[INFO] fetching crate prefix-map 0.3.1...
[INFO] testing prefix-map-0.3.1 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate prefix-map 0.3.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate prefix-map 0.3.1
[INFO] finished tweaking crates.io crate prefix-map 0.3.1
[INFO] tweaked toml for crates.io crate prefix-map 0.3.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate prefix-map 0.3.1 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 27 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.3.23 (available: v0.9.2)
[INFO] [stderr]       Adding unicode-segmentation v0.1.3 (available: v1.12.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72bc2ebeb287b07cb550d8bb3d6fb9ea7eae0f941ad936f2908fc4aa3a756512
[INFO] running `Command { std: "docker" "start" "-a" "72bc2ebeb287b07cb550d8bb3d6fb9ea7eae0f941ad936f2908fc4aa3a756512", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72bc2ebeb287b07cb550d8bb3d6fb9ea7eae0f941ad936f2908fc4aa3a756512", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72bc2ebeb287b07cb550d8bb3d6fb9ea7eae0f941ad936f2908fc4aa3a756512", kill_on_drop: false }`
[INFO] [stdout] 72bc2ebeb287b07cb550d8bb3d6fb9ea7eae0f941ad936f2908fc4aa3a756512
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b56488c7de109804a0815c915e62e721f6e351ebb7d24c6dbc4f2cbca025da0
[INFO] running `Command { std: "docker" "start" "-a" "2b56488c7de109804a0815c915e62e721f6e351ebb7d24c6dbc4f2cbca025da0", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling unicode-segmentation v0.1.3
[INFO] [stderr]    Compiling prefix-map v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(associated_type_defaults, iter_arith, test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clippy`
[INFO] [stdout]  --> src/lib.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![cfg_attr(feature="clippy", feature(plugin))]
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected values for `feature` are: `default` and `unstable`
[INFO] [stdout]   = help: consider adding `clippy` as a feature in `Cargo.toml`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `clippy`
[INFO] [stdout]  --> src/lib.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![cfg_attr(feature="clippy", plugin(clippy))]
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected values for `feature` are: `default` and `unstable`
[INFO] [stdout]   = help: consider adding `clippy` as a feature in `Cargo.toml`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `iter_arith` has been stable since 1.11.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:38
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(associated_type_defaults, iter_arith, test)]
[INFO] [stdout]   |                                      ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `<Self as ToOwned>::Owned: OwnedPrefix` is not satisfied
[INFO] [stdout]   --> src/prefix.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         <Self as ToOwned>::Owned;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^ the trait `OwnedPrefix` is not implemented for `<Self as ToOwned>::Owned`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `ToPrefix::OwnedPrefix`
[INFO] [stdout]   --> src/prefix.rs:14:23
[INFO] [stdout]    |
[INFO] [stdout] 14 |     type OwnedPrefix: OwnedPrefix<Item=Self::OwnedItem> + Borrow<Self> =
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `ToPrefix::OwnedPrefix`
[INFO] [stdout] help: consider further restricting the associated type
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub trait ToPrefix: ToOwned where <Self as ToOwned>::Owned: OwnedPrefix {
[INFO] [stdout]    |                             +++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `<Self as ToPrefix>::OwnedItem == _`
[INFO] [stdout]   --> src/prefix.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |         <Self::OwnedPrefix as OwnedPrefix>::Item;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0275, E0277, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0275`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `prefix-map` (lib) due to 3 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "2b56488c7de109804a0815c915e62e721f6e351ebb7d24c6dbc4f2cbca025da0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b56488c7de109804a0815c915e62e721f6e351ebb7d24c6dbc4f2cbca025da0", kill_on_drop: false }`
[INFO] [stdout] 2b56488c7de109804a0815c915e62e721f6e351ebb7d24c6dbc4f2cbca025da0
