[INFO] fetching crate slas 0.3.1...
[INFO] testing slas-0.3.1 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate slas 0.3.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate slas 0.3.1
[INFO] finished tweaking crates.io crate slas 0.3.1
[INFO] tweaked toml for crates.io crate slas 0.3.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate slas 0.3.1 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "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" "+caccb4d0368bd918ef6668af8e13834d07040417" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[INFO] [stderr]       Adding cblas-sys v0.1.4 (available: v0.3.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cblas-sys v0.1.4
[INFO] [stderr]   Downloaded levitate v0.1.2
[INFO] [stderr]   Downloaded blis-src v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8bca26b0ec048d4029657885672ed0e77a666f09d881765218d89ee72264d7c5
[INFO] running `Command { std: "docker" "start" "-a" "8bca26b0ec048d4029657885672ed0e77a666f09d881765218d89ee72264d7c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8bca26b0ec048d4029657885672ed0e77a666f09d881765218d89ee72264d7c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bca26b0ec048d4029657885672ed0e77a666f09d881765218d89ee72264d7c5", kill_on_drop: false }`
[INFO] [stdout] 8bca26b0ec048d4029657885672ed0e77a666f09d881765218d89ee72264d7c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 206afd477f7334bf00b4f2f28d700ea99abb7abfd66043cc457a7f03f2853e3b
[INFO] running `Command { std: "docker" "start" "-a" "206afd477f7334bf00b4f2f28d700ea99abb7abfd66043cc457a7f03f2853e3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling blis-src v0.2.2
[INFO] [stderr]    Compiling slas v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling cblas-sys v0.1.4
[INFO] [stderr]    Compiling levitate v0.1.2
[INFO] [stdout] error[E0658]: use of unstable const library feature `const_convert`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/levitate-0.1.2/src/fast_floats.rs:40:15
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl<F> const Deref for Fast<F> {
[INFO] [stdout]    |               ^^^^^ trait is not stable as const yet
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #143773 <https://github.com/rust-lang/rust/issues/143773> for more information
[INFO] [stdout]    = help: add `#![feature(const_convert)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-09-24; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `std::ops::Deref` is not yet stable as a const trait
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/levitate-0.1.2/src/lib.rs:168:21
[INFO] [stdout]     |
[INFO] [stdout] 168 |                     *self
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 196 |     def_fast_primitive!(f32);
[INFO] [stdout]     |     ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `def_fast_primitive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add `#![feature(const_convert)]` to the crate attributes to enable
[INFO] [stdout]     |
[INFO] [stdout]  26 + #![feature(const_convert)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `std::ops::Deref` is not yet stable as a const trait
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/levitate-0.1.2/src/lib.rs:168:21
[INFO] [stdout]     |
[INFO] [stdout] 168 |                     *self
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 197 |     def_fast_primitive!(f64);
[INFO] [stdout]     |     ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `def_fast_primitive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add `#![feature(const_convert)]` to the crate attributes to enable
[INFO] [stdout]     |
[INFO] [stdout]  26 + #![feature(const_convert)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `levitate` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "206afd477f7334bf00b4f2f28d700ea99abb7abfd66043cc457a7f03f2853e3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "206afd477f7334bf00b4f2f28d700ea99abb7abfd66043cc457a7f03f2853e3b", kill_on_drop: false }`
[INFO] [stdout] 206afd477f7334bf00b4f2f28d700ea99abb7abfd66043cc457a7f03f2853e3b