[INFO] fetching crate val-test 0.2.3...
[INFO] building val-test-0.2.3 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate val-test 0.2.3 into /workspace/builds/worker-0-tc2/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-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate val-test 0.2.3 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81bab479be2dae5ca50456576dfcce2233a0056170405082e07a231e6b096123
[INFO] running `Command { std: "docker" "start" "-a" "81bab479be2dae5ca50456576dfcce2233a0056170405082e07a231e6b096123", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81bab479be2dae5ca50456576dfcce2233a0056170405082e07a231e6b096123", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81bab479be2dae5ca50456576dfcce2233a0056170405082e07a231e6b096123", kill_on_drop: false }`
[INFO] [stdout] 81bab479be2dae5ca50456576dfcce2233a0056170405082e07a231e6b096123
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 135bf4a87605a9ac9cb9d6cea690e1129545af421ed87bfac562f255c451010b
[INFO] running `Command { std: "docker" "start" "-a" "135bf4a87605a9ac9cb9d6cea690e1129545af421ed87bfac562f255c451010b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[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 7.17s
[INFO] running `Command { std: "docker" "inspect" "135bf4a87605a9ac9cb9d6cea690e1129545af421ed87bfac562f255c451010b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "135bf4a87605a9ac9cb9d6cea690e1129545af421ed87bfac562f255c451010b", kill_on_drop: false }`
[INFO] [stdout] 135bf4a87605a9ac9cb9d6cea690e1129545af421ed87bfac562f255c451010b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9233e9c027090fa0d32709daede6100e3f769140c0c87443d3ba4796449ef36
[INFO] running `Command { std: "docker" "start" "-a" "b9233e9c027090fa0d32709daede6100e3f769140c0c87443d3ba4796449ef36", kill_on_drop: false }`
[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]    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 `test` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "b9233e9c027090fa0d32709daede6100e3f769140c0c87443d3ba4796449ef36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9233e9c027090fa0d32709daede6100e3f769140c0c87443d3ba4796449ef36", kill_on_drop: false }`
[INFO] [stdout] b9233e9c027090fa0d32709daede6100e3f769140c0c87443d3ba4796449ef36