[INFO] fetching crate algorithmica 0.1.9...
[INFO] testing algorithmica-0.1.9 against 1.55.0 for beta-1.56-1
[INFO] extracting crate algorithmica 0.1.9 into /workspace/builds/worker-97/source
[INFO] validating manifest of crates.io crate algorithmica 0.1.9 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 crates.io crate algorithmica 0.1.9
[INFO] finished tweaking crates.io crate algorithmica 0.1.9
[INFO] tweaked toml for crates.io crate algorithmica 0.1.9 written to /workspace/builds/worker-97/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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] 43980620b9c7cea928d5536c8058b140cc45b07a74425961bf0af27db5b4bf14
[INFO] running `Command { std: "docker" "start" "-a" "43980620b9c7cea928d5536c8058b140cc45b07a74425961bf0af27db5b4bf14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43980620b9c7cea928d5536c8058b140cc45b07a74425961bf0af27db5b4bf14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43980620b9c7cea928d5536c8058b140cc45b07a74425961bf0af27db5b4bf14", kill_on_drop: false }`
[INFO] [stdout] 43980620b9c7cea928d5536c8058b140cc45b07a74425961bf0af27db5b4bf14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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] b6c3cf38aa9e701cbf3caa42b426e7b3a8c8fafa2b2bc40fa0bb197ce1cc8c13
[INFO] running `Command { std: "docker" "start" "-a" "b6c3cf38aa9e701cbf3caa42b426e7b3a8c8fafa2b2bc40fa0bb197ce1cc8c13", kill_on_drop: false }`
[INFO] [stderr]    Compiling algorithmica v0.1.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `Command { std: "docker" "inspect" "b6c3cf38aa9e701cbf3caa42b426e7b3a8c8fafa2b2bc40fa0bb197ce1cc8c13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6c3cf38aa9e701cbf3caa42b426e7b3a8c8fafa2b2bc40fa0bb197ce1cc8c13", kill_on_drop: false }`
[INFO] [stdout] b6c3cf38aa9e701cbf3caa42b426e7b3a8c8fafa2b2bc40fa0bb197ce1cc8c13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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] 91cdd8bd6ad9fe27730c83d2e83d397ff73c8b88391bf084f0f8c882c472ae2f
[INFO] running `Command { std: "docker" "start" "-a" "91cdd8bd6ad9fe27730c83d2e83d397ff73c8b88391bf084f0f8c882c472ae2f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling algorithmica v0.1.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.05s
[INFO] running `Command { std: "docker" "inspect" "91cdd8bd6ad9fe27730c83d2e83d397ff73c8b88391bf084f0f8c882c472ae2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91cdd8bd6ad9fe27730c83d2e83d397ff73c8b88391bf084f0f8c882c472ae2f", kill_on_drop: false }`
[INFO] [stdout] 91cdd8bd6ad9fe27730c83d2e83d397ff73c8b88391bf084f0f8c882c472ae2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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] ec5eaf732497aa84f0d07061e6a0528ed98336dbfb07c5c5a8ecc7c83fe0bf92
[INFO] running `Command { std: "docker" "start" "-a" "ec5eaf732497aa84f0d07061e6a0528ed98336dbfb07c5c5a8ecc7c83fe0bf92", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 35 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/algorithmica-cac687177d32f49c)
[INFO] [stdout] test math::matrix::test::matrix_add ... ok
[INFO] [stdout] test math::matrix::test::matrix_mul ... ok
[INFO] [stdout] test sort::heap_sort::tests::sort_test_2 ... ok
[INFO] [stdout] test sort::heap_sort::tests::sort_test_4 ... ok
[INFO] [stdout] test sort::merge_sort::test::sorting_test ... ok
[INFO] [stdout] test sort::test::bubble_sort_int ... ok
[INFO] [stdout] test sort::test::bubble_sort_by_fn ... ok
[INFO] [stdout] test sort::heap_sort::tests::sort_test_1 ... ok
[INFO] [stdout] test sort::test::bubble_sort_struct ... ok
[INFO] [stdout] test sort::test::insertion_sort_int ... ok
[INFO] [stdout] test sort::heap_sort::tests::sort_test_3 ... ok
[INFO] [stdout] test search::tests::test_int ... ok
[INFO] [stdout] test sort::heap_sort::tests::swim_test_1 ... ok
[INFO] [stdout] test search::tests::test_str ... ok
[INFO] [stdout] test search::tests::test_struct ... ok
[INFO] [stdout] test sort::heap_sort::tests::sink_test_1 ... ok
[INFO] [stdout] test sort::heap_sort::tests::sink_test_2 ... ok
[INFO] [stdout] test graph::tests::test_read_file ... ok
[INFO] [stdout] test sort::test::insertion_sort_str ... ok
[INFO] [stdout] test sort::test::quick_sort ... ok
[INFO] [stdout] test sort::test::quick_sort_struct ... ok
[INFO] [stdout] test sort::test::selection_sort_struct_by ... ok
[INFO] [stdout] test subset::test::subset_test_int ... ok
[INFO] [stdout] test sort::test::is_sorted_test_by ... ok
[INFO] [stdout] test tree::bst::test::create ... ignored
[INFO] [stdout] test sort::test::is_sorted_test ... ok
[INFO] [stdout] test sort::test::selection_sort_struct ... ok
[INFO] [stdout] test sort::test::selection_sort_str ... ok
[INFO] [stdout] test sort::test::insertion_sort_struct ... ok
[INFO] [stdout] test sort::test::selection_sort_int ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test sort::test::insertion_sort_struct_by ... ok
[INFO] [stdout] test tree::bst::test::find ... ok
[INFO] [stdout] test subset::test::subset_test_string ... ok
[INFO] [stdout] test tree::test::t ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 34 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests algorithmica
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/subset.rs - subset::find_all_subset (line 22) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.62s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ec5eaf732497aa84f0d07061e6a0528ed98336dbfb07c5c5a8ecc7c83fe0bf92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec5eaf732497aa84f0d07061e6a0528ed98336dbfb07c5c5a8ecc7c83fe0bf92", kill_on_drop: false }`
[INFO] [stdout] ec5eaf732497aa84f0d07061e6a0528ed98336dbfb07c5c5a8ecc7c83fe0bf92