b5344674a7b7007f87274340f78f449c0f200d0fbe5660
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 02ac78e10e865413dee7dcded00948aaa17969a61daee13f2a41bb0c79e332fb
[INFO] running `Command { std: "docker" "start" "-a" "02ac78e10e865413dee7dcded00948aaa17969a61daee13f2a41bb0c79e332fb", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/main.rs:5:9
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 5 | fn step(r: &mut Vec<f64>, d: &Vec<f64>, n: usize) {}
[INFO] [stdout] 
[INFO] [stderr]   |         ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `d`
[INFO] [stderr]  --> src/main.rs:5:27
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn step(r: &mut Vec<f64>, d: &Vec<f64>, n: usize) {}
[INFO] [stderr]   |                           ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]  --> src/main.rs:5:41
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn step(r: &mut Vec<f64>, d: &Vec<f64>, n: usize) {}
[INFO] [stderr]   |                                         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ppc-75b9599868a54b44)
[INFO] running `Command { std: "docker" "inspect" "02ac78e10e865413dee7dcded00948aaa17969a61daee13f2a41bb0c79e332fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02ac78e10e865413dee7dcded00948aaa17969a61daee13f2a41bb0c79e332fb", kill_on_drop: false }`
[INFO] [stdout] 02ac78e10e865413dee7dcded00948aaa17969a61daee13f2a41bb0c79e332fb