[INFO] fetching crate prefix-arena 0.3.1...
[INFO] testing prefix-arena-0.3.1 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate prefix-arena 0.3.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate prefix-arena 0.3.1
[INFO] finished tweaking crates.io crate prefix-arena 0.3.1
[INFO] tweaked toml for crates.io crate prefix-arena 0.3.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate prefix-arena 0.3.1 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate prefix-arena 0.3.1 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:19:12
[INFO] [stderr]    |
[INFO] [stderr] 19 | homepage = "https://github.com/kdimonych/prefix-arena"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 25 | repository = "https://github.com/kdimonych/prefix-arena"
[INFO] [stderr]    |              -------------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `prefix-arena` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] bdf23f4baed6aec3f787feeb74903eaee8a995a495ea8d4635fedc7f6d99c95b
[INFO] running `Command { std: "docker" "start" "bdf23f4baed6aec3f787feeb74903eaee8a995a495ea8d4635fedc7f6d99c95b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bdf23f4baed6aec3f787feeb74903eaee8a995a495ea8d4635fedc7f6d99c95b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "bdf23f4baed6aec3f787feeb74903eaee8a995a495ea8d4635fedc7f6d99c95b" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bdf23f4baed6aec3f787feeb74903eaee8a995a495ea8d4635fedc7f6d99c95b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "bdf23f4baed6aec3f787feeb74903eaee8a995a495ea8d4635fedc7f6d99c95b" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:19:12
[INFO] [stderr]    |
[INFO] [stderr] 19 | homepage = "https://github.com/kdimonych/prefix-arena"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 25 | repository = "https://github.com/kdimonych/prefix-arena"
[INFO] [stderr]    |              -------------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `prefix-arena` (manifest) generated 1 warning
[INFO] [stderr]    Compiling prefix-arena v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "bdf23f4baed6aec3f787feeb74903eaee8a995a495ea8d4635fedc7f6d99c95b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "bdf23f4baed6aec3f787feeb74903eaee8a995a495ea8d4635fedc7f6d99c95b" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:19:12
[INFO] [stderr]    |
[INFO] [stderr] 19 | homepage = "https://github.com/kdimonych/prefix-arena"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 25 | repository = "https://github.com/kdimonych/prefix-arena"
[INFO] [stderr]    |              -------------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `prefix-arena` (manifest) generated 1 warning
[INFO] [stderr]    Compiling prefix-arena v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "bdf23f4baed6aec3f787feeb74903eaee8a995a495ea8d4635fedc7f6d99c95b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "bdf23f4baed6aec3f787feeb74903eaee8a995a495ea8d4635fedc7f6d99c95b" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:19:12
[INFO] [stderr]    |
[INFO] [stderr] 19 | homepage = "https://github.com/kdimonych/prefix-arena"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 25 | repository = "https://github.com/kdimonych/prefix-arena"
[INFO] [stderr]    |              -------------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `prefix-arena` (manifest) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/prefix-arena/c1cdd9824d5cca2c/out/prefix_arena-c1cdd9824d5cca2c)
[INFO] [stdout] 
[INFO] [stdout] running 74 tests
[INFO] [stdout] test prefix_arena::tests::test_created_object_can_borrow_the_another ... ok
[INFO] [stdout] test prefix_arena::tests::test_allocate_box ... ok
[INFO] [stdout] test prefix_arena::tests::test_from_slice ... ok
[INFO] [stdout] test prefix_arena::tests::test_from_uninitialized_slice ... ok
[INFO] [stdout] test prefix_arena::tests::test_empty_buffer ... ok
[INFO] [stdout] test prefix_arena::tests::test_init_from_initialized ... ok
[INFO] [stdout] test prefix_arena::tests::test_multiple_take_prefixes ... ok
[INFO] [stdout] test prefix_arena::tests::test_from_array_for_temporary_buffer ... ok
[INFO] [stdout] test prefix_arena::tests::test_init_from_uninitialized ... ok
[INFO] [stdout] test prefix_arena::tests::test_no_borrowing_glue ... ok
[INFO] [stdout] test prefix_arena::tests::test_from_array ... ok
[INFO] [stdout] test prefix_arena::tests::test_prefix_arena_init_then_acquire_with_checked_invalid_len_preserves_arena ... ok
[INFO] [stdout] test prefix_arena::tests::subsequent_take_remaining ... ok
[INFO] [stdout] test prefix_arena::tests::test_empty_buffer_for_temporary_buffer ... ok
[INFO] [stdout] test prefix_arena::tests::test_reborrow_when_passed_to_function ... ok
[INFO] [stdout] test prefix_arena::tests::test_take_front_partial ... ok
[INFO] [stdout] test prefix_arena::tests::test_take_front_zero ... ok
[INFO] [stdout] test prefix_arena::tests::test_no_borrowing_glue_with_temp_buffer_detach ... ok
[INFO] [stdout] test prefix_arena::tests::test_prefix_arena_init_then_acquire_with ... ok
[INFO] [stdout] test prefix_arena::tests::test_take_prefix_all ... ok
[INFO] [stdout] test prefix_arena::tests::test_take_prefix_checked_too_large_preserves_arena ... ok
[INFO] [stdout] test prefix_arena::tests::test_prefix_arena_init_then_acquire_with_error_preserves_len ... ok
[INFO] [stdout] test prefix_arena::tests::test_take_remaining ... ok
[INFO] [stdout] test prefix_arena::tests::test_temp_buffer_as_mut_slice ... ok
[INFO] [stdout] test prefix_arena::tests::test_take_prefix_with_align_returns_alligned_buffer ... ok
[INFO] [stdout] test prefix_arena::tests::test_reborrow ... ok
[INFO] [stdout] test prefix_arena::tests::test_temp_buffer_as_mut_with_init ... ok
[INFO] [stdout] test prefix_arena::tests::test_temp_buffer_as_mut_with_init_checked ... ok
[INFO] [stdout] test prefix_arena::tests::test_temp_buffer_as_mut_slice_unchecked ... ok
[INFO] [stdout] test prefix_arena::tests::test_temp_buffer_as_mut_with_init_checked_invalid_len ... ok
[INFO] [stdout] test prefix_arena::tests::test_prefix_arena_init_then_acquire_with_checked ... ok
[INFO] [stdout] test prefix_arena::tests::test_temp_buffer_as_slice_unchecked ... ok
[INFO] [stdout] test prefix_arena::tests::test_temp_buffer_as_slice ... ok
[INFO] [stdout] test prefix_arena::tests::test_temp_buffer_init_then_acquire_with ... ok
[INFO] [stdout] test prefix_arena::tests::test_temp_buffer_init_then_acquire_with_checked ... ok
[INFO] [stdout] test prefix_arena::tests::test_temp_buffer_init_then_acquire_with_checked_error_preserves_arena ... ok
[INFO] [stdout] test prefix_arena::tests::test_temp_buffer_init_then_acquire_with_checked_invalid_len_preserves_arena ... ok
[INFO] [stdout] test prefix_arena::tests::test_temp_buffer_init_then_acquire_with_error_preserves_arena ... ok
[INFO] [stdout] test prefix_arena::tests::test_try_allocate_box ... ok
[INFO] [stdout] test prefix_arena::tests::test_try_allocate_box_failure ... ok
[INFO] [stdout] test prefix_arena::tests::test_try_take_prefix ... ok
[INFO] [stdout] test prefix_arena::tests::test_try_take_prefix_all ... ok
[INFO] [stdout] test prefix_arena::tests::test_try_take_prefix_too_large ... ok
[INFO] [stdout] test prefix_arena::tests::test_temp_buffer_take_prefix_shrinks_underlying_arena ... ok
[INFO] [stdout] test prefix_arena::tests::test_try_take_prefix_with_align_all ... ok
[INFO] [stdout] test prefix_arena::tests::test_try_take_prefix_with_align_returns_alligned_buffer ... ok
[INFO] [stdout] test prefix_arena::tests::test_try_take_prefix_with_layout ... ok
[INFO] [stdout] test prefix_arena::tests::test_try_take_prefix_with_too_large_layout ... ok
[INFO] [stdout] test prefix_arena::tests::test_usage_in_a_loop ... ok
[INFO] [stdout] test staging_buffer::tests::test_append_from_slice_partial ... ok
[INFO] [stdout] test staging_buffer::tests::test_as_mut_slice ... ok
[INFO] [stdout] test staging_buffer::tests::test_append_from_slice ... ok
[INFO] [stdout] test staging_buffer::tests::test_as_slice_lifetime ... ok
[INFO] [stdout] test staging_buffer::tests::test_basic_push ... ok
[INFO] [stdout] test staging_buffer::tests::test_clear ... ok
[INFO] [stdout] test staging_buffer::tests::test_clear_and_reuse ... ok
[INFO] [stdout] test staging_buffer::tests::test_capacity_overflow ... ok
[INFO] [stdout] test staging_buffer::tests::test_extend_at_exact_capacity ... ok
[INFO] [stdout] test staging_buffer::tests::test_extend_empty_slice ... ok
[INFO] [stdout] test staging_buffer::tests::test_empty_buffer ... ok
[INFO] [stdout] test staging_buffer::tests::test_fill_remaining_empty_slice ... ok
[INFO] [stdout] test staging_buffer::tests::test_extend_error_preserves_written_prefix ... ok
[INFO] [stdout] test staging_buffer::tests::test_into_written_slice_empty_keeps_arena_unchanged ... ok
[INFO] [stdout] test staging_buffer::tests::test_into_written_slice_advances_arena ... ok
[INFO] [stdout] test staging_buffer::tests::test_multiple_extension ... ok
[INFO] [stdout] test staging_buffer::tests::test_push_until_full ... ok
[INFO] [stdout] test staging_buffer::tests::test_single_byte_buffer ... ok
[INFO] [stdout] test staging_buffer::tests::test_take_used ... ok
[INFO] [stdout] test prefix_arena::tests::test_allocate_box_failure - should panic ... ok
[INFO] [stdout] test prefix_arena::tests::test_take_prefix_too_large - should panic ... ok
[INFO] [stdout] test prefix_arena::tests::test_take_prefix_with_too_large_layout - should panic ... ok
[INFO] [stdout] test prefix_arena::tests::test_temp_buffer_as_mut_with_init_panics_on_invalid_len - should panic ... ok
[INFO] [stdout] test prefix_arena::tests::test_prefix_arena_init_then_acquire_with_panics_on_invalid_len - should panic ... ok
[INFO] [stdout] test prefix_arena::tests::test_temp_buffer_init_then_acquire_with_panics_on_invalid_len - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 74 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests prefix_arena
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/../README.md - (line 111) ... ok
[INFO] [stdout] test src/../README.md - (line 41) ... ok
[INFO] [stdout] test src/../README.md - (line 99) ... ok
[INFO] [stdout] test src/../README.md - (line 59) ... ok
[INFO] [stdout] test src/../README.md - (line 77) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.48s; merged doctests compilation took 0.44s
[INFO] running `Command { std: "docker" "inspect" "bdf23f4baed6aec3f787feeb74903eaee8a995a495ea8d4635fedc7f6d99c95b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdf23f4baed6aec3f787feeb74903eaee8a995a495ea8d4635fedc7f6d99c95b", kill_on_drop: false }`
[INFO] [stdout] bdf23f4baed6aec3f787feeb74903eaee8a995a495ea8d4635fedc7f6d99c95b
