[INFO] fetching crate non-empty-collections 0.1.9...
[INFO] testing non-empty-collections-0.1.9 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate non-empty-collections 0.1.9 into /workspace/builds/worker-54/source
[INFO] validating manifest of crates.io crate non-empty-collections 0.1.9 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate non-empty-collections 0.1.9
[INFO] finished tweaking crates.io crate non-empty-collections 0.1.9
[INFO] tweaked toml for crates.io crate non-empty-collections 0.1.9 written to /workspace/builds/worker-54/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c0469b1cf7f92275cbd007ff0528c57d4ea34d9b9a064d1b4148e9f7e80c19b
[INFO] running `Command { std: "docker" "start" "-a" "5c0469b1cf7f92275cbd007ff0528c57d4ea34d9b9a064d1b4148e9f7e80c19b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c0469b1cf7f92275cbd007ff0528c57d4ea34d9b9a064d1b4148e9f7e80c19b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c0469b1cf7f92275cbd007ff0528c57d4ea34d9b9a064d1b4148e9f7e80c19b", kill_on_drop: false }`
[INFO] [stdout] 5c0469b1cf7f92275cbd007ff0528c57d4ea34d9b9a064d1b4148e9f7e80c19b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 650dde977d7999665e98c12060e430db5e1ee7226102ad982b29084a4d0c84e3
[INFO] running `Command { std: "docker" "start" "-a" "650dde977d7999665e98c12060e430db5e1ee7226102ad982b29084a4d0c84e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling non-empty-collections v0.1.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/index_set/mod.rs:272:19
[INFO] [stdout]     |
[INFO] [stdout] 272 | impl<K, S> Extend<(K)> for NonEmptyIndexSet<K, S>
[INFO] [stdout]     |                   ^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` 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 15.70s
[INFO] running `Command { std: "docker" "inspect" "650dde977d7999665e98c12060e430db5e1ee7226102ad982b29084a4d0c84e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "650dde977d7999665e98c12060e430db5e1ee7226102ad982b29084a4d0c84e3", kill_on_drop: false }`
[INFO] [stdout] 650dde977d7999665e98c12060e430db5e1ee7226102ad982b29084a4d0c84e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1377a8fb3b9f85994dcbe1ba675c911f86c02413dbcfe5d3c1914b058f94a1cc
[INFO] running `Command { std: "docker" "start" "-a" "1377a8fb3b9f85994dcbe1ba675c911f86c02413dbcfe5d3c1914b058f94a1cc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling non-empty-collections v0.1.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/index_set/mod.rs:272:19
[INFO] [stdout]     |
[INFO] [stdout] 272 | impl<K, S> Extend<(K)> for NonEmptyIndexSet<K, S>
[INFO] [stdout]     |                   ^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/index_set/mod.rs:272:19
[INFO] [stdout]     |
[INFO] [stdout] 272 | impl<K, S> Extend<(K)> for NonEmptyIndexSet<K, S>
[INFO] [stdout]     |                   ^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` 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 1.22s
[INFO] running `Command { std: "docker" "inspect" "1377a8fb3b9f85994dcbe1ba675c911f86c02413dbcfe5d3c1914b058f94a1cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1377a8fb3b9f85994dcbe1ba675c911f86c02413dbcfe5d3c1914b058f94a1cc", kill_on_drop: false }`
[INFO] [stdout] 1377a8fb3b9f85994dcbe1ba675c911f86c02413dbcfe5d3c1914b058f94a1cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 938f51fd968bafa6cf277ac4292dd88ac49a6c9877469d620f219cc87d425f5b
[INFO] running `Command { std: "docker" "start" "-a" "938f51fd968bafa6cf277ac4292dd88ac49a6c9877469d620f219cc87d425f5b", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/index_set/mod.rs:272:19
[INFO] [stderr]     |
[INFO] [stderr] 272 | impl<K, S> Extend<(K)> for NonEmptyIndexSet<K, S>
[INFO] [stderr]     |                   ^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `non-empty-collections` (lib) generated 1 warning
[INFO] [stderr] warning: `non-empty-collections` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/non_empty_collections-7c4e57a97e25458d)
[INFO] [stdout] 
[INFO] [stdout] running 27 tests
[INFO] [stdout] test index_map::entry::tests::test_occupied ... ok
[INFO] [stdout] test index_map::entry::tests::test_occupied_one ... ok
[INFO] [stdout] test index_map::entry::tests::test_or_insert ... ok
[INFO] [stdout] test index_map::entry::tests::test_vacant ... ok
[INFO] [stdout] test index_map::tests::from_item_and_iterator ... ok
[INFO] [stdout] test index_map::tests::insert_and_contains ... ok
[INFO] [stdout] test index_map::tests::comparison ... ok
[INFO] [stdout] test index_map::entry::tests::test_or_insert_with ... ok
[INFO] [stdout] test index_map::tests::get_unsized ... ok
[INFO] [stdout] test index_map::tests::insert_and_get ... ok
[INFO] [stdout] test index_map::tests::into_iter ... ok
[INFO] [stdout] test index_map::tests::into_std_hashmap ... ok
[INFO] [stdout] test index_map::tests::remove_entry ... ok
[INFO] [stdout] test index_map::tests::remove_first ... ok
[INFO] [stdout] test index_set::tests::comparison ... ok
[INFO] [stdout] test index_map::tests::len ... ok
[INFO] [stdout] test index_map::tests::retain ... ok
[INFO] [stdout] test index_set::tests::from_iterator ... ok
[INFO] [stdout] test index_set::tests::get_unsized ... ok
[INFO] [stdout] test index_set::tests::insert ... ok
[INFO] [stdout] test index_set::tests::len ... ok
[INFO] [stdout] test index_set::tests::new_and_contains ... ok
[INFO] [stdout] test index_set::tests::new_and_get ... ok
[INFO] [stdout] test index_set::tests::remove ... ok
[INFO] [stdout] test index_set::tests::remove_first ... ok
[INFO] [stdout] test index_set::tests::retain ... ok
[INFO] [stdout] test index_set::tests::take ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 27 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests non-empty-collections
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> /opt/rustwide/workdir/src/index_set/mod.rs:272:19
[INFO] [stderr]     |
[INFO] [stderr] 272 | impl<K, S> Extend<(K)> for NonEmptyIndexSet<K, S>
[INFO] [stderr]     |                   ^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/index_map/mod.rs - index_map::NonEmptyIndexMap<K, V, S>::is_empty (line 235) ... ok
[INFO] [stdout] test src/index_set/mod.rs - index_set::NonEmptyIndexSet<K, S>::is_empty (line 202) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.67s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "938f51fd968bafa6cf277ac4292dd88ac49a6c9877469d620f219cc87d425f5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "938f51fd968bafa6cf277ac4292dd88ac49a6c9877469d620f219cc87d425f5b", kill_on_drop: false }`
[INFO] [stdout] 938f51fd968bafa6cf277ac4292dd88ac49a6c9877469d620f219cc87d425f5b