[INFO] cloning repository https://github.com/hone/hello_helix
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hone/hello_helix" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhone%2Fhello_helix", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhone%2Fhello_helix'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a67fc0d3c8bcaccc08db3dd0c25d4019f09e3f18
[INFO] checking hone/hello_helix against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhone%2Fhello_helix" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hone/hello_helix on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hone/hello_helix
[INFO] finished tweaking git repo https://github.com/hone/hello_helix
[INFO] tweaked toml for git repo https://github.com/hone/hello_helix written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/hone/hello_helix already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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] b97a01c49058effba90515b27d9804e73f52bfb4f6a8e46288b23350ef05d14d
[INFO] running `Command { std: "docker" "start" "-a" "b97a01c49058effba90515b27d9804e73f52bfb4f6a8e46288b23350ef05d14d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b97a01c49058effba90515b27d9804e73f52bfb4f6a8e46288b23350ef05d14d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b97a01c49058effba90515b27d9804e73f52bfb4f6a8e46288b23350ef05d14d", kill_on_drop: false }`
[INFO] [stdout] b97a01c49058effba90515b27d9804e73f52bfb4f6a8e46288b23350ef05d14d
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0295e3146fbeb31972c774d84086c27d29c75feaee28f0b2fe4ba65f0d1b8bf7
[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" "0295e3146fbeb31972c774d84086c27d29c75feaee28f0b2fe4ba65f0d1b8bf7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libcruby-sys v0.6.4
[INFO] [stderr]     Checking cslice v0.3.0
[INFO] [stderr]     Checking cstr-macro v0.1.0
[INFO] [stderr]     Checking helix v0.6.4
[INFO] [stderr]     Checking hello_helix v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.49s
[INFO] running `Command { std: "docker" "inspect" "0295e3146fbeb31972c774d84086c27d29c75feaee28f0b2fe4ba65f0d1b8bf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0295e3146fbeb31972c774d84086c27d29c75feaee28f0b2fe4ba65f0d1b8bf7", kill_on_drop: false }`
[INFO] [stdout] 0295e3146fbeb31972c774d84086c27d29c75feaee28f0b2fe4ba65f0d1b8bf7