[INFO] fetching crate array_stump 0.2.1...
[INFO] testing array_stump-0.2.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate array_stump 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate array_stump 0.2.1 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 array_stump 0.2.1
[INFO] finished tweaking crates.io crate array_stump 0.2.1
[INFO] tweaked toml for crates.io crate array_stump 0.2.1 written to /workspace/builds/worker-4/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] running `Command { std: "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" "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] 5d460900cb6d9bea3d853b6af4a6d36609279290edd23937f597716718aa36d8
[INFO] running `Command { std: "docker" "start" "-a" "5d460900cb6d9bea3d853b6af4a6d36609279290edd23937f597716718aa36d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d460900cb6d9bea3d853b6af4a6d36609279290edd23937f597716718aa36d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d460900cb6d9bea3d853b6af4a6d36609279290edd23937f597716718aa36d8", kill_on_drop: false }`
[INFO] [stdout] 5d460900cb6d9bea3d853b6af4a6d36609279290edd23937f597716718aa36d8
[INFO] running `Command { std: "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" "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] 29edb24dabe91eb22e4d2de0aef7b6315c43531e8773db50bd4257060804c41a
[INFO] running `Command { std: "docker" "start" "-a" "29edb24dabe91eb22e4d2de0aef7b6315c43531e8773db50bd4257060804c41a", kill_on_drop: false }`
[INFO] [stderr]    Compiling array_stump v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "29edb24dabe91eb22e4d2de0aef7b6315c43531e8773db50bd4257060804c41a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29edb24dabe91eb22e4d2de0aef7b6315c43531e8773db50bd4257060804c41a", kill_on_drop: false }`
[INFO] [stdout] 29edb24dabe91eb22e4d2de0aef7b6315c43531e8773db50bd4257060804c41a
[INFO] running `Command { std: "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" "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] c49c4bb58a18d4ca005cffd57cb9c9a802f72dcec43accd1ac5729190e755583
[INFO] running `Command { std: "docker" "start" "-a" "c49c4bb58a18d4ca005cffd57cb9c9a802f72dcec43accd1ac5729190e755583", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling pretty_assertions v0.6.1
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling array_stump v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.64s
[INFO] running `Command { std: "docker" "inspect" "c49c4bb58a18d4ca005cffd57cb9c9a802f72dcec43accd1ac5729190e755583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c49c4bb58a18d4ca005cffd57cb9c9a802f72dcec43accd1ac5729190e755583", kill_on_drop: false }`
[INFO] [stdout] c49c4bb58a18d4ca005cffd57cb9c9a802f72dcec43accd1ac5729190e755583
[INFO] running `Command { std: "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" "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] bf01290b9e894d957d41b6f7e14e90b0545630d4c5794877fa2f387ec94ca3e4
[INFO] running `Command { std: "docker" "start" "-a" "bf01290b9e894d957d41b6f7e14e90b0545630d4c5794877fa2f387ec94ca3e4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/array_stump-c5d623c10e1acf5f)
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test array_stump::test::test_apply_reduced_capacity ... ok
[INFO] [stdout] test array_stump::test::test_array_stump_collect ... ok
[INFO] [stdout] test array_stump::test::test_apply_reduced_capacity_multi_split ... ok
[INFO] [stdout] test array_stump::test::test_apply_reduced_capacity_favor_equal_splits ... ok
[INFO] [stdout] test array_stump::test::test_apply_reduced_capacity_smaller_blocks_are_kept ... ok
[INFO] [stdout] test array_stump::test::test_array_stump_initial_push ... ok
[INFO] [stdout] test array_stump::test::test_array_stump_prefers_push ... ok
[INFO] [stdout] test array_stump::test::test_array_stump_no_index_hiccup ... ok
[INFO] [stdout] test array_stump::test::test_binary_search_basic ... ok
[INFO] [stdout] test array_stump::test::test_binary_search_empty ... ok
[INFO] [stdout] test array_stump::test::test_find ... ok
[INFO] [stdout] test array_stump::test::test_get_by_index ... ok
[INFO] [stdout] test array_stump::test::test_get_elements_per_block ... ok
[INFO] [stdout] test array_stump::test::test_min_max ... ok
[INFO] [stdout] test array_stump::test::test_next_index ... ok
[INFO] [stdout] test array_stump::test::test_prev_index ... ok
[INFO] [stdout] test array_stump::test::test_remove ... ok
[INFO] [stdout] test array_stump::test::test_split ... ok
[INFO] [stdout] test array_stump::test::test_statistics_and_debugging ... ok
[INFO] [stdout] test array_stump::test::test_split_on_index_with_equality ... ok
[INFO] [stdout] test array_stump::test::test_wiggle ... ok
[INFO] [stdout] test array_stump::test::test_failing ... ok
[INFO] [stderr]    Doc-tests array_stump
[INFO] [stdout] test array_stump::test::test_binary_search_brute_force ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.51s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.35s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bf01290b9e894d957d41b6f7e14e90b0545630d4c5794877fa2f387ec94ca3e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf01290b9e894d957d41b6f7e14e90b0545630d4c5794877fa2f387ec94ca3e4", kill_on_drop: false }`
[INFO] [stdout] bf01290b9e894d957d41b6f7e14e90b0545630d4c5794877fa2f387ec94ca3e4