[INFO] fetching crate workspacer-register-internal-crate-in-prefix-group 0.1.2...
[INFO] testing workspacer-register-internal-crate-in-prefix-group-0.1.2 against 1.90.0 for beta-1.91-3
[INFO] extracting crate workspacer-register-internal-crate-in-prefix-group 0.1.2 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate workspacer-register-internal-crate-in-prefix-group 0.1.2
[INFO] finished tweaking crates.io crate workspacer-register-internal-crate-in-prefix-group 0.1.2
[INFO] tweaked toml for crates.io crate workspacer-register-internal-crate-in-prefix-group 0.1.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate workspacer-register-internal-crate-in-prefix-group 0.1.2 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] crate crates.io crate workspacer-register-internal-crate-in-prefix-group 0.1.2 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded env_home v0.1.0
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[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc83affeb13591cd5df7080822c60bbd4fe4e793940e00634c5c7f698c6ac349
[INFO] running `Command { std: "docker" "start" "-a" "dc83affeb13591cd5df7080822c60bbd4fe4e793940e00634c5c7f698c6ac349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc83affeb13591cd5df7080822c60bbd4fe4e793940e00634c5c7f698c6ac349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc83affeb13591cd5df7080822c60bbd4fe4e793940e00634c5c7f698c6ac349", kill_on_drop: false }`
[INFO] [stdout] dc83affeb13591cd5df7080822c60bbd4fe4e793940e00634c5c7f698c6ac349
[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=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] f556d4ffc6f70bc395282336f20c974a179f7f580ab4af505ae55c62ac9ab8bb
[INFO] running `Command { std: "docker" "start" "-a" "f556d4ffc6f70bc395282336f20c974a179f7f580ab4af505ae55c62ac9ab8bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling smallvec v1.14.0
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling socket2 v0.5.9
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling tokio v1.44.1
[INFO] [stderr]    Compiling zerocopy v0.8.24
[INFO] [stderr]    Compiling export-magic v0.3.6
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling crossbeam-channel v0.5.14
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling num-traits v0.2.19
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[INFO] [stderr]    Compiling rand_chacha v0.3.1
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[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling http v1.3.1
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[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling matchers v0.1.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.19
[INFO] [stderr]    Compiling getrandom v0.3.2
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[INFO] [stderr]    Compiling indexmap v2.8.0
[INFO] [stderr]    Compiling tokio-util v0.7.14
[INFO] [stderr]    Compiling rustix v1.0.3
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[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling linux-raw-sys v0.9.3
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling anstyle-parse v0.2.6
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling proc-macro-error-attr2 v2.0.0
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling case v0.1.0
[INFO] [stderr]    Compiling colorchoice v1.0.3
[INFO] [stderr]    Compiling anstyle v1.0.10
[INFO] [stderr]    Compiling anstyle-query v1.1.2
[INFO] [stderr]    Compiling proc-macro-error2 v2.0.1
[INFO] [stderr]    Compiling anstream v0.6.18
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling serial_test_derive v0.5.1
[INFO] [stderr]    Compiling derive-error v0.0.5
[INFO] [stderr]    Compiling env_filter v0.1.3
[INFO] [stderr]    Compiling language-enum v0.1.0
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling zeroize v1.8.1
[INFO] [stderr]    Compiling jiff v0.2.5
[INFO] [stderr]    Compiling tempfile v3.19.1
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling unicode-properties v0.1.3
[INFO] [stderr]    Compiling iana-time-zone v0.1.63
[INFO] [stderr]    Compiling chrono v0.4.40
[INFO] [stderr]    Compiling pest v2.8.0
[INFO] [stderr]    Compiling rustls v0.23.25
[INFO] [stderr]    Compiling icu_normalizer v1.5.0
[INFO] [stderr]    Compiling named-item v0.6.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/named-item-0.6.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(associated_type_defaults)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling error-tree v0.6.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `named-item` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f556d4ffc6f70bc395282336f20c974a179f7f580ab4af505ae55c62ac9ab8bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f556d4ffc6f70bc395282336f20c974a179f7f580ab4af505ae55c62ac9ab8bb", kill_on_drop: false }`
[INFO] [stdout] f556d4ffc6f70bc395282336f20c974a179f7f580ab4af505ae55c62ac9ab8bb