[INFO] cloning repository https://github.com/lazertooth/hello_world
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lazertooth/hello_world" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flazertooth%2Fhello_world", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flazertooth%2Fhello_world'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2c134e5d1ae84f720d0a14b09a7a99c856fd9a05
[INFO] checking lazertooth/hello_world against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flazertooth%2Fhello_world" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  36% (415/1146)   
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Checking out files: 100% (1146/1146), done.
[INFO] validating manifest of git repo https://github.com/lazertooth/hello_world 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 git repo https://github.com/lazertooth/hello_world
[INFO] finished tweaking git repo https://github.com/lazertooth/hello_world
[INFO] tweaked toml for git repo https://github.com/lazertooth/hello_world written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/lazertooth/hello_world 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] [stderr]     Updating git repository `https://github.com/rust-lang-nursery/rand.git`
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d83397e3461a06dd5cccba97e41ba13cdfbf13a169914fe9b53ab8f8be7730c5
[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" "d83397e3461a06dd5cccba97e41ba13cdfbf13a169914fe9b53ab8f8be7730c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d83397e3461a06dd5cccba97e41ba13cdfbf13a169914fe9b53ab8f8be7730c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d83397e3461a06dd5cccba97e41ba13cdfbf13a169914fe9b53ab8f8be7730c5", kill_on_drop: false }`
[INFO] [stdout] d83397e3461a06dd5cccba97e41ba13cdfbf13a169914fe9b53ab8f8be7730c5
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f0140fcf63c06d248cb07ee21b20fe1628de4a3beb365f9f46e9cf517bc770d
[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" "4f0140fcf63c06d248cb07ee21b20fe1628de4a3beb365f9f46e9cf517bc770d", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.5.1 (https://github.com/rust-lang-nursery/rand.git#4dd10bcb)
[INFO] [stderr]     Checking rand_chacha v0.2.1 (https://github.com/rust-lang-nursery/rand.git#4dd10bcb)
[INFO] [stderr]     Checking rand v0.7.2 (https://github.com/rust-lang-nursery/rand.git#4dd10bcb)
[INFO] [stderr]     Checking hello_world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.46s
[INFO] running `Command { std: "docker" "inspect" "4f0140fcf63c06d248cb07ee21b20fe1628de4a3beb365f9f46e9cf517bc770d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f0140fcf63c06d248cb07ee21b20fe1628de4a3beb365f9f46e9cf517bc770d", kill_on_drop: false }`
[INFO] [stdout] 4f0140fcf63c06d248cb07ee21b20fe1628de4a3beb365f9f46e9cf517bc770d