[INFO] cloning repository https://github.com/AaronLeon/eecs395-rust-hw4
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AaronLeon/eecs395-rust-hw4" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAaronLeon%2Feecs395-rust-hw4", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAaronLeon%2Feecs395-rust-hw4'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bb9565dc2f9b7fb45222cd68899960e2b442378b
[INFO] checking AaronLeon/eecs395-rust-hw4 against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAaronLeon%2Feecs395-rust-hw4" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AaronLeon/eecs395-rust-hw4 on toolchain 8b72f65b805cbe4c261de45030d663f524f27376
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AaronLeon/eecs395-rust-hw4
[INFO] finished tweaking git repo https://github.com/AaronLeon/eecs395-rust-hw4
[INFO] tweaked toml for git repo https://github.com/AaronLeon/eecs395-rust-hw4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/AaronLeon/eecs395-rust-hw4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-integer v0.1.34
[INFO] [stderr]   Downloaded num-traits v0.1.37
[INFO] [stderr]   Downloaded num-iter v0.1.33
[INFO] [stderr]   Downloaded num v0.1.37
[INFO] [stderr]   Downloaded redox_syscall v0.1.17
[INFO] [stderr]   Downloaded time v0.1.37
[INFO] [stderr]   Downloaded chrono v0.3.1
[INFO] [stderr]   Downloaded libc v0.2.22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "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] 283f69ef389fddcf9b9f14b353adfbea07932ba46e12ba7c6516a333a68ab084
[INFO] running `Command { std: "docker" "start" "-a" "283f69ef389fddcf9b9f14b353adfbea07932ba46e12ba7c6516a333a68ab084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "283f69ef389fddcf9b9f14b353adfbea07932ba46e12ba7c6516a333a68ab084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "283f69ef389fddcf9b9f14b353adfbea07932ba46e12ba7c6516a333a68ab084", kill_on_drop: false }`
[INFO] [stdout] 283f69ef389fddcf9b9f14b353adfbea07932ba46e12ba7c6516a333a68ab084
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68f336426538e4f971c793f3b09fc4d9bc8f2d31e4d7a4ef3fc38459e2614ad9
[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" "68f336426538e4f971c793f3b09fc4d9bc8f2d31e4d7a4ef3fc38459e2614ad9", kill_on_drop: false }`
[INFO] [stderr]     Checking num-traits v0.1.37
[INFO] [stderr]     Checking libc v0.2.22
[INFO] [stderr]     Checking time v0.1.37
[INFO] [stderr]     Checking num-integer v0.1.34
[INFO] [stderr]     Checking num-iter v0.1.33
[INFO] [stderr]     Checking num v0.1.37
[INFO] [stderr]     Checking chrono v0.3.1
[INFO] [stderr]     Checking hw4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.96s
[INFO] running `Command { std: "docker" "inspect" "68f336426538e4f971c793f3b09fc4d9bc8f2d31e4d7a4ef3fc38459e2614ad9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68f336426538e4f971c793f3b09fc4d9bc8f2d31e4d7a4ef3fc38459e2614ad9", kill_on_drop: false }`
[INFO] [stdout] 68f336426538e4f971c793f3b09fc4d9bc8f2d31e4d7a4ef3fc38459e2614ad9