[INFO] fetching crate algorithm_playground 1.0.2...
[INFO] testing algorithm_playground-1.0.2 against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] extracting crate algorithm_playground 1.0.2 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate algorithm_playground 1.0.2
[INFO] finished tweaking crates.io crate algorithm_playground 1.0.2
[INFO] tweaked toml for crates.io crate algorithm_playground 1.0.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate algorithm_playground 1.0.2 on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "generate-lockfile" "--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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1438e610e3379eb8d8164ea9d333edef1ef94108ac6e5b325c968178db0ee4f3
[INFO] running `Command { std: "docker" "start" "-a" "1438e610e3379eb8d8164ea9d333edef1ef94108ac6e5b325c968178db0ee4f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1438e610e3379eb8d8164ea9d333edef1ef94108ac6e5b325c968178db0ee4f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1438e610e3379eb8d8164ea9d333edef1ef94108ac6e5b325c968178db0ee4f3", kill_on_drop: false }`
[INFO] [stdout] 1438e610e3379eb8d8164ea9d333edef1ef94108ac6e5b325c968178db0ee4f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ec2c1dc40f98d235bb95b21942a4c3f8fb40e9936f1906fdbcbf2d1f3a8512b
[INFO] running `Command { std: "docker" "start" "-a" "4ec2c1dc40f98d235bb95b21942a4c3f8fb40e9936f1906fdbcbf2d1f3a8512b", kill_on_drop: false }`
[INFO] [stderr]    Compiling algorithm_playground v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "4ec2c1dc40f98d235bb95b21942a4c3f8fb40e9936f1906fdbcbf2d1f3a8512b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ec2c1dc40f98d235bb95b21942a4c3f8fb40e9936f1906fdbcbf2d1f3a8512b", kill_on_drop: false }`
[INFO] [stdout] 4ec2c1dc40f98d235bb95b21942a4c3f8fb40e9936f1906fdbcbf2d1f3a8512b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bdef842d397aaf6bb2f52562d9a249716d30633881c9b00f5d3b5936c46b7d61
[INFO] running `Command { std: "docker" "start" "-a" "bdef842d397aaf6bb2f52562d9a249716d30633881c9b00f5d3b5936c46b7d61", kill_on_drop: false }`
[INFO] [stderr]    Compiling algorithm_playground v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "bdef842d397aaf6bb2f52562d9a249716d30633881c9b00f5d3b5936c46b7d61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdef842d397aaf6bb2f52562d9a249716d30633881c9b00f5d3b5936c46b7d61", kill_on_drop: false }`
[INFO] [stdout] bdef842d397aaf6bb2f52562d9a249716d30633881c9b00f5d3b5936c46b7d61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e1166b12469ddefd1043635bd86d80d091d8a7048bd7ff56f6ce09d3f69816aa
[INFO] running `Command { std: "docker" "start" "-a" "e1166b12469ddefd1043635bd86d80d091d8a7048bd7ff56f6ce09d3f69816aa", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/algorithm_playground-3879c4637037be4b)
[INFO] [stdout] running 10 tests
[INFO] [stderr]    Doc-tests algorithm_playground
[INFO] [stdout] test search_tests::test_linear_search ... ok
[INFO] [stdout] test search_tests::test_tree_contains ... ok
[INFO] [stdout] test sort_tests::test_quick_sort ... ok
[INFO] [stdout] test sort_tests::test_heap_sort ... ok
[INFO] [stdout] test sort_tests::test_bubble_sort ... ok
[INFO] [stdout] test sort_tests::test_selection_sort ... ok
[INFO] [stdout] test sort_tests::test_insertion_sort ... ok
[INFO] [stdout] test search_tests::test_binary_search ... ok
[INFO] [stdout] test sort_tests::test_merge_sort ... ok
[INFO] [stdout] test search_tests::test_graph_dfs_and_bfs ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test src/algorithms/searching.rs - algorithms::searching::searching::Graph::add_edge (line 120) ... ok
[INFO] [stdout] test src/algorithms/searching.rs - algorithms::searching::searching::Graph::dfs (line 150) ... ok
[INFO] [stdout] test src/algorithms/searching.rs - algorithms::searching::searching::TreeNode<T>::new (line 243) ... ok
[INFO] [stdout] test src/algorithms/sorting.rs - algorithms::sorting::sorting::selection_sort (line 177) ... ok
[INFO] [stdout] test src/algorithms/searching.rs - algorithms::searching::searching::TreeNode<T>::contains (line 272) ... ok
[INFO] [stdout] test src/algorithms/sorting.rs - algorithms::sorting::sorting::heap_sort (line 67) ... ok
[INFO] [stdout] test src/algorithms/searching.rs - algorithms::searching::searching::linear_search (line 23) ... ok
[INFO] [stdout] test src/algorithms/searching.rs - algorithms::searching::searching::Graph::bfs (line 197) ... ok
[INFO] [stdout] test src/algorithms/searching.rs - algorithms::searching::searching::binary_search (line 57) ... ok
[INFO] [stdout] test src/algorithms/sorting.rs - algorithms::sorting::sorting::quick_sort (line 116) ... ok
[INFO] [stdout] test src/algorithms/sorting.rs - algorithms::sorting::sorting::insertion_sort (line 154) ... ok
[INFO] [stdout] test src/algorithms/searching.rs - algorithms::searching::searching::Graph::new (line 96) ... ok
[INFO] [stdout] test src/algorithms/sorting.rs - algorithms::sorting::sorting::bubble_sort (line 204) ... ok
[INFO] [stdout] test src/algorithms/sorting.rs - algorithms::sorting::sorting::merge_sort (line 10) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.73s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e1166b12469ddefd1043635bd86d80d091d8a7048bd7ff56f6ce09d3f69816aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1166b12469ddefd1043635bd86d80d091d8a7048bd7ff56f6ce09d3f69816aa", kill_on_drop: false }`
[INFO] [stdout] e1166b12469ddefd1043635bd86d80d091d8a7048bd7ff56f6ce09d3f69816aa