[INFO] fetching crate unidok-parser 0.2.0...
[INFO] checking unidok-parser-0.2.0 against master#a3f76a26e045a760bb1163b7eab36872985242d5 for pr-130930
[INFO] extracting crate unidok-parser 0.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate unidok-parser 0.2.0 on toolchain a3f76a26e045a760bb1163b7eab36872985242d5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unidok-parser 0.2.0
[INFO] finished tweaking crates.io crate unidok-parser 0.2.0
[INFO] tweaked toml for crates.io crate unidok-parser 0.2.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 19 packages to latest compatible versions
[INFO] [stderr]       Adding aho-corasick v0.7.20 (available: v1.1.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "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 detached-str v0.1.0
[INFO] [stderr]   Downloaded unidok-repr v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2bd3b1e61cd1076ec723f6a8beb0b5b676f5d9ae28e812efcfa653bb4ef8d7ed
[INFO] running `Command { std: "docker" "start" "-a" "2bd3b1e61cd1076ec723f6a8beb0b5b676f5d9ae28e812efcfa653bb4ef8d7ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bd3b1e61cd1076ec723f6a8beb0b5b676f5d9ae28e812efcfa653bb4ef8d7ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bd3b1e61cd1076ec723f6a8beb0b5b676f5d9ae28e812efcfa653bb4ef8d7ed", kill_on_drop: false }`
[INFO] [stdout] 2bd3b1e61cd1076ec723f6a8beb0b5b676f5d9ae28e812efcfa653bb4ef8d7ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=forbid" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a514ba6609a76eaef5072dd689e6c2e2aa4369463cfb418ca3846430d6498de
[INFO] running `Command { std: "docker" "start" "-a" "0a514ba6609a76eaef5072dd689e6c2e2aa4369463cfb418ca3846430d6498de", kill_on_drop: false }`
[INFO] [stderr]     Checking slug v0.1.6
[INFO] [stderr]     Checking detached-str v0.1.0
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking unidok-repr v0.2.0
[INFO] [stderr]     Checking unidok-parser v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `ind` is never read
[INFO] [stdout]  --> src/blocks/thematic_breaks.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub(crate) struct ParseThematicBreak<'a> {
[INFO] [stdout]   |                   ------------------ field in this struct
[INFO] [stdout] 8 |     pub ind: Indents<'a>,
[INFO] [stdout]   |         ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ParseThematicBreak` has derived impls for the traits `Default`, `Clone`, and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ind` is never read
[INFO] [stdout]  --> src/blocks/thematic_breaks.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub(crate) struct ParseThematicBreak<'a> {
[INFO] [stdout]   |                   ------------------ field in this struct
[INFO] [stdout] 8 |     pub ind: Indents<'a>,
[INFO] [stdout]   |         ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ParseThematicBreak` has derived impls for the traits `Default`, `Clone`, and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.28s
[INFO] running `Command { std: "docker" "inspect" "0a514ba6609a76eaef5072dd689e6c2e2aa4369463cfb418ca3846430d6498de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a514ba6609a76eaef5072dd689e6c2e2aa4369463cfb418ca3846430d6498de", kill_on_drop: false }`
[INFO] [stdout] 0a514ba6609a76eaef5072dd689e6c2e2aa4369463cfb418ca3846430d6498de