[INFO] fetching crate j_hello 0.1.10...
[INFO] checking j_hello-0.1.10 against try#1c5262aa6c045a581fb974488793f09ed51fc498 for pr-78376
[INFO] extracting crate j_hello 0.1.10 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate j_hello 0.1.10 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 j_hello 0.1.10
[INFO] finished tweaking crates.io crate j_hello 0.1.10
[INFO] tweaked toml for crates.io crate j_hello 0.1.10 written to /workspace/builds/worker-6/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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a137ae4e480f91b88bb0dd1b799032be187d3002ac2045afb71894f17679babb
[INFO] running `Command { std: "docker" "start" "-a" "a137ae4e480f91b88bb0dd1b799032be187d3002ac2045afb71894f17679babb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a137ae4e480f91b88bb0dd1b799032be187d3002ac2045afb71894f17679babb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a137ae4e480f91b88bb0dd1b799032be187d3002ac2045afb71894f17679babb", kill_on_drop: false }`
[INFO] [stdout] a137ae4e480f91b88bb0dd1b799032be187d3002ac2045afb71894f17679babb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 71bd3ebc65c566e5d8a146c8854b7131ecc94a7bf524782d7a85276422f9365c
[INFO] running `Command { std: "docker" "start" "-a" "71bd3ebc65c566e5d8a146c8854b7131ecc94a7bf524782d7a85276422f9365c", kill_on_drop: false }`
[INFO] [stderr]     Checking j_hello v0.1.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "71bd3ebc65c566e5d8a146c8854b7131ecc94a7bf524782d7a85276422f9365c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71bd3ebc65c566e5d8a146c8854b7131ecc94a7bf524782d7a85276422f9365c", kill_on_drop: false }`
[INFO] [stdout] 71bd3ebc65c566e5d8a146c8854b7131ecc94a7bf524782d7a85276422f9365c