[INFO] updating cached repository https://github.com/jakubtuchol/rust_sorting_experiments
[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] 7404b8a99bf6de1cc8d7bd4d4afacfcc3eeeb418
[INFO] testing jakubtuchol/rust_sorting_experiments against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakubtuchol%2Frust_sorting_experiments" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jakubtuchol/rust_sorting_experiments on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jakubtuchol/rust_sorting_experiments
[INFO] finished tweaking git repo https://github.com/jakubtuchol/rust_sorting_experiments
[INFO] tweaked toml for git repo https://github.com/jakubtuchol/rust_sorting_experiments written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/jakubtuchol/rust_sorting_experiments already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-8/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4eb7d5fa85fe188e76f11a1fbf8d4a5307dab48b198f0abbff96e803b39c5113
[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" "4eb7d5fa85fe188e76f11a1fbf8d4a5307dab48b198f0abbff96e803b39c5113", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4eb7d5fa85fe188e76f11a1fbf8d4a5307dab48b198f0abbff96e803b39c5113", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4eb7d5fa85fe188e76f11a1fbf8d4a5307dab48b198f0abbff96e803b39c5113", kill_on_drop: false }`
[INFO] [stdout] 4eb7d5fa85fe188e76f11a1fbf8d4a5307dab48b198f0abbff96e803b39c5113
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7dc577de20a83aa1eced59304969e857a51efecd3a584680371cad67cab40376
[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" "7dc577de20a83aa1eced59304969e857a51efecd3a584680371cad67cab40376", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling sorting v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.11s
[INFO] running `Command { std: "docker" "inspect" "7dc577de20a83aa1eced59304969e857a51efecd3a584680371cad67cab40376", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dc577de20a83aa1eced59304969e857a51efecd3a584680371cad67cab40376", kill_on_drop: false }`
[INFO] [stdout] 7dc577de20a83aa1eced59304969e857a51efecd3a584680371cad67cab40376
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cea3d1f52d17d1583750a5daab53924dadd3ed97ced197bdd307d6b16c18a9b4
[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" "cea3d1f52d17d1583750a5daab53924dadd3ed97ced197bdd307d6b16c18a9b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling sorting v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "cea3d1f52d17d1583750a5daab53924dadd3ed97ced197bdd307d6b16c18a9b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cea3d1f52d17d1583750a5daab53924dadd3ed97ced197bdd307d6b16c18a9b4", kill_on_drop: false }`
[INFO] [stdout] cea3d1f52d17d1583750a5daab53924dadd3ed97ced197bdd307d6b16c18a9b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", 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] 8241d802239a463c5fda02948254d392c9d03a39954c426cdeff38dcfe6cf2bf
[INFO] running `Command { std: "docker" "start" "-a" "8241d802239a463c5fda02948254d392c9d03a39954c426cdeff38dcfe6cf2bf", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sorting-b24e3d22b18eba95
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test bubble::test_sort_small_vector ... ok
[INFO] [stdout] test heap::test_sort_small_vector ... ok
[INFO] [stdout] test insertion::test_sort_small_vector ... ok
[INFO] [stdout] test merge::test_sort_small_vector ... ok
[INFO] [stdout] test heap::test_randomly_generated_vector ... ok
[INFO] [stdout] test quick::test_random_nonuniform_vector ... ok
[INFO] [stdout] test heap::test_random_nonuniform_vector ... ok
[INFO] [stdout] test quick::test_randomly_generated_vector ... ok
[INFO] [stdout] test quick::test_sort_small_vector ... ok
[INFO] [stdout] test rand_range::test_ensure_nonuniform_range_not_equal ... ok
[INFO] [stdout] test merge::test_random_nonuniform_vector ... ok
[INFO] [stdout] test merge::test_randomly_generated_vector ... ok
[INFO] [stdout] test insertion::test_random_nonuniform_vector ... ok
[INFO] [stdout] test insertion::test_randomly_generated_vector ... ok
[INFO] [stdout] test bubble::test_randomly_generated_vector ... ok
[INFO] [stdout] test bubble::test_random_nonuniform_vector ... ok
[INFO] [stdout] test rand_range::test_check_vector_sizes ... ok
[INFO] [stderr]    Doc-tests sorting
[INFO] [stdout] test rand_range::test_ensure_not_equal ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8241d802239a463c5fda02948254d392c9d03a39954c426cdeff38dcfe6cf2bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8241d802239a463c5fda02948254d392c9d03a39954c426cdeff38dcfe6cf2bf", kill_on_drop: false }`
[INFO] [stdout] 8241d802239a463c5fda02948254d392c9d03a39954c426cdeff38dcfe6cf2bf