[INFO] fetching crate slab_32 0.1.1...
[INFO] testing slab_32-0.1.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate slab_32 0.1.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate slab_32 0.1.1 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_32 0.1.1
[INFO] finished tweaking crates.io crate slab_32 0.1.1
[INFO] tweaked toml for crates.io crate slab_32 0.1.1 written to /workspace/builds/worker-1/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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 0a1cedfa08ebbb4629697d068770b0395fb1727894369b1c5d0ceec5251d46bf
[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" "0a1cedfa08ebbb4629697d068770b0395fb1727894369b1c5d0ceec5251d46bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a1cedfa08ebbb4629697d068770b0395fb1727894369b1c5d0ceec5251d46bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a1cedfa08ebbb4629697d068770b0395fb1727894369b1c5d0ceec5251d46bf", kill_on_drop: false }`
[INFO] [stdout] 0a1cedfa08ebbb4629697d068770b0395fb1727894369b1c5d0ceec5251d46bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 36386f3d115b0cee0fd0df55d9cb7bc016fd90e4b00c25e8d0e5b51c09ecd494
[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" "36386f3d115b0cee0fd0df55d9cb7bc016fd90e4b00c25e8d0e5b51c09ecd494", kill_on_drop: false }`
[INFO] [stderr]    Compiling slab_32 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "36386f3d115b0cee0fd0df55d9cb7bc016fd90e4b00c25e8d0e5b51c09ecd494", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36386f3d115b0cee0fd0df55d9cb7bc016fd90e4b00c25e8d0e5b51c09ecd494", kill_on_drop: false }`
[INFO] [stdout] 36386f3d115b0cee0fd0df55d9cb7bc016fd90e4b00c25e8d0e5b51c09ecd494
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7766c51737e86e046e6fe4eff3d5f47ed5cf6a4a8879678c9dc9416489ebe119
[INFO] running `Command { std: "docker" "start" "-a" "7766c51737e86e046e6fe4eff3d5f47ed5cf6a4a8879678c9dc9416489ebe119", kill_on_drop: false }`
[INFO] [stderr]    Compiling slab_32 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.69s
[INFO] running `Command { std: "docker" "inspect" "7766c51737e86e046e6fe4eff3d5f47ed5cf6a4a8879678c9dc9416489ebe119", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7766c51737e86e046e6fe4eff3d5f47ed5cf6a4a8879678c9dc9416489ebe119", kill_on_drop: false }`
[INFO] [stdout] 7766c51737e86e046e6fe4eff3d5f47ed5cf6a4a8879678c9dc9416489ebe119
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b201130913ca6ac367086abdf4ada241acac84bb7375c76637ff86ad5f07ab8e
[INFO] running `Command { std: "docker" "start" "-a" "b201130913ca6ac367086abdf4ada241acac84bb7375c76637ff86ad5f07ab8e", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/slab_32-723875604b9daedb
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/slab-718dad3eff36289f
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test get_vacant_entry_without_using ... ok
[INFO] [stdout] test insert_get_remove_many ... 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 clear ... ok
[INFO] [stdout] test iter ... ok
[INFO] [stdout] test iter_mut ... ok
[INFO] [stdout] test slab_get_mut ... 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 double_remove_panics ... ok
[INFO] [stdout] test invalid_remove_panics ... ok
[INFO] [stdout] test invalid_get_panics ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests slab_32
[INFO] [stdout] 
[INFO] [stdout] running 27 tests
[INFO] [stdout] test src/lib.rs - Slab<T>::capacity (line 228) ... ok
[INFO] [stdout] test src/lib.rs - (line 59) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::clear (line 353) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::new (line 181) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get_unchecked_mut (line 543) ... ok
[INFO] [stdout] test src/lib.rs - (line 21) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get (line 474) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::is_empty (line 392) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::iter_mut (line 444) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get_mut (line 496) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::iter (line 413) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::len (line 374) ... ok
[INFO] [stdout] test src/lib.rs - (line 38) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get_unchecked (line 520) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::contains (line 682) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::insert (line 574) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::reserve (line 256) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::reserve_exact (line 290) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::remove (line 649) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::vacant_entry (line 596) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry::insert (line 819) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::retain (line 712) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::shrink_to_fit (line 314) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry (line 134) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::shrink_to_fit (line 330) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::with_capacity (line 201) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry::key (line 849) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 27 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b201130913ca6ac367086abdf4ada241acac84bb7375c76637ff86ad5f07ab8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b201130913ca6ac367086abdf4ada241acac84bb7375c76637ff86ad5f07ab8e", kill_on_drop: false }`
[INFO] [stdout] b201130913ca6ac367086abdf4ada241acac84bb7375c76637ff86ad5f07ab8e