[INFO] fetching crate lemu 0.2.18...
[INFO] testing lemu-0.2.18 against 1.75.0 for beta-1.76-1
[INFO] extracting crate lemu 0.2.18 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate lemu 0.2.18 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lemu 0.2.18
[INFO] finished tweaking crates.io crate lemu 0.2.18
[INFO] tweaked toml for crates.io crate lemu 0.2.18 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate lemu 0.2.18 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clipline v0.1.2
[INFO] [stderr]   Downloaded mattr v0.0.2
[INFO] [stderr]   Downloaded umath v0.0.7
[INFO] [stderr]   Downloaded comat v0.1.3
[INFO] [stderr]   Downloaded vecto v0.1.1
[INFO] [stderr]   Downloaded lerr v0.1.5
[INFO] [stderr]   Downloaded fimg v0.4.24
[INFO] [stderr]   Downloaded rust-fuzzy-search v0.1.1
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e93f104ba81dfef117654ba4a9db630df35fdd86e53b254b64457b70dbc3ba77
[INFO] running `Command { std: "docker" "start" "-a" "e93f104ba81dfef117654ba4a9db630df35fdd86e53b254b64457b70dbc3ba77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e93f104ba81dfef117654ba4a9db630df35fdd86e53b254b64457b70dbc3ba77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e93f104ba81dfef117654ba4a9db630df35fdd86e53b254b64457b70dbc3ba77", kill_on_drop: false }`
[INFO] [stdout] e93f104ba81dfef117654ba4a9db630df35fdd86e53b254b64457b70dbc3ba77
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbd1b2eacdaa8ba3d9943d228a653924e27f051eefe93015eeb117ca94cd2cbd
[INFO] running `Command { std: "docker" "start" "-a" "dbd1b2eacdaa8ba3d9943d228a653924e27f051eefe93015eeb117ca94cd2cbd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling anstyle v1.0.4
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]    Compiling umath v0.0.7
[INFO] [stderr]    Compiling mattr v0.0.2
[INFO] [stderr]    Compiling clipline v0.1.2
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling anstyle-parse v0.2.2
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling rust-fuzzy-search v0.1.1
[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-6f17d22bba15001f/umath-0.0.7/src/lib.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(core_intrinsics)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `umath` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "dbd1b2eacdaa8ba3d9943d228a653924e27f051eefe93015eeb117ca94cd2cbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbd1b2eacdaa8ba3d9943d228a653924e27f051eefe93015eeb117ca94cd2cbd", kill_on_drop: false }`
[INFO] [stdout] dbd1b2eacdaa8ba3d9943d228a653924e27f051eefe93015eeb117ca94cd2cbd
