[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 beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdobrakmato%2Flinear-algebra-rust" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dobrakmato/linear-algebra-rust on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-1/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" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 467772d16bdb487cdb8ffc6225643fbf4c58aa2514e7eff19303c7d24fdf9ead
[INFO] running `Command { std: "docker" "start" "-a" "467772d16bdb487cdb8ffc6225643fbf4c58aa2514e7eff19303c7d24fdf9ead", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "467772d16bdb487cdb8ffc6225643fbf4c58aa2514e7eff19303c7d24fdf9ead", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "467772d16bdb487cdb8ffc6225643fbf4c58aa2514e7eff19303c7d24fdf9ead", kill_on_drop: false }`
[INFO] [stdout] 467772d16bdb487cdb8ffc6225643fbf4c58aa2514e7eff19303c7d24fdf9ead
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 706b423d5e21473e3a15f543c759f2a54d1a1629a6e87dc28f807acb4dd7948f
[INFO] running `Command { std: "docker" "start" "-a" "706b423d5e21473e3a15f543c759f2a54d1a1629a6e87dc28f807acb4dd7948f", 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 0.52s
[INFO] running `Command { std: "docker" "inspect" "706b423d5e21473e3a15f543c759f2a54d1a1629a6e87dc28f807acb4dd7948f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "706b423d5e21473e3a15f543c759f2a54d1a1629a6e87dc28f807acb4dd7948f", kill_on_drop: false }`
[INFO] [stdout] 706b423d5e21473e3a15f543c759f2a54d1a1629a6e87dc28f807acb4dd7948f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ec308c4d853ee791b3367d44b3e1b76bcf33fe63f7565b7d69bbf42d6eecb21
[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" "2ec308c4d853ee791b3367d44b3e1b76bcf33fe63f7565b7d69bbf42d6eecb21", 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 0.63s
[INFO] running `Command { std: "docker" "inspect" "2ec308c4d853ee791b3367d44b3e1b76bcf33fe63f7565b7d69bbf42d6eecb21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ec308c4d853ee791b3367d44b3e1b76bcf33fe63f7565b7d69bbf42d6eecb21", kill_on_drop: false }`
[INFO] [stdout] 2ec308c4d853ee791b3367d44b3e1b76bcf33fe63f7565b7d69bbf42d6eecb21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b69c09147901f99f76e2efaff5c29a38e167722ea1f006f3c717f014276c9e0a
[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" "b69c09147901f99f76e2efaff5c29a38e167722ea1f006f3c717f014276c9e0a", kill_on_drop: false }`
[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; finished in 0.00s
[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: `eaz` (bin "eaz" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/eaz-746274f283d9b424)
[INFO] running `Command { std: "docker" "inspect" "b69c09147901f99f76e2efaff5c29a38e167722ea1f006f3c717f014276c9e0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b69c09147901f99f76e2efaff5c29a38e167722ea1f006f3c717f014276c9e0a", kill_on_drop: false }`
[INFO] [stdout] b69c09147901f99f76e2efaff5c29a38e167722ea1f006f3c717f014276c9e0a