[INFO] fetching crate key-vec 0.2.6...
[INFO] checking key-vec-0.2.6 against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] extracting crate key-vec 0.2.6 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate key-vec 0.2.6 on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate key-vec 0.2.6
[INFO] finished tweaking crates.io crate key-vec 0.2.6
[INFO] tweaked toml for crates.io crate key-vec 0.2.6 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate key-vec 0.2.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b7e16f5b4eb8d0249307eeabb817c80de2d80e981425302e2a4d6784f233a22
[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" "0b7e16f5b4eb8d0249307eeabb817c80de2d80e981425302e2a4d6784f233a22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b7e16f5b4eb8d0249307eeabb817c80de2d80e981425302e2a4d6784f233a22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b7e16f5b4eb8d0249307eeabb817c80de2d80e981425302e2a4d6784f233a22", kill_on_drop: false }`
[INFO] [stdout] 0b7e16f5b4eb8d0249307eeabb817c80de2d80e981425302e2a4d6784f233a22
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "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] ca400d554e8eefcdb70e8255407d982437ce930020b81434acce2ffe6d409263
[INFO] running `Command { std: "docker" "start" "-a" "ca400d554e8eefcdb70e8255407d982437ce930020b81434acce2ffe6d409263", kill_on_drop: false }`
[INFO] [stderr]     Checking key-vec v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "ca400d554e8eefcdb70e8255407d982437ce930020b81434acce2ffe6d409263", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca400d554e8eefcdb70e8255407d982437ce930020b81434acce2ffe6d409263", kill_on_drop: false }`
[INFO] [stdout] ca400d554e8eefcdb70e8255407d982437ce930020b81434acce2ffe6d409263