[INFO] fetching crate mdbook-compress 0.2.1...
[INFO] checking mdbook-compress-0.2.1 against 1.95.0 for pr-155915
[INFO] extracting crate mdbook-compress 0.2.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate mdbook-compress 0.2.1
[INFO] finished tweaking crates.io crate mdbook-compress 0.2.1
[INFO] tweaked toml for crates.io crate mdbook-compress 0.2.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mdbook-compress 0.2.1 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-compress 0.2.1 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
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c51006980b8ce6ef694322c59dd44ba7c153df15a2725314e0adbddf62797c6f
[INFO] running `Command { std: "docker" "start" "-a" "c51006980b8ce6ef694322c59dd44ba7c153df15a2725314e0adbddf62797c6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c51006980b8ce6ef694322c59dd44ba7c153df15a2725314e0adbddf62797c6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c51006980b8ce6ef694322c59dd44ba7c153df15a2725314e0adbddf62797c6f", kill_on_drop: false }`
[INFO] [stdout] c51006980b8ce6ef694322c59dd44ba7c153df15a2725314e0adbddf62797c6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 }`
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[INFO] running `Command { std: "docker" "start" "-a" "cb01d1aacfe6cfca14c38c269380368e9542f16ace1747ee5d114cddba64d3a3", kill_on_drop: false }`
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[INFO] [stderr]     Checking mdbook-compress v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]   --> src/highlight/util.rs:85:55
[INFO] [stdout]    |
[INFO] [stdout] 85 |                         if let Some(continuation) = children.remove(next.clone()) {
[INFO] [stdout]    |                                                                         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]   --> src/highlight/util.rs:85:55
[INFO] [stdout]    |
[INFO] [stdout] 85 |                         if let Some(continuation) = children.remove(next.clone()) {
[INFO] [stdout]    |                                                                         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 55.38s
[INFO] running `Command { std: "docker" "inspect" "cb01d1aacfe6cfca14c38c269380368e9542f16ace1747ee5d114cddba64d3a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb01d1aacfe6cfca14c38c269380368e9542f16ace1747ee5d114cddba64d3a3", kill_on_drop: false }`
[INFO] [stdout] cb01d1aacfe6cfca14c38c269380368e9542f16ace1747ee5d114cddba64d3a3
