[INFO] cloning repository https://github.com/andrewlowndes/dynamic-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andrewlowndes/dynamic-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrewlowndes%2Fdynamic-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrewlowndes%2Fdynamic-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1e9b0b404b62527c4fe0b0015fe81a26cdb5a030
[INFO] documenting andrewlowndes/dynamic-rust 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%2Fandrewlowndes%2Fdynamic-rust" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andrewlowndes/dynamic-rust 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/andrewlowndes/dynamic-rust
[INFO] finished tweaking git repo https://github.com/andrewlowndes/dynamic-rust
[INFO] tweaked toml for git repo https://github.com/andrewlowndes/dynamic-rust written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/andrewlowndes/dynamic-rust 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded polling v0.1.5
[INFO] [stderr]   Downloaded async-mutex v1.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] b475daadfb7a2f0843ad1d7905bafa2cc465feef6d1053bcc13958c20e3e9136
[INFO] running `Command { std: "docker" "start" "-a" "b475daadfb7a2f0843ad1d7905bafa2cc465feef6d1053bcc13958c20e3e9136", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b475daadfb7a2f0843ad1d7905bafa2cc465feef6d1053bcc13958c20e3e9136", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b475daadfb7a2f0843ad1d7905bafa2cc465feef6d1053bcc13958c20e3e9136", kill_on_drop: false }`
[INFO] [stdout] b475daadfb7a2f0843ad1d7905bafa2cc465feef6d1053bcc13958c20e3e9136
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 3b649bbd473e86ec9ce9b9a7e1166604ee918043135317b6f4a740c5ee3ca333
[INFO] running `Command { std: "docker" "start" "-a" "3b649bbd473e86ec9ce9b9a7e1166604ee918043135317b6f4a740c5ee3ca333", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]     Checking fastrand v1.3.4
[INFO] [stderr]     Checking waker-fn v1.0.0
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking event-listener v2.4.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking vec-arena v0.5.2
[INFO] [stderr]     Checking async-task v3.0.0
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking parking v1.0.6
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking async-mutex v1.1.5
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking async-channel v1.4.0
[INFO] [stderr]     Checking multitask v0.2.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking futures-lite v0.1.11
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking polling v0.1.5
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking async-io v0.1.11
[INFO] [stderr]     Checking blocking v0.5.2
[INFO] [stderr]     Checking async-executor v0.1.2
[INFO] [stderr]     Checking async-std v1.6.3
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling async-trait v0.1.40
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]  Documenting flow 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:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(fn_traits)]
[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 document `flow`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name flow src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=b400e1bc1d1085fc -L dependency=/opt/rustwide/target/debug/deps --extern async_std=/opt/rustwide/target/debug/deps/libasync_std-4eb00fa988591697.rmeta --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-a5c23079998db508.so --extern futures=/opt/rustwide/target/debug/deps/libfutures-404f184a1833efa1.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "3b649bbd473e86ec9ce9b9a7e1166604ee918043135317b6f4a740c5ee3ca333", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b649bbd473e86ec9ce9b9a7e1166604ee918043135317b6f4a740c5ee3ca333", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: Could not kill running container 3b649bbd473e86ec9ce9b9a7e1166604ee918043135317b6f4a740c5ee3ca333, cannot remove - tried to kill container, but did not receive an exit event
[ERROR] failed to delete container 3b649bbd473e86ec9ce9b9a7e1166604ee918043135317b6f4a740c5ee3ca333
[ERROR] caused by: command failed: exit status: 1