[INFO] fetching crate michelangelo 0.2.5...
[INFO] documenting michelangelo-0.2.5 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate michelangelo 0.2.5 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate michelangelo 0.2.5 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate michelangelo 0.2.5
[INFO] finished tweaking crates.io crate michelangelo 0.2.5
[INFO] tweaked toml for crates.io crate michelangelo 0.2.5 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded primal v0.2.3
[INFO] [stderr]   Downloaded simple_allocator_trait v0.1.0
[INFO] [stderr]   Downloaded sid v0.5.2
[INFO] [stderr]   Downloaded primal-check v0.2.3
[INFO] [stderr]   Downloaded primal-bit v0.2.4
[INFO] [stderr]   Downloaded primal-estimate v0.2.1
[INFO] [stderr]   Downloaded compact_macros v0.1.0
[INFO] [stderr]   Downloaded bit-vec v0.5.1
[INFO] [stderr]   Downloaded compact v0.2.16
[INFO] [stderr]   Downloaded descartes v0.1.20
[INFO] [stderr]   Downloaded hamming v0.1.3
[INFO] [stderr]   Downloaded stable-vec v0.3.2
[INFO] [stderr]   Downloaded nalgebra v0.20.0
[INFO] [stderr]   Downloaded primal-sieve v0.2.9
[INFO] [stderr]   Downloaded lyon_tessellation v0.11.0
[INFO] [stderr]   Downloaded lyon_path v0.11.0
[INFO] [stderr]   Downloaded lyon_geom v0.11.1
[INFO] [stderr]   Downloaded euclid v0.18.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4578a1e73e9685ff8a7fd0c8b1a37850b39228c36ecb2b992ea17435ed78bcbe
[INFO] running `Command { std: "docker" "start" "-a" "4578a1e73e9685ff8a7fd0c8b1a37850b39228c36ecb2b992ea17435ed78bcbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4578a1e73e9685ff8a7fd0c8b1a37850b39228c36ecb2b992ea17435ed78bcbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4578a1e73e9685ff8a7fd0c8b1a37850b39228c36ecb2b992ea17435ed78bcbe", kill_on_drop: false }`
[INFO] [stdout] 4578a1e73e9685ff8a7fd0c8b1a37850b39228c36ecb2b992ea17435ed78bcbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0dab6c0d69ab86964a5201fa6e4c8f93bb828898eaea605af99af68ac023cafc
[INFO] running `Command { std: "docker" "start" "-a" "0dab6c0d69ab86964a5201fa6e4c8f93bb828898eaea605af99af68ac023cafc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking hamming v0.1.3
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking primal-bit v0.2.4
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking primal-estimate v0.2.1
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking primal-sieve v0.2.9
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking simple_allocator_trait v0.1.0
[INFO] [stderr]     Checking stable-vec v0.3.2
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking euclid v0.18.2
[INFO] [stderr]     Checking ordered-float v0.5.2
[INFO] [stderr]     Checking sid v0.5.2
[INFO] [stderr]     Checking primal-check v0.2.3
[INFO] [stderr]    Compiling compact_macros v0.1.0
[INFO] [stderr]     Checking primal v0.2.3
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]     Checking compact v0.2.16
[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/compact-0.2.16/src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(specialization)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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 `compact` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "0dab6c0d69ab86964a5201fa6e4c8f93bb828898eaea605af99af68ac023cafc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dab6c0d69ab86964a5201fa6e4c8f93bb828898eaea605af99af68ac023cafc", kill_on_drop: false }`
[INFO] [stdout] 0dab6c0d69ab86964a5201fa6e4c8f93bb828898eaea605af99af68ac023cafc
