[INFO] cloning repository https://github.com/nix-community/nix-user-chroot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nix-community/nix-user-chroot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnix-community%2Fnix-user-chroot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnix-community%2Fnix-user-chroot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 96951f744c6145d141a861aa2e6db5000c948cd3
[INFO] checking nix-community/nix-user-chroot against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnix-community%2Fnix-user-chroot" "/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/nix-community/nix-user-chroot on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nix-community/nix-user-chroot
[INFO] finished tweaking git repo https://github.com/nix-community/nix-user-chroot
[INFO] tweaked toml for git repo https://github.com/nix-community/nix-user-chroot written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/nix-community/nix-user-chroot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9fc775d014462e85013ea59dca32672f8b94e6a241ebfea63bbd3e9d8edd4a1f
[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" "9fc775d014462e85013ea59dca32672f8b94e6a241ebfea63bbd3e9d8edd4a1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9fc775d014462e85013ea59dca32672f8b94e6a241ebfea63bbd3e9d8edd4a1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fc775d014462e85013ea59dca32672f8b94e6a241ebfea63bbd3e9d8edd4a1f", kill_on_drop: false }`
[INFO] [stdout] 9fc775d014462e85013ea59dca32672f8b94e6a241ebfea63bbd3e9d8edd4a1f
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 848e2617ea277a5d66a642157cec986a67dc2d6bd8f1ff1464e60bd39b4fce55
[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" "848e2617ea277a5d66a642157cec986a67dc2d6bd8f1ff1464e60bd39b4fce55", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling nix-user-chroot v1.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.56s
[INFO] running `Command { std: "docker" "inspect" "848e2617ea277a5d66a642157cec986a67dc2d6bd8f1ff1464e60bd39b4fce55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "848e2617ea277a5d66a642157cec986a67dc2d6bd8f1ff1464e60bd39b4fce55", kill_on_drop: false }`
[INFO] [stdout] 848e2617ea277a5d66a642157cec986a67dc2d6bd8f1ff1464e60bd39b4fce55