[INFO] fetching crate slice_math 0.1.31...
[INFO] testing slice_math-0.1.31 against 1.91.0 for beta-1.92-2
[INFO] extracting crate slice_math 0.1.31 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate slice_math 0.1.31
[INFO] finished tweaking crates.io crate slice_math 0.1.31
[INFO] tweaked toml for crates.io crate slice_math 0.1.31 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate slice_math 0.1.31 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate slice_math 0.1.31 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slice_trait v0.1.1
[INFO] [stderr]   Downloaded moddef v0.2.2
[INFO] [stderr]   Downloaded pathfinder_geometry v0.5.1
[INFO] [stderr]   Downloaded slice_ops v0.1.12
[INFO] [stderr]   Downloaded float-ord v0.3.2
[INFO] [stderr]   Downloaded intel-mkl-src v0.8.1
[INFO] [stderr]   Downloaded cblas-sys v0.1.4
[INFO] [stderr]   Downloaded katexit v0.1.4
[INFO] [stderr]   Downloaded approx v0.4.0
[INFO] [stderr]   Downloaded dwrote v0.11.2
[INFO] [stderr]   Downloaded intel-mkl-tool v0.8.1
[INFO] [stderr]   Downloaded pathfinder_simd v0.5.4
[INFO] [stderr]   Downloaded anyhow v1.0.94
[INFO] [stderr]   Downloaded tar v0.4.43
[INFO] [stderr]   Downloaded cc v1.2.3
[INFO] [stderr]   Downloaded png v0.17.15
[INFO] [stderr]   Downloaded matrixmultiply v0.3.9
[INFO] [stderr]   Downloaded ndarray-linalg v0.16.0
[INFO] [stderr]   Downloaded font-kit v0.14.2
[INFO] [stderr]   Downloaded oci-spec v0.6.8
[INFO] [stderr]   Downloaded getset v0.1.3
[INFO] [stderr]   Downloaded ocipkg v0.2.9
[INFO] [stderr]   Downloaded lax v0.16.0
[INFO] [stderr]   Downloaded syn v2.0.90
[INFO] [stderr]   Downloaded core-text v20.1.0
[INFO] [stderr]   Downloaded rustfft v6.2.0
[INFO] [stderr]   Downloaded wio v0.2.2
[INFO] [stderr]   Downloaded gif v0.12.0
[INFO] [stderr]   Downloaded libc v0.2.168
[INFO] [stderr]   Downloaded freetype-sys v0.20.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ee3a7223a3e00054f6c7483752c07a6396db1ed0736436e2fd6fde062f92128
[INFO] running `Command { std: "docker" "start" "-a" "3ee3a7223a3e00054f6c7483752c07a6396db1ed0736436e2fd6fde062f92128", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ee3a7223a3e00054f6c7483752c07a6396db1ed0736436e2fd6fde062f92128", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ee3a7223a3e00054f6c7483752c07a6396db1ed0736436e2fd6fde062f92128", kill_on_drop: false }`
[INFO] [stdout] 3ee3a7223a3e00054f6c7483752c07a6396db1ed0736436e2fd6fde062f92128
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c5d5867ca06aeb366a6f8f0d0729452d69eedc83877e68415b42331f9e8b4c9
[INFO] running `Command { std: "docker" "start" "-a" "0c5d5867ca06aeb366a6f8f0d0729452d69eedc83877e68415b42331f9e8b4c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling slice_trait v0.1.1
[INFO] [stderr]    Compiling moddef v0.2.2
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling num-rational v0.4.2
[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/slice_trait-0.1.1/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(trait_alias)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/slice_trait-0.1.1/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(const_trait_impl)]
[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 `slice_trait` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "0c5d5867ca06aeb366a6f8f0d0729452d69eedc83877e68415b42331f9e8b4c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c5d5867ca06aeb366a6f8f0d0729452d69eedc83877e68415b42331f9e8b4c9", kill_on_drop: false }`
[INFO] [stdout] 0c5d5867ca06aeb366a6f8f0d0729452d69eedc83877e68415b42331f9e8b4c9
