[INFO] fetching crate prisoners_switches 0.1.0...
[INFO] checking prisoners_switches-0.1.0 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate prisoners_switches 0.1.0 into /workspace/builds/worker-18/source
[INFO] validating manifest of crates.io crate prisoners_switches 0.1.0 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prisoners_switches 0.1.0
[INFO] finished tweaking crates.io crate prisoners_switches 0.1.0
[INFO] tweaked toml for crates.io crate prisoners_switches 0.1.0 written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c53718cb81d57be9c6b1fdad5ca89afcec00f816e336d0ecc00e926f0d3844e0
[INFO] running `Command { std: "docker" "start" "-a" "c53718cb81d57be9c6b1fdad5ca89afcec00f816e336d0ecc00e926f0d3844e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c53718cb81d57be9c6b1fdad5ca89afcec00f816e336d0ecc00e926f0d3844e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c53718cb81d57be9c6b1fdad5ca89afcec00f816e336d0ecc00e926f0d3844e0", kill_on_drop: false }`
[INFO] [stdout] c53718cb81d57be9c6b1fdad5ca89afcec00f816e336d0ecc00e926f0d3844e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bdb9df9c27d9c25e28c5932ab7fd6fc2401d2e418529c2062930b1ca8965dc2
[INFO] running `Command { std: "docker" "start" "-a" "1bdb9df9c27d9c25e28c5932ab7fd6fc2401d2e418529c2062930b1ca8965dc2", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking prisoners_switches v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `Command { std: "docker" "inspect" "1bdb9df9c27d9c25e28c5932ab7fd6fc2401d2e418529c2062930b1ca8965dc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bdb9df9c27d9c25e28c5932ab7fd6fc2401d2e418529c2062930b1ca8965dc2", kill_on_drop: false }`
[INFO] [stdout] 1bdb9df9c27d9c25e28c5932ab7fd6fc2401d2e418529c2062930b1ca8965dc2