[INFO] cloning repository https://github.com/nmoutschen/rust-async
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nmoutschen/rust-async" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnmoutschen%2Frust-async", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnmoutschen%2Frust-async'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5965182b0405d139332b3dd56674add9bfecb08f
[INFO] checking nmoutschen/rust-async against master#2d3a85b4f8ba7e2554f4d4fee126bc2ac6ee2af4 for pr-84385
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnmoutschen%2Frust-async" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nmoutschen/rust-async 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 git repo https://github.com/nmoutschen/rust-async
[INFO] finished tweaking git repo https://github.com/nmoutschen/rust-async
[INFO] tweaked toml for git repo https://github.com/nmoutschen/rust-async written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/nmoutschen/rust-async 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] [stderr]     Updating git repository `https://github.com/awslabs/aws-lambda-rust-runtime`
[INFO] [stderr]  Downloading crates ...
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[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] 515f649d46ad1d43307776233b6ce52458fcb4065bc7afd39c8fc78128123b2f
[INFO] running `Command { std: "docker" "start" "-a" "515f649d46ad1d43307776233b6ce52458fcb4065bc7afd39c8fc78128123b2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "515f649d46ad1d43307776233b6ce52458fcb4065bc7afd39c8fc78128123b2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "515f649d46ad1d43307776233b6ce52458fcb4065bc7afd39c8fc78128123b2f", kill_on_drop: false }`
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[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 }`
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[INFO] running `Command { std: "docker" "start" "-a" "ccb5269b27a6ab69f61822bd8075f3aad075bf10b43647becd95583c91fe246a", kill_on_drop: false }`
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[INFO] [stderr]     Checking error-serde v0.1.0 (/opt/rustwide/workdir/error-serde)
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[INFO] [stdout] warning: field `age` is never read
[INFO] [stdout]  --> error-serde/src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct MyData {
[INFO] [stdout]   |        ------ field in this struct
[INFO] [stdout] 8 |     name: String,
[INFO] [stdout] 9 |     age: usize,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `age` is never read
[INFO] [stdout]  --> error-serde/src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct MyData {
[INFO] [stdout]   |        ------ field in this struct
[INFO] [stdout] 8 |     name: String,
[INFO] [stdout] 9 |     age: usize,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[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: 1 warning emitted
[INFO] [stdout] 
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[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.73s
[INFO] running `Command { std: "docker" "inspect" "ccb5269b27a6ab69f61822bd8075f3aad075bf10b43647becd95583c91fe246a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccb5269b27a6ab69f61822bd8075f3aad075bf10b43647becd95583c91fe246a", kill_on_drop: false }`
[INFO] [stdout] ccb5269b27a6ab69f61822bd8075f3aad075bf10b43647becd95583c91fe246a