[INFO] fetching crate kernlog 0.3.1...
[INFO] checking kernlog-0.3.1 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate kernlog 0.3.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate kernlog 0.3.1 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kernlog 0.3.1
[INFO] finished tweaking crates.io crate kernlog 0.3.1
[INFO] tweaked toml for crates.io crate kernlog 0.3.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae16aa8fb3914ed2a8de00fa7acf141b41b933e863c574ac29233a5d9cbc8898
[INFO] running `Command { std: "docker" "start" "-a" "ae16aa8fb3914ed2a8de00fa7acf141b41b933e863c574ac29233a5d9cbc8898", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae16aa8fb3914ed2a8de00fa7acf141b41b933e863c574ac29233a5d9cbc8898", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae16aa8fb3914ed2a8de00fa7acf141b41b933e863c574ac29233a5d9cbc8898", kill_on_drop: false }`
[INFO] [stdout] ae16aa8fb3914ed2a8de00fa7acf141b41b933e863c574ac29233a5d9cbc8898
[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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 62fd1d28173d33888b0ef7f44042bc6e12f3a8c5ce4fa0e07e3ef1b895b0314e
[INFO] running `Command { std: "docker" "start" "-a" "62fd1d28173d33888b0ef7f44042bc6e12f3a8c5ce4fa0e07e3ef1b895b0314e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]     Checking kernlog v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `KernelLog`
[INFO] [stdout]    --> src/lib.rs:168:17
[INFO] [stdout]     |
[INFO] [stdout] 168 |     use super::{KernelLog, init};
[INFO] [stdout]     |                 ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:44:1
[INFO] [stdout]    |
[INFO] [stdout] 44 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.84s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "62fd1d28173d33888b0ef7f44042bc6e12f3a8c5ce4fa0e07e3ef1b895b0314e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62fd1d28173d33888b0ef7f44042bc6e12f3a8c5ce4fa0e07e3ef1b895b0314e", kill_on_drop: false }`
[INFO] [stdout] 62fd1d28173d33888b0ef7f44042bc6e12f3a8c5ce4fa0e07e3ef1b895b0314e