[INFO] fetching crate val-test 0.2.3...
[INFO] building val-test-0.2.3 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate val-test 0.2.3 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate val-test 0.2.3
[INFO] finished tweaking crates.io crate val-test 0.2.3
[INFO] tweaked toml for crates.io crate val-test 0.2.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate val-test 0.2.3 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate val-test 0.2.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd956659825213fcd8e9b5f0bb7e9c57b044a0629ba12f9180ebc1bfab588274
[INFO] running `Command { std: "docker" "start" "-a" "bd956659825213fcd8e9b5f0bb7e9c57b044a0629ba12f9180ebc1bfab588274", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd956659825213fcd8e9b5f0bb7e9c57b044a0629ba12f9180ebc1bfab588274", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd956659825213fcd8e9b5f0bb7e9c57b044a0629ba12f9180ebc1bfab588274", kill_on_drop: false }`
[INFO] [stdout] bd956659825213fcd8e9b5f0bb7e9c57b044a0629ba12f9180ebc1bfab588274
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77958a85bcea5dec61c3b9a756bf4140290ba59a9b56bdc44612eb35a93c072f
[INFO] running `Command { std: "docker" "start" "-a" "77958a85bcea5dec61c3b9a756bf4140290ba59a9b56bdc44612eb35a93c072f", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling val-test v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `message`, `field`, and `valid` are never read
[INFO] [stdout]   --> src/lib.rs:74:20
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub struct ValidationResult {
[INFO] [stdout]    |                ---------------- fields in this struct
[INFO] [stdout] 74 |         pub(crate) message: Option<String>,
[INFO] [stdout]    |                    ^^^^^^^
[INFO] [stdout] 75 |         pub(crate) field: Option<String>,
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout] 76 |         pub(crate) valid: bool,
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ValidationResult` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.96s
[INFO] running `Command { std: "docker" "inspect" "77958a85bcea5dec61c3b9a756bf4140290ba59a9b56bdc44612eb35a93c072f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77958a85bcea5dec61c3b9a756bf4140290ba59a9b56bdc44612eb35a93c072f", kill_on_drop: false }`
[INFO] [stdout] 77958a85bcea5dec61c3b9a756bf4140290ba59a9b56bdc44612eb35a93c072f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 730dca1542172349264b02c9c2951e04d72ea7f45bb7dfc018a610c95f1ea5a8
[INFO] running `Command { std: "docker" "start" "-a" "730dca1542172349264b02c9c2951e04d72ea7f45bb7dfc018a610c95f1ea5a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling val-test v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `message`, `field`, and `valid` are never read
[INFO] [stdout]   --> src/lib.rs:74:20
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub struct ValidationResult {
[INFO] [stdout]    |                ---------------- fields in this struct
[INFO] [stdout] 74 |         pub(crate) message: Option<String>,
[INFO] [stdout]    |                    ^^^^^^^
[INFO] [stdout] 75 |         pub(crate) field: Option<String>,
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout] 76 |         pub(crate) valid: bool,
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ValidationResult` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `message`, `field`, and `valid` are never read
[INFO] [stdout]   --> src/lib.rs:74:20
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub struct ValidationResult {
[INFO] [stdout]    |                ---------------- fields in this struct
[INFO] [stdout] 74 |         pub(crate) message: Option<String>,
[INFO] [stdout]    |                    ^^^^^^^
[INFO] [stdout] 75 |         pub(crate) field: Option<String>,
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout] 76 |         pub(crate) valid: bool,
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ValidationResult` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "730dca1542172349264b02c9c2951e04d72ea7f45bb7dfc018a610c95f1ea5a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "730dca1542172349264b02c9c2951e04d72ea7f45bb7dfc018a610c95f1ea5a8", kill_on_drop: false }`
[INFO] [stdout] 730dca1542172349264b02c9c2951e04d72ea7f45bb7dfc018a610c95f1ea5a8