[INFO] fetching crate jackiechan 0.0.2...
[INFO] checking jackiechan-0.0.2 against beta for pr-78714
[INFO] extracting crate jackiechan 0.0.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate jackiechan 0.0.2 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 jackiechan 0.0.2
[INFO] finished tweaking crates.io crate jackiechan 0.0.2
[INFO] tweaked toml for crates.io crate jackiechan 0.0.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 5c07f4d2ce95cd96e88943f2bcfd52fa64e5b96c4abae28fb753bd5ecd61deb0
[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" "5c07f4d2ce95cd96e88943f2bcfd52fa64e5b96c4abae28fb753bd5ecd61deb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c07f4d2ce95cd96e88943f2bcfd52fa64e5b96c4abae28fb753bd5ecd61deb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c07f4d2ce95cd96e88943f2bcfd52fa64e5b96c4abae28fb753bd5ecd61deb0", kill_on_drop: false }`
[INFO] [stdout] 5c07f4d2ce95cd96e88943f2bcfd52fa64e5b96c4abae28fb753bd5ecd61deb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] fb2028edc5004738d75f52abe8a4711b6a1e4cc8cffe00b4ca9068e8a68d0952
[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" "fb2028edc5004738d75f52abe8a4711b6a1e4cc8cffe00b4ca9068e8a68d0952", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking easy-parallel v3.1.0
[INFO] [stderr]     Checking jackiechan v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-lite v1.11.2
[INFO] [stderr]     Checking blocking v0.6.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.68s
[INFO] running `Command { std: "docker" "inspect" "fb2028edc5004738d75f52abe8a4711b6a1e4cc8cffe00b4ca9068e8a68d0952", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb2028edc5004738d75f52abe8a4711b6a1e4cc8cffe00b4ca9068e8a68d0952", kill_on_drop: false }`
[INFO] [stdout] fb2028edc5004738d75f52abe8a4711b6a1e4cc8cffe00b4ca9068e8a68d0952