[INFO] cloning repository https://github.com/aleozlx/la-tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aleozlx/la-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faleozlx%2Fla-tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faleozlx%2Fla-tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 24e0dd0f732059a65725fd85e9d5522291750bd8
[INFO] testing aleozlx/la-tutorial against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faleozlx%2Fla-tutorial" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aleozlx/la-tutorial on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aleozlx/la-tutorial
[INFO] finished tweaking git repo https://github.com/aleozlx/la-tutorial
[INFO] tweaked toml for git repo https://github.com/aleozlx/la-tutorial written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/aleozlx/la-tutorial already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fe693df08f86fece517d64a51185c0bf559d2f5e3170f84db1913d293eb5cf68
[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" "fe693df08f86fece517d64a51185c0bf559d2f5e3170f84db1913d293eb5cf68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe693df08f86fece517d64a51185c0bf559d2f5e3170f84db1913d293eb5cf68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe693df08f86fece517d64a51185c0bf559d2f5e3170f84db1913d293eb5cf68", kill_on_drop: false }`
[INFO] [stdout] fe693df08f86fece517d64a51185c0bf559d2f5e3170f84db1913d293eb5cf68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ef3f23d30dd330e1f7c81b8ba842cbc748f3d4e86ab8763f16de3b21bf52dec
[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" "3ef3f23d30dd330e1f7c81b8ba842cbc748f3d4e86ab8763f16de3b21bf52dec", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling la-tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:54:39
[INFO] [stdout]    |
[INFO] [stdout] 54 |     unsafe fn s_product_sum(out: &mut IColumnVector, a: &Matrix, b: &IColumnVector, j: usize) {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn IColumnVector`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:54:70
[INFO] [stdout]    |
[INFO] [stdout] 54 |     unsafe fn s_product_sum(out: &mut IColumnVector, a: &Matrix, b: &IColumnVector, j: usize) {
[INFO] [stdout]    |                                                                      ^^^^^^^^^^^^^ help: use `dyn`: `dyn IColumnVector`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `transpose`
[INFO] [stdout]    --> src/main.rs:130:8
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn transpose(&self) -> Matrix {
[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: `linear_regression`
[INFO] [stdout]    --> src/main.rs:142:8
[INFO] [stdout]     |
[INFO] [stdout] 142 |     fn linear_regression(&self, y: &Vec<f32>, theta: &mut Vec<f32>){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `Command { std: "docker" "inspect" "3ef3f23d30dd330e1f7c81b8ba842cbc748f3d4e86ab8763f16de3b21bf52dec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ef3f23d30dd330e1f7c81b8ba842cbc748f3d4e86ab8763f16de3b21bf52dec", kill_on_drop: false }`
[INFO] [stdout] 3ef3f23d30dd330e1f7c81b8ba842cbc748f3d4e86ab8763f16de3b21bf52dec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--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] 44c80b9e3160f8f062d9db4401319b14470af73e33c2646b00a1e6727a954aad
[INFO] running `Command { std: "docker" "start" "-a" "44c80b9e3160f8f062d9db4401319b14470af73e33c2646b00a1e6727a954aad", kill_on_drop: false }`
[INFO] [stderr]    Compiling la-tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:54:39
[INFO] [stdout]    |
[INFO] [stdout] 54 |     unsafe fn s_product_sum(out: &mut IColumnVector, a: &Matrix, b: &IColumnVector, j: usize) {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn IColumnVector`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:54:70
[INFO] [stdout]    |
[INFO] [stdout] 54 |     unsafe fn s_product_sum(out: &mut IColumnVector, a: &Matrix, b: &IColumnVector, j: usize) {
[INFO] [stdout]    |                                                                      ^^^^^^^^^^^^^ help: use `dyn`: `dyn IColumnVector`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `transpose`
[INFO] [stdout]    --> src/main.rs:130:8
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn transpose(&self) -> Matrix {
[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: `linear_regression`
[INFO] [stdout]    --> src/main.rs:142:8
[INFO] [stdout]     |
[INFO] [stdout] 142 |     fn linear_regression(&self, y: &Vec<f32>, theta: &mut Vec<f32>){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "44c80b9e3160f8f062d9db4401319b14470af73e33c2646b00a1e6727a954aad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44c80b9e3160f8f062d9db4401319b14470af73e33c2646b00a1e6727a954aad", kill_on_drop: false }`
[INFO] [stdout] 44c80b9e3160f8f062d9db4401319b14470af73e33c2646b00a1e6727a954aad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3ef45d0670e896a9def675bb7cbdb82dce852d22c47f2f977a7e0d14236cdb10
[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" "3ef45d0670e896a9def675bb7cbdb82dce852d22c47f2f977a7e0d14236cdb10", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:54:39
[INFO] [stderr]    |
[INFO] [stderr] 54 |     unsafe fn s_product_sum(out: &mut IColumnVector, a: &Matrix, b: &IColumnVector, j: usize) {
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn IColumnVector`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:54:70
[INFO] [stderr]    |
[INFO] [stderr] 54 |     unsafe fn s_product_sum(out: &mut IColumnVector, a: &Matrix, b: &IColumnVector, j: usize) {
[INFO] [stderr]    |                                                                      ^^^^^^^^^^^^^ help: use `dyn`: `dyn IColumnVector`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `transpose`
[INFO] [stderr]    --> src/main.rs:130:8
[INFO] [stderr]     |
[INFO] [stderr] 130 |     fn transpose(&self) -> Matrix {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `linear_regression`
[INFO] [stderr]    --> src/main.rs:142:8
[INFO] [stderr]     |
[INFO] [stderr] 142 |     fn linear_regression(&self, y: &Vec<f32>, theta: &mut Vec<f32>){
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/la_tutorial-420a3396837d94f5
[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 `Command { std: "docker" "inspect" "3ef45d0670e896a9def675bb7cbdb82dce852d22c47f2f977a7e0d14236cdb10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ef45d0670e896a9def675bb7cbdb82dce852d22c47f2f977a7e0d14236cdb10", kill_on_drop: false }`
[INFO] [stdout] 3ef45d0670e896a9def675bb7cbdb82dce852d22c47f2f977a7e0d14236cdb10