[INFO] fetching crate tokio-io 0.1.13...
[INFO] testing tokio-io-0.1.13 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate tokio-io 0.1.13 into /workspace/builds/worker-2-tc2/source
[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-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tokio-io 0.1.13 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "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" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages to latest compatible versions
[INFO] [stderr]       Adding bytes v0.4.12 (available: v1.11.1)
[INFO] [stderr]       Adding futures v0.1.31 (available: v0.3.32)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 56b0b68f3b205644a17a519c52c6759d229ef475440a502242bd416dd5b742b7
[INFO] running `Command { std: "docker" "start" "-a" "56b0b68f3b205644a17a519c52c6759d229ef475440a502242bd416dd5b742b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56b0b68f3b205644a17a519c52c6759d229ef475440a502242bd416dd5b742b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56b0b68f3b205644a17a519c52c6759d229ef475440a502242bd416dd5b742b7", kill_on_drop: false }`
[INFO] [stdout] 56b0b68f3b205644a17a519c52c6759d229ef475440a502242bd416dd5b742b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc0bb05d0a2aae207266cd71803cfb1ce148be336c323c7d6452d4455fc731a2
[INFO] running `Command { std: "docker" "start" "-a" "cc0bb05d0a2aae207266cd71803cfb1ce148be336c323c7d6452d4455fc731a2", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling bytes v0.4.12
[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: read <https://doc.rust-lang.org/nightly/rustdoc/the-doc-attribute.html#at-the-crate-level> for more information
[INFO] [stdout]    = note: `#[warn(invalid_doc_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/_tokio_codec/framed_read.rs:209:43
[INFO] [stdout]     |
[INFO] [stdout] 209 |             if 0 == try_ready!(self.inner.read_buf(&mut self.buffer)) {
[INFO] [stdout]     |                                           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/framed_read.rs:213:43
[INFO] [stdout]     |
[INFO] [stdout] 213 |             if 0 == try_ready!(self.inner.read_buf(&mut self.buffer)) {
[INFO] [stdout]     |                                           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/length_delimited.rs:570:24
[INFO] [stdout]     |
[INFO] [stdout] 570 |         self.get_mut().read_buf(buf)
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/split.rs:74:11
[INFO] [stdout]    |
[INFO] [stdout] 74 |         l.read_buf(buf)
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: call with fully qualified syntax `AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.74s
[INFO] running `Command { std: "docker" "inspect" "cc0bb05d0a2aae207266cd71803cfb1ce148be336c323c7d6452d4455fc731a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc0bb05d0a2aae207266cd71803cfb1ce148be336c323c7d6452d4455fc731a2", kill_on_drop: false }`
[INFO] [stdout] cc0bb05d0a2aae207266cd71803cfb1ce148be336c323c7d6452d4455fc731a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1cc41d2e95f7b7c30f12c4db94445f8d765ea18fa4200b1ccbfe1c759ee82c9e
[INFO] running `Command { std: "docker" "start" "-a" "1cc41d2e95f7b7c30f12c4db94445f8d765ea18fa4200b1ccbfe1c759ee82c9e", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling cfg-if v0.1.10
[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: read <https://doc.rust-lang.org/nightly/rustdoc/the-doc-attribute.html#at-the-crate-level> for more information
[INFO] [stdout]    = note: `#[warn(invalid_doc_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/_tokio_codec/framed_read.rs:209:43
[INFO] [stdout]     |
[INFO] [stdout] 209 |             if 0 == try_ready!(self.inner.read_buf(&mut self.buffer)) {
[INFO] [stdout]     |                                           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/framed_read.rs:213:43
[INFO] [stdout]     |
[INFO] [stdout] 213 |             if 0 == try_ready!(self.inner.read_buf(&mut self.buffer)) {
[INFO] [stdout]     |                                           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/length_delimited.rs:570:24
[INFO] [stdout]     |
[INFO] [stdout] 570 |         self.get_mut().read_buf(buf)
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/split.rs:74:11
[INFO] [stdout]    |
[INFO] [stdout] 74 |         l.read_buf(buf)
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: call with fully qualified syntax `AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tokio-executor v0.1.10
[INFO] [stderr]    Compiling tokio-current-thread v0.1.7
[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: read <https://doc.rust-lang.org/nightly/rustdoc/the-doc-attribute.html#at-the-crate-level> for more information
[INFO] [stdout]    = note: `#[warn(invalid_doc_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/_tokio_codec/framed_read.rs:209:43
[INFO] [stdout]     |
[INFO] [stdout] 209 |             if 0 == try_ready!(self.inner.read_buf(&mut self.buffer)) {
[INFO] [stdout]     |                                           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/framed_read.rs:213:43
[INFO] [stdout]     |
[INFO] [stdout] 213 |             if 0 == try_ready!(self.inner.read_buf(&mut self.buffer)) {
[INFO] [stdout]     |                                           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/length_delimited.rs:570:24
[INFO] [stdout]     |
[INFO] [stdout] 570 |         self.get_mut().read_buf(buf)
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/split.rs:74:11
[INFO] [stdout]    |
[INFO] [stdout] 74 |         l.read_buf(buf)
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: call with fully qualified syntax `AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/split.rs:160:24
[INFO] [stdout]     |
[INFO] [stdout] 160 |             assert!(rx.read_buf(&mut buf).unwrap().is_ready());
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/split.rs:166:25
[INFO] [stdout]     |
[INFO] [stdout] 166 |             assert!(!rx.read_buf(&mut buf).unwrap().is_ready());
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/split.rs:171:24
[INFO] [stdout]     |
[INFO] [stdout] 171 |             assert!(rx.read_buf(&mut buf).unwrap().is_ready());
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> tests/async_read.rs:26:21
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let n = match R.read_buf(&mut buf).unwrap() {
[INFO] [stdout]    |                     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> tests/async_read.rs:49:17
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let err = R.read_buf(&mut buf).unwrap_err();
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> tests/async_read.rs:69:21
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let n = match R.read_buf(&mut buf).unwrap() {
[INFO] [stdout]    |                     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> tests/async_read.rs:96:21
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let n = match R.read_buf(&mut buf).unwrap() {
[INFO] [stdout]    |                     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> tests/async_read.rs:127:21
[INFO] [stdout]     |
[INFO] [stdout] 127 |     let n = match R.read_buf(&mut buf).unwrap() {
[INFO] [stdout]     |                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> tests/async_read.rs:148:16
[INFO] [stdout]     |
[INFO] [stdout] 148 |     assert!(!R.read_buf(&mut buf).unwrap().is_ready());
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.66s
[INFO] running `Command { std: "docker" "inspect" "1cc41d2e95f7b7c30f12c4db94445f8d765ea18fa4200b1ccbfe1c759ee82c9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cc41d2e95f7b7c30f12c4db94445f8d765ea18fa4200b1ccbfe1c759ee82c9e", kill_on_drop: false }`
[INFO] [stdout] 1cc41d2e95f7b7c30f12c4db94445f8d765ea18fa4200b1ccbfe1c759ee82c9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 711b52d6b769c0f1021cd495606db502403bbbfe48d806ed0c70702d46268424
[INFO] running `Command { std: "docker" "start" "-a" "711b52d6b769c0f1021cd495606db502403bbbfe48d806ed0c70702d46268424", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[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: read <https://doc.rust-lang.org/nightly/rustdoc/the-doc-attribute.html#at-the-crate-level> for more information
[INFO] [stderr]    = note: `#[warn(invalid_doc_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/_tokio_codec/framed_read.rs:209:43
[INFO] [stderr]     |
[INFO] [stderr] 209 |             if 0 == try_ready!(self.inner.read_buf(&mut self.buffer)) {
[INFO] [stderr]     |                                           ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: call with fully qualified syntax `AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stderr]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/framed_read.rs:213:43
[INFO] [stderr]     |
[INFO] [stderr] 213 |             if 0 == try_ready!(self.inner.read_buf(&mut self.buffer)) {
[INFO] [stderr]     |                                           ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: call with fully qualified syntax `AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stderr]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/length_delimited.rs:570:24
[INFO] [stderr]     |
[INFO] [stderr] 570 |         self.get_mut().read_buf(buf)
[INFO] [stderr]     |                        ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: call with fully qualified syntax `AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stderr]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/split.rs:74:11
[INFO] [stderr]    |
[INFO] [stderr] 74 |         l.read_buf(buf)
[INFO] [stderr]    |           ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: call with fully qualified syntax `AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stderr]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr] 
[INFO] [stderr] warning: `tokio-io` (lib) generated 5 warnings
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> tests/async_read.rs:26:21
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let n = match R.read_buf(&mut buf).unwrap() {
[INFO] [stderr]    |                     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stderr]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> tests/async_read.rs:49:17
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let err = R.read_buf(&mut buf).unwrap_err();
[INFO] [stderr]    |                 ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stderr]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> tests/async_read.rs:69:21
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let n = match R.read_buf(&mut buf).unwrap() {
[INFO] [stderr]    |                     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stderr]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> tests/async_read.rs:96:21
[INFO] [stderr]    |
[INFO] [stderr] 96 |     let n = match R.read_buf(&mut buf).unwrap() {
[INFO] [stderr]    |                     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stderr]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> tests/async_read.rs:127:21
[INFO] [stderr]     |
[INFO] [stderr] 127 |     let n = match R.read_buf(&mut buf).unwrap() {
[INFO] [stderr]     |                     ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stderr]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> tests/async_read.rs:148:16
[INFO] [stderr]     |
[INFO] [stderr] 148 |     assert!(!R.read_buf(&mut buf).unwrap().is_ready());
[INFO] [stderr]     |                ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stderr]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/split.rs:160:24
[INFO] [stderr]     |
[INFO] [stderr] 160 |             assert!(rx.read_buf(&mut buf).unwrap().is_ready());
[INFO] [stderr]     |                        ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: call with fully qualified syntax `AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stderr]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/split.rs:166:25
[INFO] [stderr]     |
[INFO] [stderr] 166 |             assert!(!rx.read_buf(&mut buf).unwrap().is_ready());
[INFO] [stderr]     |                         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: call with fully qualified syntax `AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stderr]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/split.rs:171:24
[INFO] [stderr]     |
[INFO] [stderr] 171 |             assert!(rx.read_buf(&mut buf).unwrap().is_ready());
[INFO] [stderr]     |                        ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: call with fully qualified syntax `AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stderr]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr] 
[INFO] [stderr] warning: `tokio-io` (test "async_read") generated 6 warnings
[INFO] [stderr] warning: `tokio-io` (lib test) generated 8 warnings (5 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tokio_io-95fe54dbc05addca)
[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::unsplit_ok ... ok
[INFO] [stdout] test split::tests::split_writehalf_translate_wouldblock_to_not_ready ... ok
[INFO] [stdout] test split::tests::unsplit_err3 - should panic ... ok
[INFO] [stdout] test split::tests::unsplit_err2 - should panic ... ok
[INFO] [stdout] test split::tests::unsplit_err1 - should panic ... ok
[INFO] [stdout] test split::tests::unsplit_err4 - should panic ... ok
[INFO] [stderr]      Running tests/async_read.rs (/opt/rustwide/target/debug/deps/async_read-10db30e8c46e9bca)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test read_buf_error ... ok
[INFO] [stdout] test read_buf_no_uninitialized ... ok
[INFO] [stdout] test read_buf_success ... ok
[INFO] [stdout] test read_buf_no_capacity ... ok
[INFO] [stdout] test read_buf_uninitialized_ok ... ok
[INFO] [stdout] test read_buf_translate_wouldblock_to_not_ready ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/length_delimited.rs (/opt/rustwide/target/debug/deps/length_delimited-dc2fd2eea3a01668)
[INFO] [stdout] 
[INFO] [stdout] running 31 tests
[INFO] [stdout] test read_empty_io_yields_nothing ... ok
[INFO] [stdout] test read_incomplete_head ... ok
[INFO] [stdout] test read_incomplete_payload ... ok
[INFO] [stdout] test read_max_frame_len ... ok
[INFO] [stdout] test read_header_offset ... ok
[INFO] [stdout] test read_incomplete_head_multi ... ok
[INFO] [stdout] test read_one_byte_length_field ... ok
[INFO] [stdout] test read_multi_frame_multi_packet ... ok
[INFO] [stdout] test read_single_frame_one_packet ... ok
[INFO] [stdout] test read_single_frame_one_packet_little_endian ... ok
[INFO] [stdout] test read_single_frame_multi_packet ... ok
[INFO] [stdout] test read_single_multi_frame_one_packet ... ok
[INFO] [stdout] test read_multi_frame_multi_packet_wait ... ok
[INFO] [stdout] test read_single_multi_frame_one_packet_length_includes_head ... ok
[INFO] [stdout] test read_single_frame_multi_packet_wait ... ok
[INFO] [stdout] test read_single_frame_one_packet_native_endian ... ok
[INFO] [stdout] test write_nothing_yields_nothing ... ok
[INFO] [stdout] test write_single_frame_length_adjusted ... ok
[INFO] [stdout] test read_update_max_frame_len_at_rest ... ok
[INFO] [stdout] test write_single_frame_one_packet ... ok
[INFO] [stdout] test write_single_frame_little_endian ... ok
[INFO] [stdout] test write_single_frame_with_short_length_field ... ok
[INFO] [stdout] test write_single_frame_would_block ... ok
[INFO] [stdout] test write_single_multi_frame_multi_packet ... ok
[INFO] [stdout] test write_single_multi_frame_one_packet ... ok
[INFO] [stdout] test read_update_max_frame_len_in_flight ... ok
[INFO] [stdout] test write_max_frame_len ... ok
[INFO] [stdout] test write_update_max_frame_len_in_flight ... ok
[INFO] [stdout] test write_update_max_frame_len_at_rest ... ok
[INFO] [stdout] test write_zero ... ok
[INFO] [stdout] test read_single_multi_frame_one_packet_skip_none_adjusted ... ok
[INFO] [stderr]    Doc-tests tokio_io
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 31 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test src/codec/mod.rs - codec::length_delimited (line 347) ... ok
[INFO] [stdout] test src/length_delimited.rs - length_delimited::Builder::native_endian (line 689) ... ok
[INFO] [stdout] test src/codec/mod.rs - codec::length_delimited (line 150) ... ok
[INFO] [stdout] test src/length_delimited.rs - length_delimited::Builder::length_field_offset (line 767) ... ok
[INFO] [stdout] test src/length_delimited.rs - length_delimited::Builder::max_frame_length (line 722) ... 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 53) ... ok
[INFO] [stdout] test src/codec/mod.rs - codec::length_delimited (line 117) ... ok
[INFO] [stdout] test src/codec/mod.rs - codec::length_delimited (line 76) ... 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 257) ... ok
[INFO] [stdout] test src/length_delimited.rs - length_delimited::Builder::length_field_length (line 745) ... 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 (line 600) ... 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::num_skip (line 810) ... ok
[INFO] [stdout] test src/length_delimited.rs - length_delimited::Builder::new_framed (line 891) ... 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_write (line 861) ... ok
[INFO] [stdout] test src/codec/mod.rs - codec::length_delimited (line 302) ... ok
[INFO] [stdout] test src/codec/mod.rs - codec::length_delimited (line 181) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.98s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "711b52d6b769c0f1021cd495606db502403bbbfe48d806ed0c70702d46268424", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "711b52d6b769c0f1021cd495606db502403bbbfe48d806ed0c70702d46268424", kill_on_drop: false }`
[INFO] [stdout] 711b52d6b769c0f1021cd495606db502403bbbfe48d806ed0c70702d46268424
