[INFO] cloning repository https://github.com/DMJ16/rs-algo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DMJ16/rs-algo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDMJ16%2Frs-algo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDMJ16%2Frs-algo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c7e2bcf795e43f4dedc34de5a91303bff304430
[INFO] testing DMJ16/rs-algo against 1.55.0 for beta-1.56-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDMJ16%2Frs-algo" "/workspace/builds/worker-63/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-63/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DMJ16/rs-algo on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DMJ16/rs-algo
[INFO] finished tweaking git repo https://github.com/DMJ16/rs-algo
[INFO] tweaked toml for git repo https://github.com/DMJ16/rs-algo written to /workspace/builds/worker-63/source/Cargo.toml
[INFO] crate git repo https://github.com/DMJ16/rs-algo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a54cbf163c55382bde1a6703846f3e8e933923ddc010b73d09b4c3363bf9622c
[INFO] running `Command { std: "docker" "start" "-a" "a54cbf163c55382bde1a6703846f3e8e933923ddc010b73d09b4c3363bf9622c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a54cbf163c55382bde1a6703846f3e8e933923ddc010b73d09b4c3363bf9622c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a54cbf163c55382bde1a6703846f3e8e933923ddc010b73d09b4c3363bf9622c", kill_on_drop: false }`
[INFO] [stdout] a54cbf163c55382bde1a6703846f3e8e933923ddc010b73d09b4c3363bf9622c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b95ad9c2dcd9ca243f0a640732be5a2757001ca44e98841bfbdaaba41b017c49
[INFO] running `Command { std: "docker" "start" "-a" "b95ad9c2dcd9ca243f0a640732be5a2757001ca44e98841bfbdaaba41b017c49", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling num-complex v0.3.0
[INFO] [stderr]    Compiling num v0.3.0
[INFO] [stderr]    Compiling data_struct v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/collections/graph.rs:153:10
[INFO] [stdout]     |
[INFO] [stdout] 153 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.13s
[INFO] running `Command { std: "docker" "inspect" "b95ad9c2dcd9ca243f0a640732be5a2757001ca44e98841bfbdaaba41b017c49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b95ad9c2dcd9ca243f0a640732be5a2757001ca44e98841bfbdaaba41b017c49", kill_on_drop: false }`
[INFO] [stdout] b95ad9c2dcd9ca243f0a640732be5a2757001ca44e98841bfbdaaba41b017c49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3bbe6c0164e79bc6096b4b9cc9304aa8e3e5c22d77aaa24520424628f3dc5336
[INFO] running `Command { std: "docker" "start" "-a" "3bbe6c0164e79bc6096b4b9cc9304aa8e3e5c22d77aaa24520424628f3dc5336", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling data_struct v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/collections/graph.rs:153:10
[INFO] [stdout]     |
[INFO] [stdout] 153 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.06s
[INFO] running `Command { std: "docker" "inspect" "3bbe6c0164e79bc6096b4b9cc9304aa8e3e5c22d77aaa24520424628f3dc5336", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bbe6c0164e79bc6096b4b9cc9304aa8e3e5c22d77aaa24520424628f3dc5336", kill_on_drop: false }`
[INFO] [stdout] 3bbe6c0164e79bc6096b4b9cc9304aa8e3e5c22d77aaa24520424628f3dc5336
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e94e1e1c648f4705dc8e256e5c308bb6ab66f2c1b5bf13cc2786d442caf53aca
[INFO] running `Command { std: "docker" "start" "-a" "e94e1e1c648f4705dc8e256e5c308bb6ab66f2c1b5bf13cc2786d442caf53aca", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/collections/graph.rs:153:10
[INFO] [stderr]     |
[INFO] [stderr] 153 |         };
[INFO] [stderr]     |          ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `data_struct` (bin "data_struct" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/data_struct-24b00d61e2e156d2)
[INFO] [stdout] 
[INFO] [stdout] running 36 tests
[INFO] [stdout] test algorithms::binary_search::test::binary_search_test ... ok
[INFO] [stdout] test algorithms::bubble_sort::test::test_bubble_sort ... ok
[INFO] [stdout] test algorithms::factorial::test::factorial_iterative ... ok
[INFO] [stdout] test algorithms::factorial::test::factorial_recursive ... ok
[INFO] [stdout] test algorithms::fib::test::get_fib_even_sum_to_n ... ok
[INFO] [stdout] test algorithms::fib::test::get_nth_fibonacci_expotential ... ok
[INFO] [stdout] test algorithms::fib::test::get_nth_fibonacci_iterative ... ok
[INFO] [stdout] test algorithms::fib::test::get_nth_fibonacci_recursive ... ok
[INFO] [stdout] test algorithms::heap_sort::test::heap_sort_test ... ok
[INFO] [stdout] test algorithms::kadane::test::test_kadane ... ok
[INFO] [stdout] test algorithms::kmp::test::kmp_test ... ok
[INFO] [stdout] test algorithms::levenshtein::test::levenshtein ... ok
[INFO] [stdout] test algorithms::merge_sort::test::test_merge_sort ... ok
[INFO] [stdout] test algorithms::peasant_mult::test::test_peasant_multiplication ... ok
[INFO] [stdout] test algorithms::quick_sort::test::test_quick_sort ... ok
[INFO] [stdout] test algorithms::shell_sort::test::test_shell_sort ... ok
[INFO] [stdout] test algorithms::sieve_of_e::test::get_primes ... ok
[INFO] [stdout] test collections::basic_list::test::iter ... ok
[INFO] [stdout] test collections::basic_list::test::basics ... ok
[INFO] [stdout] test collections::basic_list::test::iter_mut ... ok
[INFO] [stdout] test collections::basic_list::test::iterator ... ok
[INFO] [stdout] test collections::basic_list::test::peek ... ok
[INFO] [stdout] test collections::bst::test::dfs ... ok
[INFO] [stdout] test collections::bst::test::insert_and_find_node ... ok
[INFO] [stdout] test collections::bst::test::validate ... ok
[INFO] [stdout] test collections::deque::test::basics ... ok
[INFO] [stdout] test collections::deque::test::into_iter ... ok
[INFO] [stdout] test collections::deque::test::peek ... ok
[INFO] [stdout] test collections::doubly_linked_list::test::test_doubly_linked_list ... ok
[INFO] [stdout] test collections::persistent_list::test::basics ... ok
[INFO] [stdout] test collections::stack::test::basics ... ok
[INFO] [stdout] test collections::unsafe_queue::test::into_iter ... ok
[INFO] [stdout] test collections::graph::test::test_graph ... ok
[INFO] [stdout] test collections::unsafe_queue::test::iter ... ok
[INFO] [stdout] test collections::persistent_list::test::iter ... ok
[INFO] [stdout] test collections::unsafe_queue::test::iter_mut ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 36 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e94e1e1c648f4705dc8e256e5c308bb6ab66f2c1b5bf13cc2786d442caf53aca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e94e1e1c648f4705dc8e256e5c308bb6ab66f2c1b5bf13cc2786d442caf53aca", kill_on_drop: false }`
[INFO] [stdout] e94e1e1c648f4705dc8e256e5c308bb6ab66f2c1b5bf13cc2786d442caf53aca