[INFO] cloning repository https://github.com/mmheroes/mmheroes-core-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mmheroes/mmheroes-core-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmheroes%2Fmmheroes-core-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmheroes%2Fmmheroes-core-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d0f31254f9862c966667990acb8aa0305940c019
[INFO] checking mmheroes/mmheroes-core-rs against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmheroes%2Fmmheroes-core-rs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mmheroes/mmheroes-core-rs 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/mmheroes/mmheroes-core-rs
[INFO] finished tweaking git repo https://github.com/mmheroes/mmheroes-core-rs
[INFO] tweaked toml for git repo https://github.com/mmheroes/mmheroes-core-rs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mmheroes/mmheroes-core-rs 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] [stdout] 5a4a9a23fbd159850354650fbd72720aa0e0b05d64b2334019e308f4b902a3bc
[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" "5a4a9a23fbd159850354650fbd72720aa0e0b05d64b2334019e308f4b902a3bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a4a9a23fbd159850354650fbd72720aa0e0b05d64b2334019e308f4b902a3bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a4a9a23fbd159850354650fbd72720aa0e0b05d64b2334019e308f4b902a3bc", kill_on_drop: false }`
[INFO] [stdout] 5a4a9a23fbd159850354650fbd72720aa0e0b05d64b2334019e308f4b902a3bc
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b598e4445a15a53775e256974b6d1bbf5e8ea9a5087aa3ae367f0b339b55dae9
[INFO] running `Command { std: "docker" "start" "-a" "b598e4445a15a53775e256974b6d1bbf5e8ea9a5087aa3ae367f0b339b55dae9", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling mmheroes-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr] error: failed to run custom build command for `mmheroes-core v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/mmheroes-core-f690c27449b95a91/build-script-build` (exit code: 1)
[INFO] [stderr] --- stdout
[INFO] [stderr] cargo:rerun-if-changed=build.rs
[INFO] [stderr] cargo:rerun-if-changed=Cargo.toml
[INFO] [stderr] cargo:rerun-if-changed=iOS/Cargo.toml
[INFO] [stderr] 
[INFO] [stderr] --- stderr
[INFO] [stderr] Error: IoError(Os { code: 30, kind: Other, message: "Read-only file system" })
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b598e4445a15a53775e256974b6d1bbf5e8ea9a5087aa3ae367f0b339b55dae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b598e4445a15a53775e256974b6d1bbf5e8ea9a5087aa3ae367f0b339b55dae9", kill_on_drop: false }`
[INFO] [stdout] b598e4445a15a53775e256974b6d1bbf5e8ea9a5087aa3ae367f0b339b55dae9