[INFO] fetching crate ckb-rust-std 1.0.0...
[INFO] testing ckb-rust-std-1.0.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate ckb-rust-std 1.0.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate ckb-rust-std 1.0.0
[INFO] finished tweaking crates.io crate ckb-rust-std 1.0.0
[INFO] tweaked toml for crates.io crate ckb-rust-std 1.0.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ckb-rust-std 1.0.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 620cb7d184aafb470ed396de8b08e2e1b45ee5e32686483aa1457f73a7f5a015
[INFO] running `Command { std: "docker" "start" "-a" "620cb7d184aafb470ed396de8b08e2e1b45ee5e32686483aa1457f73a7f5a015", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "620cb7d184aafb470ed396de8b08e2e1b45ee5e32686483aa1457f73a7f5a015", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "620cb7d184aafb470ed396de8b08e2e1b45ee5e32686483aa1457f73a7f5a015", kill_on_drop: false }`
[INFO] [stdout] 620cb7d184aafb470ed396de8b08e2e1b45ee5e32686483aa1457f73a7f5a015
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6fae0bc6921c4bbe9771a5e1f255abfc62b9887e6126aeb6bdd61fb61f647360
[INFO] running `Command { std: "docker" "start" "-a" "6fae0bc6921c4bbe9771a5e1f255abfc62b9887e6126aeb6bdd61fb61f647360", kill_on_drop: false }`
[INFO] [stderr]    Compiling ckb-rust-std v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `uninlined_slow_read_byte` is never used
[INFO] [stdout]     --> src/io/mod.rs:2540:4
[INFO] [stdout]      |
[INFO] [stdout] 2540 | fn uninlined_slow_read_byte<R: Read>(reader: &mut R) -> Option<Result<u8>> {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "6fae0bc6921c4bbe9771a5e1f255abfc62b9887e6126aeb6bdd61fb61f647360", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fae0bc6921c4bbe9771a5e1f255abfc62b9887e6126aeb6bdd61fb61f647360", kill_on_drop: false }`
[INFO] [stdout] 6fae0bc6921c4bbe9771a5e1f255abfc62b9887e6126aeb6bdd61fb61f647360
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4dff0af0de1477a9a05d966fb502e34fc2551ee6fa686d04b35f1558f688a7b7
[INFO] running `Command { std: "docker" "start" "-a" "4dff0af0de1477a9a05d966fb502e34fc2551ee6fa686d04b35f1558f688a7b7", kill_on_drop: false }`
[INFO] [stdout] warning: function `uninlined_slow_read_byte` is never used
[INFO] [stdout]     --> src/io/mod.rs:2540:4
[INFO] [stdout]      |
[INFO] [stdout] 2540 | fn uninlined_slow_read_byte<R: Read>(reader: &mut R) -> Option<Result<u8>> {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ckb-rust-std v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `uninlined_slow_read_byte` is never used
[INFO] [stdout]     --> src/io/mod.rs:2540:4
[INFO] [stdout]      |
[INFO] [stdout] 2540 | fn uninlined_slow_read_byte<R: Read>(reader: &mut R) -> Option<Result<u8>> {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.68s
[INFO] running `Command { std: "docker" "inspect" "4dff0af0de1477a9a05d966fb502e34fc2551ee6fa686d04b35f1558f688a7b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dff0af0de1477a9a05d966fb502e34fc2551ee6fa686d04b35f1558f688a7b7", kill_on_drop: false }`
[INFO] [stdout] 4dff0af0de1477a9a05d966fb502e34fc2551ee6fa686d04b35f1558f688a7b7
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1eef54a07b654ab713e632fd9c9d564e4f2c1e8f6f63735619279c0e2f43b609
[INFO] running `Command { std: "docker" "start" "-a" "1eef54a07b654ab713e632fd9c9d564e4f2c1e8f6f63735619279c0e2f43b609", kill_on_drop: false }`
[INFO] [stderr] warning: function `uninlined_slow_read_byte` is never used
[INFO] [stderr]     --> src/io/mod.rs:2540:4
[INFO] [stderr]      |
[INFO] [stderr] 2540 | fn uninlined_slow_read_byte<R: Read>(reader: &mut R) -> Option<Result<u8>> {
[INFO] [stderr]      |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `ckb-rust-std` (lib) generated 1 warning
[INFO] [stderr] warning: `ckb-rust-std` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ckb_rust_std-e060512a24da22c0)
[INFO] [stdout] 
[INFO] [stdout] running 88 tests
[INFO] [stdout] test io::buffered::tests::bufwriter_aliasing ... ok
[INFO] [stdout] test io::buffered::tests::line_buffer_write0_error ... ok
[INFO] [stdout] test io::buffered::tests::line_buffer_write0_normal ... ok
[INFO] [stdout] test io::buffered::tests::line_long_tail_not_flushed ... ok
[INFO] [stdout] test io::buffered::tests::line_write_all ... ok
[INFO] [stdout] test io::buffered::tests::bufreader_full_initialize ... ok
[INFO] [stdout] test io::buffered::tests::line_write_all_error ... ok
[INFO] [stdout] test io::buffered::tests::erroneous_flush_retried ... ok
[INFO] [stdout] test io::buffered::tests::partial_multiline_buffering ... ok
[INFO] [stdout] test io::buffered::tests::long_line_flushed ... ok
[INFO] [stdout] test io::buffered::tests::test_buffered_reader ... ok
[INFO] [stdout] test io::buffered::tests::test_buffered_reader_invalidated_after_read ... ok
[INFO] [stdout] test io::buffered::tests::test_buffered_reader_invalidated_after_seek ... ok
[INFO] [stdout] test io::buffered::tests::test_buffered_reader_read_buf ... ok
[INFO] [stdout] test io::buffered::tests::test_buffered_reader_seek_relative ... ok
[INFO] [stdout] test io::buffered::tests::test_buffered_reader_seek_underflow ... ok
[INFO] [stdout] test io::buffered::tests::test_buffered_reader_seek_underflow_discard_buffer_between_seeks ... ok
[INFO] [stdout] test io::buffered::tests::test_line_buffer ... ok
[INFO] [stdout] test io::buffered::tests::test_lines ... ok
[INFO] [stdout] test io::buffered::tests::test_buffered_reader_stream_position ... ok
[INFO] [stdout] test io::buffered::tests::test_read_line ... ok
[INFO] [stdout] test io::buffered::tests::test_buffered_writer_inner_flushes ... ok
[INFO] [stdout] test io::buffered::tests::test_short_reads ... ok
[INFO] [stdout] test io::buffered::tests::test_read_until ... ok
[INFO] [stdout] test io::cursor::tests::read_to_end ... ok
[INFO] [stdout] test io::buffered::tests::single_formatted_write ... ok
[INFO] [stdout] test io::buffered::tests::partial_line_buffered_after_line_write ... ok
[INFO] [stdout] test io::buffered::tests::test_buffered_reader_read_to_string_consumes_buffer ... ok
[INFO] [stdout] test io::buffered::tests::test_buffered_reader_seek ... ok
[INFO] [stdout] test io::buffered::tests::test_buffered_reader_read_to_end_consumes_buffer ... ok
[INFO] [stdout] test io::buffered::tests::test_buffered_writer ... ok
[INFO] [stdout] test io::cursor::tests::seek_before_0 ... ok
[INFO] [stdout] test io::cursor::tests::seek_past_i64 ... ok
[INFO] [stdout] test io::cursor::tests::test_mem_mut_writer ... ok
[INFO] [stdout] test io::cursor::tests::test_array_writer ... ok
[INFO] [stdout] test io::cursor::tests::test_box_slice_writer ... ok
[INFO] [stdout] test io::cursor::tests::test_mem_writer ... ok
[INFO] [stdout] test io::cursor::tests::test_boxed_slice_reader ... ok
[INFO] [stdout] test io::cursor::tests::test_buf_reader ... ok
[INFO] [stdout] test io::cursor::tests::test_buf_writer_error ... ok
[INFO] [stdout] test io::cursor::tests::test_buf_writer ... ok
[INFO] [stdout] test io::cursor::tests::seek_past_end ... ok
[INFO] [stdout] test io::buffered::tests::partial_write_buffers_line ... ok
[INFO] [stdout] test io::cursor::tests::test_buf_writer_seek ... ok
[INFO] [stdout] test io::cursor::tests::test_slice_reader ... ok
[INFO] [stdout] test io::cursor::tests::test_vec_writer ... ok
[INFO] [stdout] test io::tests::buf_read_has_data_left ... ok
[INFO] [stdout] test io::cursor::tests::vec_seek_before_0 ... ok
[INFO] [stdout] test io::cursor::tests::test_seekable_mem_writer ... ok
[INFO] [stdout] test io::cursor::tests::test_read_exact ... ok
[INFO] [stdout] test io::cursor::tests::test_mem_reader ... ok
[INFO] [stdout] test io::cursor::tests::test_eq ... ok
[INFO] [stdout] test io::cursor::tests::test_mem_writer_preallocated ... ok
[INFO] [stdout] test io::cursor::tests::test_partial_eq ... ok
[INFO] [stdout] test io::tests::chain_splitted_char ... ok
[INFO] [stdout] test io::buffered::tests::test_buffered_writer_seek ... ok
[INFO] [stdout] test io::tests::chain_zero_length_read_is_not_eof ... ok
[INFO] [stdout] test io::tests::lines ... ok
[INFO] [stdout] test io::tests::cursor_read_exact_eof ... ok
[INFO] [stdout] test io::tests::read_buf_exact ... ok
[INFO] [stdout] test io::tests::read_exact ... ok
[INFO] [stdout] test io::tests::read_buf_full_read ... ok
[INFO] [stdout] test io::tests::read_line ... ok
[INFO] [stdout] test io::tests::read_until ... ok
[INFO] [stdout] test io::tests::read_exact_slice ... ok
[INFO] [stdout] test io::tests::seek_len ... ok
[INFO] [stdout] test io::tests::slice_read_exact_eof ... ok
[INFO] [stdout] test io::tests::seek_position ... ok
[INFO] [stdout] test io::tests::split ... ok
[INFO] [stdout] test io::tests::take_eof ... ok
[INFO] [stdout] test io::tests::skip_until ... ok
[INFO] [stdout] test io::tests::test_read_to_end_capacity ... ok
[INFO] [stdout] test io::tests::try_oom_error ... ok
[INFO] [stdout] test io::util::tests::empty_sinks ... ok
[INFO] [stdout] test io::util::tests::repeat_repeats ... ok
[INFO] [stdout] test io::util::tests::sink_sinks ... ok
[INFO] [stdout] test io::util::tests::take_some_bytes ... ok
[INFO] [stdout] test io::util::tests::empty_reads ... ok
[INFO] [stdout] test io::util::tests::empty_seeks ... ok
[INFO] [stdout] test io::cursor::tests::vec_seek_past_end ... ok
[INFO] [stdout] test io::tests::chain_bufread ... ok
[INFO] [stdout] test io::buffered::tests::partial_multiline_buffering_without_full_line ... ok
[INFO] [stdout] test io::tests::read_to_string ... ok
[INFO] [stdout] test io::buffered::tests::dont_panic_in_drop_on_panicked_flush - should panic ... ok
[INFO] [stdout] test io::tests::borrowed_cursor_advance_overflow - should panic ... ok
[INFO] [stdout] test io::tests::read_buf_broken_read - should panic ... ok
[INFO] [stdout] test io::tests::test_take_wrong_length - should panic ... ok
[INFO] [stdout] test io::tests::read_to_end ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 88 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ckb_rust_std
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 54) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1eef54a07b654ab713e632fd9c9d564e4f2c1e8f6f63735619279c0e2f43b609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1eef54a07b654ab713e632fd9c9d564e4f2c1e8f6f63735619279c0e2f43b609", kill_on_drop: false }`
[INFO] [stdout] 1eef54a07b654ab713e632fd9c9d564e4f2c1e8f6f63735619279c0e2f43b609