[INFO] fetching crate uniform-cubic-splines 0.5.0...
[INFO] testing uniform-cubic-splines-0.5.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate uniform-cubic-splines 0.5.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate uniform-cubic-splines 0.5.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate uniform-cubic-splines 0.5.0
[INFO] tweaked toml for crates.io crate uniform-cubic-splines 0.5.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate uniform-cubic-splines 0.5.0 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] crate crates.io crate uniform-cubic-splines 0.5.0 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lerp v0.5.0
[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] be8625f0452f207739007144f12615f56b8388bdbd68ce46b6588f1ff5021b4c
[INFO] running `Command { std: "docker" "start" "-a" "be8625f0452f207739007144f12615f56b8388bdbd68ce46b6588f1ff5021b4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be8625f0452f207739007144f12615f56b8388bdbd68ce46b6588f1ff5021b4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be8625f0452f207739007144f12615f56b8388bdbd68ce46b6588f1ff5021b4c", kill_on_drop: false }`
[INFO] [stdout] be8625f0452f207739007144f12615f56b8388bdbd68ce46b6588f1ff5021b4c
[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] 38eeada9d469fadef447913216462d93261d3326f6f7dd7b7ed200e9484491f8
[INFO] running `Command { std: "docker" "start" "-a" "38eeada9d469fadef447913216462d93261d3326f6f7dd7b7ed200e9484491f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.97
[INFO] [stderr]    Compiling thiserror v2.0.14
[INFO] [stderr]    Compiling uniform-cubic-splines v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling lerp v0.5.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.105
[INFO] [stderr]    Compiling thiserror-impl v2.0.14
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:22
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(has_f16, feature(f16))] // FIXME: remove it when it's stablized
[INFO] [stdout]   |                      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:23
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![cfg_attr(has_f128, feature(f128))] // FIXME: remove it when it's stablized
[INFO] [stdout]   |                       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(test)]
[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 `uniform-cubic-splines` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "38eeada9d469fadef447913216462d93261d3326f6f7dd7b7ed200e9484491f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38eeada9d469fadef447913216462d93261d3326f6f7dd7b7ed200e9484491f8", kill_on_drop: false }`
[INFO] [stdout] 38eeada9d469fadef447913216462d93261d3326f6f7dd7b7ed200e9484491f8