[INFO] cloning repository https://github.com/dflemstr/precip
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dflemstr/precip" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdflemstr%2Fprecip", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdflemstr%2Fprecip'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5386785118d85a206da1adb986dacc50c716e2c6
[INFO] documenting dflemstr/precip 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%2Fdflemstr%2Fprecip" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dflemstr/precip 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/dflemstr/precip
[INFO] finished tweaking git repo https://github.com/dflemstr/precip
[INFO] tweaked toml for git repo https://github.com/dflemstr/precip written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/dflemstr/precip 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]     Updating git repository `https://github.com/dflemstr/i2cdev-sensors.git`
[INFO] [stderr]     Updating git repository `https://github.com/dflemstr/influent.rs.git`
[INFO] [stderr]     Updating git submodule `git://github.com/gobwas/influent.rs.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-uds v0.2.2
[INFO] [stderr]   Downloaded serde_json v1.0.32
[INFO] [stderr]   Downloaded indexmap v1.0.1
[INFO] [stderr]   Downloaded syn v0.14.9
[INFO] [stderr]   Downloaded synstructure v0.9.0
[INFO] [stderr]   Downloaded aho-corasick v0.6.8
[INFO] [stderr]   Downloaded gcc v0.3.55
[INFO] [stderr]   Downloaded tokio-current-thread v0.1.3
[INFO] [stderr]   Downloaded crossbeam-epoch v0.5.2
[INFO] [stderr]   Downloaded smallvec v0.6.5
[INFO] [stderr]   Downloaded memchr v2.1.0
[INFO] [stderr]   Downloaded nix v0.10.0
[INFO] [stderr]   Downloaded skeptic v0.13.3
[INFO] [stderr]   Downloaded safemem v0.2.0
[INFO] [stderr]   Downloaded serde-hjson v0.8.1
[INFO] [stderr]   Downloaded rand v0.4.3
[INFO] [stderr]   Downloaded structopt-derive v0.2.11
[INFO] [stderr]   Downloaded walkdir v2.2.5
[INFO] [stderr]   Downloaded proc-macro2 v0.4.20
[INFO] [stderr]   Downloaded hyper v0.10.13
[INFO] [stderr]   Downloaded block-buffer v0.3.3
[INFO] [stderr]   Downloaded http v0.1.13
[INFO] [stderr]   Downloaded rusoto_credential v0.13.0
[INFO] [stderr]   Downloaded failure_derive v0.1.2
[INFO] [stderr]   Downloaded hyper v0.12.11
[INFO] [stderr]   Downloaded crossbeam v0.3.2
[INFO] [stderr]   Downloaded native-tls v0.2.1
[INFO] [stderr]   Downloaded base64 v0.6.0
[INFO] [stderr]   Downloaded rust-ini v0.12.2
[INFO] [stderr]   Downloaded yaml-rust v0.4.2
[INFO] [stderr]   Downloaded qutex v0.2.1
[INFO] [stderr]   Downloaded same-file v1.0.3
[INFO] [stderr]   Downloaded bitfield-register-macro v0.2.1
[INFO] [stderr]   Downloaded backtrace v0.3.9
[INFO] [stderr]   Downloaded url v1.7.1
[INFO] [stderr]   Downloaded rustc-demangle v0.1.9
[INFO] [stderr]   Downloaded slog-stdlog v3.0.2
[INFO] [stderr]   Downloaded synom v0.11.3
[INFO] [stderr]   Downloaded syn v0.11.11
[INFO] [stderr]   Downloaded either v1.5.0
[INFO] [stderr]   Downloaded slog v2.4.1
[INFO] [stderr]   Downloaded backtrace-sys v0.1.24
[INFO] [stderr]   Downloaded ucd-util v0.1.1
[INFO] [stderr]   Downloaded pulldown-cmark v0.1.2
[INFO] [stderr]   Downloaded traitobject v0.1.0
[INFO] [stderr]   Downloaded typeable v0.1.2
[INFO] [stderr]   Downloaded crypto-mac v0.5.2
[INFO] [stderr]   Downloaded crossbeam v0.2.12
[INFO] [stderr]   Downloaded libc v0.2.43
[INFO] [stderr]   Downloaded strsim v0.7.0
[INFO] [stderr]   Downloaded cargo_metadata v0.5.8
[INFO] [stderr]   Downloaded hmac v0.5.0
[INFO] [stderr]   Downloaded linked-hash-map v0.5.1
[INFO] [stderr]   Downloaded glob v0.2.11
[INFO] [stderr]   Downloaded quote v0.3.15
[INFO] [stderr]   Downloaded constant_time_eq v0.1.3
[INFO] [stderr]   Downloaded string v0.1.1
[INFO] [stderr]   Downloaded structopt v0.2.11
[INFO] [stderr]   Downloaded xml-rs v0.7.0
[INFO] [stderr]   Downloaded utf8-ranges v1.0.1
[INFO] [stderr]   Downloaded openssl v0.10.12
[INFO] [stderr]   Downloaded itertools v0.7.8
[INFO] [stderr]   Downloaded config v0.9.1
[INFO] [stderr]   Downloaded failure v0.1.2
[INFO] [stderr]   Downloaded cron v0.6.0
[INFO] [stderr]   Downloaded futures-await-async-macro v0.1.4
[INFO] [stderr]   Downloaded libsystemd-sys v0.0.10
[INFO] [stderr]   Downloaded bitfield-register v0.2.1
[INFO] [stderr]   Downloaded tokio-fs v0.1.3
[INFO] [stderr]   Downloaded ads1x15 v0.5.0
[INFO] [stderr]   Downloaded futures-await v0.1.1
[INFO] [stderr]   Downloaded nom v4.1.0
[INFO] [stderr]   Downloaded toml v0.4.8
[INFO] [stderr]   Downloaded quote v0.6.8
[INFO] [stderr]   Downloaded rusoto_s3 v0.34.0
[INFO] [stderr]   Downloaded slog-envlogger v2.1.0
[INFO] [stderr]   Downloaded futures-await-await-macro v0.1.1
[INFO] [stderr]   Downloaded i2cdev v0.4.0
[INFO] [stderr]   Downloaded slog-async v2.3.0
[INFO] [stderr]   Downloaded slog-journald v2.0.0
[INFO] [stderr]   Downloaded redox_users v0.2.0
[INFO] [stderr]   Downloaded clap v2.32.0
[INFO] [stderr]   Downloaded regex-syntax v0.5.6
[INFO] [stderr]   Downloaded regex v0.2.11
[INFO] [stderr]   Downloaded tokio-reactor v0.1.6
[INFO] [stderr]   Downloaded cfg-if v0.1.5
[INFO] [stderr]   Downloaded blake2-rfc v0.2.18
[INFO] [stderr]   Downloaded ryu v0.2.6
[INFO] [stderr]   Downloaded byte-tools v0.2.0
[INFO] [stderr]   Downloaded isatty v0.1.9
[INFO] [stderr]   Downloaded slog-term v2.4.0
[INFO] [stderr]   Downloaded textwrap v0.10.0
[INFO] [stderr]   Downloaded error-chain v0.10.0
[INFO] [stderr]   Downloaded unicode-xid v0.0.4
[INFO] [stderr]   Downloaded syn v0.15.9
[INFO] [stderr]   Downloaded lock_api v0.1.4
[INFO] [stderr]   Downloaded termion v1.5.1
[INFO] [stderr]   Downloaded atty v0.2.11
[INFO] [stderr]   Downloaded tokio-udp v0.1.2
[INFO] [stderr]   Downloaded tokio-timer v0.2.7
[INFO] [stderr]   Downloaded lazy_static v1.1.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.5.0
[INFO] [stderr]   Downloaded owning_ref v0.3.3
[INFO] [stderr]   Downloaded tokio-io v0.1.9
[INFO] [stderr]   Downloaded bytes v0.4.10
[INFO] [stderr]   Downloaded log v0.4.5
[INFO] [stderr]   Downloaded openssl-sys v0.9.36
[INFO] [stderr]   Downloaded tokio v0.1.11
[INFO] [stderr]   Downloaded bytecount v0.3.2
[INFO] [stderr]   Downloaded error-chain v0.11.0
[INFO] [stderr]   Downloaded serde_derive v1.0.79
[INFO] [stderr]   Downloaded md5 v0.3.8
[INFO] [stderr]   Downloaded slog-scope v4.0.1
[INFO] [stderr]   Downloaded dirs v1.0.4
[INFO] [stderr]   Downloaded sysfs_gpio v0.5.3
[INFO] [stderr]   Downloaded digest v0.7.6
[INFO] [stderr]   Downloaded generic-array v0.9.0
[INFO] [stderr]   Downloaded redox_termios v0.1.1
[INFO] [stderr]   Downloaded redox_syscall v0.1.40
[INFO] [stderr]   Downloaded unicode-width v0.1.5
[INFO] [stderr]   Downloaded serde v1.0.79
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.7
[INFO] [stderr]   Downloaded nodrop v0.1.12
[INFO] [stderr]   Downloaded crossbeam-deque v0.6.1
[INFO] [stderr]   Downloaded nom v2.1.0
[INFO] [stderr]   Downloaded winapi-util v0.1.1
[INFO] [stderr]   Downloaded argon2rs v0.2.5
[INFO] [stderr]   Downloaded language-tags v0.2.2
[INFO] [stderr]   Downloaded h2 v0.1.12
[INFO] [stderr]   Downloaded sha2 v0.7.1
[INFO] [stderr]   Downloaded rusoto_core v0.34.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 3bdeb6999959f0a37cd883df8fd7b69ae1d145a5169d85412de534a8f45b322d
[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" "3bdeb6999959f0a37cd883df8fd7b69ae1d145a5169d85412de534a8f45b322d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bdeb6999959f0a37cd883df8fd7b69ae1d145a5169d85412de534a8f45b322d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bdeb6999959f0a37cd883df8fd7b69ae1d145a5169d85412de534a8f45b322d", kill_on_drop: false }`
[INFO] [stdout] 3bdeb6999959f0a37cd883df8fd7b69ae1d145a5169d85412de534a8f45b322d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 4d739499eb1e0a371f00dbba0678ad343ddf187ef8ba2a64dedde6d40098c829
[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" "4d739499eb1e0a371f00dbba0678ad343ddf187ef8ba2a64dedde6d40098c829", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]     Checking lazycell v1.2.0
[INFO] [stderr]    Compiling cfg-if v0.1.5
[INFO] [stderr]    Compiling rustc-demangle v0.1.9
[INFO] [stderr]    Compiling same-file v1.0.3
[INFO] [stderr]    Compiling bytecount v0.3.2
[INFO] [stderr]    Compiling openssl v0.10.12
[INFO] [stderr]    Compiling native-tls v0.2.1
[INFO] [stderr]     Checking futures-await-await-macro v0.1.1
[INFO] [stderr]     Checking nom v2.1.0
[INFO] [stderr]     Checking i2csensors v0.1.3 (https://github.com/dflemstr/i2cdev-sensors.git?branch=upgrade-i2cdev#a9a69944)
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking dirs v1.0.4
[INFO] [stderr]    Compiling libsystemd-sys v0.0.10
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]    Compiling openssl-sys v0.9.36
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]     Checking yaml-rust v0.4.2
[INFO] [stderr]     Checking qutex v0.2.1
[INFO] [stderr]     Checking bytes v0.4.10
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]    Compiling serde v1.0.79
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]    Compiling walkdir v2.2.5
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]     Checking tokio-timer v0.2.7
[INFO] [stderr]     Checking tokio-current-thread v0.1.3
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking toml v0.4.8
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking slog-scope v4.0.1
[INFO] [stderr]    Compiling bitfield-register-macro v0.2.1
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]     Checking thread-id v2.0.0
[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/bitfield-register-macro-0.2.1/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tokio-io v0.1.9
[INFO] [stderr]     Checking http v0.1.13
[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 `bitfield-register-macro`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "4d739499eb1e0a371f00dbba0678ad343ddf187ef8ba2a64dedde6d40098c829", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d739499eb1e0a371f00dbba0678ad343ddf187ef8ba2a64dedde6d40098c829", kill_on_drop: false }`
[INFO] [stdout] 4d739499eb1e0a371f00dbba0678ad343ddf187ef8ba2a64dedde6d40098c829