[INFO] fetching crate merkle-tree-accumulator 0.2.0...
[INFO] testing merkle-tree-accumulator-0.2.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate merkle-tree-accumulator 0.2.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate merkle-tree-accumulator 0.2.0
[INFO] finished tweaking crates.io crate merkle-tree-accumulator 0.2.0
[INFO] tweaked toml for crates.io crate merkle-tree-accumulator 0.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate merkle-tree-accumulator 0.2.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 79 packages to latest compatible versions
[INFO] [stderr]       Adding near-sdk v3.1.0 (available: v5.17.2)
[INFO] [stderr]       Adding rlp v0.5.2 (available: v0.6.1)
[INFO] [stderr]       Adding syn v1.0.57 (available: v1.0.109)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4631c24014e524afe2ad346b9f87645671da4ccc9c2055ef9a51cacb09a68c52
[INFO] running `Command { std: "docker" "start" "-a" "4631c24014e524afe2ad346b9f87645671da4ccc9c2055ef9a51cacb09a68c52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4631c24014e524afe2ad346b9f87645671da4ccc9c2055ef9a51cacb09a68c52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4631c24014e524afe2ad346b9f87645671da4ccc9c2055ef9a51cacb09a68c52", kill_on_drop: false }`
[INFO] [stdout] 4631c24014e524afe2ad346b9f87645671da4ccc9c2055ef9a51cacb09a68c52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ebdee98aae7469b0e9260dfbdf4856b2967f9d8479b0c07a5c7e11cedd353577
[INFO] running `Command { std: "docker" "start" "-a" "ebdee98aae7469b0e9260dfbdf4856b2967f9d8479b0c07a5c7e11cedd353577", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling generic-array v0.14.9
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling block-padding v0.2.1
[INFO] [stderr]    Compiling ahash v0.4.8
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling bs58 v0.4.0
[INFO] [stderr]    Compiling wee_alloc v0.4.5
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]    Compiling memory_units v0.4.0
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling bytes v1.10.1
[INFO] [stderr]    Compiling safe-transmute v0.11.3
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling rlp v0.5.2
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]    Compiling sha3 v0.9.1
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling derive_more v0.99.20
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling borsh-schema-derive-internal v0.8.2
[INFO] [stderr]    Compiling borsh-derive-internal v0.8.2
[INFO] [stderr]    Compiling near-sdk-core v3.1.0
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling near-sdk-macros v3.1.0
[INFO] [stderr]    Compiling near-runtime-utils v4.0.0-pre.1
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling near-rpc-error-core v0.1.0
[INFO] [stderr]    Compiling near-rpc-error-macro v0.1.0
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling borsh-derive v0.8.2
[INFO] [stderr]    Compiling borsh v0.8.2
[INFO] [stderr]    Compiling near-vm-errors v4.0.0-pre.1
[INFO] [stderr]    Compiling near-primitives-core v0.4.0
[INFO] [stderr]    Compiling near-vm-logic v4.0.0-pre.1
[INFO] [stderr]    Compiling near-sdk v3.1.0
[INFO] [stderr]    Compiling merkle-tree-accumulator v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(int_roundings)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `merkle-tree-accumulator` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "ebdee98aae7469b0e9260dfbdf4856b2967f9d8479b0c07a5c7e11cedd353577", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebdee98aae7469b0e9260dfbdf4856b2967f9d8479b0c07a5c7e11cedd353577", kill_on_drop: false }`
[INFO] [stdout] ebdee98aae7469b0e9260dfbdf4856b2967f9d8479b0c07a5c7e11cedd353577
