[INFO] fetching crate shell-util 0.0.0...
[INFO] testing shell-util-0.0.0 against 1.99.0-beta.8 for beta-1.100-2
[INFO] extracting crate shell-util 0.0.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate shell-util 0.0.0
[INFO] finished tweaking crates.io crate shell-util 0.0.0
[INFO] tweaked toml for crates.io crate shell-util 0.0.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate shell-util 0.0.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate shell-util 0.0.0 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.217
[INFO] [stderr]   Downloaded shared_child v1.0.1
[INFO] [stderr]   Downloaded os_pipe v1.2.1
[INFO] [stderr]   Downloaded miniz_oxide v0.7.4
[INFO] [stderr]   Downloaded thiserror v2.0.11
[INFO] [stderr]   Downloaded thiserror-impl v2.0.11
[INFO] [stderr]   Downloaded unicode-ident v1.0.15
[INFO] [stderr]   Downloaded bitflags v2.8.0
[INFO] [stderr]   Downloaded socket2 v0.5.8
[INFO] [stderr]   Downloaded serde_derive v1.0.217
[INFO] [stderr]   Downloaded proc-macro2 v1.0.93
[INFO] [stderr]   Downloaded bytes v1.9.0
[INFO] [stderr]   Downloaded cc v1.2.10
[INFO] [stderr]   Downloaded serde_json v1.0.137
[INFO] [stderr]   Downloaded syn v2.0.96
[INFO] [stderr]   Downloaded tokio v1.43.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c2fbb9acbc5c9a57336c5bf888ddae5df056d43a078439cb3e9c31265e0c5813
[INFO] running `Command { std: "docker" "start" "c2fbb9acbc5c9a57336c5bf888ddae5df056d43a078439cb3e9c31265e0c5813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2fbb9acbc5c9a57336c5bf888ddae5df056d43a078439cb3e9c31265e0c5813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c2fbb9acbc5c9a57336c5bf888ddae5df056d43a078439cb3e9c31265e0c5813" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2fbb9acbc5c9a57336c5bf888ddae5df056d43a078439cb3e9c31265e0c5813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c2fbb9acbc5c9a57336c5bf888ddae5df056d43a078439cb3e9c31265e0c5813" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.15
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling serde_json v1.0.137
[INFO] [stderr]    Compiling thiserror v2.0.11
[INFO] [stderr]    Compiling itoa v1.0.14
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling bytes v1.9.0
[INFO] [stderr]    Compiling encoding_rs v0.8.35
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling mio v1.0.3
[INFO] [stderr]    Compiling socket2 v0.5.8
[INFO] [stderr]    Compiling shared_child v1.0.1
[INFO] [stderr]    Compiling os_pipe v1.2.1
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]    Compiling thiserror-impl v2.0.11
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling tokio v1.43.0
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling shell-util v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_internals)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `slice_internals` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_internals)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `shell-util` (lib) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c2fbb9acbc5c9a57336c5bf888ddae5df056d43a078439cb3e9c31265e0c5813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2fbb9acbc5c9a57336c5bf888ddae5df056d43a078439cb3e9c31265e0c5813", kill_on_drop: false }`
[INFO] [stdout] c2fbb9acbc5c9a57336c5bf888ddae5df056d43a078439cb3e9c31265e0c5813
