[INFO] updating cached repository https://github.com/1011X/emily-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4f442c17247e6039ddbe88b26072f60bf3cf0276
[INFO] documenting 1011X/emily-rust against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1011X%2Femily-rust" "/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/1011X/emily-rust on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/1011X/emily-rust
[INFO] finished tweaking git repo https://github.com/1011X/emily-rust
[INFO] tweaked toml for git repo https://github.com/1011X/emily-rust written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/1011X/emily-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ef21e5c4cf6a3efc210e5309357f651d2ee23eda7193285d89aaab12220e595
[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" "2ef21e5c4cf6a3efc210e5309357f651d2ee23eda7193285d89aaab12220e595", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ef21e5c4cf6a3efc210e5309357f651d2ee23eda7193285d89aaab12220e595", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ef21e5c4cf6a3efc210e5309357f651d2ee23eda7193285d89aaab12220e595", kill_on_drop: false }`
[INFO] [stdout] 2ef21e5c4cf6a3efc210e5309357f651d2ee23eda7193285d89aaab12220e595
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "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] 766f5765793278ec4ba97e442541bec29d311a14e4d575d3bc0cd1c6d014e7e8
[INFO] running `Command { std: "docker" "start" "-a" "766f5765793278ec4ba97e442541bec29d311a14e4d575d3bc0cd1c6d014e7e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking getopts v0.2.18
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]  Documenting emily-rust v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `,`, `@`, `]`, or `|`, found `..`
[INFO] [stdout]    --> src/pretty.rs:288:18
[INFO] [stdout]     |
[INFO] [stdout] 288 |         [ref toks..] => format!("[{}; ...]", toks.join("; ")),
[INFO] [stdout]     |                  ^^ expected one of `,`, `@`, `]`, or `|`
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to bind the contents of the rest of the array pattern into `toks`, use `@`
[INFO] [stdout]     |
[INFO] [stdout] 288 |         [ref toks @ ..] => format!("[{}; ...]", toks.join("; ")),
[INFO] [stdout]     |                   ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `emily-rust`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name emily_rust src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern getopts=/opt/rustwide/target/debug/deps/libgetopts-493e3dbbc574331f.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-4100d86b41520b5b.rmeta --extern nom=/opt/rustwide/target/debug/deps/libnom-f8988635da7a041b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-ce781ca075270fe5.rmeta --cap-lints=forbid` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "766f5765793278ec4ba97e442541bec29d311a14e4d575d3bc0cd1c6d014e7e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "766f5765793278ec4ba97e442541bec29d311a14e4d575d3bc0cd1c6d014e7e8", kill_on_drop: false }`
[INFO] [stdout] 766f5765793278ec4ba97e442541bec29d311a14e4d575d3bc0cd1c6d014e7e8