[INFO] cloning repository https://github.com/anlumo/cellardoor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anlumo/cellardoor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanlumo%2Fcellardoor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanlumo%2Fcellardoor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c3445dda52e4690afc0063990c312e53e8f01448
[INFO] documenting anlumo/cellardoor against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanlumo%2Fcellardoor" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anlumo/cellardoor on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/anlumo/cellardoor
[INFO] finished tweaking git repo https://github.com/anlumo/cellardoor
[INFO] tweaked toml for git repo https://github.com/anlumo/cellardoor written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/anlumo/cellardoor already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/Peltoche/ical-rs`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redis v0.10.0
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.12
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.4
[INFO] [stderr]   Downloaded tokio-current-thread v0.1.5
[INFO] [stderr]   Downloaded hyper v0.12.25
[INFO] [stderr]   Downloaded ascii v0.9.1
[INFO] [stderr]   Downloaded tokio v0.1.17
[INFO] [stderr]   Downloaded futures-preview v0.3.0-alpha.13
[INFO] [stderr]   Downloaded futures-sink-preview v0.3.0-alpha.13
[INFO] [stderr]   Downloaded futures-executor-preview v0.3.0-alpha.13
[INFO] [stderr]   Downloaded futures-select-macro-preview v0.3.0-alpha.13
[INFO] [stderr]   Downloaded futures-channel-preview v0.3.0-alpha.13
[INFO] [stderr]   Downloaded tokio-async-await v0.1.6
[INFO] [stderr]   Downloaded futures-util-preview v0.3.0-alpha.13
[INFO] [stderr]   Downloaded futures-io-preview v0.3.0-alpha.13
[INFO] [stderr]   Downloaded websocket v0.22.3
[INFO] [stderr]   Downloaded futures-core-preview v0.3.0-alpha.13
[INFO] [stderr]   Downloaded curl v0.4.20
[INFO] [stderr]   Downloaded curl-sys v0.4.17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee9b4cee9e8dfde0ee00138d76e0433a01e60dc66e48508c3d0bdf9b61c61b22
[INFO] running `Command { std: "docker" "start" "-a" "ee9b4cee9e8dfde0ee00138d76e0433a01e60dc66e48508c3d0bdf9b61c61b22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee9b4cee9e8dfde0ee00138d76e0433a01e60dc66e48508c3d0bdf9b61c61b22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee9b4cee9e8dfde0ee00138d76e0433a01e60dc66e48508c3d0bdf9b61c61b22", kill_on_drop: false }`
[INFO] [stdout] ee9b4cee9e8dfde0ee00138d76e0433a01e60dc66e48508c3d0bdf9b61c61b22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4508d2ccf3557eb2d2b060eaec0b35d9018e25c7be13a8116d6e64f08355c611
[INFO] running `Command { std: "docker" "start" "-a" "4508d2ccf3557eb2d2b060eaec0b35d9018e25c7be13a8116d6e64f08355c611", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking futures v0.1.25
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling cc v1.0.31
[INFO] [stderr]     Checking smallvec v0.6.9
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking either v1.5.1
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling httparse v1.3.3
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling regex v1.1.2
[INFO] [stderr]    Compiling openssl v0.10.19
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]     Checking safemem v0.3.0
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking ascii v0.9.1
[INFO] [stderr]    Compiling redis v0.10.0
[INFO] [stderr]     Checking termcolor v1.0.4
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]     Checking rustc-demangle v0.1.13
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking indexmap v1.0.2
[INFO] [stderr]     Checking string v0.1.3
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[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/futures-0.1.25/src/lib.rs:161:42
[INFO] [stdout]     |
[INFO] [stdout] 161 | #![cfg_attr(feature = "nightly", feature(pin))]
[INFO] [stdout]     |                                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures` due to 2 previous errors
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4508d2ccf3557eb2d2b060eaec0b35d9018e25c7be13a8116d6e64f08355c611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4508d2ccf3557eb2d2b060eaec0b35d9018e25c7be13a8116d6e64f08355c611", kill_on_drop: false }`
[INFO] [stdout] 4508d2ccf3557eb2d2b060eaec0b35d9018e25c7be13a8116d6e64f08355c611