[INFO] fetching crate fixed-slice-vec 0.7.1...
[INFO] testing fixed-slice-vec-0.7.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate fixed-slice-vec 0.7.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate fixed-slice-vec 0.7.1 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fixed-slice-vec 0.7.1
[INFO] finished tweaking crates.io crate fixed-slice-vec 0.7.1
[INFO] tweaked toml for crates.io crate fixed-slice-vec 0.7.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rusty-fork v0.2.2
[INFO] [stderr]   Downloaded proptest v0.9.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", 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] 9985008e9608dadd7d012da48ddb93bae8d2320667278f0cfef591a072119623
[INFO] running `Command { std: "docker" "start" "-a" "9985008e9608dadd7d012da48ddb93bae8d2320667278f0cfef591a072119623", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9985008e9608dadd7d012da48ddb93bae8d2320667278f0cfef591a072119623", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9985008e9608dadd7d012da48ddb93bae8d2320667278f0cfef591a072119623", kill_on_drop: false }`
[INFO] [stdout] 9985008e9608dadd7d012da48ddb93bae8d2320667278f0cfef591a072119623
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-01-01" "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] 9a7016361894bf6db25f7fbc5b413b3890f5777f2ee768d24453aaec563c3f8e
[INFO] running `Command { std: "docker" "start" "-a" "9a7016361894bf6db25f7fbc5b413b3890f5777f2ee768d24453aaec563c3f8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling fixed-slice-vec v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "9a7016361894bf6db25f7fbc5b413b3890f5777f2ee768d24453aaec563c3f8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a7016361894bf6db25f7fbc5b413b3890f5777f2ee768d24453aaec563c3f8e", kill_on_drop: false }`
[INFO] [stdout] 9a7016361894bf6db25f7fbc5b413b3890f5777f2ee768d24453aaec563c3f8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-01-01" "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] d226c7e4a9d986234e5271db4dc6143661c13f2e386b6ef288e3fa747ab53e33
[INFO] running `Command { std: "docker" "start" "-a" "d226c7e4a9d986234e5271db4dc6143661c13f2e386b6ef288e3fa747ab53e33", kill_on_drop: false }`
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling rusty-fork v0.2.2
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling proptest v0.9.6
[INFO] [stderr]    Compiling fixed-slice-vec v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 25.83s
[INFO] running `Command { std: "docker" "inspect" "d226c7e4a9d986234e5271db4dc6143661c13f2e386b6ef288e3fa747ab53e33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d226c7e4a9d986234e5271db4dc6143661c13f2e386b6ef288e3fa747ab53e33", kill_on_drop: false }`
[INFO] [stdout] d226c7e4a9d986234e5271db4dc6143661c13f2e386b6ef288e3fa747ab53e33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-01-01" "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] e858d9fb0ab077bdf97e11aaa6721b951fb25b4dfb2ec9a7512d22bee48e1ae1
[INFO] running `Command { std: "docker" "start" "-a" "e858d9fb0ab077bdf97e11aaa6721b951fb25b4dfb2ec9a7512d22bee48e1ae1", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/fixed_slice_vec-1f15913ce08c0847
[INFO] [stdout] 
[INFO] [stdout] running 36 tests
[INFO] [stdout] test single::tests::happy_path_embed_uninit ... ok
[INFO] [stdout] test single::tests::happy_path_split_uninit ... ok
[INFO] [stdout] test single::tests::split_uninit_from_bytes_empty ... ok
[INFO] [stdout] test single::tests::split_uninit_from_bytes_observe_leftovers ... ok
[INFO] [stdout] test single::tests::split_uninit_from_uninit_bytes_empty ... ok
[INFO] [stdout] test single::tests::split_uninit_not_enough_space_detected ... ok
[INFO] [stdout] test single::tests::zero_sized_types_not_permitted ... ok
[INFO] [stdout] test single::tests::embed_uninit_not_enough_space_detected ... ok
[INFO] [stdout] test vec::tests::align_captures_suffix_and_prefix ... ok
[INFO] [stdout] test single::tests::embed_not_enough_space_detected ... ok
[INFO] [stdout] test vec::tests::as_mut_ptr_allows_changes_to_internal_content ... ok
[INFO] [stdout] test vec::tests::as_ptr_reveals_expected_internal_content ... ok
[INFO] [stdout] test vec::tests::equality_sanity_checks ... ok
[INFO] [stdout] test vec::tests::from_uninit_bytes_empty_slice ... ok
[INFO] [stdout] test single::tests::happy_path_split ... ok
[INFO] [stdout] test vec::tests::from_uninit_bytes_larger_than_item_slice ... ok
[INFO] [stdout] test vec::tests::from_uninit_bytes_smaller_than_item_slice ... ok
[INFO] [stdout] test vec::tests::happy_path_from_bytes ... ok
[INFO] [stdout] test single::tests::happy_path_embed ... ok
[INFO] [stdout] test vec::tests::manual_swap_remove_inside_range ... ok
[INFO] [stdout] test vec::tests::extend_with_not_enough_room ... ok
[INFO] [stdout] test vec::tests::borrow_ish_sanity_checks ... ok
[INFO] [stdout] test vec::tests::comparison_sanity_checks ... ok
[INFO] [stdout] test vec::tests::from_uninit ... ok
[INFO] [stdout] test vec::tests::extend_with_exactly_enough_room ... ok
[INFO] [stdout] test vec::tests::extend_with_more_than_enough_room ... ok
[INFO] [stdout] test vec::tests::manual_truncate ... ok
[INFO] [stdout] test vec::tests::manual_try_remove ... ok
[INFO] [stdout] test vec::tests::try_extend_with_more_than_enough_room ... ok
[INFO] [stdout] test vec::tests::try_extend_with_not_enough_room ... ok
[INFO] [stdout] test single::tests::split_uninit_from_uninit_bytes_observe_leftovers ... ok
[INFO] [stdout] test single::tests::split_not_enough_space_detected ... ok
[INFO] [stdout] test vec::tests::manual_try_swap_remove ... ok
[INFO] [stdout] test vec::tests::try_extend_with_exactly_enough_room ... ok
[INFO] [stdout] test vec::tests::manual_swap_remove_empty ... ok
[INFO] [stdout] test vec::tests::manual_swap_remove_outside_range ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 36 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/comparability_tests-801faec696e81383
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test drops_items_replaced_via_mut_slice ... ok
[INFO] [stdout] test drops_items_when_dropped ... ok
[INFO] [stdout] test drops_items_when_truncate ... ok
[INFO] [stdout] test drops_items_when_clear ... ok
[INFO] [stdout] test vec_like_operations::compare_vec_like_operations_against_array_vec ... ok
[INFO] [stdout] test vec_like_operations::compare_vec_like_operations_against_std ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 9.42s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/std_required_tests-e3c3a21bef28f9a1
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test formatting_successful ... ok
[INFO] [stdout] test hashing_successful ... ok
[INFO] [stdout] test manual_try_swap_remove ... ok
[INFO] [stdout] test manual_push ... ok
[INFO] [stdout] test manual_remove ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fixed-slice-vec
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/vec.rs - vec::FixedSliceVec::as_ptr (line 178) ... ok
[INFO] [stdout] test src/lib.rs - (line 31) ... ok
[INFO] [stdout] test src/vec.rs - vec::FixedSliceVec::align_from_uninit_bytes (line 110) ... ok
[INFO] [stdout] test src/vec.rs - vec::FixedSliceVec::from_bytes (line 45) ... ok
[INFO] [stdout] test src/vec.rs - vec::FixedSliceVec::align_from_bytes (line 82) ... ok
[INFO] [stdout] test src/vec.rs - vec::FixedSliceVec::as_mut_ptr (line 142) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.21s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e858d9fb0ab077bdf97e11aaa6721b951fb25b4dfb2ec9a7512d22bee48e1ae1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e858d9fb0ab077bdf97e11aaa6721b951fb25b4dfb2ec9a7512d22bee48e1ae1", kill_on_drop: false }`
[INFO] [stdout] e858d9fb0ab077bdf97e11aaa6721b951fb25b4dfb2ec9a7512d22bee48e1ae1