[INFO] cloning repository https://github.com/BrandonXZ/Rust_Crash_Course
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BrandonXZ/Rust_Crash_Course" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrandonXZ%2FRust_Crash_Course", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrandonXZ%2FRust_Crash_Course'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f69def44f8792b1458deb61915f474d8060017f4
[INFO] testing BrandonXZ/Rust_Crash_Course against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrandonXZ%2FRust_Crash_Course" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BrandonXZ/Rust_Crash_Course on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BrandonXZ/Rust_Crash_Course
[INFO] finished tweaking git repo https://github.com/BrandonXZ/Rust_Crash_Course
[INFO] tweaked toml for git repo https://github.com/BrandonXZ/Rust_Crash_Course written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/BrandonXZ/Rust_Crash_Course already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0445f3dd63b3bf50ad8013b3e272a814869f95e24f8e1f13d00f69f4dca73694
[INFO] running `Command { std: "docker" "start" "-a" "0445f3dd63b3bf50ad8013b3e272a814869f95e24f8e1f13d00f69f4dca73694", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0445f3dd63b3bf50ad8013b3e272a814869f95e24f8e1f13d00f69f4dca73694", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0445f3dd63b3bf50ad8013b3e272a814869f95e24f8e1f13d00f69f4dca73694", kill_on_drop: false }`
[INFO] [stdout] 0445f3dd63b3bf50ad8013b3e272a814869f95e24f8e1f13d00f69f4dca73694
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c98a09a9bc4d55cdf7446ca6954c6c7fc35df65235e463761e3d7b79f9458f5
[INFO] running `Command { std: "docker" "start" "-a" "8c98a09a9bc4d55cdf7446ca6954c6c7fc35df65235e463761e3d7b79f9458f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusty v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum is never used: `Result`
[INFO] [stdout]   --> src/error_handling.rs:28:6
[INFO] [stdout]    |
[INFO] [stdout] 28 | enum Result<T,E>{
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Options`
[INFO] [stdout]   --> src/error_handling.rs:33:6
[INFO] [stdout]    |
[INFO] [stdout] 33 | enum Options<T>{
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "8c98a09a9bc4d55cdf7446ca6954c6c7fc35df65235e463761e3d7b79f9458f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c98a09a9bc4d55cdf7446ca6954c6c7fc35df65235e463761e3d7b79f9458f5", kill_on_drop: false }`
[INFO] [stdout] 8c98a09a9bc4d55cdf7446ca6954c6c7fc35df65235e463761e3d7b79f9458f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b9d17ccdbf3735a9d41fc5759e09905b10a8dc26d51a5406e7418dc2339c6bd
[INFO] running `Command { std: "docker" "start" "-a" "6b9d17ccdbf3735a9d41fc5759e09905b10a8dc26d51a5406e7418dc2339c6bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusty v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum is never used: `Result`
[INFO] [stdout]   --> src/error_handling.rs:28:6
[INFO] [stdout]    |
[INFO] [stdout] 28 | enum Result<T,E>{
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Options`
[INFO] [stdout]   --> src/error_handling.rs:33:6
[INFO] [stdout]    |
[INFO] [stdout] 33 | enum Options<T>{
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "6b9d17ccdbf3735a9d41fc5759e09905b10a8dc26d51a5406e7418dc2339c6bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b9d17ccdbf3735a9d41fc5759e09905b10a8dc26d51a5406e7418dc2339c6bd", kill_on_drop: false }`
[INFO] [stdout] 6b9d17ccdbf3735a9d41fc5759e09905b10a8dc26d51a5406e7418dc2339c6bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4cb4b2f5d27ba455bdf142e593b505b38dc23d5d5ce8a08f3b425c3356ef8654
[INFO] running `Command { std: "docker" "start" "-a" "4cb4b2f5d27ba455bdf142e593b505b38dc23d5d5ce8a08f3b425c3356ef8654", kill_on_drop: false }`
[INFO] [stderr] warning: enum is never used: `Result`
[INFO] [stderr]   --> src/error_handling.rs:28:6
[INFO] [stderr]    |
[INFO] [stderr] 28 | enum Result<T,E>{
[INFO] [stderr]    |      ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Options`
[INFO] [stderr]   --> src/error_handling.rs:33:6
[INFO] [stderr]    |
[INFO] [stderr] 33 | enum Options<T>{
[INFO] [stderr]    |      ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rusty` (bin "rusty" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rusty-65726b144c1ffa66)
[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" "4cb4b2f5d27ba455bdf142e593b505b38dc23d5d5ce8a08f3b425c3356ef8654", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cb4b2f5d27ba455bdf142e593b505b38dc23d5d5ce8a08f3b425c3356ef8654", kill_on_drop: false }`
[INFO] [stdout] 4cb4b2f5d27ba455bdf142e593b505b38dc23d5d5ce8a08f3b425c3356ef8654