[INFO] cloning repository https://github.com/MarioCadenas/backwards-string
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MarioCadenas/backwards-string" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarioCadenas%2Fbackwards-string", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarioCadenas%2Fbackwards-string'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2be0e9bd0664bb3c2e8873ee0af3481ff2dea8c9
[INFO] checking MarioCadenas/backwards-string against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarioCadenas%2Fbackwards-string" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MarioCadenas/backwards-string on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MarioCadenas/backwards-string
[INFO] finished tweaking git repo https://github.com/MarioCadenas/backwards-string
[INFO] tweaked toml for git repo https://github.com/MarioCadenas/backwards-string written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/MarioCadenas/backwards-string already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49065d3c0d286cb3c8ee38b6eb94e9702dd274c06a3e7cf988cb4598814d9443
[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" "49065d3c0d286cb3c8ee38b6eb94e9702dd274c06a3e7cf988cb4598814d9443", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49065d3c0d286cb3c8ee38b6eb94e9702dd274c06a3e7cf988cb4598814d9443", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49065d3c0d286cb3c8ee38b6eb94e9702dd274c06a3e7cf988cb4598814d9443", kill_on_drop: false }`
[INFO] [stdout] 49065d3c0d286cb3c8ee38b6eb94e9702dd274c06a3e7cf988cb4598814d9443
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ac4086c2c8c2003553ecac3031f0d25eab70720227f12ae488b9d39ea59a42a
[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" "0ac4086c2c8c2003553ecac3031f0d25eab70720227f12ae488b9d39ea59a42a", kill_on_drop: false }`
[INFO] [stderr]     Checking backwards-string v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "0ac4086c2c8c2003553ecac3031f0d25eab70720227f12ae488b9d39ea59a42a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ac4086c2c8c2003553ecac3031f0d25eab70720227f12ae488b9d39ea59a42a", kill_on_drop: false }`
[INFO] [stdout] 0ac4086c2c8c2003553ecac3031f0d25eab70720227f12ae488b9d39ea59a42a