[INFO] fetching crate slab 0.4.2...
[INFO] testing slab-0.4.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate slab 0.4.2 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate slab 0.4.2 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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 /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bcbfe80417a79535cf49201771a80733ed339d774ed388f87fa047f2f79a617e
[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" "bcbfe80417a79535cf49201771a80733ed339d774ed388f87fa047f2f79a617e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bcbfe80417a79535cf49201771a80733ed339d774ed388f87fa047f2f79a617e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcbfe80417a79535cf49201771a80733ed339d774ed388f87fa047f2f79a617e", kill_on_drop: false }`
[INFO] [stdout] bcbfe80417a79535cf49201771a80733ed339d774ed388f87fa047f2f79a617e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 086fb8ffd887f9f20f461909edf88fda52dcd836d2b3e432913ff1deab279570
[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" "086fb8ffd887f9f20f461909edf88fda52dcd836d2b3e432913ff1deab279570", kill_on_drop: false }`
[INFO] [stderr]    Compiling slab v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "086fb8ffd887f9f20f461909edf88fda52dcd836d2b3e432913ff1deab279570", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "086fb8ffd887f9f20f461909edf88fda52dcd836d2b3e432913ff1deab279570", kill_on_drop: false }`
[INFO] [stdout] 086fb8ffd887f9f20f461909edf88fda52dcd836d2b3e432913ff1deab279570
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d70136457b6b569220585eb89a2284ceb418986e2bac197c0e5216385dc4cf81
[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" "d70136457b6b569220585eb89a2284ceb418986e2bac197c0e5216385dc4cf81", kill_on_drop: false }`
[INFO] [stderr]    Compiling slab v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `Command { std: "docker" "inspect" "d70136457b6b569220585eb89a2284ceb418986e2bac197c0e5216385dc4cf81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d70136457b6b569220585eb89a2284ceb418986e2bac197c0e5216385dc4cf81", kill_on_drop: false }`
[INFO] [stdout] d70136457b6b569220585eb89a2284ceb418986e2bac197c0e5216385dc4cf81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ba960ec646c6d6c3baf2a6c8d29c998420a475d98a6297580b179179f94059b0
[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" "ba960ec646c6d6c3baf2a6c8d29c998420a475d98a6297580b179179f94059b0", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/slab-2a1cccb8b6ab87fd
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/slab-c042fc3346371abb
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test retain ... ok
[INFO] [stdout] test clear ... ok
[INFO] [stdout] test fully_consumed_drain ... ok
[INFO] [stdout] test get_vacant_entry_without_using ... ok
[INFO] [stdout] test slab_get_mut ... ok
[INFO] [stdout] test iter ... ok
[INFO] [stdout] test insert_get_many ... ok
[INFO] [stdout] test reserve_exact_does_not_allocate_if_available ... 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 insert_get_remove_one ... ok
[INFO] [stdout] test insert_get_remove_many ... ok
[INFO] [stdout] test insert_with_vacant_entry ... ok
[INFO] [stdout] test invalid_get_panics ... ok
[INFO] [stderr]    Doc-tests slab
[INFO] [stdout] test invalid_remove_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] [stdout] 
[INFO] [stdout] running 28 tests
[INFO] [stdout] test src/lib.rs - (line 63) ... ok
[INFO] [stdout] test src/lib.rs - (line 25) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get_unchecked_mut (line 553) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::clear (line 363) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::capacity (line 238) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::insert (line 584) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get_mut (line 506) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::iter_mut (line 454) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get_unchecked (line 530) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::is_empty (line 402) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::contains (line 688) ... ok
[INFO] [stdout] test src/lib.rs - (line 42) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get (line 484) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::drain (line 757) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::len (line 384) ... 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>::reserve (line 266) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::retain (line 717) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::shrink_to_fit (line 324) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::remove (line 657) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::with_capacity (line 211) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry::key (line 905) ... 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 - VacantEntry (line 141) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry::insert (line 875) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::shrink_to_fit (line 340) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 28 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ba960ec646c6d6c3baf2a6c8d29c998420a475d98a6297580b179179f94059b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba960ec646c6d6c3baf2a6c8d29c998420a475d98a6297580b179179f94059b0", kill_on_drop: false }`
[INFO] [stdout] ba960ec646c6d6c3baf2a6c8d29c998420a475d98a6297580b179179f94059b0