[INFO] fetching crate key-vec 0.2.5...
[INFO] checking key-vec-0.2.5 against try#894d32a5432c6a6461bb2aac7c3d5f2e87dce83f for pr-77015
[INFO] extracting crate key-vec 0.2.5 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate key-vec 0.2.5 on toolchain 894d32a5432c6a6461bb2aac7c3d5f2e87dce83f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate key-vec 0.2.5
[INFO] finished tweaking crates.io crate key-vec 0.2.5
[INFO] tweaked toml for crates.io crate key-vec 0.2.5 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate key-vec 0.2.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "metadata" "--no-deps" "--format-version=1", 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] 5323f56fce11d767c80f22e9d4ef03385426de4d10a381afb059866164011ae3
[INFO] running `Command { std: "docker" "start" "-a" "5323f56fce11d767c80f22e9d4ef03385426de4d10a381afb059866164011ae3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5323f56fce11d767c80f22e9d4ef03385426de4d10a381afb059866164011ae3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5323f56fce11d767c80f22e9d4ef03385426de4d10a381afb059866164011ae3", kill_on_drop: false }`
[INFO] [stdout] 5323f56fce11d767c80f22e9d4ef03385426de4d10a381afb059866164011ae3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2e6a8def24034a6632e82f8c9e86f8b9a114f2c92f0da5ec5c3e3db0de649a9
[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" "e2e6a8def24034a6632e82f8c9e86f8b9a114f2c92f0da5ec5c3e3db0de649a9", kill_on_drop: false }`
[INFO] [stderr]     Checking key-vec v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "e2e6a8def24034a6632e82f8c9e86f8b9a114f2c92f0da5ec5c3e3db0de649a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2e6a8def24034a6632e82f8c9e86f8b9a114f2c92f0da5ec5c3e3db0de649a9", kill_on_drop: false }`
[INFO] [stdout] e2e6a8def24034a6632e82f8c9e86f8b9a114f2c92f0da5ec5c3e3db0de649a9