[INFO] fetching crate dtd-rs 0.1.0-alpha2...
[INFO] checking dtd-rs-0.1.0-alpha2 against 1.95.0 for pr-155915
[INFO] extracting crate dtd-rs 0.1.0-alpha2 into /workspace/builds/worker-6-tc1/source
[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-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate dtd-rs 0.1.0-alpha2 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bytecount v0.6.2
[INFO] [stderr]   Downloaded version_check v0.9.3
[INFO] [stderr]   Downloaded radium v0.5.3
[INFO] [stderr]   Downloaded dtd-parser v0.1.0-alpha3
[INFO] [stderr]   Downloaded memchr v2.3.4
[INFO] [stderr]   Downloaded ryu v1.0.5
[INFO] [stderr]   Downloaded nom_locate v3.0.2
[INFO] [stderr]   Downloaded convert_case v0.4.0
[INFO] [stderr]   Downloaded nom_locate v1.0.0
[INFO] [stderr]   Downloaded nom-tracable v0.7.0
[INFO] [stderr]   Downloaded rustc_version v0.3.3
[INFO] [stderr]   Downloaded nom-greedyerror v0.3.1
[INFO] [stderr]   Downloaded nom-tracable-macros v0.7.0
[INFO] [stderr]   Downloaded autocfg v1.0.1
[INFO] [stderr]   Downloaded dtd-macro v0.1.0-alpha2
[INFO] [stderr]   Downloaded semver-parser v0.10.2
[INFO] [stderr]   Downloaded semver v0.11.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.28
[INFO] [stderr]   Downloaded nom_locate v2.1.0
[INFO] [stderr]   Downloaded ucd-trie v0.1.3
[INFO] [stderr]   Downloaded derive_more v0.99.16
[INFO] [stderr]   Downloaded pest v2.1.3
[INFO] [stderr]   Downloaded aho-corasick v0.7.15
[INFO] [stderr]   Downloaded nom v6.2.1
[INFO] [stderr]   Downloaded indexmap v1.7.0
[INFO] [stderr]   Downloaded nom v5.1.2
[INFO] [stderr]   Downloaded bitvec v0.19.5
[INFO] [stderr]   Downloaded bytecount v0.3.2
[INFO] [stderr]   Downloaded regex v1.4.6
[INFO] [stderr]   Downloaded syn v1.0.74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11fc9325acfb586ee44aa516ca7a67c9d55e99cacb059c577fd6bd0168773f00
[INFO] running `Command { std: "docker" "start" "-a" "11fc9325acfb586ee44aa516ca7a67c9d55e99cacb059c577fd6bd0168773f00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11fc9325acfb586ee44aa516ca7a67c9d55e99cacb059c577fd6bd0168773f00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11fc9325acfb586ee44aa516ca7a67c9d55e99cacb059c577fd6bd0168773f00", kill_on_drop: false }`
[INFO] [stdout] 11fc9325acfb586ee44aa516ca7a67c9d55e99cacb059c577fd6bd0168773f00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8089a64fd80f94b71758cf9b9aa07bf17bdfbbd84fc8a5f66523186bb97b48bb
[INFO] running `Command { std: "docker" "start" "-a" "8089a64fd80f94b71758cf9b9aa07bf17bdfbbd84fc8a5f66523186bb97b48bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling version_check v0.9.3
[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 cfg-if v1.0.0
[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 tap v1.0.1
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling bytecount v0.6.2
[INFO] [stderr]    Compiling bytecount v0.3.2
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling nom v6.2.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bitvec v0.19.5
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling indexmap v1.7.0
[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]    Compiling nom-tracable-macros v0.7.0
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]     Checking nom_locate v3.0.2
[INFO] [stderr]     Checking nom-greedyerror v0.3.1
[INFO] [stderr]     Checking 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-1949cf8c6b5b557f/dtd-macro-0.1.0-alpha2/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_diagnostic)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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
[INFO] running `Command { std: "docker" "inspect" "8089a64fd80f94b71758cf9b9aa07bf17bdfbbd84fc8a5f66523186bb97b48bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8089a64fd80f94b71758cf9b9aa07bf17bdfbbd84fc8a5f66523186bb97b48bb", kill_on_drop: false }`
[INFO] [stdout] 8089a64fd80f94b71758cf9b9aa07bf17bdfbbd84fc8a5f66523186bb97b48bb
