[INFO] updating cached repository https://github.com/Dracyr/rust_regnbr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7693dc9f9c0913238bfdcb1fb50b79050c516c30
[INFO] checking Dracyr/rust_regnbr against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDracyr%2Frust_regnbr" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files: 100% (7/7)   
Checking out files: 100% (7/7), done.
[INFO] validating manifest of git repo https://github.com/Dracyr/rust_regnbr on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Dracyr/rust_regnbr
[INFO] finished tweaking git repo https://github.com/Dracyr/rust_regnbr
[INFO] tweaked toml for git repo https://github.com/Dracyr/rust_regnbr written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Dracyr/rust_regnbr already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "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] 7b4bccd32caedd7ea8b3292defd0931c3d96413ffc205468fdf9a598b19b822e
[INFO] running `Command { std: "docker" "start" "-a" "7b4bccd32caedd7ea8b3292defd0931c3d96413ffc205468fdf9a598b19b822e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b4bccd32caedd7ea8b3292defd0931c3d96413ffc205468fdf9a598b19b822e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b4bccd32caedd7ea8b3292defd0931c3d96413ffc205468fdf9a598b19b822e", kill_on_drop: false }`
[INFO] [stdout] 7b4bccd32caedd7ea8b3292defd0931c3d96413ffc205468fdf9a598b19b822e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f03e1ae4885bd3c741455231d8bcf829e099cbc0c91f82db4c7202e0439b69dd
[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" "f03e1ae4885bd3c741455231d8bcf829e099cbc0c91f82db4c7202e0439b69dd", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking bit-vec v0.4.3
[INFO] [stderr]     Checking libc v0.2.17
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking bit-set v0.4.0
[INFO] [stderr]     Checking time v0.1.35
[INFO] [stderr]     Checking rust_regnbr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.31s
[INFO] running `Command { std: "docker" "inspect" "f03e1ae4885bd3c741455231d8bcf829e099cbc0c91f82db4c7202e0439b69dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f03e1ae4885bd3c741455231d8bcf829e099cbc0c91f82db4c7202e0439b69dd", kill_on_drop: false }`
[INFO] [stdout] f03e1ae4885bd3c741455231d8bcf829e099cbc0c91f82db4c7202e0439b69dd