[INFO] fetching crate slab 0.4.11...
[INFO] testing slab-0.4.11 against master#a1531335fe2807715fff569904d99602022643a7 for pr-145277
[INFO] extracting crate slab 0.4.11 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate slab 0.4.11
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate slab 0.4.11
[INFO] tweaked toml for crates.io crate slab 0.4.11 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate slab 0.4.11 on toolchain a1531335fe2807715fff569904d99602022643a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a1531335fe2807715fff569904d99602022643a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate slab 0.4.11 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" "+a1531335fe2807715fff569904d99602022643a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a1531335fe2807715fff569904d99602022643a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a0c578b4366e8bbfb32cbfa6a70b1631d85cd08577b4cb38962175b8de0fad5
[INFO] running `Command { std: "docker" "start" "-a" "4a0c578b4366e8bbfb32cbfa6a70b1631d85cd08577b4cb38962175b8de0fad5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a0c578b4366e8bbfb32cbfa6a70b1631d85cd08577b4cb38962175b8de0fad5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a0c578b4366e8bbfb32cbfa6a70b1631d85cd08577b4cb38962175b8de0fad5", kill_on_drop: false }`
[INFO] [stdout] 4a0c578b4366e8bbfb32cbfa6a70b1631d85cd08577b4cb38962175b8de0fad5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a1531335fe2807715fff569904d99602022643a7" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a07242b62599a50828983be08b382ff590913874d73191a111b0500f0304092
[INFO] running `Command { std: "docker" "start" "-a" "2a07242b62599a50828983be08b382ff590913874d73191a111b0500f0304092", kill_on_drop: false }`
[INFO] [stderr]    Compiling slab v0.4.11 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "2a07242b62599a50828983be08b382ff590913874d73191a111b0500f0304092", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a07242b62599a50828983be08b382ff590913874d73191a111b0500f0304092", kill_on_drop: false }`
[INFO] [stdout] 2a07242b62599a50828983be08b382ff590913874d73191a111b0500f0304092
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a1531335fe2807715fff569904d99602022643a7" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15aaa4445f797d5ee14a28a12459cc4be6a7e2153316516504abc965f7de6a91
[INFO] running `Command { std: "docker" "start" "-a" "15aaa4445f797d5ee14a28a12459cc4be6a7e2153316516504abc965f7de6a91", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling serde_test v1.0.177
[INFO] [stderr]    Compiling slab v0.4.11 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 9.03s
[INFO] running `Command { std: "docker" "inspect" "15aaa4445f797d5ee14a28a12459cc4be6a7e2153316516504abc965f7de6a91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15aaa4445f797d5ee14a28a12459cc4be6a7e2153316516504abc965f7de6a91", kill_on_drop: false }`
[INFO] [stdout] 15aaa4445f797d5ee14a28a12459cc4be6a7e2153316516504abc965f7de6a91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a1531335fe2807715fff569904d99602022643a7" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9bfc8d98a17849dcdf14c7e1964c9a04b85e995b4f579a6a008c3f6722e44bba
[INFO] running `Command { std: "docker" "start" "-a" "9bfc8d98a17849dcdf14c7e1964c9a04b85e995b4f579a6a008c3f6722e44bba", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/slab-8e020513e7af02c9)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running tests/serde.rs (/opt/rustwide/target/debug/deps/serde-257b65789fef530b)
[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 0 tests
[INFO] [stderr]      Running tests/slab.rs (/opt/rustwide/target/debug/deps/slab-e3c8d374d358a9ee)
[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 47 tests
[INFO] [stdout] test clear ... ok
[INFO] [stdout] test clone_from ... ok
[INFO] [stdout] test compact_empty ... ok
[INFO] [stdout] test compact_no_moves_needed ... ok
[INFO] [stdout] test compact_doesnt_move_if_closure_errors ... ok
[INFO] [stdout] test const_new ... ok
[INFO] [stdout] test compact_moves_successfully ... ok
[INFO] [stdout] test drain_rev ... ok
[INFO] [stdout] test from_iterator_sorted ... ok
[INFO] [stdout] test from_iterator_issue_100 ... ok
[INFO] [stdout] test from_iterator_unordered ... ok
[INFO] [stdout] test from_iterator_new_in_order ... ok
[INFO] [stdout] test fully_consumed_drain ... ok
[INFO] [stdout] test get_disjoint_mut_out_of_bounds_index_error ... ok
[INFO] [stdout] test get_disjoint_mut ... ok
[INFO] [stdout] test get_vacant_entry_without_using ... ok
[INFO] [stdout] test insert_get_many ... 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 into_iter ... ok
[INFO] [stdout] test iter ... ok
[INFO] [stdout] test iter_mut ... ok
[INFO] [stdout] test iter_rev ... ok
[INFO] [stdout] test iter_mut_rev ... ok
[INFO] [stdout] test reserve_does_not_allocate_if_available ... ok
[INFO] [stdout] test retain ... ok
[INFO] [stdout] test shrink_to_fit_doesnt_recreate_list_when_nothing_can_be_done ... ok
[INFO] [stdout] test partially_consumed_drain ... ok
[INFO] [stdout] test shrink_to_fit_no_vacant ... ok
[INFO] [stdout] test slab_get_mut ... ok
[INFO] [stdout] test shrink_to_fit_empty ... ok
[INFO] [stdout] test key_of_zst ... ok
[INFO] [stdout] test key_of_tagged ... ok
[INFO] [stdout] test key_of_layout_optimizable ... ok
[INFO] [stdout] test reserve_exact_does_not_allocate_if_available ... ok
[INFO] [stdout] test shrink_to_fit_doesnt_move ... ok
[INFO] [stdout] test try_remove ... ok
[INFO] [stdout] test into_iter_rev ... 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 invalid_get_mut_panics - should panic ... ok
[INFO] [stdout] test reserve_does_panic_with_capacity_overflow_bytes - should panic ... ok
[INFO] [stdout] test reserve_does_panic_with_capacity_overflow - should panic ... ok
[INFO] [stderr]    Doc-tests slab
[INFO] [stdout] test reserve_exact_does_panic_with_capacity_overflow - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 47 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 38 tests
[INFO] [stdout] test src/lib.rs - Slab<T> (line 1332) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::clear (line 596) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get2_mut (line 771) ... ok
[INFO] [stdout] test src/lib.rs - (line 51) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get_mut (line 739) ... ok
[INFO] [stdout] test src/lib.rs - (line 72) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::capacity (line 326) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::compact (line 510) ... ok
[INFO] [stdout] test src/lib.rs - (line 34) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::compact (line 527) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get_unchecked (line 864) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T> (line 1320) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get (line 717) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::contains (line 1165) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get2_unchecked_mut (line 927) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::insert (line 1016) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::get_unchecked_mut (line 893) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::len (line 617) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::drain (line 1228) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::is_empty (line 635) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::reserve_exact (line 388) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::iter_mut (line 687) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::key_of (line 966) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::reserve (line 354) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::retain (line 1188) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::key_of (line 978) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::shrink_to_fit (line 430) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::new (line 275) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::iter (line 656) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::remove (line 1147) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::shrink_to_fit (line 415) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::try_remove (line 1107) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::vacant_entry (line 1062) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry<'a,T>::insert (line 1420) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry (line 207) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::vacant_key (line 1038) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T>::with_capacity (line 299) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry<'a,T>::key (line 1450) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 38 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.84s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9bfc8d98a17849dcdf14c7e1964c9a04b85e995b4f579a6a008c3f6722e44bba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bfc8d98a17849dcdf14c7e1964c9a04b85e995b4f579a6a008c3f6722e44bba", kill_on_drop: false }`
[INFO] [stdout] 9bfc8d98a17849dcdf14c7e1964c9a04b85e995b4f579a6a008c3f6722e44bba