[INFO] fetching crate num-traits 0.2.15...
[INFO] checking num-traits-0.2.15 against master#a09c668c965f735f4cd59e7158662b9daa0b71ba for pr-98370
[INFO] extracting crate num-traits 0.2.15 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate num-traits 0.2.15 on toolchain a09c668c965f735f4cd59e7158662b9daa0b71ba
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a09c668c965f735f4cd59e7158662b9daa0b71ba" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate num-traits 0.2.15
[INFO] finished tweaking crates.io crate num-traits 0.2.15
[INFO] tweaked toml for crates.io crate num-traits 0.2.15 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a09c668c965f735f4cd59e7158662b9daa0b71ba" "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" "+a09c668c965f735f4cd59e7158662b9daa0b71ba" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+a09c668c965f735f4cd59e7158662b9daa0b71ba" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] acb43924d2cb44e472a0bf08f898a6ff3cfc6369bf91f2803aff484caa5d9e03
[INFO] running `Command { std: "docker" "start" "-a" "acb43924d2cb44e472a0bf08f898a6ff3cfc6369bf91f2803aff484caa5d9e03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "acb43924d2cb44e472a0bf08f898a6ff3cfc6369bf91f2803aff484caa5d9e03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acb43924d2cb44e472a0bf08f898a6ff3cfc6369bf91f2803aff484caa5d9e03", kill_on_drop: false }`
[INFO] [stdout] acb43924d2cb44e472a0bf08f898a6ff3cfc6369bf91f2803aff484caa5d9e03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+a09c668c965f735f4cd59e7158662b9daa0b71ba" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb00758502bfd1bba8e5c731a4112a614baa5bbf74f9821669fe48b097a6a24b
[INFO] running `Command { std: "docker" "start" "-a" "fb00758502bfd1bba8e5c731a4112a614baa5bbf74f9821669fe48b097a6a24b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.15 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.27s
[INFO] running `Command { std: "docker" "inspect" "fb00758502bfd1bba8e5c731a4112a614baa5bbf74f9821669fe48b097a6a24b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb00758502bfd1bba8e5c731a4112a614baa5bbf74f9821669fe48b097a6a24b", kill_on_drop: false }`
[INFO] [stdout] fb00758502bfd1bba8e5c731a4112a614baa5bbf74f9821669fe48b097a6a24b