[INFO] cloning repository https://github.com/feelmyears/eecs-395-hw2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/feelmyears/eecs-395-hw2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffeelmyears%2Feecs-395-hw2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffeelmyears%2Feecs-395-hw2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2076a769e25c9e258db0e3caf978a89d5c276054
[INFO] checking feelmyears/eecs-395-hw2 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffeelmyears%2Feecs-395-hw2" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/feelmyears/eecs-395-hw2 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/feelmyears/eecs-395-hw2
[INFO] finished tweaking git repo https://github.com/feelmyears/eecs-395-hw2
[INFO] tweaked toml for git repo https://github.com/feelmyears/eecs-395-hw2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/feelmyears/eecs-395-hw2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memchr v1.0.1
[INFO] [stderr]   Downloaded aho-corasick v0.6.3
[INFO] [stderr]   Downloaded regex v0.2.1
[INFO] [stderr]   Downloaded thread_local v0.3.3
[INFO] [stderr]   Downloaded regex-syntax v0.4.0
[INFO] [stderr]   Downloaded thread-id v3.0.0
[INFO] [stderr]   Downloaded unreachable v0.1.1
[INFO] [stderr]   Downloaded libc v0.2.21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37598d260ba06791c9fca3bbe2740dedab6b36af2e93c8631288f18c221ea9d3
[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" "37598d260ba06791c9fca3bbe2740dedab6b36af2e93c8631288f18c221ea9d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37598d260ba06791c9fca3bbe2740dedab6b36af2e93c8631288f18c221ea9d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37598d260ba06791c9fca3bbe2740dedab6b36af2e93c8631288f18c221ea9d3", kill_on_drop: false }`
[INFO] [stdout] 37598d260ba06791c9fca3bbe2740dedab6b36af2e93c8631288f18c221ea9d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bec41c060f98c396edbe9e039e8f1c9114a9c76942089b91a6f582834de87b46
[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" "bec41c060f98c396edbe9e039e8f1c9114a9c76942089b91a6f582834de87b46", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.21
[INFO] [stderr]     Checking regex-syntax v0.4.0
[INFO] [stderr]     Checking thread-id v3.0.0
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking thread_local v0.3.3
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]     Checking regex v0.2.1
[INFO] [stderr]     Checking hw2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.19s
[INFO] running `Command { std: "docker" "inspect" "bec41c060f98c396edbe9e039e8f1c9114a9c76942089b91a6f582834de87b46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bec41c060f98c396edbe9e039e8f1c9114a9c76942089b91a6f582834de87b46", kill_on_drop: false }`
[INFO] [stdout] bec41c060f98c396edbe9e039e8f1c9114a9c76942089b91a6f582834de87b46