[INFO] fetching crate vt-muxer 0.1.0...
[INFO] testing vt-muxer-0.1.0 against beta-2026-03-05 for beta-1.95-1
[INFO] extracting crate vt-muxer 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate vt-muxer 0.1.0
[INFO] finished tweaking crates.io crate vt-muxer 0.1.0
[INFO] tweaked toml for crates.io crate vt-muxer 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate vt-muxer 0.1.0 on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate vt-muxer 0.1.0 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-2026-03-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc60653c7718e1bc53595289448799276eb50468a84fc2eb602a250506c27773
[INFO] running `Command { std: "docker" "start" "-a" "bc60653c7718e1bc53595289448799276eb50468a84fc2eb602a250506c27773", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc60653c7718e1bc53595289448799276eb50468a84fc2eb602a250506c27773", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc60653c7718e1bc53595289448799276eb50468a84fc2eb602a250506c27773", kill_on_drop: false }`
[INFO] [stdout] bc60653c7718e1bc53595289448799276eb50468a84fc2eb602a250506c27773
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c451967a58edce2eefe2c32b8811cabcd23fe3a365d4198868cc748a020e7cb4
[INFO] running `Command { std: "docker" "start" "-a" "c451967a58edce2eefe2c32b8811cabcd23fe3a365d4198868cc748a020e7cb4", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling smallvec v1.15.0
[INFO] [stderr]    Compiling bytemuck_derive v1.9.3
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling socket2 v0.5.9
[INFO] [stderr]    Compiling mio v1.0.3
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling replace_with v0.1.7
[INFO] [stderr]    Compiling nanorand v0.7.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling flume v0.11.1
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling tokio v1.44.2
[INFO] [stderr]    Compiling bytemuck v1.23.0
[INFO] [stderr]    Compiling vt-muxer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/poll_mutex.rs:73:23
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub async fn lock(&mut self) -> MaybeOwnedGuard<T> {
[INFO] [stdout]    |                       ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub async fn lock(&mut self) -> MaybeOwnedGuard<'_, T> {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/read.rs:316:19
[INFO] [stdout]     |
[INFO] [stdout] 316 |     fn lock(self: &Arc<Self>) -> ReaderLock {
[INFO] [stdout]     |                   ^^^^^^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 316 |     fn lock(self: &Arc<Self>) -> ReaderLock<'_> {
[INFO] [stdout]     |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.81s
[INFO] running `Command { std: "docker" "inspect" "c451967a58edce2eefe2c32b8811cabcd23fe3a365d4198868cc748a020e7cb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c451967a58edce2eefe2c32b8811cabcd23fe3a365d4198868cc748a020e7cb4", kill_on_drop: false }`
[INFO] [stdout] c451967a58edce2eefe2c32b8811cabcd23fe3a365d4198868cc748a020e7cb4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74c4f27db3a89ca7eda0f40ec0e3ae5802e4a75c2f5877da2f286302522bb3f0
[INFO] running `Command { std: "docker" "start" "-a" "74c4f27db3a89ca7eda0f40ec0e3ae5802e4a75c2f5877da2f286302522bb3f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling bytemuck_derive v1.9.3
[INFO] [stderr]    Compiling tokio v1.44.2
[INFO] [stderr]    Compiling flume v0.11.1
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand_xoshiro v0.7.0
[INFO] [stderr]    Compiling rand v0.9.1
[INFO] [stderr]    Compiling bytemuck v1.23.0
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling vt-muxer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/poll_mutex.rs:73:23
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub async fn lock(&mut self) -> MaybeOwnedGuard<T> {
[INFO] [stdout]    |                       ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub async fn lock(&mut self) -> MaybeOwnedGuard<'_, T> {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/read.rs:316:19
[INFO] [stdout]     |
[INFO] [stdout] 316 |     fn lock(self: &Arc<Self>) -> ReaderLock {
[INFO] [stdout]     |                   ^^^^^^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 316 |     fn lock(self: &Arc<Self>) -> ReaderLock<'_> {
[INFO] [stdout]     |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/poll_mutex.rs:73:23
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub async fn lock(&mut self) -> MaybeOwnedGuard<T> {
[INFO] [stdout]    |                       ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub async fn lock(&mut self) -> MaybeOwnedGuard<'_, T> {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/read.rs:316:19
[INFO] [stdout]     |
[INFO] [stdout] 316 |     fn lock(self: &Arc<Self>) -> ReaderLock {
[INFO] [stdout]     |                   ^^^^^^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 316 |     fn lock(self: &Arc<Self>) -> ReaderLock<'_> {
[INFO] [stdout]     |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 9.10s
[INFO] running `Command { std: "docker" "inspect" "74c4f27db3a89ca7eda0f40ec0e3ae5802e4a75c2f5877da2f286302522bb3f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74c4f27db3a89ca7eda0f40ec0e3ae5802e4a75c2f5877da2f286302522bb3f0", kill_on_drop: false }`
[INFO] [stdout] 74c4f27db3a89ca7eda0f40ec0e3ae5802e4a75c2f5877da2f286302522bb3f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 53f111b0e451a961c638999267d42f5da0ca0d6ecccab89ef3e95c433c88fbb3
[INFO] running `Command { std: "docker" "start" "-a" "53f111b0e451a961c638999267d42f5da0ca0d6ecccab89ef3e95c433c88fbb3", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/poll_mutex.rs:73:23
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub async fn lock(&mut self) -> MaybeOwnedGuard<T> {
[INFO] [stderr]    |                       ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                       |
[INFO] [stderr]    |                       the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub async fn lock(&mut self) -> MaybeOwnedGuard<'_, T> {
[INFO] [stderr]    |                                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/read.rs:316:19
[INFO] [stderr]     |
[INFO] [stderr] 316 |     fn lock(self: &Arc<Self>) -> ReaderLock {
[INFO] [stderr]     |                   ^^^^^^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 316 |     fn lock(self: &Arc<Self>) -> ReaderLock<'_> {
[INFO] [stderr]     |                                            ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `vt-muxer` (lib) generated 2 warnings (run `cargo fix --lib -p vt-muxer` to apply 2 suggestions)
[INFO] [stderr] warning: `vt-muxer` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/vt_muxer-38603340c2c919bd)
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test packet_buffer::tests::test_boxed_construction ... ok
[INFO] [stdout] test packet_buffer::tests::test_current_bytes ... ok
[INFO] [stdout] test packet_buffer::tests::test_push_limit_with_written ... ok
[INFO] [stdout] test packet_buffer::tests::test_push_multiple_times ... ok
[INFO] [stdout] test read::read_buffer::tests::test_buff_reader_empty_read ... ok
[INFO] [stdout] test packet_buffer::tests::test_packet_buffer_initialization ... ok
[INFO] [stdout] test read::read_buffer::tests::test_buff_reader_multiple_fills ... ok
[INFO] [stdout] test read::read_buffer::tests::test_buff_reader_exact_size ... ok
[INFO] [stdout] test read::read_buffer::tests::test_buff_reader_partial_reads ... ok
[INFO] [stdout] test read::read_buffer::tests::test_buff_reader_simple_read ... ok
[INFO] [stdout] test read::read_buffer::tests::test_buff_reader_zero_size_read ... ok
[INFO] [stdout] test read::read_buffer::tests::test_capacity ... ok
[INFO] [stdout] test read::read_buffer::tests::test_new_buffer ... ok
[INFO] [stdout] test tests::test_mux_listener_accept_connection ... ok
[INFO] [stdout] test tests::test_mux_pipe_add_connection_multiple_times ... ok
[INFO] [stdout] test write::tests::test_drop ... ok
[INFO] [stdout] test packet_buffer::tests::test_push_data ... ok
[INFO] [stdout] test write::tests::test_parallel_independent_sockets ... ok
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/vt_muxer-38603340c2c919bd` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "53f111b0e451a961c638999267d42f5da0ca0d6ecccab89ef3e95c433c88fbb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53f111b0e451a961c638999267d42f5da0ca0d6ecccab89ef3e95c433c88fbb3", kill_on_drop: false }`
[INFO] [stdout] 53f111b0e451a961c638999267d42f5da0ca0d6ecccab89ef3e95c433c88fbb3
