[INFO] fetching crate pi_blocking_udp 0.3.0...
[INFO] testing pi_blocking_udp-0.3.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate pi_blocking_udp 0.3.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate pi_blocking_udp 0.3.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate pi_blocking_udp 0.3.0
[INFO] tweaked toml for crates.io crate pi_blocking_udp 0.3.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate pi_blocking_udp 0.3.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate pi_blocking_udp 0.3.0 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pi_hash v0.1.1
[INFO] [stderr]   Downloaded loom v0.5.6
[INFO] [stderr]   Downloaded pi_slot_wheel v0.2.0
[INFO] [stderr]   Downloaded pi_ext_heap v0.1.1
[INFO] [stderr]   Downloaded st3 v0.4.1
[INFO] [stderr]   Downloaded once_cell v1.21.0
[INFO] [stderr]   Downloaded smallvec v1.14.0
[INFO] [stderr]   Downloaded event-listener-strategy v0.5.3
[INFO] [stderr]   Downloaded env_logger v0.11.7
[INFO] [stderr]   Downloaded event-listener v5.4.0
[INFO] [stderr]   Downloaded generator v0.7.5
[INFO] [stderr]   Downloaded slotmap v1.0.7
[INFO] [stderr]   Downloaded cc v1.2.16
[INFO] [stderr]   Downloaded wasi v0.13.3+wasi-0.2.2
[INFO] [stderr]   Downloaded zerocopy v0.8.23
[INFO] [stderr]   Downloaded portable-atomic v1.11.0
[INFO] [stderr]   Downloaded raw-cpuid v11.5.0
[INFO] [stderr]   Downloaded jiff-static v0.2.4
[INFO] [stderr]   Downloaded env_filter v0.1.3
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.14
[INFO] [stderr]   Downloaded zerocopy-derive v0.8.23
[INFO] [stderr]   Downloaded redox_syscall v0.5.10
[INFO] [stderr]   Downloaded pi_cancel_timer v0.2.0
[INFO] [stderr]   Downloaded pi_timer v0.1.0
[INFO] [stderr]   Downloaded quanta v0.12.5
[INFO] [stderr]   Downloaded getrandom v0.3.1
[INFO] [stderr]   Downloaded pi-async-rt v0.2.5
[INFO] [stderr]   Downloaded async-channel v2.3.1
[INFO] [stderr]   Downloaded miniz_oxide v0.8.5
[INFO] [stderr]   Downloaded pi_slot_deque v0.2.1
[INFO] [stderr]   Downloaded pi_wheel v0.1.0
[INFO] [stderr]   Downloaded pi_wrr v0.1.1
[INFO] [stderr]   Downloaded wit-bindgen-rt v0.33.0
[INFO] [stderr]   Downloaded log v0.4.26
[INFO] [stderr]   Downloaded socket2 v0.5.8
[INFO] [stderr]   Downloaded jiff v0.2.4
[INFO] [stderr]   Downloaded windows v0.48.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0eeb6cfc344840a4ecb85954cd814d2ac4d749f009e4aece297aa0801e5858d9
[INFO] running `Command { std: "docker" "start" "-a" "0eeb6cfc344840a4ecb85954cd814d2ac4d749f009e4aece297aa0801e5858d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0eeb6cfc344840a4ecb85954cd814d2ac4d749f009e4aece297aa0801e5858d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0eeb6cfc344840a4ecb85954cd814d2ac4d749f009e4aece297aa0801e5858d9", kill_on_drop: false }`
[INFO] [stdout] 0eeb6cfc344840a4ecb85954cd814d2ac4d749f009e4aece297aa0801e5858d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b68c5d275d977ea07871886056756c8a1a1088289166d7e00c6b8b5f07888ec
[INFO] running `Command { std: "docker" "start" "-a" "6b68c5d275d977ea07871886056756c8a1a1088289166d7e00c6b8b5f07888ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling zerocopy v0.8.23
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling slotmap v1.0.7
[INFO] [stderr]    Compiling getrandom v0.3.1
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling smallvec v1.14.0
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling parking v2.2.1
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling pi_slot_deque v0.2.1
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling adler2 v2.0.0
[INFO] [stderr]    Compiling pi_ext_heap v0.1.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pi_ext_heap-0.1.1/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(min_specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pi_ext_heap-0.1.1/src/lib.rs:145:1
[INFO] [stdout]     |
[INFO] [stdout] 145 | #![feature(inplace_iteration)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pi_ext_heap-0.1.1/src/lib.rs:146:1
[INFO] [stdout]     |
[INFO] [stdout] 146 | #![feature(trusted_len)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pi_ext_heap-0.1.1/src/lib.rs:147:1
[INFO] [stdout]     |
[INFO] [stdout] 147 | #![feature(exact_size_is_empty)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pi_ext_heap-0.1.1/src/lib.rs:148:1
[INFO] [stdout]     |
[INFO] [stdout] 148 | #![feature(extend_one)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling once_cell v1.21.0
[INFO] [stderr]    Compiling gimli v0.31.1
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling miniz_oxide v0.8.5
[INFO] [stderr] error: could not compile `pi_ext_heap` (lib) due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "6b68c5d275d977ea07871886056756c8a1a1088289166d7e00c6b8b5f07888ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b68c5d275d977ea07871886056756c8a1a1088289166d7e00c6b8b5f07888ec", kill_on_drop: false }`
[INFO] [stdout] 6b68c5d275d977ea07871886056756c8a1a1088289166d7e00c6b8b5f07888ec