[INFO] fetching crate dtd-macro 0.1.0-alpha2...
[INFO] testing dtd-macro-0.1.0-alpha2 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate dtd-macro 0.1.0-alpha2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate dtd-macro 0.1.0-alpha2 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03fd1f3084aae54c7a33b9db350b09eb05653c96d5f66c48c1af341ec44b49b7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "03fd1f3084aae54c7a33b9db350b09eb05653c96d5f66c48c1af341ec44b49b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03fd1f3084aae54c7a33b9db350b09eb05653c96d5f66c48c1af341ec44b49b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03fd1f3084aae54c7a33b9db350b09eb05653c96d5f66c48c1af341ec44b49b7", kill_on_drop: false }`
[INFO] [stdout] 03fd1f3084aae54c7a33b9db350b09eb05653c96d5f66c48c1af341ec44b49b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4ab38ebfec25ef7fe0350e922f15586e6b7accd2ab5fc8d3556d605ea7091193
[INFO] running `Command { std: "docker" "start" "-a" "4ab38ebfec25ef7fe0350e922f15586e6b7accd2ab5fc8d3556d605ea7091193", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling bytecount v0.6.2
[INFO] [stderr]    Compiling bytecount v0.3.2
[INFO] [stderr]    Compiling nom v6.2.1
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling bitvec v0.19.6
[INFO] [stderr]    Compiling regex v1.4.6
[INFO] [stderr]    Compiling quote v1.0.15
[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 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 derive_more v0.99.17
[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] warning: unused imports: `TokenStreamExt`, `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] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> 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; 1 warning emitted
[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` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "4ab38ebfec25ef7fe0350e922f15586e6b7accd2ab5fc8d3556d605ea7091193", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ab38ebfec25ef7fe0350e922f15586e6b7accd2ab5fc8d3556d605ea7091193", kill_on_drop: false }`
[INFO] [stdout] 4ab38ebfec25ef7fe0350e922f15586e6b7accd2ab5fc8d3556d605ea7091193