[INFO] fetching crate super-slab 0.1.0...
[INFO] testing super-slab-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate super-slab 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate super-slab 0.1.0 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 super-slab 0.1.0
[INFO] finished tweaking crates.io crate super-slab 0.1.0
[INFO] tweaked toml for crates.io crate super-slab 0.1.0 written to /workspace/builds/worker-2/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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 78e96a8dedd67c9bdef1d2fcd6b298bec3959152bd005b860231e705e2050d6a
[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" "78e96a8dedd67c9bdef1d2fcd6b298bec3959152bd005b860231e705e2050d6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78e96a8dedd67c9bdef1d2fcd6b298bec3959152bd005b860231e705e2050d6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78e96a8dedd67c9bdef1d2fcd6b298bec3959152bd005b860231e705e2050d6a", kill_on_drop: false }`
[INFO] [stdout] 78e96a8dedd67c9bdef1d2fcd6b298bec3959152bd005b860231e705e2050d6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 69d7d5aab68cb6c2853c45eb75abf8e073ae3f38216a0a38342b2c180422e35a
[INFO] running `Command { std: "docker" "start" "-a" "69d7d5aab68cb6c2853c45eb75abf8e073ae3f38216a0a38342b2c180422e35a", kill_on_drop: false }`
[INFO] [stderr]    Compiling super-slab v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "69d7d5aab68cb6c2853c45eb75abf8e073ae3f38216a0a38342b2c180422e35a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69d7d5aab68cb6c2853c45eb75abf8e073ae3f38216a0a38342b2c180422e35a", kill_on_drop: false }`
[INFO] [stdout] 69d7d5aab68cb6c2853c45eb75abf8e073ae3f38216a0a38342b2c180422e35a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 8914652aba38080db3a9c646e809bccc5e9b7e0a9375655ef612a7995455428c
[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" "8914652aba38080db3a9c646e809bccc5e9b7e0a9375655ef612a7995455428c", kill_on_drop: false }`
[INFO] [stderr]    Compiling super-slab v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "8914652aba38080db3a9c646e809bccc5e9b7e0a9375655ef612a7995455428c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8914652aba38080db3a9c646e809bccc5e9b7e0a9375655ef612a7995455428c", kill_on_drop: false }`
[INFO] [stdout] 8914652aba38080db3a9c646e809bccc5e9b7e0a9375655ef612a7995455428c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 129617cc7c430676a8f6f752956bb88c26e96487fd8e57afa61d0f228819a3b7
[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" "129617cc7c430676a8f6f752956bb88c26e96487fd8e57afa61d0f228819a3b7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/super_slab-148ce3fbd993b304
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/super_slab-d93bc297ef8fe349
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::iter ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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_remove_one ... ok
[INFO] [stdout] test insert_get_remove_many ... ok
[INFO] [stdout] test insert_with_vacant_entry ... ok
[INFO] [stdout] test insert_get_many ... ok
[INFO] [stdout] test iter_mut ... ok
[INFO] [stdout] test iter ... ok
[INFO] [stdout] test partially_consumed_drain ... ok
[INFO] [stdout] test reserve_exact_does_not_allocate_if_available ... ok
[INFO] [stdout] test reserve_does_not_allocate_if_available ... ok
[INFO] [stdout] test retain ... ok
[INFO] [stdout] test slab_get_mut ... 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. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests super-slab
[INFO] [stdout] 
[INFO] [stdout] running 26 tests
[INFO] [stdout] test src/lib.rs - SuperSlab<T>::capacity (line 267) ... ok
[INFO] [stdout] test src/lib.rs - (line 43) ... ok
[INFO] [stdout] test src/lib.rs - SuperSlab<T>::insert (line 510) ... ok
[INFO] [stdout] test src/lib.rs - SuperSlab<T>::clear (line 282) ... ok
[INFO] [stdout] test src/lib.rs - SuperSlab<T>::iter (line 339) ... ok
[INFO] [stdout] test src/lib.rs - SuperSlab<T>::iter_mut (line 374) ... ok
[INFO] [stdout] test src/lib.rs - SuperSlab<T>::get_unchecked_mut (line 480) ... ok
[INFO] [stdout] test src/lib.rs - SuperSlab<T>::contains (line 633) ... ok
[INFO] [stdout] test src/lib.rs - SuperSlab<T>::get (line 409) ... ok
[INFO] [stdout] test src/lib.rs - SuperSlab<T>::get_mut (line 432) ... ok
[INFO] [stdout] test src/lib.rs - (line 76) ... ok
[INFO] [stdout] test src/lib.rs - SuperSlab<T>::drain (line 700) ... ok
[INFO] [stdout] test src/lib.rs - (line 26) ... ok
[INFO] [stdout] test src/lib.rs - SuperSlab<T>::get_unchecked (line 458) ... ok
[INFO] [stdout] test src/lib.rs - SuperSlab<T>::is_empty (line 320) ... ok
[INFO] [stdout] test src/lib.rs - SuperSlab<T>::len (line 300) ... ok
[INFO] [stdout] test src/lib.rs - SuperSlab<T>::new (line 168) ... ok
[INFO] [stdout] test src/lib.rs - SuperSlab<T>::vacant_entry (line 569) ... ok
[INFO] [stdout] test src/lib.rs - (line 63) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry::key (line 836) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry (line 117) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry::insert (line 813) ... ok
[INFO] [stdout] test src/lib.rs - SuperSlab<T>::retain (line 657) ... ok
[INFO] [stdout] test src/lib.rs - SuperSlab<T>::with_capacity_and_extents (line 187) ... ok
[INFO] [stdout] test src/lib.rs - SuperSlab<T>::with_capacity (line 235) ... ok
[INFO] [stdout] test src/lib.rs - SuperSlab<T>::remove (line 615) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "129617cc7c430676a8f6f752956bb88c26e96487fd8e57afa61d0f228819a3b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "129617cc7c430676a8f6f752956bb88c26e96487fd8e57afa61d0f228819a3b7", kill_on_drop: false }`
[INFO] [stdout] 129617cc7c430676a8f6f752956bb88c26e96487fd8e57afa61d0f228819a3b7