[INFO] updating cached repository https://github.com/snf/rust_crashes
[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] 5b03311b563807ca9011ce428b84263cca4e3f9b
[INFO] checking snf/rust_crashes against master#e22b61bff0bdd08be7665607cb7be3748c8a35d2 for pr-74627
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnf%2Frust_crashes" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/snf/rust_crashes on toolchain e22b61bff0bdd08be7665607cb7be3748c8a35d2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/snf/rust_crashes
[INFO] finished tweaking git repo https://github.com/snf/rust_crashes
[INFO] tweaked toml for git repo https://github.com/snf/rust_crashes written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/snf/rust_crashes already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b1f1a89e5ed265f6d3d48885b4a8d229c9bc01db9c033bae254a3d75048ea91
[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" "7b1f1a89e5ed265f6d3d48885b4a8d229c9bc01db9c033bae254a3d75048ea91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b1f1a89e5ed265f6d3d48885b4a8d229c9bc01db9c033bae254a3d75048ea91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b1f1a89e5ed265f6d3d48885b4a8d229c9bc01db9c033bae254a3d75048ea91", kill_on_drop: false }`
[INFO] [stdout] 7b1f1a89e5ed265f6d3d48885b4a8d229c9bc01db9c033bae254a3d75048ea91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 341b02da67a21766c1a9041342b65206fd908422a26d555df85b744de1211c2c
[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" "341b02da67a21766c1a9041342b65206fd908422a26d555df85b744de1211c2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.40
[INFO] [stderr]    Compiling rust_crash v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: src/helpers/call_rust.cpp: In function 'int main(int, char**)':
[INFO] [stderr] warning: src/helpers/call_rust.cpp:7:14: warning: unused parameter 'argc' [-Wunused-parameter]
[INFO] [stderr] warning:     7 | int main(int argc, char *argv[]) {
[INFO] [stderr] warning:       |          ~~~~^~~~
[INFO] [stderr] warning: src/helpers/call_rust.cpp:7:26: warning: unused parameter 'argv' [-Wunused-parameter]
[INFO] [stderr] warning:     7 | int main(int argc, char *argv[]) {
[INFO] [stderr] warning:       |                    ~~~~~~^~~~~~
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.65s
[INFO] running `Command { std: "docker" "inspect" "341b02da67a21766c1a9041342b65206fd908422a26d555df85b744de1211c2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "341b02da67a21766c1a9041342b65206fd908422a26d555df85b744de1211c2c", kill_on_drop: false }`
[INFO] [stdout] 341b02da67a21766c1a9041342b65206fd908422a26d555df85b744de1211c2c