[INFO] cloning repository https://github.com/dskleingeld/sensor_central
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dskleingeld/sensor_central" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdskleingeld%2Fsensor_central", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdskleingeld%2Fsensor_central'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] feaaadb8ea97d8b52630ef70a8c8810fde2a7049
[INFO] documenting dskleingeld/sensor_central against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdskleingeld%2Fsensor_central" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dskleingeld/sensor_central on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dskleingeld/sensor_central
[INFO] finished tweaking git repo https://github.com/dskleingeld/sensor_central
[INFO] tweaked toml for git repo https://github.com/dskleingeld/sensor_central written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/dskleingeld/sensor_central already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a1277dbd6496a2ba095de48ae7f2d3d6cfb73c29baa060a5b9db3be41f5d2313
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a1277dbd6496a2ba095de48ae7f2d3d6cfb73c29baa060a5b9db3be41f5d2313", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1277dbd6496a2ba095de48ae7f2d3d6cfb73c29baa060a5b9db3be41f5d2313", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1277dbd6496a2ba095de48ae7f2d3d6cfb73c29baa060a5b9db3be41f5d2313", kill_on_drop: false }`
[INFO] [stdout] a1277dbd6496a2ba095de48ae7f2d3d6cfb73c29baa060a5b9db3be41f5d2313
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df068e1c98e181612ada1ec17b04cbc89dfbb6fc0572a073d77be17295cd00b3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "df068e1c98e181612ada1ec17b04cbc89dfbb6fc0572a073d77be17295cd00b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking subtle v2.2.3
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking bitflags v0.3.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]     Checking fern v0.6.0
[INFO] [stderr]     Checking embedded-hal v0.2.4
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking bme280 v0.1.2
[INFO] [stderr]     Checking block-cipher v0.7.1
[INFO] [stderr]     Checking universal-hash v0.4.0
[INFO] [stderr]     Checking aead v0.3.2
[INFO] [stderr]     Checking aes-soft v0.4.0
[INFO] [stderr]     Checking polyval v0.4.0
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking ghash v0.3.0
[INFO] [stderr]     Checking aes v0.4.0
[INFO] [stderr]     Checking aes-gcm v0.6.0
[INFO] [stderr]     Checking num-complex v0.3.0
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking clap v2.33.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking num v0.3.0
[INFO] [stderr]     Checking spidev v0.3.0
[INFO] [stderr]     Checking i2cdev v0.4.4
[INFO] [stderr]     Checking sysfs_gpio v0.5.4
[INFO] [stderr]     Checking gpio-cdev v0.3.0 (https://github.com/rust-embedded/gpio-cdev#448d6fd1)
[INFO] [stderr]     Checking linux-embedded-hal v0.2.2
[INFO] [stderr]     Checking rustbus v0.6.0
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling structopt-derive v0.4.9
[INFO] [stderr]     Checking bluebus v0.2.0 (https://github.com/dskleingeld/bluebus#71914944)
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking structopt v0.3.16
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking serde v1.0.115
[INFO] [stderr]     Checking hyper v0.13.7
[INFO] [stderr]     Checking serde_yaml v0.8.13
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking bitspec v0.1.0 (https://github.com/dskleingeld/bitspec#015cf948)
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.7
[INFO] [stderr]  Documenting sensor_central v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(drain_filter)]
[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 `sensor_central`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name sensor_central src/main.rs -o /opt/rustwide/target/doc --cfg 'feature="aes-gcm"' --cfg 'feature="ble"' --cfg 'feature="bluebus"' --cfg 'feature="default"' --cfg 'feature="gpio-cdev"' --cfg 'feature="local"' --cfg 'feature="rand"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern aes_gcm=/opt/rustwide/target/debug/deps/libaes_gcm-acde547c7dd78872.rmeta --extern bincode=/opt/rustwide/target/debug/deps/libbincode-eeb1368c8797c03c.rmeta --extern bitspec=/opt/rustwide/target/debug/deps/libbitspec-3602562a9dd2d80a.rmeta --extern bluebus=/opt/rustwide/target/debug/deps/libbluebus-9e5abc8dd3f228a7.rmeta --extern bme280=/opt/rustwide/target/debug/deps/libbme280-9283674eb225e9de.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-cdbbc07100f440a1.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-462bb00988b77200.rmeta --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-71fd5a9e7bd99284.rmeta --extern fern=/opt/rustwide/target/debug/deps/libfern-02c614db1a06a827.rmeta --extern gpio_cdev=/opt/rustwide/target/debug/deps/libgpio_cdev-4597f9a89273b5cb.rmeta --extern linux_embedded_hal=/opt/rustwide/target/debug/deps/liblinux_embedded_hal-1405021bd715fe56.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-958bf2a074a4960f.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-955921e2b5f93252.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-aa1a548946d31bf1.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-bb394c48d995da2a.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-e1b6b59c513e621d.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-11630864c820a91e.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-c48efb3b4c0fd99f.rmeta --extern smallvec=/opt/rustwide/target/debug/deps/libsmallvec-6511d81a3fb95ca0.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-725dbce04a7550db.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-eaadbf57e18c1d1b.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "df068e1c98e181612ada1ec17b04cbc89dfbb6fc0572a073d77be17295cd00b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df068e1c98e181612ada1ec17b04cbc89dfbb6fc0572a073d77be17295cd00b3", kill_on_drop: false }`
[INFO] [stdout] df068e1c98e181612ada1ec17b04cbc89dfbb6fc0572a073d77be17295cd00b3