[INFO] fetching crate chrome-remote-interface-model-tools 0.1.0-alpha.8...
[INFO] checking chrome-remote-interface-model-tools-0.1.0-alpha.8 against master#2d3a85b4f8ba7e2554f4d4fee126bc2ac6ee2af4 for pr-84385
[INFO] extracting crate chrome-remote-interface-model-tools 0.1.0-alpha.8 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate chrome-remote-interface-model-tools 0.1.0-alpha.8 on toolchain 2d3a85b4f8ba7e2554f4d4fee126bc2ac6ee2af4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2d3a85b4f8ba7e2554f4d4fee126bc2ac6ee2af4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate chrome-remote-interface-model-tools 0.1.0-alpha.8
[INFO] finished tweaking crates.io crate chrome-remote-interface-model-tools 0.1.0-alpha.8
[INFO] tweaked toml for crates.io crate chrome-remote-interface-model-tools 0.1.0-alpha.8 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate chrome-remote-interface-model-tools 0.1.0-alpha.8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2d3a85b4f8ba7e2554f4d4fee126bc2ac6ee2af4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+2d3a85b4f8ba7e2554f4d4fee126bc2ac6ee2af4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e037ed492892f8696a23e216411682b05b078c3c760838ee836268d08f7725e4
[INFO] running `Command { std: "docker" "start" "-a" "e037ed492892f8696a23e216411682b05b078c3c760838ee836268d08f7725e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e037ed492892f8696a23e216411682b05b078c3c760838ee836268d08f7725e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e037ed492892f8696a23e216411682b05b078c3c760838ee836268d08f7725e4", kill_on_drop: false }`
[INFO] [stdout] e037ed492892f8696a23e216411682b05b078c3c760838ee836268d08f7725e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+2d3a85b4f8ba7e2554f4d4fee126bc2ac6ee2af4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51b73ea9d630c2813a3b220810e08a1ec2ba305ab757c5102f5fd0459408b36b
[INFO] running `Command { std: "docker" "start" "-a" "51b73ea9d630c2813a3b220810e08a1ec2ba305ab757c5102f5fd0459408b36b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
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[INFO] [stderr]     Checking chrome-remote-interface-model-tools v0.1.0-alpha.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `redirect` is never read
[INFO] [stdout]    --> src/lib.rs:198:5
[INFO] [stdout]     |
[INFO] [stdout] 196 | struct Command {
[INFO] [stdout]     |        ------- field in this struct
[INFO] [stdout] 197 |     name: String,
[INFO] [stdout] 198 |     redirect: Option<String>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Command` has a derived impl for the trait `Debug`, but this is 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: field `redirect` is never read
[INFO] [stdout]    --> src/lib.rs:198:5
[INFO] [stdout]     |
[INFO] [stdout] 196 | struct Command {
[INFO] [stdout]     |        ------- field in this struct
[INFO] [stdout] 197 |     name: String,
[INFO] [stdout] 198 |     redirect: Option<String>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Command` has a derived impl for the trait `Debug`, but this is 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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.94s
[INFO] running `Command { std: "docker" "inspect" "51b73ea9d630c2813a3b220810e08a1ec2ba305ab757c5102f5fd0459408b36b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51b73ea9d630c2813a3b220810e08a1ec2ba305ab757c5102f5fd0459408b36b", kill_on_drop: false }`
[INFO] [stdout] 51b73ea9d630c2813a3b220810e08a1ec2ba305ab757c5102f5fd0459408b36b