[INFO] fetching crate ptracer 0.3.1...
[INFO] checking ptracer-0.3.1 against beta for pr-78714
[INFO] extracting crate ptracer 0.3.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate ptracer 0.3.1 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 ptracer 0.3.1
[INFO] finished tweaking crates.io crate ptracer 0.3.1
[INFO] tweaked toml for crates.io crate ptracer 0.3.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate ptracer 0.3.1 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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 6aaa514d5564163cae7cd9440789ee3ae76ae39fe8c0f2eb5b9237ba83ceb74f
[INFO] running `Command { std: "docker" "start" "-a" "6aaa514d5564163cae7cd9440789ee3ae76ae39fe8c0f2eb5b9237ba83ceb74f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6aaa514d5564163cae7cd9440789ee3ae76ae39fe8c0f2eb5b9237ba83ceb74f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6aaa514d5564163cae7cd9440789ee3ae76ae39fe8c0f2eb5b9237ba83ceb74f", kill_on_drop: false }`
[INFO] [stdout] 6aaa514d5564163cae7cd9440789ee3ae76ae39fe8c0f2eb5b9237ba83ceb74f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] d0438e11eb58d788e5a06dbeb1663b6a5f0413a6b5fecc6bc76423d83d22c0e5
[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" "d0438e11eb58d788e5a06dbeb1663b6a5f0413a6b5fecc6bc76423d83d22c0e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]     Checking libflate v1.0.2
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking procfs v0.7.9
[INFO] [stderr]    Compiling scroll_derive v0.10.2
[INFO] [stderr]     Checking scroll v0.10.1
[INFO] [stderr]     Checking goblin v0.1.3
[INFO] [stderr]     Checking ptracer v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.12s
[INFO] running `Command { std: "docker" "inspect" "d0438e11eb58d788e5a06dbeb1663b6a5f0413a6b5fecc6bc76423d83d22c0e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0438e11eb58d788e5a06dbeb1663b6a5f0413a6b5fecc6bc76423d83d22c0e5", kill_on_drop: false }`
[INFO] [stdout] d0438e11eb58d788e5a06dbeb1663b6a5f0413a6b5fecc6bc76423d83d22c0e5