[INFO] fetching crate mdbook-linkcheck 0.7.7...
[INFO] checking mdbook-linkcheck-0.7.7 against 1.95.0 for pr-155915
[INFO] extracting crate mdbook-linkcheck 0.7.7 into /workspace/builds/worker-3-tc1/source
[INFO] removed /workspace/builds/worker-3-tc1/source/.cargo/config
[INFO] started tweaking crates.io crate mdbook-linkcheck 0.7.7
[INFO] finished tweaking crates.io crate mdbook-linkcheck 0.7.7
[INFO] tweaked toml for crates.io crate mdbook-linkcheck 0.7.7 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mdbook-linkcheck 0.7.7 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mdbook-linkcheck 0.7.7 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc1ab0db876b3d0d0699001f40d90e5e66e1683ef656e5daa2ef23374d777897
[INFO] running `Command { std: "docker" "start" "-a" "cc1ab0db876b3d0d0699001f40d90e5e66e1683ef656e5daa2ef23374d777897", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc1ab0db876b3d0d0699001f40d90e5e66e1683ef656e5daa2ef23374d777897", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc1ab0db876b3d0d0699001f40d90e5e66e1683ef656e5daa2ef23374d777897", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e9f4a648717f4d8ca2826feba6cf2ad80a6c38036c5b6ed0e455f7561a52092
[INFO] running `Command { std: "docker" "start" "-a" "1e9f4a648717f4d8ca2826feba6cf2ad80a6c38036c5b6ed0e455f7561a52092", kill_on_drop: false }`
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[INFO] [stdout] warning: fields `src_dir` and `files` are never read
[INFO] [stdout]   --> src/context.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Context<'a> {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 17 |     pub(crate) cfg: &'a Config,
[INFO] [stdout] 18 |     pub(crate) src_dir: &'a Path,
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] 19 |     pub(crate) cache: Mutex<Cache>,
[INFO] [stdout] 20 |     pub(crate) files: &'a Files<String>,
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Context` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/context.rs:32:14
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn cache(&self) -> Option<MutexGuard<Cache>> {
[INFO] [stdout]    |              ^^^^^            ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |              |
[INFO] [stdout]    |              the lifetime is elided 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] 32 |     fn cache(&self) -> Option<MutexGuard<'_, Cache>> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `src_dir` and `files` are never read
[INFO] [stdout]   --> src/context.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Context<'a> {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 17 |     pub(crate) cfg: &'a Config,
[INFO] [stdout] 18 |     pub(crate) src_dir: &'a Path,
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] 19 |     pub(crate) cache: Mutex<Cache>,
[INFO] [stdout] 20 |     pub(crate) files: &'a Files<String>,
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Context` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/context.rs:32:14
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn cache(&self) -> Option<MutexGuard<Cache>> {
[INFO] [stdout]    |              ^^^^^            ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |              |
[INFO] [stdout]    |              the lifetime is elided 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] 32 |     fn cache(&self) -> Option<MutexGuard<'_, Cache>> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 36s
[INFO] running `Command { std: "docker" "inspect" "1e9f4a648717f4d8ca2826feba6cf2ad80a6c38036c5b6ed0e455f7561a52092", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e9f4a648717f4d8ca2826feba6cf2ad80a6c38036c5b6ed0e455f7561a52092", kill_on_drop: false }`
[INFO] [stdout] 1e9f4a648717f4d8ca2826feba6cf2ad80a6c38036c5b6ed0e455f7561a52092
