[INFO] fetching crate slab 0.4.12...
[INFO] testing slab-0.4.12 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739-1
[INFO] extracting crate slab 0.4.12 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate slab 0.4.12
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate slab 0.4.12
[INFO] tweaked toml for crates.io crate slab 0.4.12 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate slab 0.4.12 on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate slab 0.4.12 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_test v1.0.177
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bce3a850319a3ee79d27f923bf7461694132877d8ff16e47e3f6824238713663
[INFO] running `Command { std: "docker" "start" "-a" "bce3a850319a3ee79d27f923bf7461694132877d8ff16e47e3f6824238713663", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bce3a850319a3ee79d27f923bf7461694132877d8ff16e47e3f6824238713663", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bce3a850319a3ee79d27f923bf7461694132877d8ff16e47e3f6824238713663", kill_on_drop: false }`
[INFO] [stdout] bce3a850319a3ee79d27f923bf7461694132877d8ff16e47e3f6824238713663
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e460e3127ba80b6afd3d796e2b2a87c26a7ae0230e8b18cc81249c4f4a98899a
[INFO] running `Command { std: "docker" "start" "-a" "e460e3127ba80b6afd3d796e2b2a87c26a7ae0230e8b18cc81249c4f4a98899a", kill_on_drop: false }`
[INFO] [stderr]    Compiling slab v0.4.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "e460e3127ba80b6afd3d796e2b2a87c26a7ae0230e8b18cc81249c4f4a98899a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e460e3127ba80b6afd3d796e2b2a87c26a7ae0230e8b18cc81249c4f4a98899a", kill_on_drop: false }`
[INFO] [stdout] e460e3127ba80b6afd3d796e2b2a87c26a7ae0230e8b18cc81249c4f4a98899a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a552d6cea33b3b75cdad7d57880ca2b670ce8d2b84c83f17a8708828eee2aba
[INFO] running `Command { std: "docker" "start" "-a" "0a552d6cea33b3b75cdad7d57880ca2b670ce8d2b84c83f17a8708828eee2aba", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde_test v1.0.177
[INFO] [stderr]    Compiling slab v0.4.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 10.06s
[INFO] running `Command { std: "docker" "inspect" "0a552d6cea33b3b75cdad7d57880ca2b670ce8d2b84c83f17a8708828eee2aba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a552d6cea33b3b75cdad7d57880ca2b670ce8d2b84c83f17a8708828eee2aba", kill_on_drop: false }`
[INFO] [stdout] 0a552d6cea33b3b75cdad7d57880ca2b670ce8d2b84c83f17a8708828eee2aba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4baf5cfdfb56b95d1fb755e6f1903e7c63e4543ad1d5edbb8f7586749f3fcd1d
[INFO] running `Command { std: "docker" "start" "-a" "4baf5cfdfb56b95d1fb755e6f1903e7c63e4543ad1d5edbb8f7586749f3fcd1d", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/slab-c2ff12ce911fcbaa)
[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] [stderr]      Running tests/serde.rs (/opt/rustwide/target/debug/deps/serde-62716f8c1fea9441)
[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] [stderr]      Running tests/slab.rs (/opt/rustwide/target/debug/deps/slab-9ead27d10776fe3e)
[INFO] [stdout] 
[INFO] [stdout] running 47 tests
[INFO] [stdout] test clear ... ok
[INFO] [stdout] test clone_from ... ok
[INFO] [stdout] test compact_empty ... ok
[INFO] [stdout] test compact_doesnt_move_if_closure_errors ... ok
[INFO] [stdout] test compact_no_moves_needed ... ok
[INFO] [stdout] test compact_moves_successfully ... ok
[INFO] [stdout] test const_new ... ok
[INFO] [stdout] test drain_rev ... ok
[INFO] [stdout] test from_iterator_issue_100 ... ok
[INFO] [stdout] test from_iterator_sorted ... ok
[INFO] [stdout] test from_iterator_new_in_order ... ok
[INFO] [stdout] test from_iterator_unordered ... ok
[INFO] [stdout] test fully_consumed_drain ... ok
[INFO] [stdout] test get_disjoint_mut ... ok
[INFO] [stdout] test get_vacant_entry_without_using ... ok
[INFO] [stdout] test get_disjoint_mut_out_of_bounds_index_error ... ok
[INFO] [stdout] test insert_get_remove_many ... ok
[INFO] [stdout] test insert_get_remove_one ... ok
[INFO] [stdout] test insert_with_vacant_entry ... ok
[INFO] [stdout] test insert_get_many ... ok
[INFO] [stdout] test into_iter ... ok
[INFO] [stdout] test iter_mut ... ok
[INFO] [stdout] test key_of_layout_optimizable ... ok
[INFO] [stdout] test iter_mut_rev ... ok
[INFO] [stdout] test key_of_tagged ... ok
[INFO] [stdout] test partially_consumed_drain ... ok
[INFO] [stdout] test into_iter_rev ... ok
[INFO] [stdout] test iter ... ok
[INFO] [stdout] test key_of_zst ... ok
[INFO] [stdout] test reserve_does_not_allocate_if_available ... ok
[INFO] [stdout] test retain ... ok
[INFO] [stdout] test reserve_exact_does_not_allocate_if_available ... ok
[INFO] [stdout] test shrink_to_fit_empty ... ok
[INFO] [stdout] test iter_rev ... ok
[INFO] [stdout] test shrink_to_fit_no_vacant ... ok
[INFO] [stdout] test slab_get_mut ... ok
[INFO] [stdout] test shrink_to_fit_doesnt_move ... ok
[INFO] [stdout] test try_remove ... ok
[INFO] [stdout] test shrink_to_fit_doesnt_recreate_list_when_nothing_can_be_done ... ok
[INFO] [stdout] test compact_handles_closure_panic ... ok
[INFO] [stdout] test double_remove_panics - should panic ... ok
[INFO] [stdout] test invalid_get_panics - should panic ... ok
[INFO] [stdout] test invalid_remove_panics - should panic ... ok
[INFO] [stdout] test reserve_does_panic_with_capacity_overflow - should panic ... ok
[INFO] [stdout] test invalid_get_mut_panics - should panic ... ok
[INFO] [stdout] test reserve_exact_does_panic_with_capacity_overflow - should panic ... ok
[INFO] [stdout] test reserve_does_panic_with_capacity_overflow_bytes - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 47 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests slab
[INFO] [stdout] 
[INFO] [stdout] running 38 tests
[INFO] [stdout] test src/lib.rs - Slab<T>::get2_mut (line 778) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::capacity (line 333) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::clear (line 603) ... ok
[INFO] [stdout] test src/lib.rs - (line 58) ... ok
[INFO] [stdout] test src/lib.rs - (line 41) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get_unchecked (line 871) ... ok
[INFO] [stdout] test src/lib.rs - (line 79) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get2_unchecked_mut (line 934) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::compact (line 534) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get (line 724) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::compact (line 517) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::iter (line 663) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get_unchecked_mut (line 900) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T> (line 1341) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get_mut (line 746) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::insert (line 1023) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::iter_mut (line 694) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::drain (line 1237) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::key_of (line 985) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::contains (line 1174) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::is_empty (line 642) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::new (line 282) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::remove (line 1156) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::len (line 624) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::with_capacity (line 306) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::key_of (line 973) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::reserve (line 361) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::vacant_key (line 1045) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::retain (line 1197) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::reserve_exact (line 395) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::try_remove (line 1114) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::shrink_to_fit (line 422) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T> (line 1329) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::shrink_to_fit (line 437) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry<'a,T>::key (line 1459) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::vacant_entry (line 1069) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry (line 214) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry<'a,T>::insert (line 1429) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 38 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.89s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4baf5cfdfb56b95d1fb755e6f1903e7c63e4543ad1d5edbb8f7586749f3fcd1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4baf5cfdfb56b95d1fb755e6f1903e7c63e4543ad1d5edbb8f7586749f3fcd1d", kill_on_drop: false }`
[INFO] [stdout] 4baf5cfdfb56b95d1fb755e6f1903e7c63e4543ad1d5edbb8f7586749f3fcd1d
