[INFO] cloning repository https://github.com/parduhn/rs-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/parduhn/rs-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparduhn%2Frs-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparduhn%2Frs-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cb5f8452c8a20e1ab332645f9c7a3edcc853dcf0
[INFO] checking parduhn/rs-playground against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparduhn%2Frs-playground" "/workspace/builds/worker-80/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-80/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/parduhn/rs-playground on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/parduhn/rs-playground
[INFO] finished tweaking git repo https://github.com/parduhn/rs-playground
[INFO] tweaked toml for git repo https://github.com/parduhn/rs-playground written to /workspace/builds/worker-80/source/Cargo.toml
[INFO] crate git repo https://github.com/parduhn/rs-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93f18d4a4ff75724774bf179c2773f5a85073a00cf5e740ccefc7d6fb7fe017c
[INFO] running `Command { std: "docker" "start" "-a" "93f18d4a4ff75724774bf179c2773f5a85073a00cf5e740ccefc7d6fb7fe017c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93f18d4a4ff75724774bf179c2773f5a85073a00cf5e740ccefc7d6fb7fe017c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93f18d4a4ff75724774bf179c2773f5a85073a00cf5e740ccefc7d6fb7fe017c", kill_on_drop: false }`
[INFO] [stdout] 93f18d4a4ff75724774bf179c2773f5a85073a00cf5e740ccefc7d6fb7fe017c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7d4304cdb4f180a4fe4c073f84bd2adc5a47193f91792fd506fe95cc54a3b3d
[INFO] running `Command { std: "docker" "start" "-a" "a7d4304cdb4f180a4fe4c073f84bd2adc5a47193f91792fd506fe95cc54a3b3d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking hellow-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `standard_article`
[INFO] [stdout]   --> src/traits.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let standard_article = StandardArticle {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_standard_article`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `standard_article`
[INFO] [stdout]   --> src/traits.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let standard_article = StandardArticle {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_standard_article`
[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 12.09s
[INFO] running `Command { std: "docker" "inspect" "a7d4304cdb4f180a4fe4c073f84bd2adc5a47193f91792fd506fe95cc54a3b3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7d4304cdb4f180a4fe4c073f84bd2adc5a47193f91792fd506fe95cc54a3b3d", kill_on_drop: false }`
[INFO] [stdout] a7d4304cdb4f180a4fe4c073f84bd2adc5a47193f91792fd506fe95cc54a3b3d