[INFO] cloning repository https://github.com/xiaohulu/grokking-algorithms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xiaohulu/grokking-algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiaohulu%2Fgrokking-algorithms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiaohulu%2Fgrokking-algorithms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] efed9db2e1b83373fa631d7de2cd01377a7b3db9
[INFO] checking xiaohulu/grokking-algorithms against master#f5f33ec0e0455eefa72fc5567eb1280a4d5ee206 for pr-83312
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiaohulu%2Fgrokking-algorithms" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xiaohulu/grokking-algorithms on toolchain f5f33ec0e0455eefa72fc5567eb1280a4d5ee206
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xiaohulu/grokking-algorithms
[INFO] finished tweaking git repo https://github.com/xiaohulu/grokking-algorithms
[INFO] tweaked toml for git repo https://github.com/xiaohulu/grokking-algorithms written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/xiaohulu/grokking-algorithms already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6040077a3f352d3f3e259deb0645f024a1e25a83ce1d429b48748cf18c9ea868
[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" "6040077a3f352d3f3e259deb0645f024a1e25a83ce1d429b48748cf18c9ea868", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6040077a3f352d3f3e259deb0645f024a1e25a83ce1d429b48748cf18c9ea868", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6040077a3f352d3f3e259deb0645f024a1e25a83ce1d429b48748cf18c9ea868", kill_on_drop: false }`
[INFO] [stdout] 6040077a3f352d3f3e259deb0645f024a1e25a83ce1d429b48748cf18c9ea868
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f3949e6ea57f08e720b545981fa31e9ee4dd766ebcd82cd984b4a882a8ea6c1
[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" "8f3949e6ea57f08e720b545981fa31e9ee4dd766ebcd82cd984b4a882a8ea6c1", kill_on_drop: false }`
[INFO] [stderr]     Checking grokking_algorithms1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.69s
[INFO] running `Command { std: "docker" "inspect" "8f3949e6ea57f08e720b545981fa31e9ee4dd766ebcd82cd984b4a882a8ea6c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f3949e6ea57f08e720b545981fa31e9ee4dd766ebcd82cd984b4a882a8ea6c1", kill_on_drop: false }`
[INFO] [stdout] 8f3949e6ea57f08e720b545981fa31e9ee4dd766ebcd82cd984b4a882a8ea6c1