[INFO] fetching crate a7ef2cdb0469f2866b38474dbf671de688a07a646c2d936eaa5c66b80 0.0.1...
[INFO] checking a7ef2cdb0469f2866b38474dbf671de688a07a646c2d936eaa5c66b80-0.0.1 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate a7ef2cdb0469f2866b38474dbf671de688a07a646c2d936eaa5c66b80 0.0.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate a7ef2cdb0469f2866b38474dbf671de688a07a646c2d936eaa5c66b80 0.0.1 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate a7ef2cdb0469f2866b38474dbf671de688a07a646c2d936eaa5c66b80 0.0.1
[INFO] finished tweaking crates.io crate a7ef2cdb0469f2866b38474dbf671de688a07a646c2d936eaa5c66b80 0.0.1
[INFO] tweaked toml for crates.io crate a7ef2cdb0469f2866b38474dbf671de688a07a646c2d936eaa5c66b80 0.0.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6381dcf7909730f2eda79f2ef545a38636c0df1b4ace5bf4c924ceb2c15492f
[INFO] running `Command { std: "docker" "start" "-a" "b6381dcf7909730f2eda79f2ef545a38636c0df1b4ace5bf4c924ceb2c15492f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6381dcf7909730f2eda79f2ef545a38636c0df1b4ace5bf4c924ceb2c15492f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6381dcf7909730f2eda79f2ef545a38636c0df1b4ace5bf4c924ceb2c15492f", kill_on_drop: false }`
[INFO] [stdout] b6381dcf7909730f2eda79f2ef545a38636c0df1b4ace5bf4c924ceb2c15492f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21d8c28a7d37d7b7a5141c40c13b4605d91c3e863c34ca883555b4c2eb05f06a
[INFO] running `Command { std: "docker" "start" "-a" "21d8c28a7d37d7b7a5141c40c13b4605d91c3e863c34ca883555b4c2eb05f06a", kill_on_drop: false }`
[INFO] [stderr]     Checking a7ef2cdb0469f2866b38474dbf671de688a07a646c2d936eaa5c66b80 v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `indent`
[INFO] [stdout]  --> src/lib.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn dep_tree(indent: usize) {
[INFO] [stdout]   |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_indent`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `indent`
[INFO] [stdout]  --> src/lib.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn dep_tree(indent: usize) {
[INFO] [stdout]   |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_indent`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` 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 [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "21d8c28a7d37d7b7a5141c40c13b4605d91c3e863c34ca883555b4c2eb05f06a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21d8c28a7d37d7b7a5141c40c13b4605d91c3e863c34ca883555b4c2eb05f06a", kill_on_drop: false }`
[INFO] [stdout] 21d8c28a7d37d7b7a5141c40c13b4605d91c3e863c34ca883555b4c2eb05f06a