[INFO] fetching crate easyfix-messages 0.5.2...
[INFO] documenting easyfix-messages-0.5.2 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate easyfix-messages 0.5.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate easyfix-messages 0.5.2 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate easyfix-messages 0.5.2
[INFO] finished tweaking crates.io crate easyfix-messages 0.5.2
[INFO] tweaked toml for crates.io crate easyfix-messages 0.5.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xmltree v0.10.3
[INFO] [stderr]   Downloaded convert_case v0.5.0
[INFO] [stderr]   Downloaded easyfix-dictionary v0.3.1
[INFO] [stderr]   Downloaded easyfix-messages-gen v0.5.2
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 08cba48e3d3146d3c6da223cb7167bf16b98cf2390aed81f11f544dfb85d112b
[INFO] running `Command { std: "docker" "start" "-a" "08cba48e3d3146d3c6da223cb7167bf16b98cf2390aed81f11f544dfb85d112b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08cba48e3d3146d3c6da223cb7167bf16b98cf2390aed81f11f544dfb85d112b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08cba48e3d3146d3c6da223cb7167bf16b98cf2390aed81f11f544dfb85d112b", kill_on_drop: false }`
[INFO] [stdout] 08cba48e3d3146d3c6da223cb7167bf16b98cf2390aed81f11f544dfb85d112b
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1208b7ec8613664e098df5fdb79cb2818cd8db2bbdb2d2e4aff18db53be53ea
[INFO] running `Command { std: "docker" "start" "-a" "f1208b7ec8613664e098df5fdb79cb2818cd8db2bbdb2d2e4aff18db53be53ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling xml-rs v0.8.19
[INFO] [stderr]    Compiling convert_case v0.5.0
[INFO] [stderr]    Compiling rust_decimal v1.34.3
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling xmltree v0.10.3
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling easyfix-dictionary v0.3.1
[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/easyfix-dictionary-0.3.1/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(type_alias_impl_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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 `easyfix-dictionary` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f1208b7ec8613664e098df5fdb79cb2818cd8db2bbdb2d2e4aff18db53be53ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1208b7ec8613664e098df5fdb79cb2818cd8db2bbdb2d2e4aff18db53be53ea", kill_on_drop: false }`
[INFO] [stdout] f1208b7ec8613664e098df5fdb79cb2818cd8db2bbdb2d2e4aff18db53be53ea
