[INFO] cloning repository https://github.com/dobrakmato/linear-algebra-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dobrakmato/linear-algebra-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdobrakmato%2Flinear-algebra-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdobrakmato%2Flinear-algebra-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1c681f0f23d03f01b686ed74b34352a2cfe87656
[INFO] testing dobrakmato/linear-algebra-rust against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdobrakmato%2Flinear-algebra-rust" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dobrakmato/linear-algebra-rust on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dobrakmato/linear-algebra-rust
[INFO] finished tweaking git repo https://github.com/dobrakmato/linear-algebra-rust
[INFO] tweaked toml for git repo https://github.com/dobrakmato/linear-algebra-rust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/dobrakmato/linear-algebra-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c00f3dc3212b43a272179068046c42dc03e665a10772cda781c68019fb769640
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c00f3dc3212b43a272179068046c42dc03e665a10772cda781c68019fb769640", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c00f3dc3212b43a272179068046c42dc03e665a10772cda781c68019fb769640", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c00f3dc3212b43a272179068046c42dc03e665a10772cda781c68019fb769640", kill_on_drop: false }`
[INFO] [stdout] c00f3dc3212b43a272179068046c42dc03e665a10772cda781c68019fb769640
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7bab3d8f4a58df4b2714862fffadc7feed469120a3db16bbd37efbf263aa8dee
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7bab3d8f4a58df4b2714862fffadc7feed469120a3db16bbd37efbf263aa8dee", kill_on_drop: false }`
[INFO] [stderr]    Compiling eaz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `pivot`
[INFO] [stdout]   --> src/gauss.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let pivot = {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_pivot`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mul_row`
[INFO] [stdout]   --> src/gauss.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn mul_row(&mut self, row: usize, f: T) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `swap_rows`
[INFO] [stdout]   --> src/gauss.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn swap_rows(&mut self, row1: usize, row2: usize) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "7bab3d8f4a58df4b2714862fffadc7feed469120a3db16bbd37efbf263aa8dee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bab3d8f4a58df4b2714862fffadc7feed469120a3db16bbd37efbf263aa8dee", kill_on_drop: false }`
[INFO] [stdout] 7bab3d8f4a58df4b2714862fffadc7feed469120a3db16bbd37efbf263aa8dee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fca41b5e08782206184e964366f216bf403ed77a094c6472f852919b3ca48fb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2fca41b5e08782206184e964366f216bf403ed77a094c6472f852919b3ca48fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling eaz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `pivot`
[INFO] [stdout]   --> src/gauss.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let pivot = {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_pivot`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mul_row`
[INFO] [stdout]   --> src/gauss.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn mul_row(&mut self, row: usize, f: T) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `swap_rows`
[INFO] [stdout]   --> src/gauss.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn swap_rows(&mut self, row1: usize, row2: usize) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "2fca41b5e08782206184e964366f216bf403ed77a094c6472f852919b3ca48fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fca41b5e08782206184e964366f216bf403ed77a094c6472f852919b3ca48fb", kill_on_drop: false }`
[INFO] [stdout] 2fca41b5e08782206184e964366f216bf403ed77a094c6472f852919b3ca48fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a5e2a8551a5b9f57530d87f7644216cc967d135b02ae6ec1b7596b043d7d8898
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a5e2a8551a5b9f57530d87f7644216cc967d135b02ae6ec1b7596b043d7d8898", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `pivot`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/gauss.rs:58:13
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 58 |         let pivot = {
[INFO] [stdout] 
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_pivot`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `mul_row`
[INFO] [stderr]   --> src/gauss.rs:35:12
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn mul_row(&mut self, row: usize, f: T) {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `swap_rows`
[INFO] [stderr]   --> src/gauss.rs:41:12
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn swap_rows(&mut self, row1: usize, row2: usize) {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/eaz-e55f4a817c31fafa
[INFO] running `Command { std: "docker" "inspect" "a5e2a8551a5b9f57530d87f7644216cc967d135b02ae6ec1b7596b043d7d8898", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5e2a8551a5b9f57530d87f7644216cc967d135b02ae6ec1b7596b043d7d8898", kill_on_drop: false }`
[INFO] [stdout] a5e2a8551a5b9f57530d87f7644216cc967d135b02ae6ec1b7596b043d7d8898