[INFO] fetching crate hydrum 0.0.0-placeholder...
[INFO] checking hydrum-0.0.0-placeholder against try#1c5262aa6c045a581fb974488793f09ed51fc498 for pr-78376
[INFO] extracting crate hydrum 0.0.0-placeholder into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate hydrum 0.0.0-placeholder on toolchain 1c5262aa6c045a581fb974488793f09ed51fc498
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hydrum 0.0.0-placeholder
[INFO] finished tweaking crates.io crate hydrum 0.0.0-placeholder
[INFO] tweaked toml for crates.io crate hydrum 0.0.0-placeholder written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c06b43d0457eab11e47af14c1e599fe630ea13d6ecd8d2856f4666742b553fc
[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" "1c06b43d0457eab11e47af14c1e599fe630ea13d6ecd8d2856f4666742b553fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c06b43d0457eab11e47af14c1e599fe630ea13d6ecd8d2856f4666742b553fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c06b43d0457eab11e47af14c1e599fe630ea13d6ecd8d2856f4666742b553fc", kill_on_drop: false }`
[INFO] [stdout] 1c06b43d0457eab11e47af14c1e599fe630ea13d6ecd8d2856f4666742b553fc
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 244cbefd55e6dd8e728dd496f07c38f388a76bd144660c7ff0357c20fc3f51de
[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" "244cbefd55e6dd8e728dd496f07c38f388a76bd144660c7ff0357c20fc3f51de", kill_on_drop: false }`
[INFO] [stderr]     Checking hydrum v0.0.0-placeholder (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "244cbefd55e6dd8e728dd496f07c38f388a76bd144660c7ff0357c20fc3f51de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "244cbefd55e6dd8e728dd496f07c38f388a76bd144660c7ff0357c20fc3f51de", kill_on_drop: false }`
[INFO] [stdout] 244cbefd55e6dd8e728dd496f07c38f388a76bd144660c7ff0357c20fc3f51de