[INFO] fetching crate components-arena 4.1.1...
[INFO] testing components-arena-4.1.1 against 1.75.0 for beta-1.76-1
[INFO] extracting crate components-arena 4.1.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate components-arena 4.1.1 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 components-arena 4.1.1
[INFO] finished tweaking crates.io crate components-arena 4.1.1
[INFO] tweaked toml for crates.io crate components-arena 4.1.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate components-arena 4.1.1 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 educe v0.4.23
[INFO] [stderr]   Downloaded components-arena-traits v1.1.1
[INFO] [stderr]   Downloaded phantom-type v0.4.2
[INFO] [stderr]   Downloaded const-default-derive v0.2.0
[INFO] [stderr]   Downloaded quickcheck_macros v1.0.0
[INFO] [stderr]   Downloaded composable-allocators v0.2.9
[INFO] [stderr]   Downloaded document-features v0.2.7
[INFO] [stderr]   Downloaded macro-attr-2018 v3.0.0
[INFO] [stderr]   Downloaded enum-ordinalize v3.1.13
[INFO] [stderr]   Downloaded litrs v0.2.3
[INFO] [stderr]   Downloaded generics v0.5.0
[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] 437dc854e37d23b47a1ccc2c93698cc258c775baded89a193f03e127e0e756f0
[INFO] running `Command { std: "docker" "start" "-a" "437dc854e37d23b47a1ccc2c93698cc258c775baded89a193f03e127e0e756f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "437dc854e37d23b47a1ccc2c93698cc258c775baded89a193f03e127e0e756f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "437dc854e37d23b47a1ccc2c93698cc258c775baded89a193f03e127e0e756f0", kill_on_drop: false }`
[INFO] [stdout] 437dc854e37d23b47a1ccc2c93698cc258c775baded89a193f03e127e0e756f0
[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] fa293c57baae4b9897de2100bddaba7ed4a4059aae250dd9232adb154d1a6306
[INFO] running `Command { std: "docker" "start" "-a" "fa293c57baae4b9897de2100bddaba7ed4a4059aae250dd9232adb154d1a6306", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.14.0
[INFO] [stderr]    Compiling toml_datetime v0.6.3
[INFO] [stderr]    Compiling winnow v0.5.15
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling litrs v0.2.3
[INFO] [stderr]    Compiling const-default v1.0.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling generics v0.5.0
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling components-arena-traits v1.1.1
[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/components-arena-traits-1.1.1/src/lib.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(feature="nightly", feature(const_trait_impl))]
[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-6f17d22bba15001f/components-arena-traits-1.1.1/src/lib.rs:2:32
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(feature="nightly", feature(effects))]
[INFO] [stdout]   |                                ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `components-arena-traits` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "fa293c57baae4b9897de2100bddaba7ed4a4059aae250dd9232adb154d1a6306", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa293c57baae4b9897de2100bddaba7ed4a4059aae250dd9232adb154d1a6306", kill_on_drop: false }`
[INFO] [stdout] fa293c57baae4b9897de2100bddaba7ed4a4059aae250dd9232adb154d1a6306
