[INFO] fetching crate great-tokenizer 0.2.0...
[INFO] testing great-tokenizer-0.2.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate great-tokenizer 0.2.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate great-tokenizer 0.2.0
[INFO] finished tweaking crates.io crate great-tokenizer 0.2.0
[INFO] tweaked toml for crates.io crate great-tokenizer 0.2.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate great-tokenizer 0.2.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 33 packages to latest compatible versions
[INFO] [stderr]       Adding derive_more v1.0.0 (available: v2.0.1)
[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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa7af326b5f8cf3517ede6dc47be62223707387b1828196ca3372d306725cbef
[INFO] running `Command { std: "docker" "start" "-a" "fa7af326b5f8cf3517ede6dc47be62223707387b1828196ca3372d306725cbef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa7af326b5f8cf3517ede6dc47be62223707387b1828196ca3372d306725cbef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa7af326b5f8cf3517ede6dc47be62223707387b1828196ca3372d306725cbef", kill_on_drop: false }`
[INFO] [stdout] fa7af326b5f8cf3517ede6dc47be62223707387b1828196ca3372d306725cbef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8c781fda3a73f0d4701b2e4fa7e5501962645762260d7d8d7ae437cc83fb77b
[INFO] running `Command { std: "docker" "start" "-a" "c8c781fda3a73f0d4701b2e4fa7e5501962645762260d7d8d7ae437cc83fb77b", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling convert_case v0.6.0
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stderr]    Compiling derive_more-impl v1.0.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling derive_more v1.0.0
[INFO] [stderr]    Compiling great-tokenizer 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:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(fmt_internals)]
[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 `great-tokenizer` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "c8c781fda3a73f0d4701b2e4fa7e5501962645762260d7d8d7ae437cc83fb77b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8c781fda3a73f0d4701b2e4fa7e5501962645762260d7d8d7ae437cc83fb77b", kill_on_drop: false }`
[INFO] [stdout] c8c781fda3a73f0d4701b2e4fa7e5501962645762260d7d8d7ae437cc83fb77b