[INFO] fetching crate plumtree 0.1.1...
[INFO] checking plumtree-0.1.1 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate plumtree 0.1.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate plumtree 0.1.1 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate plumtree 0.1.1
[INFO] finished tweaking crates.io crate plumtree 0.1.1
[INFO] tweaked toml for crates.io crate plumtree 0.1.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9096db8b597617beb1a8d1fe53f4412a31f6a1ba73270f61fb691de7124e331e
[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" "9096db8b597617beb1a8d1fe53f4412a31f6a1ba73270f61fb691de7124e331e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9096db8b597617beb1a8d1fe53f4412a31f6a1ba73270f61fb691de7124e331e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9096db8b597617beb1a8d1fe53f4412a31f6a1ba73270f61fb691de7124e331e", kill_on_drop: false }`
[INFO] [stdout] 9096db8b597617beb1a8d1fe53f4412a31f6a1ba73270f61fb691de7124e331e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "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] 817b8cd04edf46fa4ef549536391885baf1f9f35bff175bf743b7d2e6a5e1c9c
[INFO] running `Command { std: "docker" "start" "-a" "817b8cd04edf46fa4ef549536391885baf1f9f35bff175bf743b7d2e6a5e1c9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking plumtree v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.60s
[INFO] running `Command { std: "docker" "inspect" "817b8cd04edf46fa4ef549536391885baf1f9f35bff175bf743b7d2e6a5e1c9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "817b8cd04edf46fa4ef549536391885baf1f9f35bff175bf743b7d2e6a5e1c9c", kill_on_drop: false }`
[INFO] [stdout] 817b8cd04edf46fa4ef549536391885baf1f9f35bff175bf743b7d2e6a5e1c9c