[INFO] fetching crate slab 0.4.3...
[INFO] testing slab-0.4.3 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate slab 0.4.3 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate slab 0.4.3 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slab 0.4.3
[INFO] finished tweaking crates.io crate slab 0.4.3
[INFO] tweaked toml for crates.io crate slab 0.4.3 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d23279dab05756c5d0f5efe34e5b9be82cf99f6ddb97da3f8c1d9c1b27e066b7
[INFO] running `Command { std: "docker" "start" "-a" "d23279dab05756c5d0f5efe34e5b9be82cf99f6ddb97da3f8c1d9c1b27e066b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d23279dab05756c5d0f5efe34e5b9be82cf99f6ddb97da3f8c1d9c1b27e066b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d23279dab05756c5d0f5efe34e5b9be82cf99f6ddb97da3f8c1d9c1b27e066b7", kill_on_drop: false }`
[INFO] [stdout] d23279dab05756c5d0f5efe34e5b9be82cf99f6ddb97da3f8c1d9c1b27e066b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 223be944fa358814c11fca3256a317e317cc64555d98c1c60c56cc02bd657d04
[INFO] running `Command { std: "docker" "start" "-a" "223be944fa358814c11fca3256a317e317cc64555d98c1c60c56cc02bd657d04", kill_on_drop: false }`
[INFO] [stderr]    Compiling slab v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "223be944fa358814c11fca3256a317e317cc64555d98c1c60c56cc02bd657d04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "223be944fa358814c11fca3256a317e317cc64555d98c1c60c56cc02bd657d04", kill_on_drop: false }`
[INFO] [stdout] 223be944fa358814c11fca3256a317e317cc64555d98c1c60c56cc02bd657d04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8c631e24d6f3196c9cc1c6f086595340abab5bc026aeba69ac76f153de1af9e
[INFO] running `Command { std: "docker" "start" "-a" "e8c631e24d6f3196c9cc1c6f086595340abab5bc026aeba69ac76f153de1af9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling serde_test v1.0.126
[INFO] [stderr]    Compiling slab v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 16.96s
[INFO] running `Command { std: "docker" "inspect" "e8c631e24d6f3196c9cc1c6f086595340abab5bc026aeba69ac76f153de1af9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8c631e24d6f3196c9cc1c6f086595340abab5bc026aeba69ac76f153de1af9e", kill_on_drop: false }`
[INFO] [stdout] e8c631e24d6f3196c9cc1c6f086595340abab5bc026aeba69ac76f153de1af9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 68d603f1eb91bf5611eca2b62b70e793d5762f2fc43ad5c38396a0e903d3297f
[INFO] running `Command { std: "docker" "start" "-a" "68d603f1eb91bf5611eca2b62b70e793d5762f2fc43ad5c38396a0e903d3297f", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/slab-2b6279578059020e)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/serde.rs (/opt/rustwide/target/debug/deps/serde-ce03d1606fe3109e)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]      Running tests/slab.rs (/opt/rustwide/target/debug/deps/slab-57bc72b207db50de)
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 40 tests
[INFO] [stdout] test clear ... ok
[INFO] [stdout] test compact_doesnt_move_if_closure_errors ... ok
[INFO] [stdout] test compact_empty ... ok
[INFO] [stdout] test compact_moves_successfully ... ok
[INFO] [stdout] test compact_no_moves_needed ... ok
[INFO] [stdout] test drain_rev ... ok
[INFO] [stdout] test fully_consumed_drain ... ok
[INFO] [stdout] test insert_get_remove_many ... ok
[INFO] [stdout] test from_iterator_unordered ... ok
[INFO] [stdout] test into_iter_rev ... ok
[INFO] [stdout] test get_vacant_entry_without_using ... ok
[INFO] [stdout] test iter ... ok
[INFO] [stdout] test insert_with_vacant_entry ... ok
[INFO] [stdout] test insert_get_remove_one ... ok
[INFO] [stdout] test into_iter ... ok
[INFO] [stdout] test reserve_does_not_allocate_if_available ... ok
[INFO] [stdout] test shrink_to_fit_doesnt_recreate_list_when_nothing_can_be_done ... ok
[INFO] [stdout] test slab_get_mut ... ok
[INFO] [stdout] test iter_rev ... ok
[INFO] [stdout] test key_of_tagged ... ok
[INFO] [stdout] test iter_mut ... ok
[INFO] [stdout] test key_of_layout_optimizable ... ok
[INFO] [stdout] test shrink_to_fit_no_vacant ... ok
[INFO] [stdout] test shrink_to_fit_empty ... ok
[INFO] [stdout] test retain ... ok
[INFO] [stdout] test partially_consumed_drain ... ok
[INFO] [stdout] test shrink_to_fit_doesnt_move ... ok
[INFO] [stdout] test key_of_zst ... ok
[INFO] [stdout] test insert_get_many ... ok
[INFO] [stdout] test iter_mut_rev ... ok
[INFO] [stdout] test from_iterator_new_in_order ... ok
[INFO] [stdout] test from_iterator_sorted ... ok
[INFO] [stdout] test invalid_remove_panics ... ok
[INFO] [stdout] test reserve_exact_does_not_allocate_if_available ... ok
[INFO] [stdout] test compact_handles_closure_panic ... ok
[INFO] [stdout] test double_remove_panics ... ok
[INFO] [stderr]    Doc-tests slab
[INFO] [stdout] test invalid_get_panics ... ok
[INFO] [stdout] test invalid_get_mut_panics ... ok
[INFO] [stdout] test reserve_does_panic_with_capacity_overflow ... ok
[INFO] [stdout] test reserve_exact_does_panic_with_capacity_overflow ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 40 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 36 tests
[INFO] [stdout] test src/lib.rs - Slab<T>::reserve (line 288) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::clear (line 526) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::vacant_entry (line 911) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::insert (line 889) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::iter_mut (line 617) ... ok
[INFO] [stdout] test src/lib.rs - (line 25) ... ok
[INFO] [stdout] test src/lib.rs - (line 42) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get2_unchecked_mut (line 803) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::key_of (line 852) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T> (line 1144) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::compact (line 440) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::shrink_to_fit (line 364) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get (line 647) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::new (line 213) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::retain (line 1018) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::len (line 547) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get_unchecked_mut (line 771) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::remove (line 959) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::reserve_exact (line 322) ... ok
[INFO] [stdout] test src/lib.rs - (line 63) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::contains (line 992) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::shrink_to_fit (line 349) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::with_capacity (line 233) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry (line 157) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::compact (line 457) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get2_mut (line 697) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get_unchecked (line 744) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::drain (line 1058) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::iter (line 586) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry::key (line 1299) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::is_empty (line 565) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get_mut (line 669) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::key_of (line 840) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T> (line 1156) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::capacity (line 260) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry::insert (line 1269) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 36 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.88s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "68d603f1eb91bf5611eca2b62b70e793d5762f2fc43ad5c38396a0e903d3297f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68d603f1eb91bf5611eca2b62b70e793d5762f2fc43ad5c38396a0e903d3297f", kill_on_drop: false }`
[INFO] [stdout] 68d603f1eb91bf5611eca2b62b70e793d5762f2fc43ad5c38396a0e903d3297f