[INFO] fetching crate sculk 0.2.2...
[INFO] testing sculk-0.2.2 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate sculk 0.2.2 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate sculk 0.2.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate sculk 0.2.2
[INFO] tweaked toml for crates.io crate sculk 0.2.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sculk 0.2.2 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sculk 0.2.2 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded residua-cesu8 v2.0.0
[INFO] [stderr]   Downloaded simdnbt v0.6.0
[INFO] [stderr]   Downloaded residua-mutf8 v2.0.0
[INFO] [stderr]   Downloaded valence_nbt v0.8.0
[INFO] [stderr]   Downloaded simdnbt-derive v0.6.0
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27e21d69726c84aba934cc7b28b2986b92e4790796ce23727be40b59f04405d6
[INFO] running `Command { std: "docker" "start" "-a" "27e21d69726c84aba934cc7b28b2986b92e4790796ce23727be40b59f04405d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27e21d69726c84aba934cc7b28b2986b92e4790796ce23727be40b59f04405d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27e21d69726c84aba934cc7b28b2986b92e4790796ce23727be40b59f04405d6", kill_on_drop: false }`
[INFO] [stdout] 27e21d69726c84aba934cc7b28b2986b92e4790796ce23727be40b59f04405d6
[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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9bfd72606be1a740ad69dcb36758f431ce8da2f41cf705352cf8d19e9b83c38d
[INFO] running `Command { std: "docker" "start" "-a" "9bfd72606be1a740ad69dcb36758f431ce8da2f41cf705352cf8d19e9b83c38d", kill_on_drop: false }`
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling thiserror v1.0.61
[INFO] [stderr]    Compiling cesu8 v1.1.0
[INFO] [stderr]    Compiling residua-cesu8 v2.0.0
[INFO] [stderr]    Compiling syn v2.0.68
[INFO] [stderr]    Compiling residua-mutf8 v2.0.0
[INFO] [stderr]    Compiling miniz_oxide v0.7.4
[INFO] [stderr]    Compiling valence_nbt v0.8.0
[INFO] [stderr]    Compiling flate2 v1.0.30
[INFO] [stderr]    Compiling thiserror-impl v1.0.61
[INFO] [stderr]    Compiling simdnbt-derive v0.6.0
[INFO] [stderr]    Compiling simdnbt v0.6.0
[INFO] [stdout] error[E0635]: unknown feature `array_chunks`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/simdnbt-0.6.0/src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(array_chunks)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `array_chunks` found for reference `&[u8]` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/simdnbt-0.6.0/src/mutf8.rs:24:33
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let chunks_32_exact = slice.array_chunks::<32>();
[INFO] [stdout]    |                                 ^^^^^^^^^^^^ `&[u8]` is not an iterator
[INFO] [stdout]    |
[INFO] [stdout] help: call `.into_iter()` first
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let chunks_32_exact = slice.into_iter().array_chunks::<32>();
[INFO] [stdout]    |                                 ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `simdnbt` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "9bfd72606be1a740ad69dcb36758f431ce8da2f41cf705352cf8d19e9b83c38d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bfd72606be1a740ad69dcb36758f431ce8da2f41cf705352cf8d19e9b83c38d", kill_on_drop: false }`
[INFO] [stdout] 9bfd72606be1a740ad69dcb36758f431ce8da2f41cf705352cf8d19e9b83c38d