[INFO] fetching crate treeflection 0.1.32...
[INFO] building treeflection-0.1.32 against 1.44.0 for beta-1.45-1
[INFO] extracting crate treeflection 0.1.32 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate treeflection 0.1.32 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate treeflection 0.1.32
[INFO] finished tweaking crates.io crate treeflection 0.1.32
[INFO] tweaked toml for crates.io crate treeflection 0.1.32 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3d20fc876cca63e55bdf2459b5b5c5a7abd1adcf06a10d5606b894d6c34eb01b
[INFO] running `"docker" "start" "-a" "3d20fc876cca63e55bdf2459b5b5c5a7abd1adcf06a10d5606b894d6c34eb01b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling treeflection v0.1.32 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.30s
[INFO] running `"docker" "inspect" "3d20fc876cca63e55bdf2459b5b5c5a7abd1adcf06a10d5606b894d6c34eb01b"`
[INFO] running `"docker" "rm" "-f" "3d20fc876cca63e55bdf2459b5b5c5a7abd1adcf06a10d5606b894d6c34eb01b"`
[INFO] [stdout] 3d20fc876cca63e55bdf2459b5b5c5a7abd1adcf06a10d5606b894d6c34eb01b
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9784def6dd64d5d216bcfa2f2d9dfb1beca6c002a50723bfe215f84712b6c853
[INFO] running `"docker" "start" "-a" "9784def6dd64d5d216bcfa2f2d9dfb1beca6c002a50723bfe215f84712b6c853"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling treeflection v0.1.32 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.05s
[INFO] running `"docker" "inspect" "9784def6dd64d5d216bcfa2f2d9dfb1beca6c002a50723bfe215f84712b6c853"`
[INFO] running `"docker" "rm" "-f" "9784def6dd64d5d216bcfa2f2d9dfb1beca6c002a50723bfe215f84712b6c853"`
[INFO] [stdout] 9784def6dd64d5d216bcfa2f2d9dfb1beca6c002a50723bfe215f84712b6c853