[INFO] crate slab 0.4.2 is already in cache
[INFO] testing slab-0.4.2 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate slab 0.4.2 into work/builds/worker-8/source
[INFO] validating manifest of crates.io crate slab 0.4.2 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate slab 0.4.2
[INFO] finished tweaking crates.io crate slab 0.4.2
[INFO] tweaked toml for crates.io crate slab 0.4.2 written to work/builds/worker-8/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 52964ff1395531427f53d42b6ced71848bc99c36217ffcbccfd2dada286d5dbe
[INFO] running `"docker" "start" "-a" "52964ff1395531427f53d42b6ced71848bc99c36217ffcbccfd2dada286d5dbe"`
[INFO] [stderr]    Compiling slab v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `"docker" "inspect" "52964ff1395531427f53d42b6ced71848bc99c36217ffcbccfd2dada286d5dbe"`
[INFO] running `"docker" "rm" "-f" "52964ff1395531427f53d42b6ced71848bc99c36217ffcbccfd2dada286d5dbe"`
[INFO] [stdout] 52964ff1395531427f53d42b6ced71848bc99c36217ffcbccfd2dada286d5dbe
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 73babab3b65ac6585aff86a82531759b2d16ddd9ed31fdb37c5536d84b898bc7
[INFO] running `"docker" "start" "-a" "73babab3b65ac6585aff86a82531759b2d16ddd9ed31fdb37c5536d84b898bc7"`
[INFO] [stderr]    Compiling slab v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `"docker" "inspect" "73babab3b65ac6585aff86a82531759b2d16ddd9ed31fdb37c5536d84b898bc7"`
[INFO] running `"docker" "rm" "-f" "73babab3b65ac6585aff86a82531759b2d16ddd9ed31fdb37c5536d84b898bc7"`
[INFO] [stdout] 73babab3b65ac6585aff86a82531759b2d16ddd9ed31fdb37c5536d84b898bc7
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 20215a2e577fb316b268c16cd6daaf469abbc256b7e5347017a81ddf2e5aefff
[INFO] running `"docker" "start" "-a" "20215a2e577fb316b268c16cd6daaf469abbc256b7e5347017a81ddf2e5aefff"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/slab-acdca0226861bf67
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/slab-55fb9a232c013cc7
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test clear ... ok
[INFO] [stdout] test fully_consumed_drain ... ok
[INFO] [stdout] test get_vacant_entry_without_using ... ok
[INFO] [stdout] test insert_get_many ... ok
[INFO] [stdout] test insert_with_vacant_entry ... ok
[INFO] [stdout] test insert_get_remove_one ... ok
[INFO] [stdout] test insert_get_remove_many ... ok
[INFO] [stdout] test iter ... ok
[INFO] [stdout] test iter_mut ... ok
[INFO] [stdout] test partially_consumed_drain ... ok
[INFO] [stdout] test reserve_does_not_allocate_if_available ... ok
[INFO] [stdout] test reserve_exact_does_not_allocate_if_available ... ok
[INFO] [stdout] test retain ... ok
[INFO] [stdout] test slab_get_mut ... ok
[INFO] [stdout] test invalid_remove_panics ... ok
[INFO] [stdout] test invalid_get_panics ... ok
[INFO] [stdout] test double_remove_panics ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests slab
[INFO] [stdout] 
[INFO] [stdout] running 28 tests
[INFO] [stdout] test src/lib.rs - Slab<T>::capacity (line 238) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::contains (line 688) ... ok
[INFO] [stdout] test src/lib.rs -  (line 63) ... ok
[INFO] [stdout] test src/lib.rs -  (line 42) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::is_empty (line 402) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get (line 484) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::clear (line 363) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get_unchecked (line 530) ... ok
[INFO] [stdout] test src/lib.rs -  (line 25) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::len (line 384) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get_mut (line 506) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::drain (line 757) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get_unchecked_mut (line 553) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::insert (line 584) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::iter_mut (line 454) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::iter (line 423) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::new (line 191) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::with_capacity (line 211) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::vacant_entry (line 606) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::reserve_exact (line 300) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::reserve (line 266) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::remove (line 657) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry::insert (line 875) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry::key (line 905) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::shrink_to_fit (line 324) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::shrink_to_fit (line 340) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::retain (line 717) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry (line 141) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 28 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "20215a2e577fb316b268c16cd6daaf469abbc256b7e5347017a81ddf2e5aefff"`
[INFO] running `"docker" "rm" "-f" "20215a2e577fb316b268c16cd6daaf469abbc256b7e5347017a81ddf2e5aefff"`
[INFO] [stdout] 20215a2e577fb316b268c16cd6daaf469abbc256b7e5347017a81ddf2e5aefff