[INFO] cloning repository https://github.com/ArtifactCabinet/rust-workbench
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ArtifactCabinet/rust-workbench" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArtifactCabinet%2Frust-workbench", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArtifactCabinet%2Frust-workbench'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a9d63184a187f5d239f87830b146524b94fd0bf5
[INFO] testing ArtifactCabinet/rust-workbench 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%2FArtifactCabinet%2Frust-workbench" "/workspace/builds/worker-31/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-31/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ArtifactCabinet/rust-workbench 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/ArtifactCabinet/rust-workbench
[INFO] finished tweaking git repo https://github.com/ArtifactCabinet/rust-workbench
[INFO] tweaked toml for git repo https://github.com/ArtifactCabinet/rust-workbench written to /workspace/builds/worker-31/source/Cargo.toml
[INFO] crate git repo https://github.com/ArtifactCabinet/rust-workbench 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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] [stdout] 0bcebfa1c4818776046d1e446a1de0ec2f897469a7288fc73eda8e746a4b5667
[INFO] running `Command { std: "docker" "start" "-a" "0bcebfa1c4818776046d1e446a1de0ec2f897469a7288fc73eda8e746a4b5667", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bcebfa1c4818776046d1e446a1de0ec2f897469a7288fc73eda8e746a4b5667", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bcebfa1c4818776046d1e446a1de0ec2f897469a7288fc73eda8e746a4b5667", kill_on_drop: false }`
[INFO] [stdout] 0bcebfa1c4818776046d1e446a1de0ec2f897469a7288fc73eda8e746a4b5667
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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] [stdout] 97fa310b53850444186c365ff2722a3d2008a954f603b092309af49edc981512
[INFO] running `Command { std: "docker" "start" "-a" "97fa310b53850444186c365ff2722a3d2008a954f603b092309af49edc981512", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-workbench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `names`
[INFO] [stdout]   --> src/p02_practice.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let names = vec![1,2,3,4,5];
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_names`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add`
[INFO] [stdout]  --> src/p02_practice.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn add (a:i64,b:i64) -> i64 {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `filter`
[INFO] [stdout]   --> src/p02_practice.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn filter(){
[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 1.01s
[INFO] running `Command { std: "docker" "inspect" "97fa310b53850444186c365ff2722a3d2008a954f603b092309af49edc981512", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97fa310b53850444186c365ff2722a3d2008a954f603b092309af49edc981512", kill_on_drop: false }`
[INFO] [stdout] 97fa310b53850444186c365ff2722a3d2008a954f603b092309af49edc981512
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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] 43444f836ad6cecea4af52a0754730bb89f5e4f47921c387b979c44b98a4b108
[INFO] running `Command { std: "docker" "start" "-a" "43444f836ad6cecea4af52a0754730bb89f5e4f47921c387b979c44b98a4b108", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-workbench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `names`
[INFO] [stdout]   --> src/p02_practice.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let names = vec![1,2,3,4,5];
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_names`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `filter`
[INFO] [stdout]   --> src/p02_practice.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn filter(){
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "43444f836ad6cecea4af52a0754730bb89f5e4f47921c387b979c44b98a4b108", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43444f836ad6cecea4af52a0754730bb89f5e4f47921c387b979c44b98a4b108", kill_on_drop: false }`
[INFO] [stdout] 43444f836ad6cecea4af52a0754730bb89f5e4f47921c387b979c44b98a4b108
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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] fbb16067f665877c3e860dbfed11e530409a6dcb23afe29754320b4a35e47409
[INFO] running `Command { std: "docker" "start" "-a" "fbb16067f665877c3e860dbfed11e530409a6dcb23afe29754320b4a35e47409", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `names`
[INFO] [stderr]   --> src/p02_practice.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let names = vec![1,2,3,4,5];
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_names`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `filter`
[INFO] [stderr]   --> src/p02_practice.rs:17:4
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn filter(){
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-workbench` (bin "main" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/main-a7e8ce77ebc06f82)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test p02_practice::tests::test_add ... ok
[INFO] [stdout] test p02_practice::tests::test_odd ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/osrelease-efa250cd096e79d9)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fbb16067f665877c3e860dbfed11e530409a6dcb23afe29754320b4a35e47409", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbb16067f665877c3e860dbfed11e530409a6dcb23afe29754320b4a35e47409", kill_on_drop: false }`
[INFO] [stdout] fbb16067f665877c3e860dbfed11e530409a6dcb23afe29754320b4a35e47409