[INFO] fetching crate syndicate-macros 0.25.0...
[INFO] documenting syndicate-macros-0.25.0 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate syndicate-macros 0.25.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate syndicate-macros 0.25.0 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 syndicate-macros 0.25.0
[INFO] finished tweaking crates.io crate syndicate-macros 0.25.0
[INFO] tweaked toml for crates.io crate syndicate-macros 0.25.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate syndicate-macros 0.25.0 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 syndicate v0.30.0
[INFO] [stderr]   Downloaded preserves-schema v4.991.0
[INFO] [stderr]   Downloaded preserves v4.991.0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72e70c2a88b19f5bd870d2f67c4139dfda0de665d5efcee9e8eb523463818aaa
[INFO] running `Command { std: "docker" "start" "-a" "72e70c2a88b19f5bd870d2f67c4139dfda0de665d5efcee9e8eb523463818aaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72e70c2a88b19f5bd870d2f67c4139dfda0de665d5efcee9e8eb523463818aaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72e70c2a88b19f5bd870d2f67c4139dfda0de665d5efcee9e8eb523463818aaa", kill_on_drop: false }`
[INFO] [stdout] 72e70c2a88b19f5bd870d2f67c4139dfda0de665d5efcee9e8eb523463818aaa
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/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] c6a2eeb77dfc23ce1b91c2f7cc135ac40bcdb080771f5bf9a6ad7e3c34a85ecc
[INFO] running `Command { std: "docker" "start" "-a" "c6a2eeb77dfc23ce1b91c2f7cc135ac40bcdb080771f5bf9a6ad7e3c34a85ecc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling thiserror v1.0.49
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling aho-corasick v1.1.1
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling regex-syntax v0.7.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling num-complex v0.4.4
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling num v0.4.1
[INFO] [stderr]    Compiling regex-automata v0.3.9
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling dtoa v0.4.8
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking crypto-common v0.1.6
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[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking smallvec v1.11.1
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]    Compiling regex v1.9.6
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling thiserror-impl v1.0.49
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]    Compiling structopt v0.3.26
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking tokio v1.32.0
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking blake2 v0.10.6
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking pin-project v1.1.3
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking tokio-util v0.6.10
[INFO] [stderr]     Checking serde_bytes v0.11.12
[INFO] [stderr]     Checking tracing-serde v0.1.3
[INFO] [stderr]     Checking preserves v4.991.0
[INFO] [stderr]     Checking tracing-subscriber v0.2.25
[INFO] [stderr]     Checking preserves-schema v4.991.0
[INFO] [stderr]    Compiling syndicate v0.30.0
[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/syndicate-0.30.0/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(min_specialization)]
[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 `syndicate` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "c6a2eeb77dfc23ce1b91c2f7cc135ac40bcdb080771f5bf9a6ad7e3c34a85ecc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6a2eeb77dfc23ce1b91c2f7cc135ac40bcdb080771f5bf9a6ad7e3c34a85ecc", kill_on_drop: false }`
[INFO] [stdout] c6a2eeb77dfc23ce1b91c2f7cc135ac40bcdb080771f5bf9a6ad7e3c34a85ecc
