[INFO] fetching crate quix-build 0.0.6...
[INFO] documenting quix-build-0.0.6 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate quix-build 0.0.6 into /workspace/builds/worker-80/source
[INFO] validating manifest of crates.io crate quix-build 0.0.6 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate quix-build 0.0.6
[INFO] finished tweaking crates.io crate quix-build 0.0.6
[INFO] tweaked toml for crates.io crate quix-build 0.0.6 written to /workspace/builds/worker-80/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ff19a2e539154f6edcece362b942900beb8541699527985cbbeedc02f6ecc78
[INFO] running `Command { std: "docker" "start" "-a" "2ff19a2e539154f6edcece362b942900beb8541699527985cbbeedc02f6ecc78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ff19a2e539154f6edcece362b942900beb8541699527985cbbeedc02f6ecc78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ff19a2e539154f6edcece362b942900beb8541699527985cbbeedc02f6ecc78", kill_on_drop: false }`
[INFO] [stdout] 2ff19a2e539154f6edcece362b942900beb8541699527985cbbeedc02f6ecc78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a6bef41a81f06109678e75fd8906bf2ab393312771468031df0c34b0973d75f
[INFO] running `Command { std: "docker" "start" "-a" "5a6bef41a81f06109678e75fd8906bf2ab393312771468031df0c34b0973d75f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking unicode-segmentation v1.8.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking multimap v0.8.3
[INFO] [stderr]     Checking crc64 v1.0.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking proc-macro2 v1.0.28
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking heck v0.3.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]     Checking prost v0.6.1
[INFO] [stderr]     Checking prost-types v0.6.1
[INFO] [stderr]  Documenting quix-build v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(format_args_capture)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[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 document `quix-build`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name quix_build src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern crc64=/opt/rustwide/target/debug/deps/libcrc64-943cb8250b60f439.rmeta --extern prost_build=/opt/rustwide/target/debug/deps/libprost_build-f44d74dbc6b1da28.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-dc7cbb122f009b6c.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-2b184b2fce60ca1a.rmeta --cap-lints=warn --crate-version 0.0.6` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "5a6bef41a81f06109678e75fd8906bf2ab393312771468031df0c34b0973d75f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a6bef41a81f06109678e75fd8906bf2ab393312771468031df0c34b0973d75f", kill_on_drop: false }`
[INFO] [stdout] 5a6bef41a81f06109678e75fd8906bf2ab393312771468031df0c34b0973d75f
