[INFO] cloning repository https://github.com/ForsakenHarmony/postbus
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ForsakenHarmony/postbus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FForsakenHarmony%2Fpostbus", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FForsakenHarmony%2Fpostbus'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 02c21a8297a752c036506fe333c7aa9de57be287
[INFO] documenting ForsakenHarmony/postbus against 1.47.0 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FForsakenHarmony%2Fpostbus" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ForsakenHarmony/postbus on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ForsakenHarmony/postbus
[INFO] removed path dependency stage from git repo https://github.com/ForsakenHarmony/postbus
[INFO] finished tweaking git repo https://github.com/ForsakenHarmony/postbus
[INFO] tweaked toml for git repo https://github.com/ForsakenHarmony/postbus written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/ForsakenHarmony/postbus already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (stage) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-11/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (stage) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bab1dc091a11ab020c0e6c254bcc17db17ae85b4b2ced14088ab9c1fa3d71717
[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" "bab1dc091a11ab020c0e6c254bcc17db17ae85b4b2ced14088ab9c1fa3d71717", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bab1dc091a11ab020c0e6c254bcc17db17ae85b4b2ced14088ab9c1fa3d71717", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bab1dc091a11ab020c0e6c254bcc17db17ae85b4b2ced14088ab9c1fa3d71717", kill_on_drop: false }`
[INFO] [stdout] bab1dc091a11ab020c0e6c254bcc17db17ae85b4b2ced14088ab9c1fa3d71717
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 84cd1ca4942436c00b7ee4afc5d5358b017cfc1e7fb5d9b9e4715e3545495323
[INFO] running `Command { std: "docker" "start" "-a" "84cd1ca4942436c00b7ee4afc5d5358b017cfc1e7fb5d9b9e4715e3545495323", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (stage) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Checking mio v0.7.3
[INFO] [stderr]     Checking serde-value v0.5.3
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling futures-async-stream-macro v0.1.5
[INFO] [stderr]    Compiling diesel_derives v1.4.1
[INFO] [stderr]    Compiling async-trait v0.1.41
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]     Checking futures-util v0.3.6
[INFO] [stderr]     Checking r2d2 v0.8.9
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking telegram-bot-async-raw v0.8.2
[INFO] [stderr]     Checking tracing-subscriber v0.2.13
[INFO] [stderr]     Checking dashmap v3.11.10
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking futures-async-stream v0.1.5
[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-async-stream-0.1.5/src/lib.rs:216:1
[INFO] [stdout]     |
[INFO] [stdout] 216 | #![feature(generator_trait)]
[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 `futures-async-stream`.
[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" "84cd1ca4942436c00b7ee4afc5d5358b017cfc1e7fb5d9b9e4715e3545495323", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84cd1ca4942436c00b7ee4afc5d5358b017cfc1e7fb5d9b9e4715e3545495323", kill_on_drop: false }`
[INFO] [stdout] 84cd1ca4942436c00b7ee4afc5d5358b017cfc1e7fb5d9b9e4715e3545495323
