[INFO] cloning repository https://github.com/danneu/hunk-prev
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/danneu/hunk-prev" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanneu%2Fhunk-prev", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanneu%2Fhunk-prev'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4f22e244d98a15b4decdbc7c8c73348f72023dc8
[INFO] documenting danneu/hunk-prev against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanneu%2Fhunk-prev" "/workspace/builds/worker-74/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-74/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/danneu/hunk-prev on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/danneu/hunk-prev
[INFO] finished tweaking git repo https://github.com/danneu/hunk-prev
[INFO] tweaked toml for git repo https://github.com/danneu/hunk-prev written to /workspace/builds/worker-74/source/Cargo.toml
[INFO] crate git repo https://github.com/danneu/hunk-prev already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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 termcolor v0.3.5
[INFO] [stderr]   Downloaded toml v0.4.5
[INFO] [stderr]   Downloaded maud_macros v0.17.2
[INFO] [stderr]   Downloaded maud v0.17.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c654cb36755520890764b44e07bc67c7d40030fad856b396b2bce7256604ccd
[INFO] running `Command { std: "docker" "start" "-a" "1c654cb36755520890764b44e07bc67c7d40030fad856b396b2bce7256604ccd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c654cb36755520890764b44e07bc67c7d40030fad856b396b2bce7256604ccd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c654cb36755520890764b44e07bc67c7d40030fad856b396b2bce7256604ccd", kill_on_drop: false }`
[INFO] [stdout] 1c654cb36755520890764b44e07bc67c7d40030fad856b396b2bce7256604ccd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9480c27bcb1f4c28a783fdcb2b19a8eb4aef7c0b99d0ff11b62b98c3612994a6
[INFO] running `Command { std: "docker" "start" "-a" "9480c27bcb1f4c28a783fdcb2b19a8eb4aef7c0b99d0ff11b62b98c3612994a6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.39
[INFO] [stderr]     Checking futures v0.1.18
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking slab v0.4.0
[INFO] [stderr]     Checking lazycell v0.6.0
[INFO] [stderr]    Compiling version_check v0.1.3
[INFO] [stderr]    Compiling cc v1.0.8
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]     Checking scoped-tls v0.1.1
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking matches v0.1.6
[INFO] [stderr]     Checking take v0.1.0
[INFO] [stderr]     Checking quick-error v1.2.1
[INFO] [stderr]     Checking unicode-normalization v0.1.5
[INFO] [stderr]     Checking smallvec v0.2.1
[INFO] [stderr]    Compiling maud_htmlescape v0.17.0
[INFO] [stderr]    Compiling literalext v0.1.1
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking serde v1.0.33
[INFO] [stderr]     Checking httparse v1.2.4
[INFO] [stderr]     Checking termcolor v0.3.5
[INFO] [stderr]     Checking leak v0.1.2
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/literalext-0.1.1/src/lib.rs:19:37
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![cfg_attr(feature = "proc-macro", feature(proc_macro))]
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `literalext` due to 2 previous errors
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "9480c27bcb1f4c28a783fdcb2b19a8eb4aef7c0b99d0ff11b62b98c3612994a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9480c27bcb1f4c28a783fdcb2b19a8eb4aef7c0b99d0ff11b62b98c3612994a6", kill_on_drop: false }`
[INFO] [stdout] 9480c27bcb1f4c28a783fdcb2b19a8eb4aef7c0b99d0ff11b62b98c3612994a6
