[INFO] updating cached repository https://github.com/howeih/Day-67-Linked-list-mergesort [INFO] running `"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"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] c44a85f48c0d0e32c3b5b194697b2f5d2ee54c75 [INFO] testing howeih/Day-67-Linked-list-mergesort against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoweih%2FDay-67-Linked-list-mergesort" "/workspace/builds/worker-7/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/howeih/Day-67-Linked-list-mergesort on toolchain 41997647ba6a77908f6ef64401414feb00bccf16 [INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/howeih/Day-67-Linked-list-mergesort [INFO] finished tweaking git repo https://github.com/howeih/Day-67-Linked-list-mergesort [INFO] tweaked toml for git repo https://github.com/howeih/Day-67-Linked-list-mergesort written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/howeih/Day-67-Linked-list-mergesort already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 2c1f85be5bcc7763ecf71f7f5232760aca89afe4faea837ad958e242884bd029 [INFO] running `"docker" "start" "-a" "2c1f85be5bcc7763ecf71f7f5232760aca89afe4faea837ad958e242884bd029"` [INFO] [stderr] Compiling linked_list_mergesort v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.87s [INFO] running `"docker" "inspect" "2c1f85be5bcc7763ecf71f7f5232760aca89afe4faea837ad958e242884bd029"` [INFO] running `"docker" "rm" "-f" "2c1f85be5bcc7763ecf71f7f5232760aca89afe4faea837ad958e242884bd029"` [INFO] [stdout] 2c1f85be5bcc7763ecf71f7f5232760aca89afe4faea837ad958e242884bd029 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] febec610c70180d4c7d5ed2f04540a909b6782ca66f4d2cd4dad2e25b566a042 [INFO] running `"docker" "start" "-a" "febec610c70180d4c7d5ed2f04540a909b6782ca66f4d2cd4dad2e25b566a042"` [INFO] [stderr] Compiling linked_list_mergesort v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.83s [INFO] running `"docker" "inspect" "febec610c70180d4c7d5ed2f04540a909b6782ca66f4d2cd4dad2e25b566a042"` [INFO] running `"docker" "rm" "-f" "febec610c70180d4c7d5ed2f04540a909b6782ca66f4d2cd4dad2e25b566a042"` [INFO] [stdout] febec610c70180d4c7d5ed2f04540a909b6782ca66f4d2cd4dad2e25b566a042 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 1be2008798b9d12ee5db88b2680fc3dd4cf9376f956bf88237c2e34136187aad [INFO] running `"docker" "start" "-a" "1be2008798b9d12ee5db88b2680fc3dd4cf9376f956bf88237c2e34136187aad"` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/linked_list_mergesort-a2fe9a482b4327b7 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "1be2008798b9d12ee5db88b2680fc3dd4cf9376f956bf88237c2e34136187aad"` [INFO] running `"docker" "rm" "-f" "1be2008798b9d12ee5db88b2680fc3dd4cf9376f956bf88237c2e34136187aad"` [INFO] [stdout] 1be2008798b9d12ee5db88b2680fc3dd4cf9376f956bf88237c2e34136187aad