[INFO] cloning repository https://github.com/dsbarnes/twele-days-of-christmas
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dsbarnes/twele-days-of-christmas" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdsbarnes%2Ftwele-days-of-christmas", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdsbarnes%2Ftwele-days-of-christmas'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1d42cf73cc5f1ff414bc8fec360ffd72ab723c63
[INFO] checking dsbarnes/twele-days-of-christmas against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdsbarnes%2Ftwele-days-of-christmas" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dsbarnes/twele-days-of-christmas on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dsbarnes/twele-days-of-christmas
[INFO] finished tweaking git repo https://github.com/dsbarnes/twele-days-of-christmas
[INFO] tweaked toml for git repo https://github.com/dsbarnes/twele-days-of-christmas written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/dsbarnes/twele-days-of-christmas already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 765cc49098b8d3a49df1893d83fc5a56304e39cc75b8853c3a82cb43457fdcb8
[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" "765cc49098b8d3a49df1893d83fc5a56304e39cc75b8853c3a82cb43457fdcb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "765cc49098b8d3a49df1893d83fc5a56304e39cc75b8853c3a82cb43457fdcb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "765cc49098b8d3a49df1893d83fc5a56304e39cc75b8853c3a82cb43457fdcb8", kill_on_drop: false }`
[INFO] [stdout] 765cc49098b8d3a49df1893d83fc5a56304e39cc75b8853c3a82cb43457fdcb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1f1fc5a23baac30b5858d4f6692142ff690e3d3da0d94c8c915eabe3ea6b2f9
[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" "d1f1fc5a23baac30b5858d4f6692142ff690e3d3da0d94c8c915eabe3ea6b2f9", kill_on_drop: false }`
[INFO] [stderr]     Checking twelve-days-of-chistmas v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "d1f1fc5a23baac30b5858d4f6692142ff690e3d3da0d94c8c915eabe3ea6b2f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1f1fc5a23baac30b5858d4f6692142ff690e3d3da0d94c8c915eabe3ea6b2f9", kill_on_drop: false }`
[INFO] [stdout] d1f1fc5a23baac30b5858d4f6692142ff690e3d3da0d94c8c915eabe3ea6b2f9