[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 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdobrakmato%2Flinear-algebra-rust" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dobrakmato/linear-algebra-rust on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "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-0/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" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stdout] 01eea8c2405ee21ce7eb2c550f2aac51840369e04ae841d4ed690244170f422e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "01eea8c2405ee21ce7eb2c550f2aac51840369e04ae841d4ed690244170f422e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[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 0.86s
[INFO] running `"docker" "inspect" "01eea8c2405ee21ce7eb2c550f2aac51840369e04ae841d4ed690244170f422e"`
[INFO] running `"docker" "rm" "-f" "01eea8c2405ee21ce7eb2c550f2aac51840369e04ae841d4ed690244170f422e"`
[INFO] [stdout] 01eea8c2405ee21ce7eb2c550f2aac51840369e04ae841d4ed690244170f422e
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "+1.44.0" "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] 2f0c7aa48abbd4db79d38fcbb3b48eda5f06ce2071cba55e9564251f6810f991
[INFO] running `"docker" "start" "-a" "2f0c7aa48abbd4db79d38fcbb3b48eda5f06ce2071cba55e9564251f6810f991"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[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 0.77s
[INFO] running `"docker" "inspect" "2f0c7aa48abbd4db79d38fcbb3b48eda5f06ce2071cba55e9564251f6810f991"`
[INFO] running `"docker" "rm" "-f" "2f0c7aa48abbd4db79d38fcbb3b48eda5f06ce2071cba55e9564251f6810f991"`
[INFO] [stdout] 2f0c7aa48abbd4db79d38fcbb3b48eda5f06ce2071cba55e9564251f6810f991
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "+1.44.0" "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] 4123edf5bf199a1d6eb100d87eee3e183bb552420b1bdb0fb8eea504748fdfea
[INFO] running `"docker" "start" "-a" "4123edf5bf199a1d6eb100d87eee3e183bb552420b1bdb0fb8eea504748fdfea"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[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 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/eaz-a7ea85cdc9c85d57
[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" "4123edf5bf199a1d6eb100d87eee3e183bb552420b1bdb0fb8eea504748fdfea"`
[INFO] running `"docker" "rm" "-f" "4123edf5bf199a1d6eb100d87eee3e183bb552420b1bdb0fb8eea504748fdfea"`
[INFO] [stdout] 4123edf5bf199a1d6eb100d87eee3e183bb552420b1bdb0fb8eea504748fdfea