[INFO] fetching crate merkle-tree-accumulator 0.2.0...
[INFO] documenting merkle-tree-accumulator-0.2.0 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate merkle-tree-accumulator 0.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate merkle-tree-accumulator 0.2.0 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded near-runtime-utils v4.0.0-pre.1
[INFO] [stderr]   Downloaded near-rpc-error-macro v0.1.0
[INFO] [stderr]   Downloaded near-rpc-error-core v0.1.0
[INFO] [stderr]   Downloaded near-primitives-core v0.4.0
[INFO] [stderr]   Downloaded borsh v0.8.2
[INFO] [stderr]   Downloaded near-sdk-core v3.1.0
[INFO] [stderr]   Downloaded near-sdk-macros v3.1.0
[INFO] [stderr]   Downloaded safe-transmute v0.11.2
[INFO] [stderr]   Downloaded near-vm-errors v4.0.0-pre.1
[INFO] [stderr]   Downloaded near-vm-logic v4.0.0-pre.1
[INFO] [stderr]   Downloaded near-sdk v3.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 680e51910a3870fc60902d670f07f205afb6bd67d8eac341ad26c6a9f0bb00bf
[INFO] running `Command { std: "docker" "start" "-a" "680e51910a3870fc60902d670f07f205afb6bd67d8eac341ad26c6a9f0bb00bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "680e51910a3870fc60902d670f07f205afb6bd67d8eac341ad26c6a9f0bb00bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "680e51910a3870fc60902d670f07f205afb6bd67d8eac341ad26c6a9f0bb00bf", kill_on_drop: false }`
[INFO] [stdout] 680e51910a3870fc60902d670f07f205afb6bd67d8eac341ad26c6a9f0bb00bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f41e7132d9355fd95121a92316f979327ba6ad7a1fd7bfdd118a1bd333ef9d09
[INFO] running `Command { std: "docker" "start" "-a" "f41e7132d9355fd95121a92316f979327ba6ad7a1fd7bfdd118a1bd333ef9d09", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]    Compiling ryu v1.0.13
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking cpufeatures v0.2.7
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling wee_alloc v0.4.5
[INFO] [stderr]     Checking keccak v0.1.3
[INFO] [stderr]     Checking bs58 v0.4.0
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]     Checking near-runtime-utils v4.0.0-pre.1
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking memory_units v0.4.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]     Checking safe-transmute v0.11.2
[INFO] [stderr]     Checking rlp v0.5.2
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking thiserror v1.0.40
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling borsh-derive-internal v0.8.2
[INFO] [stderr]    Compiling borsh-schema-derive-internal v0.8.2
[INFO] [stderr]    Compiling near-rpc-error-core v0.1.0
[INFO] [stderr]    Compiling near-sdk-core v3.1.0
[INFO] [stderr]    Compiling borsh-derive v0.8.2
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling near-rpc-error-macro v0.1.0
[INFO] [stderr]    Compiling near-sdk-macros v3.1.0
[INFO] [stderr]     Checking borsh v0.8.2
[INFO] [stderr]     Checking near-vm-errors v4.0.0-pre.1
[INFO] [stderr]     Checking near-primitives-core v0.4.0
[INFO] [stderr]     Checking near-vm-logic v4.0.0-pre.1
[INFO] [stderr]     Checking near-sdk v3.1.0
[INFO] [stderr]  Documenting merkle-tree-accumulator v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(int_roundings)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `merkle-tree-accumulator`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type cdylib --crate-type rlib --crate-name merkle_tree_accumulator src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=13ae7459bd961b97 -L dependency=/opt/rustwide/target/debug/deps --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-f66b59f6631a5df0.rmeta --extern near_sdk=/opt/rustwide/target/debug/deps/libnear_sdk-98f0fbded6f4f1ac.rmeta --extern rlp=/opt/rustwide/target/debug/deps/librlp-096d45830498c6d1.rmeta --extern safe_transmute=/opt/rustwide/target/debug/deps/libsafe_transmute-58fbd2740d8d24b9.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-b839f3f80c6bc09b.rmeta --extern tiny_keccak=/opt/rustwide/target/debug/deps/libtiny_keccak-c5a1b72f56ebbd4d.rmeta --cap-lints=warn --crate-version 0.2.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "f41e7132d9355fd95121a92316f979327ba6ad7a1fd7bfdd118a1bd333ef9d09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f41e7132d9355fd95121a92316f979327ba6ad7a1fd7bfdd118a1bd333ef9d09", kill_on_drop: false }`
[INFO] [stdout] f41e7132d9355fd95121a92316f979327ba6ad7a1fd7bfdd118a1bd333ef9d09
