[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 try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaltonCompSci%2Fcs320_vssh_upgraded" "/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/DaltonCompSci/cs320_vssh_upgraded on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "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-0/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "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-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b8aea8a8abc7dbe26f8a75491cf3771868cbb67df1c6ca724becf77b1485c3ae
[INFO] running `Command { std: "docker" "start" "-a" "b8aea8a8abc7dbe26f8a75491cf3771868cbb67df1c6ca724becf77b1485c3ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8aea8a8abc7dbe26f8a75491cf3771868cbb67df1c6ca724becf77b1485c3ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8aea8a8abc7dbe26f8a75491cf3771868cbb67df1c6ca724becf77b1485c3ae", kill_on_drop: false }`
[INFO] [stdout] b8aea8a8abc7dbe26f8a75491cf3771868cbb67df1c6ca724becf77b1485c3ae
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cd80fa455b89fc0de694c360d694e9d5a7075b6c2f149c87a43f5f17de16a0bc
[INFO] running `Command { std: "docker" "start" "-a" "cd80fa455b89fc0de694c360d694e9d5a7075b6c2f149c87a43f5f17de16a0bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[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 10.85s
[INFO] running `Command { std: "docker" "inspect" "cd80fa455b89fc0de694c360d694e9d5a7075b6c2f149c87a43f5f17de16a0bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd80fa455b89fc0de694c360d694e9d5a7075b6c2f149c87a43f5f17de16a0bc", kill_on_drop: false }`
[INFO] [stdout] cd80fa455b89fc0de694c360d694e9d5a7075b6c2f149c87a43f5f17de16a0bc
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8483b745fd2c8f63460bf76c69f4c6b831fad8d112c4ca51bbf595388e99bdc8
[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" "8483b745fd2c8f63460bf76c69f4c6b831fad8d112c4ca51bbf595388e99bdc8", kill_on_drop: false }`
[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 0.73s
[INFO] running `Command { std: "docker" "inspect" "8483b745fd2c8f63460bf76c69f4c6b831fad8d112c4ca51bbf595388e99bdc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8483b745fd2c8f63460bf76c69f4c6b831fad8d112c4ca51bbf595388e99bdc8", kill_on_drop: false }`
[INFO] [stdout] 8483b745fd2c8f63460bf76c69f4c6b831fad8d112c4ca51bbf595388e99bdc8
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 20ab4fc9c23bea34bd807ba9a82be7b68b0575ab2f176c4230d0b53f12eb71e2
[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" "20ab4fc9c23bea34bd807ba9a82be7b68b0575ab2f176c4230d0b53f12eb71e2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `changed_dir`
[INFO] [stderr]   --> src/main.rs:23:18
[INFO] [stderr]    |
[INFO] [stderr] 23 |              let changed_dir = env::set_current_dir(&path).is_ok();
[INFO] [stderr]    |                  ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_changed_dir`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.97s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cs320_vssh-527919329dea8fe1)
[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" "20ab4fc9c23bea34bd807ba9a82be7b68b0575ab2f176c4230d0b53f12eb71e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20ab4fc9c23bea34bd807ba9a82be7b68b0575ab2f176c4230d0b53f12eb71e2", kill_on_drop: false }`
[INFO] [stdout] 20ab4fc9c23bea34bd807ba9a82be7b68b0575ab2f176c4230d0b53f12eb71e2