[INFO] fetching crate io-pipe 0.7.3...
[INFO] testing io-pipe-0.7.3 against beta-2026-01-20 for beta-1.94-1
[INFO] extracting crate io-pipe 0.7.3 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate io-pipe 0.7.3
[INFO] finished tweaking crates.io crate io-pipe 0.7.3
[INFO] tweaked toml for crates.io crate io-pipe 0.7.3 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate io-pipe 0.7.3 on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate io-pipe 0.7.3 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" "+beta-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 86e7e528c04a9c22269a84168628956cace4ef7e12ae505eee4e9b9eebfd8124
[INFO] running `Command { std: "docker" "start" "-a" "86e7e528c04a9c22269a84168628956cace4ef7e12ae505eee4e9b9eebfd8124", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86e7e528c04a9c22269a84168628956cace4ef7e12ae505eee4e9b9eebfd8124", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86e7e528c04a9c22269a84168628956cace4ef7e12ae505eee4e9b9eebfd8124", kill_on_drop: false }`
[INFO] [stdout] 86e7e528c04a9c22269a84168628956cace4ef7e12ae505eee4e9b9eebfd8124
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7184272059a93a93cd34aae6b67d689e8cff29f76b92b63c1a3d613669cf5461
[INFO] running `Command { std: "docker" "start" "-a" "7184272059a93a93cd34aae6b67d689e8cff29f76b92b63c1a3d613669cf5461", kill_on_drop: false }`
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling loole v0.4.1
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling io-pipe v0.7.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.89s
[INFO] running `Command { std: "docker" "inspect" "7184272059a93a93cd34aae6b67d689e8cff29f76b92b63c1a3d613669cf5461", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7184272059a93a93cd34aae6b67d689e8cff29f76b92b63c1a3d613669cf5461", kill_on_drop: false }`
[INFO] [stdout] 7184272059a93a93cd34aae6b67d689e8cff29f76b92b63c1a3d613669cf5461
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6ad57786b020485c8f77a7ac04509795a461a40f4eaabc4b47411eb323c250a
[INFO] running `Command { std: "docker" "start" "-a" "a6ad57786b020485c8f77a7ac04509795a461a40f4eaabc4b47411eb323c250a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling serde v1.0.205
[INFO] [stderr]    Compiling serde_json v1.0.122
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling half v2.4.1
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling clap_lex v0.7.2
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling anstyle v1.0.8
[INFO] [stderr]    Compiling regex-syntax v0.8.4
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling plotters-backend v0.3.6
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling plotters-svg v0.3.6
[INFO] [stderr]    Compiling clap_builder v4.5.13
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling plotters v0.3.6
[INFO] [stderr]    Compiling loole v0.4.1
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling oorandom v11.1.4
[INFO] [stderr]    Compiling io-pipe v0.7.3 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling regex-automata v0.4.7
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling criterion-plot v0.6.0
[INFO] [stderr]    Compiling clap v4.5.13
[INFO] [stderr]    Compiling regex v1.10.6
[INFO] [stderr]    Compiling serde_derive v1.0.205
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling futures-executor v0.3.30
[INFO] [stderr]    Compiling futures v0.3.30
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.7.0
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 47.45s
[INFO] running `Command { std: "docker" "inspect" "a6ad57786b020485c8f77a7ac04509795a461a40f4eaabc4b47411eb323c250a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6ad57786b020485c8f77a7ac04509795a461a40f4eaabc4b47411eb323c250a", kill_on_drop: false }`
[INFO] [stdout] a6ad57786b020485c8f77a7ac04509795a461a40f4eaabc4b47411eb323c250a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5efc73620ced677e04654881def8734fc62ae5b23006e1b5432b3e585f9c3279
[INFO] running `Command { std: "docker" "start" "-a" "5efc73620ced677e04654881def8734fc62ae5b23006e1b5432b3e585f9c3279", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/io_pipe-4a3efcd4fa5901c8)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test sync_pipe::tests::base_read_case ... ok
[INFO] [stdout] test sync_pipe::tests::bufread_case ... ok
[INFO] [stdout] test sync_pipe::tests::writer_err_case ... ok
[INFO] [stdout] test sync_pipe::tests::base_write_case ... ok
[INFO] [stdout] test sync_pipe::tests::bufread_lines_case ... ok
[INFO] [stdout] test sync_pipe::tests::base_vectored_case ... ok
[INFO] [stdout] test sync_pipe::tests::thread_case ... ok
[INFO] [stdout] test sync_pipe::tests::threads_write_and_read_case ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.36s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests io_pipe
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs - (line 62) ... FAILED
[INFO] [stdout] test src/sync_pipe.rs - sync_pipe::Writer (line 62) ... ok
[INFO] [stdout] test src/sync_pipe.rs - sync_pipe::pipe (line 21) ... ok
[INFO] [stdout] test src/lib.rs - (line 101) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 82) ... FAILED
[INFO] [stdout] test src/sync_pipe.rs - sync_pipe::Reader (line 126) ... ok
[INFO] [stdout] test src/lib.rs - (line 38) ... ok
[INFO] [stdout] test src/lib.rs - (line 25) ... ok
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 62) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `io_pipe::async_pipe`
[INFO] [stdout]    --> src/lib.rs:64:5
[INFO] [stdout]     |
[INFO] [stdout]  64 | use io_pipe::async_pipe;
[INFO] [stdout]     |     ^^^^^^^^^----------
[INFO] [stdout]     |     |        |
[INFO] [stdout]     |     |        help: a similar name exists in the module: `sync_pipe`
[INFO] [stdout]     |     no `async_pipe` in the root
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> src/lib.rs:127:48
[INFO] [stdout]     |
[INFO] [stdout] 126 | #[cfg(feature = "async")]
[INFO] [stdout]     |       ----------------- the item is gated behind the `r#async` feature
[INFO] [stdout] 127 | pub use async_pipe::{AsyncReader, AsyncWriter, async_pipe};
[INFO] [stdout]     |                                                ^^^^^^^^^^
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> src/lib.rs:135:5
[INFO] [stdout]     |
[INFO] [stdout] 134 | #[cfg(feature = "async")]
[INFO] [stdout]     |       ----------------- the item is gated behind the `r#async` feature
[INFO] [stdout] 135 | mod async_pipe;
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     writer.write_all(b"hello").await.unwrap();
[INFO] [stdout]    |     ^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     writer.write_all(b"hello").await.unwrap();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     reader.read_to_string(&mut buffer).await.unwrap();
[INFO] [stdout]    |     ^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     reader.read_to_string(&mut buffer).await.unwrap();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0432.
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 101) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `io_pipe::async_writer_pipe`
[INFO] [stdout]    --> src/lib.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 | use io_pipe::async_writer_pipe;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ no `async_writer_pipe` in the root
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> src/lib.rs:130:41
[INFO] [stdout]     |
[INFO] [stdout] 128 | #[cfg(feature = "async")]
[INFO] [stdout]     |       ----------------- the item is gated behind the `r#async` feature
[INFO] [stdout] 129 | #[cfg(feature = "sync")]
[INFO] [stdout] 130 | pub use async_pipe::{async_reader_pipe, async_writer_pipe};
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:111:5
[INFO] [stdout]     |
[INFO] [stdout] 111 |     writer.write_all(b"hello").await.unwrap();
[INFO] [stdout]     |     ^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:111:5
[INFO] [stdout]     |
[INFO] [stdout] 111 |     writer.write_all(b"hello").await.unwrap();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:116:1
[INFO] [stdout]     |
[INFO] [stdout] 116 | reader.read_to_string(&mut buffer).unwrap();
[INFO] [stdout]     | ^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0432.
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 82) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `io_pipe::async_reader_pipe`
[INFO] [stdout]    --> src/lib.rs:84:5
[INFO] [stdout]     |
[INFO] [stdout]  84 | use io_pipe::async_reader_pipe;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ no `async_reader_pipe` in the root
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> src/lib.rs:130:22
[INFO] [stdout]     |
[INFO] [stdout] 128 | #[cfg(feature = "async")]
[INFO] [stdout]     |       ----------------- the item is gated behind the `r#async` feature
[INFO] [stdout] 129 | #[cfg(feature = "sync")]
[INFO] [stdout] 130 | pub use async_pipe::{async_reader_pipe, async_writer_pipe};
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:90:1
[INFO] [stdout]    |
[INFO] [stdout] 90 | writer.write_all(b"hello").unwrap();
[INFO] [stdout]    | ^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     reader.read_to_string(&mut buffer).await.unwrap();
[INFO] [stdout]    |     ^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     reader.read_to_string(&mut buffer).await.unwrap();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0432.
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 101)
[INFO] [stdout]     src/lib.rs - (line 62)
[INFO] [stdout]     src/lib.rs - (line 82)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 5 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.94s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 1.07s; merged doctests compilation took 0.13s
[INFO] running `Command { std: "docker" "inspect" "5efc73620ced677e04654881def8734fc62ae5b23006e1b5432b3e585f9c3279", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5efc73620ced677e04654881def8734fc62ae5b23006e1b5432b3e585f9c3279", kill_on_drop: false }`
[INFO] [stdout] 5efc73620ced677e04654881def8734fc62ae5b23006e1b5432b3e585f9c3279
