[INFO] fetching crate wrappinghashset 0.4.1...
[INFO] checking wrappinghashset-0.4.1 against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] extracting crate wrappinghashset 0.4.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate wrappinghashset 0.4.1 on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wrappinghashset 0.4.1
[INFO] finished tweaking crates.io crate wrappinghashset 0.4.1
[INFO] tweaked toml for crates.io crate wrappinghashset 0.4.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate wrappinghashset 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0138827b137e1a0a89f58441c49ae94965eefda2d85e163bcb7a2ee1cee607a8
[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" "0138827b137e1a0a89f58441c49ae94965eefda2d85e163bcb7a2ee1cee607a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0138827b137e1a0a89f58441c49ae94965eefda2d85e163bcb7a2ee1cee607a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0138827b137e1a0a89f58441c49ae94965eefda2d85e163bcb7a2ee1cee607a8", kill_on_drop: false }`
[INFO] [stdout] 0138827b137e1a0a89f58441c49ae94965eefda2d85e163bcb7a2ee1cee607a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc873318478dd3c667ba9a10ea1c84d916334d4d8953e6d4aa9aa02e047776e7
[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" "bc873318478dd3c667ba9a10ea1c84d916334d4d8953e6d4aa9aa02e047776e7", kill_on_drop: false }`
[INFO] [stderr]     Checking wrappinghashset v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "bc873318478dd3c667ba9a10ea1c84d916334d4d8953e6d4aa9aa02e047776e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc873318478dd3c667ba9a10ea1c84d916334d4d8953e6d4aa9aa02e047776e7", kill_on_drop: false }`
[INFO] [stdout] bc873318478dd3c667ba9a10ea1c84d916334d4d8953e6d4aa9aa02e047776e7