[INFO] fetching crate crsp 0.2.0...
[INFO] documenting crsp-0.2.0 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate crsp 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate crsp 0.2.0 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 crsp 0.2.0
[INFO] finished tweaking crates.io crate crsp 0.2.0
[INFO] tweaked toml for crates.io crate crsp 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate crsp 0.2.0 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
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[INFO] [stderr]   Downloaded spirv_cross v0.23.1
[INFO] [stderr]   Downloaded ash v0.32.1
[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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c3b1615d6e7cf5aec4c694d2813292c388b27a6d2fdd794379bf6c86be0d759
[INFO] running `Command { std: "docker" "start" "-a" "6c3b1615d6e7cf5aec4c694d2813292c388b27a6d2fdd794379bf6c86be0d759", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c3b1615d6e7cf5aec4c694d2813292c388b27a6d2fdd794379bf6c86be0d759", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c3b1615d6e7cf5aec4c694d2813292c388b27a6d2fdd794379bf6c86be0d759", kill_on_drop: false }`
[INFO] [stdout] 6c3b1615d6e7cf5aec4c694d2813292c388b27a6d2fdd794379bf6c86be0d759
[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" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22795d9055fbb030705bc5e086c5a79ad46b539c84617dcfb5bc0866d02131d8
[INFO] running `Command { std: "docker" "start" "-a" "22795d9055fbb030705bc5e086c5a79ad46b539c84617dcfb5bc0866d02131d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling libc v0.2.97
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[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking calloop v0.6.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling num_enum_derive v0.5.1
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling derive_more v0.99.14
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking wayland-cursor v0.28.6
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking naga v0.4.2
[INFO] [stderr]     Checking tracing-subscriber v0.2.19
[INFO] [stderr]     Checking pin-project v1.0.7
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[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking num_enum v0.5.1
[INFO] [stderr]     Checking crsp-base v0.2.0
[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/crsp-base-0.2.0/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(variant_count, step_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/crsp-base-0.2.0/src/lib.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(variant_count, step_trait)]
[INFO] [stdout]   |                           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crsp-base` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "22795d9055fbb030705bc5e086c5a79ad46b539c84617dcfb5bc0866d02131d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22795d9055fbb030705bc5e086c5a79ad46b539c84617dcfb5bc0866d02131d8", kill_on_drop: false }`
[INFO] [stdout] 22795d9055fbb030705bc5e086c5a79ad46b539c84617dcfb5bc0866d02131d8
