[INFO] fetching crate is-root 0.1.2...
[INFO] checking is-root-0.1.2 against beta for pr-78714
[INFO] extracting crate is-root 0.1.2 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate is-root 0.1.2 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 is-root 0.1.2
[INFO] finished tweaking crates.io crate is-root 0.1.2
[INFO] tweaked toml for crates.io crate is-root 0.1.2 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate is-root 0.1.2 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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stdout] 9fba7568c90284223255d6f1be50e41e7229af55d5d9236bc432df2f857d6a31
[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" "9fba7568c90284223255d6f1be50e41e7229af55d5d9236bc432df2f857d6a31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9fba7568c90284223255d6f1be50e41e7229af55d5d9236bc432df2f857d6a31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fba7568c90284223255d6f1be50e41e7229af55d5d9236bc432df2f857d6a31", kill_on_drop: false }`
[INFO] [stdout] 9fba7568c90284223255d6f1be50e41e7229af55d5d9236bc432df2f857d6a31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stdout] a984bccbdeadcf77d62b73aceba7d37acd167a9c805e87b18ee34183d4a1be71
[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" "a984bccbdeadcf77d62b73aceba7d37acd167a9c805e87b18ee34183d4a1be71", kill_on_drop: false }`
[INFO] [stderr]     Checking users v0.10.0
[INFO] [stderr]     Checking is-root v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "a984bccbdeadcf77d62b73aceba7d37acd167a9c805e87b18ee34183d4a1be71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a984bccbdeadcf77d62b73aceba7d37acd167a9c805e87b18ee34183d4a1be71", kill_on_drop: false }`
[INFO] [stdout] a984bccbdeadcf77d62b73aceba7d37acd167a9c805e87b18ee34183d4a1be71