[INFO] fetching crate language-zoosemiotic-symbolic-root-fire 0.1.0...
[INFO] testing language-zoosemiotic-symbolic-root-fire-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate language-zoosemiotic-symbolic-root-fire 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate language-zoosemiotic-symbolic-root-fire 0.1.0
[INFO] finished tweaking crates.io crate language-zoosemiotic-symbolic-root-fire 0.1.0
[INFO] tweaked toml for crates.io crate language-zoosemiotic-symbolic-root-fire 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate language-zoosemiotic-symbolic-root-fire 0.1.0 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 language-zoosemiotic-symbolic-root-fire 0.1.0 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 }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 750560dfb5a6ba4e20a7e4a1562e2e13e396339660593c8485e60a901020ed3e
[INFO] running `Command { std: "docker" "start" "-a" "750560dfb5a6ba4e20a7e4a1562e2e13e396339660593c8485e60a901020ed3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "750560dfb5a6ba4e20a7e4a1562e2e13e396339660593c8485e60a901020ed3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "750560dfb5a6ba4e20a7e4a1562e2e13e396339660593c8485e60a901020ed3e", kill_on_drop: false }`
[INFO] [stdout] 750560dfb5a6ba4e20a7e4a1562e2e13e396339660593c8485e60a901020ed3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 69008ce71531204cb885e8f0d3e4f9bc866bdb3edb0b753499cdbf54af6a1e8c
[INFO] running `Command { std: "docker" "start" "-a" "69008ce71531204cb885e8f0d3e4f9bc866bdb3edb0b753499cdbf54af6a1e8c", kill_on_drop: false }`
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[INFO] [stderr]    Compiling proc-macro-error2 v2.0.1
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[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling getset v0.1.6
[INFO] [stderr]    Compiling plural-derive v0.1.0
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling derive_builder_core v0.20.2
[INFO] [stderr]    Compiling derive_builder_macro v0.20.2
[INFO] [stderr]    Compiling derive_builder v0.20.2
[INFO] [stderr]    Compiling tracing-serde v0.2.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.19
[INFO] [stderr]    Compiling language-enum v0.1.0
[INFO] [stderr]    Compiling named-item v0.6.0
[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/named-item-0.6.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(associated_type_defaults)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `named-item` (lib) due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "69008ce71531204cb885e8f0d3e4f9bc866bdb3edb0b753499cdbf54af6a1e8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69008ce71531204cb885e8f0d3e4f9bc866bdb3edb0b753499cdbf54af6a1e8c", kill_on_drop: false }`
[INFO] [stdout] 69008ce71531204cb885e8f0d3e4f9bc866bdb3edb0b753499cdbf54af6a1e8c