[INFO] fetching crate fuzzcheck_serde_json_generator 0.1.1...
[INFO] documenting fuzzcheck_serde_json_generator-0.1.1 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate fuzzcheck_serde_json_generator 0.1.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate fuzzcheck_serde_json_generator 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 fuzzcheck_serde_json_generator 0.1.1
[INFO] finished tweaking crates.io crate fuzzcheck_serde_json_generator 0.1.1
[INFO] tweaked toml for crates.io crate fuzzcheck_serde_json_generator 0.1.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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 nu-ansi-term v0.39.0
[INFO] [stderr]   Downloaded fuzzcheck_common v0.12.0
[INFO] [stderr]   Downloaded fuzzcheck_mutators_derive v0.12.0
[INFO] [stderr]   Downloaded fuzzcheck v0.12.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 8bf43c726732fa30608e66261812e808ccc40b3facaebaa8ba1b8bc68895b42f
[INFO] running `Command { std: "docker" "start" "-a" "8bf43c726732fa30608e66261812e808ccc40b3facaebaa8ba1b8bc68895b42f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8bf43c726732fa30608e66261812e808ccc40b3facaebaa8ba1b8bc68895b42f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bf43c726732fa30608e66261812e808ccc40b3facaebaa8ba1b8bc68895b42f", kill_on_drop: false }`
[INFO] [stdout] 8bf43c726732fa30608e66261812e808ccc40b3facaebaa8ba1b8bc68895b42f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] ec2a7be6d2db76a2a85053bb522ccd05722b8c13b45523a1d3f8594ae473c708
[INFO] running `Command { std: "docker" "start" "-a" "ec2a7be6d2db76a2a85053bb522ccd05722b8c13b45523a1d3f8594ae473c708", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking getrandom v0.2.9
[INFO] [stderr]    Compiling fuzzcheck v0.12.1
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]     Checking nu-ansi-term v0.39.0
[INFO] [stderr]     Checking fuzzcheck_common v0.12.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/fuzzcheck_common-0.12.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(no_coverage)]
[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 `fuzzcheck_common` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ec2a7be6d2db76a2a85053bb522ccd05722b8c13b45523a1d3f8594ae473c708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec2a7be6d2db76a2a85053bb522ccd05722b8c13b45523a1d3f8594ae473c708", kill_on_drop: false }`
[INFO] [stdout] ec2a7be6d2db76a2a85053bb522ccd05722b8c13b45523a1d3f8594ae473c708
