[INFO] fetching crate io-streams 0.6.0...
[INFO] testing io-streams-0.6.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate io-streams 0.6.0 into /workspace/builds/worker-51/source
[INFO] validating manifest of crates.io crate io-streams 0.6.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate io-streams 0.6.0
[INFO] finished tweaking crates.io crate io-streams 0.6.0
[INFO] tweaked toml for crates.io crate io-streams 0.6.0 written to /workspace/builds/worker-51/source/Cargo.toml
[INFO] crate crates.io crate io-streams 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded duplex v0.6.0
[INFO] [stderr]   Downloaded layered-io v0.7.0
[INFO] [stderr]   Downloaded fs-set-times v0.7.1
[INFO] [stderr]   Downloaded utf8-io v0.5.0
[INFO] [stderr]   Downloaded ambient-authority v0.0.1
[INFO] [stderr]   Downloaded terminal-io v0.6.0
[INFO] [stderr]   Downloaded socketpair v0.9.1
[INFO] [stderr]   Downloaded rsix v0.18.0
[INFO] [stderr]   Downloaded cap-primitives v0.17.0
[INFO] [stderr]   Downloaded cap-fs-ext v0.17.0
[INFO] [stderr]   Downloaded system-interface v0.11.0
[INFO] [stderr]   Downloaded winx v0.28.0
[INFO] [stderr]   Downloaded duplex v0.5.0
[INFO] [stderr]   Downloaded cap-tempfile v0.17.0
[INFO] [stderr]   Downloaded cap-std v0.17.0
[INFO] [stderr]   Downloaded char-device v0.6.1
[INFO] [stderr]   Downloaded linux-raw-sys v0.0.19
[INFO] [stderr]   Downloaded unsafe-io v0.7.1
[INFO] [stderr]   Downloaded terminfo v0.7.3
[INFO] [stderr]   Downloaded unsafe-io v0.8.2
[INFO] [stderr]   Downloaded io-lifetimes v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7b4dd8ed3b5a2907f735bba4e45981a30bb56d64b52fe32f03d45c0edd80d4d
[INFO] running `Command { std: "docker" "start" "-a" "e7b4dd8ed3b5a2907f735bba4e45981a30bb56d64b52fe32f03d45c0edd80d4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7b4dd8ed3b5a2907f735bba4e45981a30bb56d64b52fe32f03d45c0edd80d4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7b4dd8ed3b5a2907f735bba4e45981a30bb56d64b52fe32f03d45c0edd80d4d", kill_on_drop: false }`
[INFO] [stdout] e7b4dd8ed3b5a2907f735bba4e45981a30bb56d64b52fe32f03d45c0edd80d4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be494b28063eaba5e2007f1bcff78b649668ed2dba32f6bd093bb872682ad3e1
[INFO] running `Command { std: "docker" "start" "-a" "be494b28063eaba5e2007f1bcff78b649668ed2dba32f6bd093bb872682ad3e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling linux-raw-sys v0.0.19
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling io-lifetimes v0.2.3
[INFO] [stderr]    Compiling rsix v0.18.0
[INFO] [stderr]    Compiling unsafe-io v0.8.2
[INFO] [stderr]    Compiling char-device v0.6.1
[INFO] [stderr]    Compiling socketpair v0.9.1
[INFO] [stderr]    Compiling system-interface v0.11.0
[INFO] [stderr]    Compiling io-streams v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling os_pipe v0.9.2
[INFO] [stderr]    Compiling duplex v0.6.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.14s
[INFO] running `Command { std: "docker" "inspect" "be494b28063eaba5e2007f1bcff78b649668ed2dba32f6bd093bb872682ad3e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be494b28063eaba5e2007f1bcff78b649668ed2dba32f6bd093bb872682ad3e1", kill_on_drop: false }`
[INFO] [stdout] be494b28063eaba5e2007f1bcff78b649668ed2dba32f6bd093bb872682ad3e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 444aecbddc983224003fbbcb85361eb385e1531f469a7e36f38d8e83356c2a81
[INFO] running `Command { std: "docker" "start" "-a" "444aecbddc983224003fbbcb85361eb385e1531f469a7e36f38d8e83356c2a81", kill_on_drop: false }`
[INFO] [stderr]    Compiling maybe-owned v0.3.4
[INFO] [stderr]    Compiling ambient-authority v0.0.1
[INFO] [stderr]    Compiling ipnet v2.3.1
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]    Compiling cap-primitives v0.17.0
[INFO] [stderr]    Compiling cap-std v0.17.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling fs-set-times v0.7.1
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling cap-tempfile v0.17.0
[INFO] [stderr]    Compiling io-streams v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.10s
[INFO] running `Command { std: "docker" "inspect" "444aecbddc983224003fbbcb85361eb385e1531f469a7e36f38d8e83356c2a81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "444aecbddc983224003fbbcb85361eb385e1531f469a7e36f38d8e83356c2a81", kill_on_drop: false }`
[INFO] [stdout] 444aecbddc983224003fbbcb85361eb385e1531f469a7e36f38d8e83356c2a81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bb294ea64bfd432836d089c37019d7dc9c328ebf0ff5cb8c355b2ca97bb43dfb
[INFO] running `Command { std: "docker" "start" "-a" "bb294ea64bfd432836d089c37019d7dc9c328ebf0ff5cb8c355b2ca97bb43dfb", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/io_streams-3351f3e54d9e646a)
[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/buffered.rs (/opt/rustwide/target/debug/deps/buffered-6cf6ab05dd9046f3)
[INFO] [stdout] 
[INFO] [stdout] running 25 tests
[INFO] [stdout] test line_buffer_write0_error ... ok
[INFO] [stdout] test erroneous_flush_retried ... ok
[INFO] [stdout] test line_long_tail_not_flushed ... ok
[INFO] [stdout] test line_vectored_partial_and_errors ... ok
[INFO] [stdout] test line_write_all_error ... ok
[INFO] [stdout] test line_vectored ... ok
[INFO] [stdout] test line_write_all ... ok
[INFO] [stdout] test line_buffer_write0_normal ... ok
[INFO] [stdout] test test_buffered_reader_invalidated_after_read ... ok
[INFO] [stdout] test single_formatted_write ... ok
[INFO] [stdout] test test_lines ... ok
[INFO] [stdout] test test_line_buffer ... ok
[INFO] [stdout] test long_line_flushed ... ok
[INFO] [stdout] test test_read_line ... ok
[INFO] [stdout] test partial_multiline_buffering ... ok
[INFO] [stdout] test test_buffered_writer ... ok
[INFO] [stdout] test test_buffered_reader ... ok
[INFO] [stdout] test test_buffered_writer_inner_flushes ... ok
[INFO] [stdout] test partial_write_buffers_line ... ok
[INFO] [stdout] test partial_multiline_buffering_without_full_line ... ok
[INFO] [stdout] test test_short_reads ... ok
[INFO] [stdout] test partial_line_buffered_after_line_write ... ok
[INFO] [stdout] test test_read_until ... ok
[INFO] [stdout] test dont_panic_in_drop_on_panicked_flush - should panic ... ok
[INFO] [stdout] test panic_in_write_doesnt_flush_in_drop ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 25 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stderr]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-3a65f53dca8b72ed)
[INFO] [stdout] test test_null_output ... ok
[INFO] [stdout] test test_null_duplex ... ok
[INFO] [stdout] test test_null_input ... ok
[INFO] [stdout] test test_copy ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests io-streams
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test src/buffered/buf_duplexer.rs - buffered::buf_duplexer::BufDuplexer<Inner>::writer_buffer (line 222) - compile ... ok
[INFO] [stdout] test src/buffered/buf_duplexer.rs - buffered::buf_duplexer::BufDuplexer<Inner>::into_inner (line 324) - compile ... ok
[INFO] [stdout] test src/buffered/buf_duplexer.rs - buffered::buf_duplexer::BufDuplexer<Inner>::new (line 145) - compile ... ok
[INFO] [stdout] test src/buffered/buf_duplexer.rs - buffered::buf_duplexer::BufDuplexer<Inner>::get_mut (line 204) - compile ... ok
[INFO] [stdout] test src/buffered/buf_duplexer.rs - buffered::buf_duplexer::BufDuplexer (line 83) - compile ... ok
[INFO] [stdout] test src/buffered/buf_duplexer.rs - buffered::buf_duplexer::BufDuplexer<Inner>::reader_buffer (line 245) - compile ... ok
[INFO] [stdout] test src/buffered/buf_duplexer.rs - buffered::buf_duplexer::BufDuplexer<Inner>::reader_capacity (line 292) - compile ... ok
[INFO] [stdout] test src/buffered/buf_reader_line_writer.rs - buffered::buf_reader_line_writer::BufReaderLineWriter<Inner>::get_ref (line 160) - compile ... ok
[INFO] [stdout] test src/buffered/buf_reader_line_writer.rs - buffered::buf_reader_line_writer::BufReaderLineWriter<Inner>::new (line 113) - compile ... ok
[INFO] [stdout] test src/buffered/mod.rs - buffered::IntoInnerError<W>::into_inner (line 109) - compile ... ok
[INFO] [stdout] test src/buffered/buf_reader_line_writer.rs - buffered::buf_reader_line_writer::BufReaderLineWriter (line 49) - compile ... ok
[INFO] [stdout] test src/buffered/buf_duplexer.rs - buffered::buf_duplexer::BufDuplexer<Inner>::writer_capacity (line 271) - compile ... ok
[INFO] [stdout] test src/buffered/mod.rs - buffered::IntoInnerError (line 31) - compile ... ok
[INFO] [stdout] test src/buffered/buf_reader_line_writer.rs - buffered::buf_reader_line_writer::BufReaderLineWriter<Inner>::get_mut (line 184) - compile ... ok
[INFO] [stdout] test src/buffered/buf_reader_line_writer.rs - buffered::buf_reader_line_writer::BufReaderLineWriter<Inner>::into_inner (line 213) - compile ... ok
[INFO] [stdout] test src/buffered/mod.rs - buffered::IntoInnerError<W>::error (line 74) - compile ... ok
[INFO] [stdout] test src/buffered/buf_duplexer.rs - buffered::buf_duplexer::BufDuplexer (line 68) - compile ... ok
[INFO] [stdout] test src/buffered/buf_duplexer.rs - buffered::buf_duplexer::BufDuplexer (line 100) - compile ... ok
[INFO] [stdout] test src/buffered/buf_duplexer.rs - buffered::buf_duplexer::BufDuplexer<Inner>::get_ref (line 184) - compile ... ok
[INFO] [stdout] test src/buffered/buf_duplexer.rs - buffered::buf_duplexer::BufDuplexer<Inner>::with_capacities (line 166) - compile ... ok
[INFO] [stdout] test src/buffered/buf_reader_line_writer.rs - buffered::buf_reader_line_writer::BufReaderLineWriter<Inner>::with_capacities (line 135) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.35s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bb294ea64bfd432836d089c37019d7dc9c328ebf0ff5cb8c355b2ca97bb43dfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb294ea64bfd432836d089c37019d7dc9c328ebf0ff5cb8c355b2ca97bb43dfb", kill_on_drop: false }`
[INFO] [stdout] bb294ea64bfd432836d089c37019d7dc9c328ebf0ff5cb8c355b2ca97bb43dfb