[INFO] cloning repository https://github.com/FuGangqiang/RustPractices
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FuGangqiang/RustPractices" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuGangqiang%2FRustPractices", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuGangqiang%2FRustPractices'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1070eb7e8aae9e6b1169a56192248a14086a5bdb
[INFO] testing FuGangqiang/RustPractices against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuGangqiang%2FRustPractices" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FuGangqiang/RustPractices on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FuGangqiang/RustPractices
[INFO] finished tweaking git repo https://github.com/FuGangqiang/RustPractices
[INFO] tweaked toml for git repo https://github.com/FuGangqiang/RustPractices written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/FuGangqiang/RustPractices already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de639e042909c214ec7beba7bf07b493de71b3122aded0f0ee2445adf90a2bb5
[INFO] running `Command { std: "docker" "start" "-a" "de639e042909c214ec7beba7bf07b493de71b3122aded0f0ee2445adf90a2bb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de639e042909c214ec7beba7bf07b493de71b3122aded0f0ee2445adf90a2bb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de639e042909c214ec7beba7bf07b493de71b3122aded0f0ee2445adf90a2bb5", kill_on_drop: false }`
[INFO] [stdout] de639e042909c214ec7beba7bf07b493de71b3122aded0f0ee2445adf90a2bb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01430502b9a349a3ab9c04d02a2177f8adfdb3e5b881878ac88904564dd28d1d
[INFO] running `Command { std: "docker" "start" "-a" "01430502b9a349a3ab9c04d02a2177f8adfdb3e5b881878ac88904564dd28d1d", kill_on_drop: false }`
[INFO] [stderr]    Compiling practices v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "01430502b9a349a3ab9c04d02a2177f8adfdb3e5b881878ac88904564dd28d1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01430502b9a349a3ab9c04d02a2177f8adfdb3e5b881878ac88904564dd28d1d", kill_on_drop: false }`
[INFO] [stdout] 01430502b9a349a3ab9c04d02a2177f8adfdb3e5b881878ac88904564dd28d1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a9005799e9407f225f4979adfad6129c514276de0950ab259509ca144fa902a
[INFO] running `Command { std: "docker" "start" "-a" "1a9005799e9407f225f4979adfad6129c514276de0950ab259509ca144fa902a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling practices v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.27s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/practices-50c43deaf5a5d19a)
[INFO] running `Command { std: "docker" "inspect" "1a9005799e9407f225f4979adfad6129c514276de0950ab259509ca144fa902a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a9005799e9407f225f4979adfad6129c514276de0950ab259509ca144fa902a", kill_on_drop: false }`
[INFO] [stdout] 1a9005799e9407f225f4979adfad6129c514276de0950ab259509ca144fa902a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 19b4f50d4ad86a29d9523334e3650d858f505873e394c34e6f5efbf2d032a4ce
[INFO] running `Command { std: "docker" "start" "-a" "19b4f50d4ad86a29d9523334e3650d858f505873e394c34e6f5efbf2d032a4ce", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/practices-50c43deaf5a5d19a)
[INFO] [stdout] 
[INFO] [stdout] running 50 tests
[INFO] [stdout] test clrs::max_subarray::tests::test_find_max_subarray_iterative ... ok
[INFO] [stdout] test clrs::max_subarray::tests::test_find_max_subarray_recursive ... ok
[INFO] [stdout] test clrs::two_sum::tests::test_two_sum ... ok
[INFO] [stdout] test sorting::bubble_sort::tests::test_one_element ... ok
[INFO] [stdout] test sorting::bubble_sort::tests::test_empty ... ok
[INFO] [stdout] test sorting::bubble_sort::tests::test_sort ... ok
[INFO] [stdout] test sorting::bucket_sort::tests::test_empty ... ok
[INFO] [stdout] test sorting::bucket_sort::tests::test_one_element ... ok
[INFO] [stdout] test sorting::bucket_sort::tests::test_sort ... ok
[INFO] [stdout] test sorting::counting_sort::tests::test_empty ... ok
[INFO] [stdout] test sorting::counting_sort::tests::test_one_element ... ok
[INFO] [stdout] test sorting::counting_sort::tests::test_sort ... ok
[INFO] [stdout] test sorting::heap_sort::tests::test_empty ... ok
[INFO] [stdout] test sorting::heap_sort::tests::test_one_element ... ok
[INFO] [stdout] test sorting::heap_sort::tests::test_sort ... ok
[INFO] [stdout] test sorting::insert_sort::tests::test_empty ... ok
[INFO] [stdout] test sorting::insert_sort::tests::test_one_element ... ok
[INFO] [stdout] test sorting::insert_sort::tests::test_sort ... ok
[INFO] [stdout] test sorting::merge_sort::tests::test_empty ... ok
[INFO] [stdout] test sorting::merge_sort::tests::test_even_sort ... ok
[INFO] [stdout] test sorting::merge_sort::tests::test_odd_sort ... ok
[INFO] [stdout] test sorting::merge_sort::tests::test_one_element ... ok
[INFO] [stdout] test sorting::quick_sort::tests::test_empty ... ok
[INFO] [stdout] test sorting::quick_sort::tests::test_one_element ... ok
[INFO] [stdout] test sorting::quick_sort::tests::test_sort ... ok
[INFO] [stdout] test sorting::radix_sort::tests::test_empty ... ok
[INFO] [stdout] test sorting::radix_sort::tests::test_one_element ... ok
[INFO] [stdout] test sorting::selection_sort::tests::test_empty ... ok
[INFO] [stdout] test sorting::radix_sort::tests::test_sort ... ok
[INFO] [stdout] test sorting::selection_sort::tests::test_one_element ... ok
[INFO] [stdout] test sorting::selection_sort::tests::test_sort ... ok
[INFO] [stdout] test sorting::shell_sort::tests::test_empty ... ok
[INFO] [stdout] test sorting::shell_sort::tests::test_one_element ... ok
[INFO] [stdout] test sorting::shell_sort::tests::test_sort ... ok
[INFO] [stdout] test structure::deque::test::into_iter ... ok
[INFO] [stdout] test structure::deque::test::basics ... ok
[INFO] [stdout] test structure::list::test::basics ... ok
[INFO] [stdout] test structure::deque::test::peek ... ok
[INFO] [stdout] test structure::max_heap::tests::test_new ... ok
[INFO] [stdout] test structure::list::test::iter ... ok
[INFO] [stdout] test structure::max_heap::tests::test_push_pop ... ok
[INFO] [stdout] test structure::min_heap::tests::test_new ... ok
[INFO] [stdout] test structure::min_heap::tests::test_push_pop ... ok
[INFO] [stdout] test structure::unsafe_deque::test::into_iter ... ok
[INFO] [stdout] test structure::unsafe_deque::test::basics ... ok
[INFO] [stdout] test structure::unsafe_deque::test::peek ... ok
[INFO] [stdout] test structure::unsafe_red_black_tree::tests::test_get ... ok
[INFO] [stdout] test structure::unsafe_stack::test::basics ... ok
[INFO] [stdout] test structure::unsafe_red_black_tree::tests::test_inorder_tree_walk_1 ... ok
[INFO] [stdout] test structure::unsafe_red_black_tree::tests::test_inorder_tree_walk_2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 50 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests practices
[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" "19b4f50d4ad86a29d9523334e3650d858f505873e394c34e6f5efbf2d032a4ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19b4f50d4ad86a29d9523334e3650d858f505873e394c34e6f5efbf2d032a4ce", kill_on_drop: false }`
[INFO] [stdout] 19b4f50d4ad86a29d9523334e3650d858f505873e394c34e6f5efbf2d032a4ce