[INFO] updating cached repository https://github.com/FuGangqiang/RustPractices
[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] 1070eb7e8aae9e6b1169a56192248a14086a5bdb
[INFO] testing FuGangqiang/RustPractices against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuGangqiang%2FRustPractices" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FuGangqiang/RustPractices 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/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-4/source/Cargo.toml
[INFO] crate git repo https://github.com/FuGangqiang/RustPractices 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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] cc0263c9b05fd0d2992c710334509de891abcaebd969fc3f6620649ad0b6cda4
[INFO] running `"docker" "start" "-a" "cc0263c9b05fd0d2992c710334509de891abcaebd969fc3f6620649ad0b6cda4"`
[INFO] [stderr]    Compiling practices v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.74s
[INFO] running `"docker" "inspect" "cc0263c9b05fd0d2992c710334509de891abcaebd969fc3f6620649ad0b6cda4"`
[INFO] running `"docker" "rm" "-f" "cc0263c9b05fd0d2992c710334509de891abcaebd969fc3f6620649ad0b6cda4"`
[INFO] [stdout] cc0263c9b05fd0d2992c710334509de891abcaebd969fc3f6620649ad0b6cda4
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] eaf26ac6093711b9b105eec3d0967499738d76fe7b8f72b11e5d50e4d61438e0
[INFO] running `"docker" "start" "-a" "eaf26ac6093711b9b105eec3d0967499738d76fe7b8f72b11e5d50e4d61438e0"`
[INFO] [stderr]    Compiling practices v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.19s
[INFO] running `"docker" "inspect" "eaf26ac6093711b9b105eec3d0967499738d76fe7b8f72b11e5d50e4d61438e0"`
[INFO] running `"docker" "rm" "-f" "eaf26ac6093711b9b105eec3d0967499738d76fe7b8f72b11e5d50e4d61438e0"`
[INFO] [stdout] eaf26ac6093711b9b105eec3d0967499738d76fe7b8f72b11e5d50e4d61438e0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] 884f01e49bbbcba681a69a2019ea821b103bb8b092fa8260f693851b1728fff5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "884f01e49bbbcba681a69a2019ea821b103bb8b092fa8260f693851b1728fff5"`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/practices-53ccda011ba34156
[INFO] [stdout] 
[INFO] [stdout] running 50 tests
[INFO] [stdout] test sorting::bubble_sort::tests::test_empty ... ok
[INFO] [stdout] test clrs::max_subarray::tests::test_find_max_subarray_iterative ... ok
[INFO] [stdout] test sorting::bubble_sort::tests::test_one_element ... ok
[INFO] [stdout] test clrs::two_sum::tests::test_two_sum ... ok
[INFO] [stdout] test sorting::bubble_sort::tests::test_sort ... ok
[INFO] [stdout] test clrs::max_subarray::tests::test_find_max_subarray_recursive ... ok
[INFO] [stdout] test sorting::bucket_sort::tests::test_empty ... ok
[INFO] [stdout] test sorting::counting_sort::tests::test_empty ... ok
[INFO] [stdout] test sorting::insert_sort::tests::test_empty ... ok
[INFO] [stdout] test sorting::heap_sort::tests::test_sort ... ok
[INFO] [stdout] test sorting::radix_sort::tests::test_empty ... ok
[INFO] [stdout] test sorting::merge_sort::tests::test_odd_sort ... ok
[INFO] [stdout] test sorting::insert_sort::tests::test_one_element ... 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::selection_sort::tests::test_one_element ... ok
[INFO] [stdout] test sorting::radix_sort::tests::test_sort ... ok
[INFO] [stdout] test sorting::shell_sort::tests::test_empty ... ok
[INFO] [stdout] test sorting::shell_sort::tests::test_sort ... ok
[INFO] [stdout] test structure::deque::test::basics ... ok
[INFO] [stdout] test structure::deque::test::into_iter ... ok
[INFO] [stdout] test structure::deque::test::peek ... ok
[INFO] [stdout] test structure::list::test::basics ... ok
[INFO] [stdout] test structure::list::test::iter ... ok
[INFO] [stdout] test sorting::merge_sort::tests::test_even_sort ... ok
[INFO] [stdout] test sorting::selection_sort::tests::test_empty ... ok
[INFO] [stdout] test sorting::radix_sort::tests::test_one_element ... ok
[INFO] [stdout] test sorting::merge_sort::tests::test_empty ... ok
[INFO] [stdout] test sorting::bucket_sort::tests::test_one_element ... ok
[INFO] [stdout] test sorting::quick_sort::tests::test_one_element ... ok
[INFO] [stdout] test sorting::heap_sort::tests::test_empty ... ok
[INFO] [stdout] test sorting::counting_sort::tests::test_one_element ... ok
[INFO] [stdout] test sorting::selection_sort::tests::test_sort ... ok
[INFO] [stdout] test sorting::shell_sort::tests::test_one_element ... ok
[INFO] [stdout] test sorting::insert_sort::tests::test_sort ... ok
[INFO] [stdout] test structure::max_heap::tests::test_new ... ok
[INFO] [stdout] test structure::min_heap::tests::test_push_pop ... ok
[INFO] [stdout] test sorting::bucket_sort::tests::test_sort ... ok
[INFO] [stdout] test sorting::heap_sort::tests::test_one_element ... ok
[INFO] [stdout] test sorting::quick_sort::tests::test_sort ... ok
[INFO] [stdout] test sorting::counting_sort::tests::test_sort ... 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::unsafe_deque::test::basics ... ok
[INFO] [stdout] test structure::unsafe_deque::test::into_iter ... ok
[INFO] [stdout] test structure::unsafe_red_black_tree::tests::test_get ... ok
[INFO] [stdout] test structure::unsafe_deque::test::peek ... ok
[INFO] [stdout] test structure::unsafe_stack::test::basics ... ok
[INFO] [stdout] test structure::unsafe_red_black_tree::tests::test_inorder_tree_walk_2 ... ok
[INFO] [stdout] test structure::unsafe_red_black_tree::tests::test_inorder_tree_walk_1 ... ok
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests practices
[INFO] [stdout] test result: ok. 50 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 `"docker" "inspect" "884f01e49bbbcba681a69a2019ea821b103bb8b092fa8260f693851b1728fff5"`
[INFO] running `"docker" "rm" "-f" "884f01e49bbbcba681a69a2019ea821b103bb8b092fa8260f693851b1728fff5"`
[INFO] [stdout] 884f01e49bbbcba681a69a2019ea821b103bb8b092fa8260f693851b1728fff5