[INFO] fetching crate dtd-rs 0.1.0-alpha2...
[INFO] documenting dtd-rs-0.1.0-alpha2 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate dtd-rs 0.1.0-alpha2 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate dtd-rs 0.1.0-alpha2 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 dtd-rs 0.1.0-alpha2
[INFO] finished tweaking crates.io crate dtd-rs 0.1.0-alpha2
[INFO] tweaked toml for crates.io crate dtd-rs 0.1.0-alpha2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate dtd-rs 0.1.0-alpha2 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 bytecount v0.6.2
[INFO] [stderr]   Downloaded nom-tracable-macros v0.7.0
[INFO] [stderr]   Downloaded semver-parser v0.10.2
[INFO] [stderr]   Downloaded nom-greedyerror v0.3.1
[INFO] [stderr]   Downloaded bytecount v0.3.2
[INFO] [stderr]   Downloaded nom v6.2.1
[INFO] [stderr]   Downloaded nom_locate v3.0.2
[INFO] [stderr]   Downloaded derive_more v0.99.16
[INFO] [stderr]   Downloaded dtd-parser v0.1.0-alpha3
[INFO] [stderr]   Downloaded rustc_version v0.3.3
[INFO] [stderr]   Downloaded nom-tracable v0.7.0
[INFO] [stderr]   Downloaded nom_locate v1.0.0
[INFO] [stderr]   Downloaded dtd-macro v0.1.0-alpha2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] f7b8f0a719ee74b6d70cfcd5a38f3aa6d7ea1b51c9147e4f7113ae45eb768bf2
[INFO] running `Command { std: "docker" "start" "-a" "f7b8f0a719ee74b6d70cfcd5a38f3aa6d7ea1b51c9147e4f7113ae45eb768bf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7b8f0a719ee74b6d70cfcd5a38f3aa6d7ea1b51c9147e4f7113ae45eb768bf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7b8f0a719ee74b6d70cfcd5a38f3aa6d7ea1b51c9147e4f7113ae45eb768bf2", kill_on_drop: false }`
[INFO] [stdout] f7b8f0a719ee74b6d70cfcd5a38f3aa6d7ea1b51c9147e4f7113ae45eb768bf2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6f0b584c0975cc0f7d3c54a1d45bb6ec19f5ff17f170951f00a7297187b9e86
[INFO] running `Command { std: "docker" "start" "-a" "a6f0b584c0975cc0f7d3c54a1d45bb6ec19f5ff17f170951f00a7297187b9e86", kill_on_drop: false }`
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling nom v6.2.1
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling bytecount v0.6.2
[INFO] [stderr]    Compiling bytecount v0.3.2
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling bitvec v0.19.5
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling regex v1.4.6
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]     Checking nom_locate v1.0.0
[INFO] [stderr]     Checking nom_locate v2.1.0
[INFO] [stderr]     Checking nom_locate v3.0.2
[INFO] [stderr]     Checking nom-greedyerror v0.3.1
[INFO] [stderr]    Compiling nom-tracable-macros v0.7.0
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling nom-tracable v0.7.0
[INFO] [stderr]    Compiling dtd-parser v0.1.0-alpha3
[INFO] [stderr]    Compiling dtd-macro v0.1.0-alpha2
[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/dtd-macro-0.1.0-alpha2/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_diagnostic)]
[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 `dtd-macro` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "a6f0b584c0975cc0f7d3c54a1d45bb6ec19f5ff17f170951f00a7297187b9e86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6f0b584c0975cc0f7d3c54a1d45bb6ec19f5ff17f170951f00a7297187b9e86", kill_on_drop: false }`
[INFO] [stdout] a6f0b584c0975cc0f7d3c54a1d45bb6ec19f5ff17f170951f00a7297187b9e86
