[INFO] fetching crate no_std_io2 0.9.1...
[INFO] testing no_std_io2-0.9.1 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8
[INFO] extracting crate no_std_io2 0.9.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate no_std_io2 0.9.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate no_std_io2 0.9.1
[INFO] tweaked toml for crates.io crate no_std_io2 0.9.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate no_std_io2 0.9.1 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate no_std_io2 0.9.1 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b8f39682c9f47fd6c8d914e2eb7ed7a3aac9b4fb1e359dfa2383e8f02fdeca8
[INFO] running `Command { std: "docker" "start" "-a" "1b8f39682c9f47fd6c8d914e2eb7ed7a3aac9b4fb1e359dfa2383e8f02fdeca8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b8f39682c9f47fd6c8d914e2eb7ed7a3aac9b4fb1e359dfa2383e8f02fdeca8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b8f39682c9f47fd6c8d914e2eb7ed7a3aac9b4fb1e359dfa2383e8f02fdeca8", kill_on_drop: false }`
[INFO] [stdout] 1b8f39682c9f47fd6c8d914e2eb7ed7a3aac9b4fb1e359dfa2383e8f02fdeca8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c63005a9941690c3a20209f230a91b63d19fe9097c94f727c6dff1ec80e50fa
[INFO] running `Command { std: "docker" "start" "-a" "9c63005a9941690c3a20209f230a91b63d19fe9097c94f727c6dff1ec80e50fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling no_std_io2 v0.9.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "9c63005a9941690c3a20209f230a91b63d19fe9097c94f727c6dff1ec80e50fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c63005a9941690c3a20209f230a91b63d19fe9097c94f727c6dff1ec80e50fa", kill_on_drop: false }`
[INFO] [stdout] 9c63005a9941690c3a20209f230a91b63d19fe9097c94f727c6dff1ec80e50fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33ee34e117920658c9647010996b3ce42c2c78ea48bd5932af8e9719eed7556d
[INFO] running `Command { std: "docker" "start" "-a" "33ee34e117920658c9647010996b3ce42c2c78ea48bd5932af8e9719eed7556d", kill_on_drop: false }`
[INFO] [stderr]    Compiling no_std_io2 v0.9.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/io/cursor.rs:304:9
[INFO] [stdout]     |
[INFO] [stdout] 304 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ExampleSliceReader` is never constructed
[INFO] [stdout]    --> tests/tests.rs:286:8
[INFO] [stdout]     |
[INFO] [stdout] 286 | struct ExampleSliceReader<'a> {
[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 0.50s
[INFO] running `Command { std: "docker" "inspect" "33ee34e117920658c9647010996b3ce42c2c78ea48bd5932af8e9719eed7556d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33ee34e117920658c9647010996b3ce42c2c78ea48bd5932af8e9719eed7556d", kill_on_drop: false }`
[INFO] [stdout] 33ee34e117920658c9647010996b3ce42c2c78ea48bd5932af8e9719eed7556d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 874063efb2b05fe79ce828cff93ce5e1a570e4f4ddf7fefa0c8d920b6c160c65
[INFO] running `Command { std: "docker" "start" "-a" "874063efb2b05fe79ce828cff93ce5e1a570e4f4ddf7fefa0c8d920b6c160c65", kill_on_drop: false }`
[INFO] [stderr] warning: struct `ExampleSliceReader` is never constructed
[INFO] [stderr]    --> tests/tests.rs:286:8
[INFO] [stderr]     |
[INFO] [stderr] 286 | struct ExampleSliceReader<'a> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `no_std_io2` (test "tests") generated 1 warning
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]    --> src/io/cursor.rs:304:9
[INFO] [stderr]     |
[INFO] [stderr] 304 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `no_std_io2` (lib test) generated 1 warning (run `cargo fix --lib -p no_std_io2 --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/no_std_io2-27c5dfbc3e3b12aa)
[INFO] [stderr]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-df2e61904ffe755c)
[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] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test read_exact ... ok
[INFO] [stdout] test chain_bufread ... ok
[INFO] [stdout] test read_exact_slice ... ok
[INFO] [stdout] test take_eof ... ok
[INFO] [stdout] test test_writer_read_from_one_buf ... ok
[INFO] [stderr]    Doc-tests no_std_io2
[INFO] [stdout] test test_io_error_other ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 63 tests
[INFO] [stdout] test src/io/buffered.rs - io::buffered::BufReader (line 30) ... ignored
[INFO] [stdout] test src/io/buffered.rs - io::buffered::BufReader<R,S>::get_mut (line 107) ... ignored
[INFO] [stdout] test src/io/buffered.rs - io::buffered::BufReader<R,S>::get_ref (line 85) ... ignored
[INFO] [stdout] test src/io/buffered.rs - io::buffered::BufReader<R,S>::into_inner (line 179) ... ignored
[INFO] [stdout] test src/io/buffered.rs - io::buffered::BufReader<R,S>::new (line 58) ... ignored
[INFO] [stdout] test src/io/buffered.rs - io::buffered::BufWriter (line 341) ... ignored
[INFO] [stdout] test src/io/buffered.rs - io::buffered::BufWriter<W,S>::buffer (line 549) ... ignored
[INFO] [stdout] test src/io/buffered.rs - io::buffered::BufWriter<W,S>::capacity (line 566) ... ignored
[INFO] [stdout] test src/io/buffered.rs - io::buffered::BufWriter<W,S>::get_mut (line 532) ... ignored
[INFO] [stdout] test src/io/buffered.rs - io::buffered::BufWriter<W,S>::get_ref (line 513) ... ignored
[INFO] [stdout] test src/io/buffered.rs - io::buffered::BufWriter<W,S>::into_inner (line 591) ... ignored
[INFO] [stdout] test src/io/buffered.rs - io::buffered::BufWriter<W,S>::new (line 407) ... ignored
[INFO] [stdout] test src/io/buffered.rs - io::buffered::IntoInnerError (line 377) ... ignored
[INFO] [stdout] test src/io/buffered.rs - io::buffered::IntoInnerError<W>::error (line 689) ... ignored
[INFO] [stdout] test src/io/buffered.rs - io::buffered::IntoInnerError<W>::into_inner (line 722) ... ignored
[INFO] [stdout] test src/io/buffered.rs - io::buffered::LineWriter (line 950) ... ignored
[INFO] [stdout] test src/io/buffered.rs - io::buffered::LineWriter<W,S>::get_mut (line 1044) ... ignored
[INFO] [stdout] test src/io/buffered.rs - io::buffered::LineWriter<W,S>::get_ref (line 1021) ... ignored
[INFO] [stdout] test src/io/buffered.rs - io::buffered::LineWriter<W,S>::into_inner (line 1071) ... ignored
[INFO] [stdout] test src/io/buffered.rs - io::buffered::LineWriter<W,S>::new (line 1001) ... ignored
[INFO] [stdout] test src/io/buffered.rs - io::buffered::BufReader<R,S>::capacity (line 154) - compile ... ok
[INFO] [stdout] test src/io/cursor.rs - io::cursor::Cursor (line 25) ... ok
[INFO] [stdout] test src/io/buffered.rs - io::buffered::BufReader<R,S>::buffer (line 131) - compile ... ok
[INFO] [stdout] test src/io/buffered.rs - io::buffered::BufWriter (line 325) - compile ... ok
[INFO] [stdout] test src/io/cursor.rs - io::cursor::Cursor<T>::into_inner (line 97) ... ok
[INFO] [stdout] test src/io/cursor.rs - io::cursor::Cursor<T>::get_ref (line 114) ... ok
[INFO] [stdout] test src/io/cursor.rs - io::cursor::Cursor<T>::get_mut (line 134) ... ok
[INFO] [stdout] test src/io/cursor.rs - io::cursor::Cursor<T>::new (line 82) ... ok
[INFO] [stdout] test src/io/error.rs - io::error::Error::get_ref (line 420) ... ok
[INFO] [stdout] test src/io/cursor.rs - io::cursor::Cursor<T>::position (line 151) ... ok
[INFO] [stdout] test src/io/cursor.rs - io::cursor::Cursor<T>::set_position (line 173) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::BufRead (line 937) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::BufRead (line 957) - compile ... ok
[INFO] [stdout] test src/io/error.rs - io::error::Result (line 28) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::BufRead::fill_buf (line 997) - compile ... ok
[INFO] [stdout] test src/io/error.rs - io::error::Error::from (line 255) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Chain<T,U>::into_inner (line 1054) - compile ... ok
[INFO] [stdout] test src/io/error.rs - io::error::Error::into_inner (line 505) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Chain<T,U>::get_mut (line 1102) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Read (line 107) - compile ... ok
[INFO] [stdout] test src/io/error.rs - io::error::Error::new (line 301) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Read::by_ref (line 384) - compile ... ok
[INFO] [stdout] test src/io/error.rs - io::error::Error::kind (line 585) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Read::read (line 208) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Read::chain (line 462) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Read (line 134) - compile ... ok
[INFO] [stdout] test src/io/error.rs - io::error::Error::other (line 357) ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Take<T>::into_inner (line 1246) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Chain<T,U>::get_ref (line 1076) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Take<T>::limit (line 1196) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Read::bytes (line 429) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Read::read_exact (line 337) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Write (line 592) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Take<T>::get_mut (line 1298) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Take<T>::get_ref (line 1270) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Seek (line 846) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Read::take (line 506) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Write::write (line 645) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Write::write_all (line 706) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Write::write_fmt (line 754) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Take<T>::set_limit (line 1222) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Write::by_ref (line 812) - compile ... ok
[INFO] [stdout] test src/io/traits.rs - io::traits::Write::flush (line 671) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 43 passed; 0 failed; 20 ignored; 0 measured; 0 filtered out; finished in 1.90s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "874063efb2b05fe79ce828cff93ce5e1a570e4f4ddf7fefa0c8d920b6c160c65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "874063efb2b05fe79ce828cff93ce5e1a570e4f4ddf7fefa0c8d920b6c160c65", kill_on_drop: false }`
[INFO] [stdout] 874063efb2b05fe79ce828cff93ce5e1a570e4f4ddf7fefa0c8d920b6c160c65