[INFO] fetching crate treefy 0.1.0...
[INFO] checking treefy-0.1.0 against try#5fdfba63a96c5e8ae0ebf6b8b66853110277087d for pr-73166
[INFO] extracting crate treefy 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate treefy 0.1.0 on toolchain 5fdfba63a96c5e8ae0ebf6b8b66853110277087d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate treefy 0.1.0
[INFO] finished tweaking crates.io crate treefy 0.1.0
[INFO] tweaked toml for crates.io crate treefy 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate treefy 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ccc4e7b79899e2649c5becd16990c421702bdf7f1747935a465f4676ee628ad9
[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" "ccc4e7b79899e2649c5becd16990c421702bdf7f1747935a465f4676ee628ad9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccc4e7b79899e2649c5becd16990c421702bdf7f1747935a465f4676ee628ad9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccc4e7b79899e2649c5becd16990c421702bdf7f1747935a465f4676ee628ad9", kill_on_drop: false }`
[INFO] [stdout] ccc4e7b79899e2649c5becd16990c421702bdf7f1747935a465f4676ee628ad9
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+5fdfba63a96c5e8ae0ebf6b8b66853110277087d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 533fbc7348035297d2e038adb21abba60bfbfb51e0ff3dbf47fb1635a7e6a5d5
[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" "533fbc7348035297d2e038adb21abba60bfbfb51e0ff3dbf47fb1635a7e6a5d5", kill_on_drop: false }`
[INFO] [stderr]     Checking treefy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "533fbc7348035297d2e038adb21abba60bfbfb51e0ff3dbf47fb1635a7e6a5d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "533fbc7348035297d2e038adb21abba60bfbfb51e0ff3dbf47fb1635a7e6a5d5", kill_on_drop: false }`
[INFO] [stdout] 533fbc7348035297d2e038adb21abba60bfbfb51e0ff3dbf47fb1635a7e6a5d5