[INFO] fetching crate dutree 0.2.16...
[INFO] checking dutree-0.2.16 against beta for pr-78714
[INFO] extracting crate dutree 0.2.16 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate dutree 0.2.16 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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-0/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" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", 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] b099e90f086faf453b709eb5277fdcaf59690b79da4f661acff0687e9b4bf660
[INFO] running `Command { std: "docker" "start" "-a" "b099e90f086faf453b709eb5277fdcaf59690b79da4f661acff0687e9b4bf660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b099e90f086faf453b709eb5277fdcaf59690b79da4f661acff0687e9b4bf660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b099e90f086faf453b709eb5277fdcaf59690b79da4f661acff0687e9b4bf660", kill_on_drop: false }`
[INFO] [stdout] b099e90f086faf453b709eb5277fdcaf59690b79da4f661acff0687e9b4bf660
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] 1fb7f727956ff3bd6b182fe86f08e3e1b18ac46c47f1b5d5be66df016cd20287
[INFO] running `Command { std: "docker" "start" "-a" "1fb7f727956ff3bd6b182fe86f08e3e1b18ac46c47f1b5d5be66df016cd20287", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]     Checking arc-swap v0.4.6
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking terminal_size v0.1.12
[INFO] [stderr]     Checking signal-hook v0.1.15
[INFO] [stderr]     Checking dutree v0.2.16 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.57s
[INFO] running `Command { std: "docker" "inspect" "1fb7f727956ff3bd6b182fe86f08e3e1b18ac46c47f1b5d5be66df016cd20287", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fb7f727956ff3bd6b182fe86f08e3e1b18ac46c47f1b5d5be66df016cd20287", kill_on_drop: false }`
[INFO] [stdout] 1fb7f727956ff3bd6b182fe86f08e3e1b18ac46c47f1b5d5be66df016cd20287