[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 beta-2021-09-08 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-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jit-y/introduction-to-algorithms-rs 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/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-0/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" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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] 790c34d1af49e8234034534bc1cb3e8b886922c31280656bcc117db7ef687541
[INFO] running `Command { std: "docker" "start" "-a" "790c34d1af49e8234034534bc1cb3e8b886922c31280656bcc117db7ef687541", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "790c34d1af49e8234034534bc1cb3e8b886922c31280656bcc117db7ef687541", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "790c34d1af49e8234034534bc1cb3e8b886922c31280656bcc117db7ef687541", kill_on_drop: false }`
[INFO] [stdout] 790c34d1af49e8234034534bc1cb3e8b886922c31280656bcc117db7ef687541
[INFO] running `Command { std: "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" "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] 3979fa60882e294524c1e2d62df4c8c44fcf7b5625244cb2d6c0587c06cf006f
[INFO] running `Command { std: "docker" "start" "-a" "3979fa60882e294524c1e2d62df4c8c44fcf7b5625244cb2d6c0587c06cf006f", 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 0.87s
[INFO] running `Command { std: "docker" "inspect" "3979fa60882e294524c1e2d62df4c8c44fcf7b5625244cb2d6c0587c06cf006f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3979fa60882e294524c1e2d62df4c8c44fcf7b5625244cb2d6c0587c06cf006f", kill_on_drop: false }`
[INFO] [stdout] 3979fa60882e294524c1e2d62df4c8c44fcf7b5625244cb2d6c0587c06cf006f
[INFO] running `Command { std: "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" "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] e9142a302016d413b4eac9ebc2347e7acf8ba1e8fba13e240a715a6c452b2b80
[INFO] running `Command { std: "docker" "start" "-a" "e9142a302016d413b4eac9ebc2347e7acf8ba1e8fba13e240a715a6c452b2b80", 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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling introduction-to-algorithms-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "e9142a302016d413b4eac9ebc2347e7acf8ba1e8fba13e240a715a6c452b2b80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9142a302016d413b4eac9ebc2347e7acf8ba1e8fba13e240a715a6c452b2b80", kill_on_drop: false }`
[INFO] [stdout] e9142a302016d413b4eac9ebc2347e7acf8ba1e8fba13e240a715a6c452b2b80
[INFO] running `Command { std: "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" "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] 70ad2e291329c21c6990005c9971138ffa122d1a97d96e1a6920cd9d25462f6f
[INFO] running `Command { std: "docker" "start" "-a" "70ad2e291329c21c6990005c9971138ffa122d1a97d96e1a6920cd9d25462f6f", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `insertion`
[INFO] [stderr]  --> src/sorts.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn insertion(a: &mut Vec<i32>) {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `introduction-to-algorithms-rs` (lib) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test sorts::test::test_sort ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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/introduction_to_algorithms_rs-148fadb3574f1fc9)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/introduction_to_algorithms_rs-f5b771e5de86dd7d)
[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] [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" "70ad2e291329c21c6990005c9971138ffa122d1a97d96e1a6920cd9d25462f6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70ad2e291329c21c6990005c9971138ffa122d1a97d96e1a6920cd9d25462f6f", kill_on_drop: false }`
[INFO] [stdout] 70ad2e291329c21c6990005c9971138ffa122d1a97d96e1a6920cd9d25462f6f