[INFO] fetching crate val-test 0.2.3...
[INFO] checking val-test-0.2.3 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate val-test 0.2.3 into /workspace/builds/worker-4-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-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate val-test 0.2.3 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 687bc12fe06f95e31b82780b461354b0cd7591765dca6978c379c38c080f72a6
[INFO] running `Command { std: "docker" "start" "-a" "687bc12fe06f95e31b82780b461354b0cd7591765dca6978c379c38c080f72a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "687bc12fe06f95e31b82780b461354b0cd7591765dca6978c379c38c080f72a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "687bc12fe06f95e31b82780b461354b0cd7591765dca6978c379c38c080f72a6", kill_on_drop: false }`
[INFO] [stdout] 687bc12fe06f95e31b82780b461354b0cd7591765dca6978c379c38c080f72a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8554107254d1d51ddce0f554a3ceb22d15470262527bc8dede8fb0d2a904835b
[INFO] running `Command { std: "docker" "start" "-a" "8554107254d1d51ddce0f554a3ceb22d15470262527bc8dede8fb0d2a904835b", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking 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)]` 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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.68s
[INFO] running `Command { std: "docker" "inspect" "8554107254d1d51ddce0f554a3ceb22d15470262527bc8dede8fb0d2a904835b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8554107254d1d51ddce0f554a3ceb22d15470262527bc8dede8fb0d2a904835b", kill_on_drop: false }`
[INFO] [stdout] 8554107254d1d51ddce0f554a3ceb22d15470262527bc8dede8fb0d2a904835b