[INFO] cloning 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" "clone" "--bare" "https://github.com/jakubtuchol/rust_sorting_experiments" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakubtuchol%2Frust_sorting_experiments", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakubtuchol%2Frust_sorting_experiments'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7404b8a99bf6de1cc8d7bd4d4afacfcc3eeeb418
[INFO] testing jakubtuchol/rust_sorting_experiments against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakubtuchol%2Frust_sorting_experiments" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jakubtuchol/rust_sorting_experiments on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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-5/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" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-5/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[INFO] the lockfile is outdated, regenerating it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" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4897c5dc6f7b884140ea35093fdb109e1eb30b1a49e064bd702b92f79d63daec
[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" "4897c5dc6f7b884140ea35093fdb109e1eb30b1a49e064bd702b92f79d63daec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4897c5dc6f7b884140ea35093fdb109e1eb30b1a49e064bd702b92f79d63daec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4897c5dc6f7b884140ea35093fdb109e1eb30b1a49e064bd702b92f79d63daec", kill_on_drop: false }`
[INFO] [stdout] 4897c5dc6f7b884140ea35093fdb109e1eb30b1a49e064bd702b92f79d63daec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11492e02d9e81adcb2bf46f97d1fa9b7dc40ee0d2550911d2e40f26790f744e3
[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" "11492e02d9e81adcb2bf46f97d1fa9b7dc40ee0d2550911d2e40f26790f744e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling sorting v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "11492e02d9e81adcb2bf46f97d1fa9b7dc40ee0d2550911d2e40f26790f744e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11492e02d9e81adcb2bf46f97d1fa9b7dc40ee0d2550911d2e40f26790f744e3", kill_on_drop: false }`
[INFO] [stdout] 11492e02d9e81adcb2bf46f97d1fa9b7dc40ee0d2550911d2e40f26790f744e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b87d8d07687a8f41706c38aaee22cdf583b160cad524213dddf9a531e7c6c0ab
[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" "b87d8d07687a8f41706c38aaee22cdf583b160cad524213dddf9a531e7c6c0ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling sorting v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "b87d8d07687a8f41706c38aaee22cdf583b160cad524213dddf9a531e7c6c0ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b87d8d07687a8f41706c38aaee22cdf583b160cad524213dddf9a531e7c6c0ab", kill_on_drop: false }`
[INFO] [stdout] b87d8d07687a8f41706c38aaee22cdf583b160cad524213dddf9a531e7c6c0ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 08ee3ea4baee0481caca1e8a950df46dccd72c901a4021548edb0729b07559b2
[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" "08ee3ea4baee0481caca1e8a950df46dccd72c901a4021548edb0729b07559b2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sorting-e1269607f65570a6
[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 heap::test_random_nonuniform_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_sort_small_vector ... ok
[INFO] [stdout] test merge::test_randomly_generated_vector ... ok
[INFO] [stdout] test quick::test_randomly_generated_vector ... ok
[INFO] [stdout] test merge::test_random_nonuniform_vector ... ok
[INFO] [stdout] test bubble::test_randomly_generated_vector ... ok
[INFO] [stdout] test rand_range::test_ensure_nonuniform_range_not_equal ... ok
[INFO] [stdout] test quick::test_random_nonuniform_vector ... ok
[INFO] [stdout] test insertion::test_randomly_generated_vector ... ok
[INFO] [stdout] test insertion::test_random_nonuniform_vector ... ok
[INFO] [stdout] test bubble::test_random_nonuniform_vector ... ok
[INFO] [stdout] test rand_range::test_check_vector_sizes ... ok
[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; finished in 1.65s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sorting
[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" "08ee3ea4baee0481caca1e8a950df46dccd72c901a4021548edb0729b07559b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08ee3ea4baee0481caca1e8a950df46dccd72c901a4021548edb0729b07559b2", kill_on_drop: false }`
[INFO] [stdout] 08ee3ea4baee0481caca1e8a950df46dccd72c901a4021548edb0729b07559b2