[INFO] cloning repository https://github.com/remopas/reel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/remopas/reel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fremopas%2Freel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fremopas%2Freel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce0da3f0840342b7f4b8ad71c0437a320716e5e9
[INFO] documenting remopas/reel against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fremopas%2Freel" "/workspace/builds/worker-28/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/remopas/reel on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/remopas/reel
[INFO] finished tweaking git repo https://github.com/remopas/reel
[INFO] tweaked toml for git repo https://github.com/remopas/reel written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate git repo https://github.com/remopas/reel already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--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-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bca64675883e6a683dbaf9774a3d585296d4531982118fe8cd37ada5fdd15a53
[INFO] running `Command { std: "docker" "start" "-a" "bca64675883e6a683dbaf9774a3d585296d4531982118fe8cd37ada5fdd15a53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bca64675883e6a683dbaf9774a3d585296d4531982118fe8cd37ada5fdd15a53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bca64675883e6a683dbaf9774a3d585296d4531982118fe8cd37ada5fdd15a53", kill_on_drop: false }`
[INFO] [stdout] bca64675883e6a683dbaf9774a3d585296d4531982118fe8cd37ada5fdd15a53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3cb91ef46cb835fd6ea709d1b5da1af5a3754e34231c7465149e538a668220a8
[INFO] running `Command { std: "docker" "start" "-a" "3cb91ef46cb835fd6ea709d1b5da1af5a3754e34231c7465149e538a668220a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking codegen v0.1.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking yaw v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting yaw v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/analysis/analyser.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/analysis/analyser.rs:63:33
[INFO] [stdout]    |
[INFO] [stdout] 63 |                     if let Some(i) = kernels.iter().position(|k| k == &kernels[i]) {
[INFO] [stdout]    |                                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `analyzer`
[INFO] [stdout]   --> src/analysis/analyser.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let analyzer = Self::new(grammar);
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_analyzer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reduce_item`
[INFO] [stdout]    --> src/analysis/analyser.rs:164:8
[INFO] [stdout]     |
[INFO] [stdout] 164 |     fn reduce_item(&self, item: &Item<T, NT>) -> (T, Action<T, NT>) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.51s
[INFO] running `Command { std: "docker" "inspect" "3cb91ef46cb835fd6ea709d1b5da1af5a3754e34231c7465149e538a668220a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cb91ef46cb835fd6ea709d1b5da1af5a3754e34231c7465149e538a668220a8", kill_on_drop: false }`
[INFO] [stdout] 3cb91ef46cb835fd6ea709d1b5da1af5a3754e34231c7465149e538a668220a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "RUSTFLAGS=--cap-lints=warn" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 17486c94e7459e325177ef0a1c67eb44b977766bf6ccb1643ab58d43e1059cde
[INFO] running `Command { std: "docker" "start" "-a" "17486c94e7459e325177ef0a1c67eb44b977766bf6ccb1643ab58d43e1059cde", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking codegen v0.1.3
[INFO] [stderr]  Documenting yaw v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.89s
[INFO] running `Command { std: "docker" "inspect" "17486c94e7459e325177ef0a1c67eb44b977766bf6ccb1643ab58d43e1059cde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17486c94e7459e325177ef0a1c67eb44b977766bf6ccb1643ab58d43e1059cde", kill_on_drop: false }`
[INFO] [stdout] 17486c94e7459e325177ef0a1c67eb44b977766bf6ccb1643ab58d43e1059cde