[INFO] cloning repository https://github.com/dave-filion/rust-linked-lists
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dave-filion/rust-linked-lists" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdave-filion%2Frust-linked-lists", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdave-filion%2Frust-linked-lists'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2aaeeb56a63affed772ede5f132fe2cdaae63e53
[INFO] checking dave-filion/rust-linked-lists against try#4a04890980766cc79878135f5ade8c0c4321e943 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdave-filion%2Frust-linked-lists" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dave-filion/rust-linked-lists on toolchain 4a04890980766cc79878135f5ade8c0c4321e943
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dave-filion/rust-linked-lists
[INFO] finished tweaking git repo https://github.com/dave-filion/rust-linked-lists
[INFO] tweaked toml for git repo https://github.com/dave-filion/rust-linked-lists written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/dave-filion/rust-linked-lists already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 424c1228b8bd84a69f6bf8e6c721c64b066250134dc4ab524e2774a39cb85c40
[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" "424c1228b8bd84a69f6bf8e6c721c64b066250134dc4ab524e2774a39cb85c40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "424c1228b8bd84a69f6bf8e6c721c64b066250134dc4ab524e2774a39cb85c40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "424c1228b8bd84a69f6bf8e6c721c64b066250134dc4ab524e2774a39cb85c40", kill_on_drop: false }`
[INFO] [stdout] 424c1228b8bd84a69f6bf8e6c721c64b066250134dc4ab524e2774a39cb85c40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "check" "--frozen" "--all" "--all-targets" "--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] 76a1dc8ef63a278480c1bf0cf578ed31ca93eb2eeaee152e41a78a4cfa20c71e
[INFO] running `Command { std: "docker" "start" "-a" "76a1dc8ef63a278480c1bf0cf578ed31ca93eb2eeaee152e41a78a4cfa20c71e", kill_on_drop: false }`
[INFO] [stderr]     Checking linked_lists v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "76a1dc8ef63a278480c1bf0cf578ed31ca93eb2eeaee152e41a78a4cfa20c71e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76a1dc8ef63a278480c1bf0cf578ed31ca93eb2eeaee152e41a78a4cfa20c71e", kill_on_drop: false }`
[INFO] [stdout] 76a1dc8ef63a278480c1bf0cf578ed31ca93eb2eeaee152e41a78a4cfa20c71e