[INFO] updating cached repository https://github.com/dobrakmato/linear-algebra-rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1c681f0f23d03f01b686ed74b34352a2cfe87656
[INFO] testing dobrakmato/linear-algebra-rust against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdobrakmato%2Flinear-algebra-rust" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dobrakmato/linear-algebra-rust on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-9/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 `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3a044766e122f3a1740c9dcd3ec93ef8abe2bc5370d600a7ab571430322d63c3
[INFO] running `"docker" "start" "-a" "3a044766e122f3a1740c9dcd3ec93ef8abe2bc5370d600a7ab571430322d63c3"`
[INFO] [stderr]    Compiling eaz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `pivot`
[INFO] [stderr]   --> src/gauss.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |         let pivot = {
[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: method is never used: `mul_row`
[INFO] [stderr]   --> src/gauss.rs:35:5
[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: method is never used: `swap_rows`
[INFO] [stderr]   --> src/gauss.rs:41:5
[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 dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `"docker" "inspect" "3a044766e122f3a1740c9dcd3ec93ef8abe2bc5370d600a7ab571430322d63c3"`
[INFO] running `"docker" "rm" "-f" "3a044766e122f3a1740c9dcd3ec93ef8abe2bc5370d600a7ab571430322d63c3"`
[INFO] [stdout] 3a044766e122f3a1740c9dcd3ec93ef8abe2bc5370d600a7ab571430322d63c3
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 677d1123de21ab36d17db5ec16e5da21b99c31601233af1f5ceecf48e84c67a7
[INFO] running `"docker" "start" "-a" "677d1123de21ab36d17db5ec16e5da21b99c31601233af1f5ceecf48e84c67a7"`
[INFO] [stderr]    Compiling eaz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `pivot`
[INFO] [stderr]   --> src/gauss.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |         let pivot = {
[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: method is never used: `mul_row`
[INFO] [stderr]   --> src/gauss.rs:35:5
[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: method is never used: `swap_rows`
[INFO] [stderr]   --> src/gauss.rs:41:5
[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 0.87s
[INFO] running `"docker" "inspect" "677d1123de21ab36d17db5ec16e5da21b99c31601233af1f5ceecf48e84c67a7"`
[INFO] running `"docker" "rm" "-f" "677d1123de21ab36d17db5ec16e5da21b99c31601233af1f5ceecf48e84c67a7"`
[INFO] [stdout] 677d1123de21ab36d17db5ec16e5da21b99c31601233af1f5ceecf48e84c67a7
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2b1459eb14a2e603f8528be7cd77f13167feed0717b9e55607cff9b8df92fe50
[INFO] running `"docker" "start" "-a" "2b1459eb14a2e603f8528be7cd77f13167feed0717b9e55607cff9b8df92fe50"`
[INFO] [stderr] warning: unused variable: `pivot`
[INFO] [stderr]   --> src/gauss.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |         let pivot = {
[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: method is never used: `mul_row`
[INFO] [stderr]   --> src/gauss.rs:35:5
[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: method is never used: `swap_rows`
[INFO] [stderr]   --> src/gauss.rs:41:5
[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 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/eaz-9cb72341e9c3070e
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "2b1459eb14a2e603f8528be7cd77f13167feed0717b9e55607cff9b8df92fe50"`
[INFO] running `"docker" "rm" "-f" "2b1459eb14a2e603f8528be7cd77f13167feed0717b9e55607cff9b8df92fe50"`
[INFO] [stdout] 2b1459eb14a2e603f8528be7cd77f13167feed0717b9e55607cff9b8df92fe50