[INFO] fetching crate tokio-io 0.1.13...
[INFO] testing tokio-io-0.1.13 against 1.55.0 for beta-1.56-1
[INFO] extracting crate tokio-io 0.1.13 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate tokio-io 0.1.13 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tokio-io 0.1.13
[INFO] finished tweaking crates.io crate tokio-io 0.1.13
[INFO] tweaked toml for crates.io crate tokio-io 0.1.13 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.55.0" "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] 1ba34292a2b80d1bbbccd487e02c07188cfe05741fb4492ebcdad383f1157b3a
[INFO] running `Command { std: "docker" "start" "-a" "1ba34292a2b80d1bbbccd487e02c07188cfe05741fb4492ebcdad383f1157b3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ba34292a2b80d1bbbccd487e02c07188cfe05741fb4492ebcdad383f1157b3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ba34292a2b80d1bbbccd487e02c07188cfe05741fb4492ebcdad383f1157b3a", kill_on_drop: false }`
[INFO] [stdout] 1ba34292a2b80d1bbbccd487e02c07188cfe05741fb4492ebcdad383f1157b3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34abab8fc946cf67facb911c61a417d3a628a38a1bd0ddbe2e07e8f6d3735f10
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "34abab8fc946cf67facb911c61a417d3a628a38a1bd0ddbe2e07e8f6d3735f10", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio-io v0.1.13 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this attribute can only be applied at the crate level
[INFO] [stdout]   --> src/_tokio_codec/mod.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![doc(hidden, html_root_url = "https://docs.rs/tokio-codec/0.1.0")]
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(invalid_doc_attributes)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout]    = note: read https://doc.rust-lang.org/nightly/rustdoc/the-doc-attribute.html#at-the-crate-level for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "34abab8fc946cf67facb911c61a417d3a628a38a1bd0ddbe2e07e8f6d3735f10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34abab8fc946cf67facb911c61a417d3a628a38a1bd0ddbe2e07e8f6d3735f10", kill_on_drop: false }`
[INFO] [stdout] 34abab8fc946cf67facb911c61a417d3a628a38a1bd0ddbe2e07e8f6d3735f10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d72c253d5b78569f6df2f326ba2d71c0e88b2e13a7c215f946c82ae5d451949
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7d72c253d5b78569f6df2f326ba2d71c0e88b2e13a7c215f946c82ae5d451949", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio-io v0.1.13 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this attribute can only be applied at the crate level
[INFO] [stdout]   --> src/_tokio_codec/mod.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![doc(hidden, html_root_url = "https://docs.rs/tokio-codec/0.1.0")]
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(invalid_doc_attributes)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout]    = note: read https://doc.rust-lang.org/nightly/rustdoc/the-doc-attribute.html#at-the-crate-level for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this attribute can only be applied at the crate level
[INFO] [stdout]   --> src/_tokio_codec/mod.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![doc(hidden, html_root_url = "https://docs.rs/tokio-codec/0.1.0")]
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(invalid_doc_attributes)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout]    = note: read https://doc.rust-lang.org/nightly/rustdoc/the-doc-attribute.html#at-the-crate-level for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.97s
[INFO] running `Command { std: "docker" "inspect" "7d72c253d5b78569f6df2f326ba2d71c0e88b2e13a7c215f946c82ae5d451949", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d72c253d5b78569f6df2f326ba2d71c0e88b2e13a7c215f946c82ae5d451949", kill_on_drop: false }`
[INFO] [stdout] 7d72c253d5b78569f6df2f326ba2d71c0e88b2e13a7c215f946c82ae5d451949
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.55.0" "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] 181e5f023e9788e90c92a4996a738e4cf8acf62408f5aeeaa0bf685f0a7c63ab
[INFO] running `Command { std: "docker" "start" "-a" "181e5f023e9788e90c92a4996a738e4cf8acf62408f5aeeaa0bf685f0a7c63ab", kill_on_drop: false }`
[INFO] [stderr] warning: this attribute can only be applied at the crate level
[INFO] [stderr]   --> src/_tokio_codec/mod.rs:14:16
[INFO] [stderr]    |
[INFO] [stderr] 14 | #![doc(hidden, html_root_url = "https://docs.rs/tokio-codec/0.1.0")]
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(invalid_doc_attributes)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stderr]    = note: read https://doc.rust-lang.org/nightly/rustdoc/the-doc-attribute.html#at-the-crate-level for more information
[INFO] [stderr] 
[INFO] [stderr] warning: `tokio-io` (lib) generated 1 warning
[INFO] [stderr] warning: `tokio-io` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tokio_io-0f97e7d7157e1137)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test split::tests::split_readhalf_translate_wouldblock_to_not_ready ... ok
[INFO] [stdout] test split::tests::split_writehalf_translate_wouldblock_to_not_ready ... ok
[INFO] [stdout] test split::tests::unsplit_ok ... ok
[INFO] [stdout] test split::tests::unsplit_err2 - should panic ... ok
[INFO] [stdout] test split::tests::unsplit_err3 - should panic ... ok
[INFO] [stderr]      Running tests/async_read.rs (/opt/rustwide/target/debug/deps/async_read-ad8ccb476059ef53)
[INFO] [stdout] test split::tests::unsplit_err1 - should panic ... ok
[INFO] [stdout] test split::tests::unsplit_err4 - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/length_delimited.rs (/opt/rustwide/target/debug/deps/length_delimited-6f4987d0296439d6)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test read_buf_error ... ok
[INFO] [stdout] test read_buf_no_capacity ... ok
[INFO] [stdout] test read_buf_no_uninitialized ... ok
[INFO] [stdout] test read_buf_success ... ok
[INFO] [stdout] test read_buf_translate_wouldblock_to_not_ready ... ok
[INFO] [stdout] test read_buf_uninitialized_ok ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 31 tests
[INFO] [stdout] test read_empty_io_yields_nothing ... ok
[INFO] [stdout] test read_header_offset ... ok
[INFO] [stdout] test read_one_byte_length_field ... ok
[INFO] [stdout] test read_single_multi_frame_one_packet_length_includes_head ... ok
[INFO] [stdout] test read_single_frame_one_packet ... ok
[INFO] [stdout] test read_single_multi_frame_one_packet ... ok
[INFO] [stdout] test read_single_frame_multi_packet ... ok
[INFO] [stdout] test read_incomplete_head ... ok
[INFO] [stdout] test read_incomplete_head_multi ... ok
[INFO] [stdout] test write_single_frame_length_adjusted ... ok
[INFO] [stdout] test read_incomplete_payload ... ok
[INFO] [stdout] test write_single_frame_little_endian ... ok
[INFO] [stdout] test write_single_frame_with_short_length_field ... ok
[INFO] [stdout] test read_multi_frame_multi_packet_wait ... ok
[INFO] [stdout] test read_max_frame_len ... ok
[INFO] [stdout] test read_update_max_frame_len_at_rest ... ok
[INFO] [stdout] test read_single_frame_multi_packet_wait ... ok
[INFO] [stdout] test write_max_frame_len ... ok
[INFO] [stdout] test write_nothing_yields_nothing ... ok
[INFO] [stdout] test read_update_max_frame_len_in_flight ... ok
[INFO] [stdout] test write_update_max_frame_len_at_rest ... ok
[INFO] [stdout] test write_single_multi_frame_multi_packet ... ok
[INFO] [stdout] test write_single_multi_frame_one_packet ... ok
[INFO] [stdout] test write_zero ... ok
[INFO] [stdout] test read_single_frame_one_packet_little_endian ... ok
[INFO] [stdout] test read_single_frame_one_packet_native_endian ... ok
[INFO] [stdout] test read_single_multi_frame_one_packet_skip_none_adjusted ... ok
[INFO] [stdout] test read_multi_frame_multi_packet ... ok
[INFO] [stdout] test write_single_frame_one_packet ... ok
[INFO] [stdout] test write_single_frame_would_block ... ok
[INFO] [stdout] test write_update_max_frame_len_in_flight ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 31 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tokio-io
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test src/codec/mod.rs - codec::length_delimited (line 76) ... ok
[INFO] [stdout] test src/codec/mod.rs - codec::length_delimited (line 257) ... ok
[INFO] [stdout] test src/length_delimited.rs - length_delimited::Builder::little_endian (line 666) ... ok
[INFO] [stdout] test src/codec/mod.rs - codec::length_delimited (line 117) ... ok
[INFO] [stdout] test src/length_delimited.rs - length_delimited::Builder::big_endian (line 643) ... ok
[INFO] [stdout] test src/length_delimited.rs - length_delimited::Builder::native_endian (line 689) ... ok
[INFO] [stdout] test src/length_delimited.rs - length_delimited::Builder::length_field_length (line 745) ... ok
[INFO] [stdout] test src/codec/mod.rs - codec::length_delimited (line 53) ... ok
[INFO] [stdout] test src/length_delimited.rs - length_delimited::Builder::length_adjustment (line 787) ... ok
[INFO] [stdout] test src/codec/mod.rs - codec::length_delimited (line 302) ... ok
[INFO] [stdout] test src/length_delimited.rs - length_delimited::Builder::max_frame_length (line 722) ... ok
[INFO] [stdout] test src/codec/mod.rs - codec::length_delimited (line 347) ... ok
[INFO] [stdout] test src/codec/mod.rs - codec::length_delimited (line 181) ... ok
[INFO] [stdout] test src/length_delimited.rs - length_delimited::Builder::length_field_offset (line 767) ... ok
[INFO] [stdout] test src/codec/mod.rs - codec::length_delimited (line 150) ... ok
[INFO] [stdout] test src/codec/mod.rs - codec::length_delimited (line 214) ... ok
[INFO] [stdout] test src/length_delimited.rs - length_delimited::Builder::new (line 600) ... ok
[INFO] [stdout] test src/length_delimited.rs - length_delimited::Builder::new_framed (line 891) ... ok
[INFO] [stdout] test src/length_delimited.rs - length_delimited::Builder::new_read (line 829) ... ok
[INFO] [stdout] test src/length_delimited.rs - length_delimited::Builder::new_write (line 861) ... ok
[INFO] [stdout] test src/length_delimited.rs - length_delimited::Builder::num_skip (line 810) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.06s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "181e5f023e9788e90c92a4996a738e4cf8acf62408f5aeeaa0bf685f0a7c63ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "181e5f023e9788e90c92a4996a738e4cf8acf62408f5aeeaa0bf685f0a7c63ab", kill_on_drop: false }`
[INFO] [stdout] 181e5f023e9788e90c92a4996a738e4cf8acf62408f5aeeaa0bf685f0a7c63ab