[INFO] cloning repository https://github.com/jit-y/introduction-to-algorithms-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jit-y/introduction-to-algorithms-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjit-y%2Fintroduction-to-algorithms-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjit-y%2Fintroduction-to-algorithms-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 647f9fbee9ca3cca93a95e98c375c6ea7bc2992e
[INFO] testing jit-y/introduction-to-algorithms-rs against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjit-y%2Fintroduction-to-algorithms-rs" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jit-y/introduction-to-algorithms-rs on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jit-y/introduction-to-algorithms-rs
[INFO] finished tweaking git repo https://github.com/jit-y/introduction-to-algorithms-rs
[INFO] tweaked toml for git repo https://github.com/jit-y/introduction-to-algorithms-rs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/jit-y/introduction-to-algorithms-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b269d9fe04335b146f4b758c97e7e77215bb800ea67e53e6af2819b59f5227c5
[INFO] running `Command { std: "docker" "start" "-a" "b269d9fe04335b146f4b758c97e7e77215bb800ea67e53e6af2819b59f5227c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b269d9fe04335b146f4b758c97e7e77215bb800ea67e53e6af2819b59f5227c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b269d9fe04335b146f4b758c97e7e77215bb800ea67e53e6af2819b59f5227c5", kill_on_drop: false }`
[INFO] [stdout] b269d9fe04335b146f4b758c97e7e77215bb800ea67e53e6af2819b59f5227c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b617bbf00a614abd28af7d4310236093524312651ac0f3fbb9e8d122aae24e04
[INFO] running `Command { std: "docker" "start" "-a" "b617bbf00a614abd28af7d4310236093524312651ac0f3fbb9e8d122aae24e04", kill_on_drop: false }`
[INFO] [stderr]    Compiling introduction-to-algorithms-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `insertion`
[INFO] [stdout]  --> src/sorts.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn insertion(a: &mut Vec<i32>) {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "b617bbf00a614abd28af7d4310236093524312651ac0f3fbb9e8d122aae24e04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b617bbf00a614abd28af7d4310236093524312651ac0f3fbb9e8d122aae24e04", kill_on_drop: false }`
[INFO] [stdout] b617bbf00a614abd28af7d4310236093524312651ac0f3fbb9e8d122aae24e04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c9e3f5eef5bda77eb538b0a56d1f0cca3d4856ad6defb6bb37717d418bebf6cc
[INFO] running `Command { std: "docker" "start" "-a" "c9e3f5eef5bda77eb538b0a56d1f0cca3d4856ad6defb6bb37717d418bebf6cc", kill_on_drop: false }`
[INFO] [stdout] warning: function is never used: `insertion`
[INFO] [stdout]  --> src/sorts.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn insertion(a: &mut Vec<i32>) {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling introduction-to-algorithms-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "c9e3f5eef5bda77eb538b0a56d1f0cca3d4856ad6defb6bb37717d418bebf6cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9e3f5eef5bda77eb538b0a56d1f0cca3d4856ad6defb6bb37717d418bebf6cc", kill_on_drop: false }`
[INFO] [stdout] c9e3f5eef5bda77eb538b0a56d1f0cca3d4856ad6defb6bb37717d418bebf6cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d81dfc74173cf02a92c737a323d5898c6251d33b2f1d501722da894cc91e6b4f
[INFO] running `Command { std: "docker" "start" "-a" "d81dfc74173cf02a92c737a323d5898c6251d33b2f1d501722da894cc91e6b4f", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: function is never used: `insertion`
[INFO] [stdout] running 1 test
[INFO] [stderr]  --> src/sorts.rs:1:8
[INFO] [stdout] test sorts::test::test_sort ... ok
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 1 | pub fn insertion(a: &mut Vec<i32>) {
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] running 0 tests
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: `introduction-to-algorithms-rs` (lib) generated 1 warning
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/introduction_to_algorithms_rs-92c1b5a04c897412)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/introduction_to_algorithms_rs-050789eb5087b140)
[INFO] [stderr]    Doc-tests introduction-to-algorithms-rs
[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" "d81dfc74173cf02a92c737a323d5898c6251d33b2f1d501722da894cc91e6b4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d81dfc74173cf02a92c737a323d5898c6251d33b2f1d501722da894cc91e6b4f", kill_on_drop: false }`
[INFO] [stdout] d81dfc74173cf02a92c737a323d5898c6251d33b2f1d501722da894cc91e6b4f