[INFO] cloning repository https://github.com/DaltonCompSci/cs320_vssh_upgraded
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DaltonCompSci/cs320_vssh_upgraded" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaltonCompSci%2Fcs320_vssh_upgraded", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaltonCompSci%2Fcs320_vssh_upgraded'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a4b2ac0102018a889a58fa1d3e7a02fc6645cb8f
[INFO] testing DaltonCompSci/cs320_vssh_upgraded against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaltonCompSci%2Fcs320_vssh_upgraded" "/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/DaltonCompSci/cs320_vssh_upgraded 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/DaltonCompSci/cs320_vssh_upgraded
[INFO] finished tweaking git repo https://github.com/DaltonCompSci/cs320_vssh_upgraded
[INFO] tweaked toml for git repo https://github.com/DaltonCompSci/cs320_vssh_upgraded written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/DaltonCompSci/cs320_vssh_upgraded 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] 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] 105d086062422e4197434fce2e777753e0918758232e9cfe2993ebb2951cba23
[INFO] running `Command { std: "docker" "start" "-a" "105d086062422e4197434fce2e777753e0918758232e9cfe2993ebb2951cba23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "105d086062422e4197434fce2e777753e0918758232e9cfe2993ebb2951cba23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "105d086062422e4197434fce2e777753e0918758232e9cfe2993ebb2951cba23", kill_on_drop: false }`
[INFO] [stdout] 105d086062422e4197434fce2e777753e0918758232e9cfe2993ebb2951cba23
[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] 4923da4492d02829251e71e62d7ed44b65b8e0dde2fcd164250d815934530911
[INFO] running `Command { std: "docker" "start" "-a" "4923da4492d02829251e71e62d7ed44b65b8e0dde2fcd164250d815934530911", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling nix v0.19.1
[INFO] [stderr]    Compiling cs320_vssh v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `changed_dir`
[INFO] [stdout]   --> src/main.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |              let changed_dir = env::set_current_dir(&path).is_ok();
[INFO] [stdout]    |                  ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_changed_dir`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 9.57s
[INFO] running `Command { std: "docker" "inspect" "4923da4492d02829251e71e62d7ed44b65b8e0dde2fcd164250d815934530911", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4923da4492d02829251e71e62d7ed44b65b8e0dde2fcd164250d815934530911", kill_on_drop: false }`
[INFO] [stdout] 4923da4492d02829251e71e62d7ed44b65b8e0dde2fcd164250d815934530911
[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] 5228de6bfbd7dea7e2b68030934dba691d385050f7989a8504a99c1f0fabe482
[INFO] running `Command { std: "docker" "start" "-a" "5228de6bfbd7dea7e2b68030934dba691d385050f7989a8504a99c1f0fabe482", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cs320_vssh v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `changed_dir`
[INFO] [stdout]   --> src/main.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |              let changed_dir = env::set_current_dir(&path).is_ok();
[INFO] [stdout]    |                  ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_changed_dir`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "5228de6bfbd7dea7e2b68030934dba691d385050f7989a8504a99c1f0fabe482", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5228de6bfbd7dea7e2b68030934dba691d385050f7989a8504a99c1f0fabe482", kill_on_drop: false }`
[INFO] [stdout] 5228de6bfbd7dea7e2b68030934dba691d385050f7989a8504a99c1f0fabe482
[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] 10c9fd82670a62a0600967357a3c48b08824f1e35812189ddfc282cbe292dd43
[INFO] running `Command { std: "docker" "start" "-a" "10c9fd82670a62a0600967357a3c48b08824f1e35812189ddfc282cbe292dd43", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `changed_dir`
[INFO] [stdout] 
[INFO] [stderr]   --> src/main.rs:23:18
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 23 |              let changed_dir = env::set_current_dir(&path).is_ok();
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |                  ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_changed_dir`
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `cs320_vssh` (bin "cs320_vssh" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cs320_vssh-ff6b34c592d870b4)
[INFO] running `Command { std: "docker" "inspect" "10c9fd82670a62a0600967357a3c48b08824f1e35812189ddfc282cbe292dd43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10c9fd82670a62a0600967357a3c48b08824f1e35812189ddfc282cbe292dd43", kill_on_drop: false }`
[INFO] [stdout] 10c9fd82670a62a0600967357a3c48b08824f1e35812189ddfc282cbe292dd43