[INFO] fetching crate dutree 0.2.16...
[INFO] checking dutree-0.2.16 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate dutree 0.2.16 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate dutree 0.2.16 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 dutree 0.2.16
[INFO] finished tweaking crates.io crate dutree 0.2.16
[INFO] tweaked toml for crates.io crate dutree 0.2.16 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate dutree 0.2.16 already has a lockfile, it will not be regenerated
[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-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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a51864a769bd3246531baae537ec6c3bd2dbd505e0aa4d1b6d07f93354ab4070
[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" "a51864a769bd3246531baae537ec6c3bd2dbd505e0aa4d1b6d07f93354ab4070", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a51864a769bd3246531baae537ec6c3bd2dbd505e0aa4d1b6d07f93354ab4070", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a51864a769bd3246531baae537ec6c3bd2dbd505e0aa4d1b6d07f93354ab4070", kill_on_drop: false }`
[INFO] [stdout] a51864a769bd3246531baae537ec6c3bd2dbd505e0aa4d1b6d07f93354ab4070
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 076e6297bbd9c67d2e1e062a467dbe11f23388fea961dcad20e6416cd8a5f63d
[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" "076e6297bbd9c67d2e1e062a467dbe11f23388fea961dcad20e6416cd8a5f63d", kill_on_drop: false }`
[INFO] [stderr]     Checking arc-swap v0.4.6
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking terminal_size v0.1.12
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking signal-hook v0.1.15
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking dutree v0.2.16 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.20s
[INFO] running `Command { std: "docker" "inspect" "076e6297bbd9c67d2e1e062a467dbe11f23388fea961dcad20e6416cd8a5f63d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "076e6297bbd9c67d2e1e062a467dbe11f23388fea961dcad20e6416cd8a5f63d", kill_on_drop: false }`
[INFO] [stdout] 076e6297bbd9c67d2e1e062a467dbe11f23388fea961dcad20e6416cd8a5f63d