[INFO] cloning repository https://github.com/mocomaminecraft/RuinOS
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mocomaminecraft/RuinOS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmocomaminecraft%2FRuinOS"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmocomaminecraft%2FRuinOS'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2528680b999e7274020a6964b3f9462a1f42b4ff
[INFO] checking mocomaminecraft/RuinOS against master#450abe80f193ccefbfcd48214d70520f2d507f0e for pr-73084
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmocomaminecraft%2FRuinOS" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mocomaminecraft/RuinOS on toolchain 450abe80f193ccefbfcd48214d70520f2d507f0e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+450abe80f193ccefbfcd48214d70520f2d507f0e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mocomaminecraft/RuinOS
[INFO] finished tweaking git repo https://github.com/mocomaminecraft/RuinOS
[INFO] tweaked toml for git repo https://github.com/mocomaminecraft/RuinOS written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/mocomaminecraft/RuinOS already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+450abe80f193ccefbfcd48214d70520f2d507f0e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "/opt/rustwide/cargo-home/bin/cargo" "+450abe80f193ccefbfcd48214d70520f2d507f0e" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b4c05888ebd1553b29f9c9307f558c5ece007fa158b637a1606c9eade2bf4388
[INFO] running `"docker" "start" "-a" "b4c05888ebd1553b29f9c9307f558c5ece007fa158b637a1606c9eade2bf4388"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling bootloader v0.9.4
[INFO] [stderr] error[E0463]: can't find crate for `core`
[INFO] [stderr]   |
[INFO] [stderr]   = note: the `target_RuinOS-4755325935976484594` target may not be installed
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: could not compile `bootloader`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b4c05888ebd1553b29f9c9307f558c5ece007fa158b637a1606c9eade2bf4388"`
[INFO] running `"docker" "rm" "-f" "b4c05888ebd1553b29f9c9307f558c5ece007fa158b637a1606c9eade2bf4388"`
[INFO] [stdout] b4c05888ebd1553b29f9c9307f558c5ece007fa158b637a1606c9eade2bf4388