[INFO] fetching crate mdbook-plugin-utils 0.2.3...
[INFO] checking mdbook-plugin-utils-0.2.3 against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1
[INFO] extracting crate mdbook-plugin-utils 0.2.3 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate mdbook-plugin-utils 0.2.3
[INFO] finished tweaking crates.io crate mdbook-plugin-utils 0.2.3
[INFO] tweaked toml for crates.io crate mdbook-plugin-utils 0.2.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mdbook-plugin-utils 0.2.3 on toolchain 779e19d8baa3e3625bd4fc5c85cbb2ad47b43155
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mdbook-plugin-utils 0.2.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "cabc0ec38b9e30cf166e62606e0c4f342ca682a5b4be0a4f0b7ca71b66ae5816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cabc0ec38b9e30cf166e62606e0c4f342ca682a5b4be0a4f0b7ca71b66ae5816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cabc0ec38b9e30cf166e62606e0c4f342ca682a5b4be0a4f0b7ca71b66ae5816", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "abdc14ae4b8bddf507cf97c7d54bf58758464dd7f65ab7c41d197b9f0a39801a", kill_on_drop: false }`
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[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/markdown/block.rs:32:14
[INFO] [stdout]    |
[INFO] [stdout] 32 |     content: &str,
[INFO] [stdout]    |              ^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 36 | ) -> Result<Vec<Block>>
[INFO] [stdout]    |                 ^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 36 | ) -> Result<Vec<Block<'_>>>
[INFO] [stdout]    |                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/markdown/code_block.rs:27:45
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn parse_code_blocks<IsTagsFn>(content: &str, is_tags: IsTagsFn) -> Result<Vec<Block>>
[INFO] [stdout]    |                                             ^^^^ the lifetime is elided here       ^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn parse_code_blocks<IsTagsFn>(content: &str, is_tags: IsTagsFn) -> Result<Vec<Block<'_>>>
[INFO] [stdout]    |                                                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/markdown/block.rs:32:14
[INFO] [stdout]    |
[INFO] [stdout] 32 |     content: &str,
[INFO] [stdout]    |              ^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 36 | ) -> Result<Vec<Block>>
[INFO] [stdout]    |                 ^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 36 | ) -> Result<Vec<Block<'_>>>
[INFO] [stdout]    |                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/markdown/code_block.rs:27:45
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn parse_code_blocks<IsTagsFn>(content: &str, is_tags: IsTagsFn) -> Result<Vec<Block>>
[INFO] [stdout]    |                                             ^^^^ the lifetime is elided here       ^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn parse_code_blocks<IsTagsFn>(content: &str, is_tags: IsTagsFn) -> Result<Vec<Block<'_>>>
[INFO] [stdout]    |                                                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 46.28s
[INFO] running `Command { std: "docker" "inspect" "abdc14ae4b8bddf507cf97c7d54bf58758464dd7f65ab7c41d197b9f0a39801a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abdc14ae4b8bddf507cf97c7d54bf58758464dd7f65ab7c41d197b9f0a39801a", kill_on_drop: false }`
[INFO] [stdout] abdc14ae4b8bddf507cf97c7d54bf58758464dd7f65ab7c41d197b9f0a39801a