[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] checking DaltonCompSci/cs320_vssh_upgraded against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaltonCompSci%2Fcs320_vssh_upgraded" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DaltonCompSci/cs320_vssh_upgraded on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "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-11/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" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6cd7734c1b0328ae77e52399d2bfe7aac0c678ee161021fcbb7f1920630a5034
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6cd7734c1b0328ae77e52399d2bfe7aac0c678ee161021fcbb7f1920630a5034", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cd7734c1b0328ae77e52399d2bfe7aac0c678ee161021fcbb7f1920630a5034", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cd7734c1b0328ae77e52399d2bfe7aac0c678ee161021fcbb7f1920630a5034", kill_on_drop: false }`
[INFO] [stdout] 6cd7734c1b0328ae77e52399d2bfe7aac0c678ee161021fcbb7f1920630a5034
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8613e36f45e96244087b2e375bc9120d06d13072bc1dc6e367f11608f57d9b0e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8613e36f45e96244087b2e375bc9120d06d13072bc1dc6e367f11608f57d9b0e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking nix v0.19.1
[INFO] [stderr]     Checking 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: 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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.68s
[INFO] running `Command { std: "docker" "inspect" "8613e36f45e96244087b2e375bc9120d06d13072bc1dc6e367f11608f57d9b0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8613e36f45e96244087b2e375bc9120d06d13072bc1dc6e367f11608f57d9b0e", kill_on_drop: false }`
[INFO] [stdout] 8613e36f45e96244087b2e375bc9120d06d13072bc1dc6e367f11608f57d9b0e