[INFO] fetching crate cosmoline 0.1.1...
[INFO] documenting cosmoline-0.1.1 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate cosmoline 0.1.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate cosmoline 0.1.1 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cosmoline 0.1.1
[INFO] finished tweaking crates.io crate cosmoline 0.1.1
[INFO] tweaked toml for crates.io crate cosmoline 0.1.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate cosmoline 0.1.1 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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded handlebars v4.1.0
[INFO] [stderr]   Downloaded semver v1.0.3
[INFO] [stderr]   Downloaded serde_derive v1.0.126
[INFO] [stderr]   Downloaded rustc-demangle v0.1.20
[INFO] [stderr]   Downloaded serde_json v1.0.64
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5b828c9169addc5342f3d6840a17e27d0428a730a19a7dbd220492a658d4583
[INFO] running `Command { std: "docker" "start" "-a" "f5b828c9169addc5342f3d6840a17e27d0428a730a19a7dbd220492a658d4583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5b828c9169addc5342f3d6840a17e27d0428a730a19a7dbd220492a658d4583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5b828c9169addc5342f3d6840a17e27d0428a730a19a7dbd220492a658d4583", kill_on_drop: false }`
[INFO] [stdout] f5b828c9169addc5342f3d6840a17e27d0428a730a19a7dbd220492a658d4583
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a359995b9897e6a030d62348ab170190af9e68ed3ef0e0e2c2bc4c5da4758c5
[INFO] running `Command { std: "docker" "start" "-a" "2a359995b9897e6a030d62348ab170190af9e68ed3ef0e0e2c2bc4c5da4758c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling semver v1.0.3
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking quick-error v2.0.1
[INFO] [stderr]     Checking rustc-demangle v0.1.20
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking handlebars v4.1.0
[INFO] [stderr]  Documenting cosmoline v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(destructuring_assignment)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `destructuring_assignment` has been stable since `1.59.0` and no longer requires an attribute to enable
[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 document `cosmoline`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name cosmoline src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=27cf8bb70f48249b -L dependency=/opt/rustwide/target/debug/deps --extern chrono=/opt/rustwide/target/debug/deps/libchrono-95f3a5d9c1bf2d6c.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-4a286b089a751789.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-9f68db9b680a94f3.rmeta --extern handlebars=/opt/rustwide/target/debug/deps/libhandlebars-6757d9bb869ea1de.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-cfdf503dbcd0d4be.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-d70ed253e4147aa3.rmeta --extern rustc_demangle=/opt/rustwide/target/debug/deps/librustc_demangle-ab27aad68c9478bf.rmeta --extern semver=/opt/rustwide/target/debug/deps/libsemver-f665d8bf6d93fa89.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-1fddd7be42df15dc.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-8554acf8616e2c0c.rmeta --cap-lints=warn --crate-version 0.1.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "2a359995b9897e6a030d62348ab170190af9e68ed3ef0e0e2c2bc4c5da4758c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a359995b9897e6a030d62348ab170190af9e68ed3ef0e0e2c2bc4c5da4758c5", kill_on_drop: false }`
[INFO] [stdout] 2a359995b9897e6a030d62348ab170190af9e68ed3ef0e0e2c2bc4c5da4758c5
