[INFO] cloning repository https://github.com/alexanderbez/rust-merge-sort
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alexanderbez/rust-merge-sort" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexanderbez%2Frust-merge-sort", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexanderbez%2Frust-merge-sort'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 62b3042c972cc5b472e91df147a6991c7f93c138
[INFO] testing alexanderbez/rust-merge-sort against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexanderbez%2Frust-merge-sort" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alexanderbez/rust-merge-sort on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alexanderbez/rust-merge-sort
[INFO] finished tweaking git repo https://github.com/alexanderbez/rust-merge-sort
[INFO] tweaked toml for git repo https://github.com/alexanderbez/rust-merge-sort written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/alexanderbez/rust-merge-sort already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ffb7aa59b773cc97b60d3edf37cefec8dff59bfd7287882f9dc3e2027253c36f
[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" "ffb7aa59b773cc97b60d3edf37cefec8dff59bfd7287882f9dc3e2027253c36f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ffb7aa59b773cc97b60d3edf37cefec8dff59bfd7287882f9dc3e2027253c36f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffb7aa59b773cc97b60d3edf37cefec8dff59bfd7287882f9dc3e2027253c36f", kill_on_drop: false }`
[INFO] [stdout] ffb7aa59b773cc97b60d3edf37cefec8dff59bfd7287882f9dc3e2027253c36f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b53bdf6397ed2c0a8068c7adf12ea237abcf4578f917a685b4838f26cafd3dc
[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" "1b53bdf6397ed2c0a8068c7adf12ea237abcf4578f917a685b4838f26cafd3dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-merge-sort v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "1b53bdf6397ed2c0a8068c7adf12ea237abcf4578f917a685b4838f26cafd3dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b53bdf6397ed2c0a8068c7adf12ea237abcf4578f917a685b4838f26cafd3dc", kill_on_drop: false }`
[INFO] [stdout] 1b53bdf6397ed2c0a8068c7adf12ea237abcf4578f917a685b4838f26cafd3dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 55795878c9e655658aade361d23bb8f06b6626f949cf07116ace0154c0afe3fe
[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" "55795878c9e655658aade361d23bb8f06b6626f949cf07116ace0154c0afe3fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-merge-sort v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "55795878c9e655658aade361d23bb8f06b6626f949cf07116ace0154c0afe3fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55795878c9e655658aade361d23bb8f06b6626f949cf07116ace0154c0afe3fe", kill_on_drop: false }`
[INFO] [stdout] 55795878c9e655658aade361d23bb8f06b6626f949cf07116ace0154c0afe3fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8a1dbc4188ca3abb9f7adfa183439b9b2b5f563fd701ec4b21e94f9a5edc6f41
[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" "8a1dbc4188ca3abb9f7adfa183439b9b2b5f563fd701ec4b21e94f9a5edc6f41", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_merge_sort-93a9f9bf1f78d1ea)
[INFO] [stdout] running 19 tests
[INFO] [stdout] test tests::merge_copy_selection ... ok
[INFO] [stdout] test tests::merge_basic ... ok
[INFO] [stdout] test tests::merge_duplicates ... ok
[INFO] [stdout] test tests::merge_empty ... ok
[INFO] [stdout] test tests::merge_split_basic ... ok
[INFO] [stdout] test tests::merge_split_duplicates ... ok
[INFO] [stdout] test tests::merge_split_empty ... ok
[INFO] [stdout] test tests::merge_split_selection ... ok
[INFO] [stdout] test tests::sort_basic ... ok
[INFO] [stdout] test tests::merge_copy_basic ... ok
[INFO] [stdout] test tests::merge_copy_nothing ... ok
[INFO] [stdout] test tests::sort_duplicates ... ok
[INFO] [stdout] test tests::sort_emtpy ... ok
[INFO] [stdout] test tests::sort_negative ... ok
[INFO] [stdout] test tests::merge_copy_out_of_bound - should panic ... ok
[INFO] [stdout] test tests::merge_out_of_bound - should panic ... ok
[INFO] [stderr]    Doc-tests rust-merge-sort
[INFO] [stdout] test tests::merge_smaller_output - should panic ... ok
[INFO] [stdout] test tests::merge_split_out_of_bound - should panic ... ok
[INFO] [stdout] test tests::merge_split_smaller_out - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8a1dbc4188ca3abb9f7adfa183439b9b2b5f563fd701ec4b21e94f9a5edc6f41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a1dbc4188ca3abb9f7adfa183439b9b2b5f563fd701ec4b21e94f9a5edc6f41", kill_on_drop: false }`
[INFO] [stdout] 8a1dbc4188ca3abb9f7adfa183439b9b2b5f563fd701ec4b21e94f9a5edc6f41