[INFO] fetching crate syslog_proto 0.1.0-alpha0...
[INFO] testing syslog_proto-0.1.0-alpha0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate syslog_proto 0.1.0-alpha0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate syslog_proto 0.1.0-alpha0
[INFO] finished tweaking crates.io crate syslog_proto 0.1.0-alpha0
[INFO] tweaked toml for crates.io crate syslog_proto 0.1.0-alpha0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate syslog_proto 0.1.0-alpha0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate syslog_proto 0.1.0-alpha0 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8518d9f108a8cd412167e47a4efb17c1a1d2c6c0b2d75740a9cdf55bef9b43bd
[INFO] running `Command { std: "docker" "start" "-a" "8518d9f108a8cd412167e47a4efb17c1a1d2c6c0b2d75740a9cdf55bef9b43bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8518d9f108a8cd412167e47a4efb17c1a1d2c6c0b2d75740a9cdf55bef9b43bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8518d9f108a8cd412167e47a4efb17c1a1d2c6c0b2d75740a9cdf55bef9b43bd", kill_on_drop: false }`
[INFO] [stdout] 8518d9f108a8cd412167e47a4efb17c1a1d2c6c0b2d75740a9cdf55bef9b43bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 421de5821d2c639b46931273ecd563b562738e654c371bf6989083d63582b566
[INFO] running `Command { std: "docker" "start" "-a" "421de5821d2c639b46931273ecd563b562738e654c371bf6989083d63582b566", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling heapless v0.9.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling nom v8.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling syslog_proto v0.1.0-alpha0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.52s
[INFO] running `Command { std: "docker" "inspect" "421de5821d2c639b46931273ecd563b562738e654c371bf6989083d63582b566", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "421de5821d2c639b46931273ecd563b562738e654c371bf6989083d63582b566", kill_on_drop: false }`
[INFO] [stdout] 421de5821d2c639b46931273ecd563b562738e654c371bf6989083d63582b566
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab0a290c2ebef47c2ed651fc04591679b82821cff300715ab1438e0fbd078f00
[INFO] running `Command { std: "docker" "start" "-a" "ab0a290c2ebef47c2ed651fc04591679b82821cff300715ab1438e0fbd078f00", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling bitflags v2.9.4
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling bit-vec v0.8.0
[INFO] [stderr]    Compiling unarray v0.1.4
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling bit-set v0.8.0
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling wait-timeout v0.2.1
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling rand_xorshift v0.4.0
[INFO] [stderr]    Compiling syslog_proto v0.1.0-alpha0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling tempfile v3.23.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rusty-fork v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling proptest v1.8.0
[INFO] [stdout] error[E0432]: unresolved import `core::assert_matches`
[INFO] [stdout]    --> src/payload.rs:147:15
[INFO] [stdout]     |
[INFO] [stdout] 147 |     use core::assert_matches::assert_matches;
[INFO] [stdout]     |               ^^^^^^^^^^^^^^ could not find `assert_matches` in `core`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `assert_matches` has been stable since 1.95.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |         assert_matches,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syslog_proto` (lib test) due to 1 previous error; 1 warning emitted
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ab0a290c2ebef47c2ed651fc04591679b82821cff300715ab1438e0fbd078f00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab0a290c2ebef47c2ed651fc04591679b82821cff300715ab1438e0fbd078f00", kill_on_drop: false }`
[INFO] [stdout] ab0a290c2ebef47c2ed651fc04591679b82821cff300715ab1438e0fbd078f00