[INFO] cloning repository https://github.com/fr1550n/r_derefs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fr1550n/r_derefs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffr1550n%2Fr_derefs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffr1550n%2Fr_derefs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5414f19186e5467591cb557ebb79db166874f792
[INFO] checking fr1550n/r_derefs against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffr1550n%2Fr_derefs" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fr1550n/r_derefs on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fr1550n/r_derefs
[INFO] finished tweaking git repo https://github.com/fr1550n/r_derefs
[INFO] tweaked toml for git repo https://github.com/fr1550n/r_derefs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/fr1550n/r_derefs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df04e984d2bf8191266d002b0866c664361a2709766992552449493151cae0a9
[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" "df04e984d2bf8191266d002b0866c664361a2709766992552449493151cae0a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df04e984d2bf8191266d002b0866c664361a2709766992552449493151cae0a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df04e984d2bf8191266d002b0866c664361a2709766992552449493151cae0a9", kill_on_drop: false }`
[INFO] [stdout] df04e984d2bf8191266d002b0866c664361a2709766992552449493151cae0a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dae9c48c589c0aa32564b6d93e2b138dbfbc6c781734346a37702f292f48cbe9
[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" "dae9c48c589c0aa32564b6d93e2b138dbfbc6c781734346a37702f292f48cbe9", kill_on_drop: false }`
[INFO] [stderr]     Checking references v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "dae9c48c589c0aa32564b6d93e2b138dbfbc6c781734346a37702f292f48cbe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dae9c48c589c0aa32564b6d93e2b138dbfbc6c781734346a37702f292f48cbe9", kill_on_drop: false }`
[INFO] [stdout] dae9c48c589c0aa32564b6d93e2b138dbfbc6c781734346a37702f292f48cbe9