[INFO] fetching crate slimproto 0.1.3...
[INFO] documenting slimproto-0.1.3 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate slimproto 0.1.3 into /workspace/builds/worker-36/source
[INFO] validating manifest of crates.io crate slimproto 0.1.3 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slimproto 0.1.3
[INFO] finished tweaking crates.io crate slimproto 0.1.3
[INFO] tweaked toml for crates.io crate slimproto 0.1.3 written to /workspace/builds/worker-36/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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" "+1.54.0" "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 proc-macro2 v1.0.28
[INFO] [stderr]   Downloaded miow v0.3.7
[INFO] [stderr]   Downloaded futures-core v0.3.16
[INFO] [stderr]   Downloaded bytes v1.0.1
[INFO] [stderr]   Downloaded futures-io v0.3.16
[INFO] [stderr]   Downloaded tokio v1.9.0
[INFO] [stderr]   Downloaded nix v0.22.0
[INFO] [stderr]   Downloaded futures-macro v0.3.16
[INFO] [stderr]   Downloaded futures-task v0.3.16
[INFO] [stderr]   Downloaded memchr v2.4.0
[INFO] [stderr]   Downloaded futures-util v0.3.16
[INFO] [stderr]   Downloaded futures-executor v0.3.16
[INFO] [stderr]   Downloaded pin-utils v0.1.0
[INFO] [stderr]   Downloaded tokio-util v0.6.7
[INFO] [stderr]   Downloaded syn v1.0.74
[INFO] [stderr]   Downloaded proc-macro-nested v0.1.7
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.19
[INFO] [stderr]   Downloaded futures v0.3.16
[INFO] [stderr]   Downloaded cc v1.0.69
[INFO] [stderr]   Downloaded slab v0.4.4
[INFO] [stderr]   Downloaded futures-channel v0.3.16
[INFO] [stderr]   Downloaded mac_address v1.1.2
[INFO] [stderr]   Downloaded tokio-stream v0.1.7
[INFO] [stderr]   Downloaded mio v0.7.13
[INFO] [stderr]   Downloaded libc v0.2.98
[INFO] [stderr]   Downloaded ntapi v0.3.6
[INFO] [stderr]   Downloaded futures-sink v0.3.16
[INFO] [stderr]   Downloaded tokio-macros v1.3.0
[INFO] [stderr]   Downloaded pin-project-lite v0.2.7
[INFO] [stderr]   Downloaded memoffset v0.6.4
[INFO] [stderr]   Downloaded http_header v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1c006196cb9ff4b3cfa15dd452ab6fda4ad64437b01eeea20e2aa799e1b41f0
[INFO] running `Command { std: "docker" "start" "-a" "c1c006196cb9ff4b3cfa15dd452ab6fda4ad64437b01eeea20e2aa799e1b41f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1c006196cb9ff4b3cfa15dd452ab6fda4ad64437b01eeea20e2aa799e1b41f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1c006196cb9ff4b3cfa15dd452ab6fda4ad64437b01eeea20e2aa799e1b41f0", kill_on_drop: false }`
[INFO] [stdout] c1c006196cb9ff4b3cfa15dd452ab6fda4ad64437b01eeea20e2aa799e1b41f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adcb2edac947199cf4cf8bfb026e8afe2f63076d655babe29534f7bb3f77ae86
[INFO] running `Command { std: "docker" "start" "-a" "adcb2edac947199cf4cf8bfb026e8afe2f63076d655babe29534f7bb3f77ae86", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking http_header v0.7.0
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling tokio v1.9.0
[INFO] [stderr]     Checking futures-channel v0.3.16
[INFO] [stderr]     Checking futures-util v0.3.16
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking nix v0.22.0
[INFO] [stderr]     Checking futures-executor v0.3.16
[INFO] [stdout] error[E0425]: cannot find function `yield_now` in module `crate::task`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-1.9.0/src/time/clock.rs:133:22
[INFO] [stdout]     |
[INFO] [stdout] 133 |         crate::task::yield_now().await;
[INFO] [stdout]     |                      ^^^^^^^^^ not found in `crate::task`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]     |
[INFO] [stdout] 31  |     use std::thread::yield_now;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures v0.3.16
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tokio`
[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" "adcb2edac947199cf4cf8bfb026e8afe2f63076d655babe29534f7bb3f77ae86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adcb2edac947199cf4cf8bfb026e8afe2f63076d655babe29534f7bb3f77ae86", kill_on_drop: false }`
[INFO] [stdout] adcb2edac947199cf4cf8bfb026e8afe2f63076d655babe29534f7bb3f77ae86
