[INFO] fetching crate skipping-search 0.1.0...
[INFO] testing skipping-search-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate skipping-search 0.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate skipping-search 0.1.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate skipping-search 0.1.0
[INFO] finished tweaking crates.io crate skipping-search 0.1.0
[INFO] tweaked toml for crates.io crate skipping-search 0.1.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9ee0833d311abb5631f62d7da021a9d40b99ed2b2c2bfe4c36f4b9ed8c59c777
[INFO] running `Command { std: "docker" "start" "-a" "9ee0833d311abb5631f62d7da021a9d40b99ed2b2c2bfe4c36f4b9ed8c59c777", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ee0833d311abb5631f62d7da021a9d40b99ed2b2c2bfe4c36f4b9ed8c59c777", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ee0833d311abb5631f62d7da021a9d40b99ed2b2c2bfe4c36f4b9ed8c59c777", kill_on_drop: false }`
[INFO] [stdout] 9ee0833d311abb5631f62d7da021a9d40b99ed2b2c2bfe4c36f4b9ed8c59c777
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa041ab176ca1e026dcfe0e3d136ecbc187a26c20749c8c1f5cde2df0d1a6360
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fa041ab176ca1e026dcfe0e3d136ecbc187a26c20749c8c1f5cde2df0d1a6360", kill_on_drop: false }`
[INFO] [stderr]    Compiling skipping-search v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/lib.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 82 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/lib.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/lib.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/lib.rs:331:21
[INFO] [stdout]     |
[INFO] [stdout] 331 |                     mem::replace(&mut *smallest_of_largest, candidate);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/lib.rs:363:21
[INFO] [stdout]     |
[INFO] [stdout] 363 |                     mem::replace(&mut *largest_of_smallest, max);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "fa041ab176ca1e026dcfe0e3d136ecbc187a26c20749c8c1f5cde2df0d1a6360", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa041ab176ca1e026dcfe0e3d136ecbc187a26c20749c8c1f5cde2df0d1a6360", kill_on_drop: false }`
[INFO] [stdout] fa041ab176ca1e026dcfe0e3d136ecbc187a26c20749c8c1f5cde2df0d1a6360
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 64b2324d137323d9848a96b26736cc3b06fb883f46b7e6041e9c4559729242fb
[INFO] running `Command { std: "docker" "start" "-a" "64b2324d137323d9848a96b26736cc3b06fb883f46b7e6041e9c4559729242fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling regex-syntax v0.4.2
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/lib.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 82 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/lib.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/lib.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/lib.rs:331:21
[INFO] [stdout]     |
[INFO] [stdout] 331 |                     mem::replace(&mut *smallest_of_largest, candidate);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/lib.rs:363:21
[INFO] [stdout]     |
[INFO] [stdout] 363 |                     mem::replace(&mut *largest_of_smallest, max);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rusty-fork v0.2.2
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling proptest v0.7.2
[INFO] [stderr]    Compiling skipping-search v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/lib.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 82 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/lib.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]   --> src/lib.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/lib.rs:331:21
[INFO] [stdout]     |
[INFO] [stdout] 331 |                     mem::replace(&mut *smallest_of_largest, candidate);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/lib.rs:363:21
[INFO] [stdout]     |
[INFO] [stdout] 363 |                     mem::replace(&mut *largest_of_smallest, max);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 16.36s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/skipping_search-0f5c3a95ed51e933)
[INFO] running `Command { std: "docker" "inspect" "64b2324d137323d9848a96b26736cc3b06fb883f46b7e6041e9c4559729242fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64b2324d137323d9848a96b26736cc3b06fb883f46b7e6041e9c4559729242fb", kill_on_drop: false }`
[INFO] [stdout] 64b2324d137323d9848a96b26736cc3b06fb883f46b7e6041e9c4559729242fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1a6b3bc91984be74b1e1e340f587b308fb35065297f2869a26accc8fd710dfa2
[INFO] running `Command { std: "docker" "start" "-a" "1a6b3bc91984be74b1e1e340f587b308fb35065297f2869a26accc8fd710dfa2", kill_on_drop: false }`
[INFO] [stderr] warning: `#[inline]` is ignored on function prototypes
[INFO] [stderr]   --> src/lib.rs:82:5
[INFO] [stderr]    |
[INFO] [stderr] 82 |     #[inline]
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `#[inline]` is ignored on function prototypes
[INFO] [stderr]   --> src/lib.rs:88:5
[INFO] [stderr]    |
[INFO] [stderr] 88 |     #[inline]
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `#[inline]` is ignored on function prototypes
[INFO] [stderr]   --> src/lib.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 |     #[inline]
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/lib.rs:331:21
[INFO] [stderr]     |
[INFO] [stderr] 331 |                     mem::replace(&mut *smallest_of_largest, candidate);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/lib.rs:363:21
[INFO] [stderr]     |
[INFO] [stderr] 363 |                     mem::replace(&mut *largest_of_smallest, max);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: `skipping-search` (lib) generated 5 warnings
[INFO] [stderr] warning: `skipping-search` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/skipping_search-0f5c3a95ed51e933)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::test_pair_intersection_empty_for_non_overlapping_slices ... ok
[INFO] [stdout] test tests::test_counting_intersection_empty_for_insufficiently_overlapping_slices ... ok
[INFO] [stdout] test tests::test_multi_intersection_empty_for_non_mutually_overlapping_slices ... ok
[INFO] [stdout] test tests::test_multi_intersection_results_for_overlapping_slices ... ok
[INFO] [stdout] test tests::test_pair_intersection_results_for_overlapping_slices ... ok
[INFO] [stdout] test tests::test_counting_intersection_results_for_sufficiently_overlapping_slices ... ok
[INFO] [stderr]    Doc-tests skipping-search
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 5.50s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 36) ... ok
[INFO] [stdout] test src/lib.rs - (line 17) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.65s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1a6b3bc91984be74b1e1e340f587b308fb35065297f2869a26accc8fd710dfa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a6b3bc91984be74b1e1e340f587b308fb35065297f2869a26accc8fd710dfa2", kill_on_drop: false }`
[INFO] [stdout] 1a6b3bc91984be74b1e1e340f587b308fb35065297f2869a26accc8fd710dfa2