[INFO] fetching crate mdbx 0.0.6...
[INFO] documenting mdbx-0.0.6 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate mdbx 0.0.6 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate mdbx 0.0.6 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 mdbx 0.0.6
[INFO] finished tweaking crates.io crate mdbx 0.0.6
[INFO] tweaked toml for crates.io crate mdbx 0.0.6 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate mdbx 0.0.6 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" "+1.69.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mdbx-proc v0.1.1
[INFO] [stderr]   Downloaded anyhow v1.0.51
[INFO] [stderr]   Downloaded mdbx-ffi v0.0.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 743f2d84f2bc43c39ea3c48310df5dc14db15b9baaeb04ec21170cef1eb73023
[INFO] running `Command { std: "docker" "start" "-a" "743f2d84f2bc43c39ea3c48310df5dc14db15b9baaeb04ec21170cef1eb73023", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "743f2d84f2bc43c39ea3c48310df5dc14db15b9baaeb04ec21170cef1eb73023", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "743f2d84f2bc43c39ea3c48310df5dc14db15b9baaeb04ec21170cef1eb73023", kill_on_drop: false }`
[INFO] [stdout] 743f2d84f2bc43c39ea3c48310df5dc14db15b9baaeb04ec21170cef1eb73023
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 3fd04d18b03179a58ab1af0356ffc3dfe5d8efa02dcbd906a7a540f7e1788438
[INFO] running `Command { std: "docker" "start" "-a" "3fd04d18b03179a58ab1af0356ffc3dfe5d8efa02dcbd906a7a540f7e1788438", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.34
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling bindgen v0.59.2
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling libloading v0.7.2
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling anyhow v1.0.51
[INFO] [stderr]    Compiling mdbx v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]    Compiling mdbx-proc v0.1.1
[INFO] [stderr]    Compiling paste v1.0.6
[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/mdbx-proc-0.1.1/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_span)]
[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 `mdbx-proc` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3fd04d18b03179a58ab1af0356ffc3dfe5d8efa02dcbd906a7a540f7e1788438", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fd04d18b03179a58ab1af0356ffc3dfe5d8efa02dcbd906a7a540f7e1788438", kill_on_drop: false }`
[INFO] [stdout] 3fd04d18b03179a58ab1af0356ffc3dfe5d8efa02dcbd906a7a540f7e1788438
