[INFO] fetching crate dtd-macro 0.1.0-alpha2...
[INFO] testing dtd-macro-0.1.0-alpha2 against 1.90.0 for beta-1.91-3
[INFO] extracting crate dtd-macro 0.1.0-alpha2 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate dtd-macro 0.1.0-alpha2
[INFO] finished tweaking crates.io crate dtd-macro 0.1.0-alpha2
[INFO] tweaked toml for crates.io crate dtd-macro 0.1.0-alpha2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate dtd-macro 0.1.0-alpha2 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 42 packages to latest compatible versions
[INFO] [stderr]       Adding aho-corasick v0.7.15 (available: v0.7.20)
[INFO] [stderr]       Adding memchr v2.3.4 (available: v2.7.6)
[INFO] [stderr]       Adding regex v1.4.6 (available: v1.11.3)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.106)
[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 }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitflags v1.3.2
[INFO] [stderr]   Downloaded radium v0.5.3
[INFO] [stderr]   Downloaded nom-tracable-macros v0.7.0
[INFO] [stderr]   Downloaded dtd-parser v0.1.0-alpha3
[INFO] [stderr]   Downloaded wyz v0.2.0
[INFO] [stderr]   Downloaded Inflector v0.11.4
[INFO] [stderr]   Downloaded semver v1.0.27
[INFO] [stderr]   Downloaded derive_more v0.99.20
[INFO] [stderr]   Downloaded indexmap v1.9.3
[INFO] [stderr]   Downloaded nom-greedyerror v0.3.1
[INFO] [stderr]   Downloaded funty v1.1.0
[INFO] [stderr]   Downloaded hashbrown v0.12.3
[INFO] [stderr]   Downloaded aho-corasick v0.7.15
[INFO] [stderr]   Downloaded nom v5.1.3
[INFO] [stderr]   Downloaded bitvec v0.19.6
[INFO] [stderr]   Downloaded nom v6.2.2
[INFO] [stderr]   Downloaded ryu v1.0.20
[INFO] [stderr]   Downloaded rustc_version v0.4.1
[INFO] [stderr]   Downloaded nom_locate v2.1.0
[INFO] [stderr]   Downloaded regex v1.4.6
[INFO] [stderr]   Downloaded regex-syntax v0.6.29
[INFO] [stderr]   Downloaded bytecount v0.3.2
[INFO] [stderr]   Downloaded nom_locate v1.0.0
[INFO] [stderr]   Downloaded tap v1.0.1
[INFO] [stderr]   Downloaded convert_case v0.4.0
[INFO] [stderr]   Downloaded nom-tracable v0.7.0
[INFO] [stderr]   Downloaded bytecount v0.6.9
[INFO] [stderr]   Downloaded nom_locate v3.0.2
[INFO] [stderr]   Downloaded arrayvec v0.5.2
[INFO] [stderr]   Downloaded static_assertions v1.1.0
[INFO] [stderr]   Downloaded memchr v2.3.4
[INFO] [stderr]   Downloaded lexical-core v0.7.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 44e6fab650d6e462bd3889d3cb4ac3ef033ac244a7a29b4791673cae2cdb50a3
[INFO] running `Command { std: "docker" "start" "-a" "44e6fab650d6e462bd3889d3cb4ac3ef033ac244a7a29b4791673cae2cdb50a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44e6fab650d6e462bd3889d3cb4ac3ef033ac244a7a29b4791673cae2cdb50a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44e6fab650d6e462bd3889d3cb4ac3ef033ac244a7a29b4791673cae2cdb50a3", kill_on_drop: false }`
[INFO] [stdout] 44e6fab650d6e462bd3889d3cb4ac3ef033ac244a7a29b4791673cae2cdb50a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 07aedf411f507fcf27a47d69f3cc2a77b9d814687f755fba3b474754cbcfaa19
[INFO] running `Command { std: "docker" "start" "-a" "07aedf411f507fcf27a47d69f3cc2a77b9d814687f755fba3b474754cbcfaa19", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling ryu v1.0.20
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling bytecount v0.6.9
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling bytecount v0.3.2
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling nom v5.1.3
[INFO] [stderr]    Compiling nom v6.2.2
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling bitvec v0.19.6
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling regex v1.4.6
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling nom_locate v1.0.0
[INFO] [stderr]    Compiling nom_locate v2.1.0
[INFO] [stderr]    Compiling derive_more v0.99.20
[INFO] [stderr]    Compiling nom_locate v3.0.2
[INFO] [stderr]    Compiling nom-greedyerror v0.3.1
[INFO] [stderr]    Compiling nom-tracable-macros v0.7.0
[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 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_diagnostic)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TokenStreamExt` and `quote_spanned`
[INFO] [stdout]  --> src/lib.rs:9:34
[INFO] [stdout]   |
[INFO] [stdout] 9 | use quote::{format_ident, quote, quote_spanned, TokenStreamExt};
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[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 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "07aedf411f507fcf27a47d69f3cc2a77b9d814687f755fba3b474754cbcfaa19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07aedf411f507fcf27a47d69f3cc2a77b9d814687f755fba3b474754cbcfaa19", kill_on_drop: false }`
[INFO] [stdout] 07aedf411f507fcf27a47d69f3cc2a77b9d814687f755fba3b474754cbcfaa19