[INFO] fetching crate litcheck-lit 0.2.2...
[INFO] testing litcheck-lit-0.2.2 against 1.91.0 for beta-1.92-2
[INFO] extracting crate litcheck-lit 0.2.2 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate litcheck-lit 0.2.2
[INFO] finished tweaking crates.io crate litcheck-lit 0.2.2
[INFO] tweaked toml for crates.io crate litcheck-lit 0.2.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate litcheck-lit 0.2.2 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 145 packages to latest compatible versions
[INFO] [stderr]       Adding console v0.15.11 (available: v0.16.1)
[INFO] [stderr]       Adding miette v5.10.0 (available: v7.6.0)
[INFO] [stderr]       Adding rustc-hash v1.1.0 (available: v2.1.1)
[INFO] [stderr]       Adding target-lexicon v0.12.16 (available: v0.13.3)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[INFO] [stderr]       Adding toml v0.8.23 (available: v0.9.8)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded is_ci v1.2.0
[INFO] [stderr]   Downloaded supports-unicode v2.1.0
[INFO] [stderr]   Downloaded string-interner v0.14.0
[INFO] [stderr]   Downloaded intrusive-collections v0.9.7
[INFO] [stderr]   Downloaded terminal_size v0.1.17
[INFO] [stderr]   Downloaded supports-color v2.1.0
[INFO] [stderr]   Downloaded wait-timeout v0.2.1
[INFO] [stderr]   Downloaded miette v5.10.0
[INFO] [stderr]   Downloaded assert_cmd v2.1.1
[INFO] [stderr]   Downloaded once_cell_polyfill v1.70.2
[INFO] [stderr]   Downloaded supports-hyperlinks v2.1.0
[INFO] [stderr]   Downloaded terminal_size v0.4.3
[INFO] [stderr]   Downloaded backtrace-ext v0.2.1
[INFO] [stderr]   Downloaded litcheck-core v0.2.2
[INFO] [stderr]   Downloaded miette-derive v5.10.0
[INFO] [stderr]   Downloaded textwrap v0.15.2
[INFO] [stderr]   Downloaded difflib v0.4.0
[INFO] [stderr]   Downloaded is-terminal v0.4.17
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9403a6c19373df5ecbda8b1f2a8f9e77c02a04ee50873d8bccc8c1236fd2b588
[INFO] running `Command { std: "docker" "start" "-a" "9403a6c19373df5ecbda8b1f2a8f9e77c02a04ee50873d8bccc8c1236fd2b588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9403a6c19373df5ecbda8b1f2a8f9e77c02a04ee50873d8bccc8c1236fd2b588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9403a6c19373df5ecbda8b1f2a8f9e77c02a04ee50873d8bccc8c1236fd2b588", kill_on_drop: false }`
[INFO] [stdout] 9403a6c19373df5ecbda8b1f2a8f9e77c02a04ee50873d8bccc8c1236fd2b588
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a97159b1f99a1604c79f357952e559f24f4334f5603c4123829e048c106923b7
[INFO] running `Command { std: "docker" "start" "-a" "a97159b1f99a1604c79f357952e559f24f4334f5603c4123829e048c106923b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling anstyle v1.0.13
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling gimli v0.32.3
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling is-terminal v0.4.17
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rustc-demangle v0.1.26
[INFO] [stderr]    Compiling anstyle-query v1.1.4
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.2
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling anstream v0.6.21
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling unicode-linebreak v0.1.5
[INFO] [stderr]    Compiling predicates-core v1.0.9
[INFO] [stderr]    Compiling is_ci v1.2.0
[INFO] [stderr]    Compiling hashbrown v0.16.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling clap_lex v0.7.6
[INFO] [stderr]    Compiling smawk v0.3.2
[INFO] [stderr]    Compiling supports-color v2.1.0
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling supports-hyperlinks v2.1.0
[INFO] [stderr]    Compiling supports-unicode v2.1.0
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling difflib v0.4.0
[INFO] [stderr]    Compiling textwrap v0.15.2
[INFO] [stderr]    Compiling termtree v0.5.1
[INFO] [stderr]    Compiling target-lexicon v0.12.16
[INFO] [stderr]    Compiling winnow v0.7.13
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling owo-colors v3.5.0
[INFO] [stderr]    Compiling assert_cmd v2.1.1
[INFO] [stderr]    Compiling toml_write v0.1.2
[INFO] [stderr]    Compiling predicates v3.1.3
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling predicates-tree v1.0.12
[INFO] [stderr]    Compiling wait-timeout v0.2.1
[INFO] [stderr]    Compiling terminal_size v0.4.3
[INFO] [stderr]    Compiling unicode-width v0.2.2
[INFO] [stderr]    Compiling clap_builder v4.5.51
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling console v0.15.11
[INFO] [stderr]    Compiling intrusive-collections v0.9.7
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling clap_derive v4.5.49
[INFO] [stderr]    Compiling miette-derive v5.10.0
[INFO] [stderr]    Compiling addr2line v0.25.1
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling indexmap v2.12.0
[INFO] [stderr]    Compiling clap v4.5.51
[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stderr]    Compiling backtrace-ext v0.2.1
[INFO] [stderr]    Compiling serde_spanned v0.6.9
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling string-interner v0.14.0
[INFO] [stderr]    Compiling miette v5.10.0
[INFO] [stderr]    Compiling toml_edit v0.22.27
[INFO] [stderr]    Compiling bstr v1.12.1
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling litcheck-core v0.2.2
[INFO] [stderr]    Compiling toml v0.8.23
[INFO] [stderr]    Compiling litcheck-lit v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iter_intersperse)]
[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 `litcheck-lit` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "a97159b1f99a1604c79f357952e559f24f4334f5603c4123829e048c106923b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a97159b1f99a1604c79f357952e559f24f4334f5603c4123829e048c106923b7", kill_on_drop: false }`
[INFO] [stdout] a97159b1f99a1604c79f357952e559f24f4334f5603c4123829e048c106923b7
