[INFO] fetching crate uu_wc 0.0.1...
[INFO] checking uu_wc-0.0.1 against beta for pr-78714
[INFO] extracting crate uu_wc 0.0.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate uu_wc 0.0.1 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 uu_wc 0.0.1
[INFO] finished tweaking crates.io crate uu_wc 0.0.1
[INFO] tweaked toml for crates.io crate uu_wc 0.0.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate uu_wc 0.0.1 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 058bec9b9909972566d21f0e8bd74bc56679e43286ab922ac053753268f34466
[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" "058bec9b9909972566d21f0e8bd74bc56679e43286ab922ac053753268f34466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "058bec9b9909972566d21f0e8bd74bc56679e43286ab922ac053753268f34466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "058bec9b9909972566d21f0e8bd74bc56679e43286ab922ac053753268f34466", kill_on_drop: false }`
[INFO] [stdout] 058bec9b9909972566d21f0e8bd74bc56679e43286ab922ac053753268f34466
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fff0bd5c50bbbb0a50a4cb292880289d3953d7c4a95d8eb7e46950a08410f3b8
[INFO] running `Command { std: "docker" "start" "-a" "fff0bd5c50bbbb0a50a4cb292880289d3953d7c4a95d8eb7e46950a08410f3b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.29
[INFO] [stderr]     Checking dunce v1.0.0
[INFO] [stderr]     Checking wild v2.0.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]    Compiling backtrace v0.3.30
[INFO] [stderr]     Checking uucore v0.0.4
[INFO] [stderr]    Compiling uucore_procs v0.0.4
[INFO] [stderr]     Checking uu_wc v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.50s
[INFO] running `Command { std: "docker" "inspect" "fff0bd5c50bbbb0a50a4cb292880289d3953d7c4a95d8eb7e46950a08410f3b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fff0bd5c50bbbb0a50a4cb292880289d3953d7c4a95d8eb7e46950a08410f3b8", kill_on_drop: false }`
[INFO] [stdout] fff0bd5c50bbbb0a50a4cb292880289d3953d7c4a95d8eb7e46950a08410f3b8