[INFO] fetching crate webforms_derive 0.2.1...
[INFO] checking webforms_derive-0.2.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate webforms_derive 0.2.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate webforms_derive 0.2.1
[INFO] finished tweaking crates.io crate webforms_derive 0.2.1
[INFO] tweaked toml for crates.io crate webforms_derive 0.2.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate webforms_derive 0.2.1 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 24 packages to latest compatible versions
[INFO] [stderr]       Adding proc-macro2 v0.4.30 (available: v1.0.95)
[INFO] [stderr]       Adding quote v0.6.13 (available: v1.0.40)
[INFO] [stderr]       Adding rand v0.6.5 (available: v0.9.1)
[INFO] [stderr]       Adding syn v0.15.44 (available: v2.0.104)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d375948384515a69e3e52d733c4825bb1b7dddc2d2e19dec80190b1795bb2e1
[INFO] running `Command { std: "docker" "start" "-a" "3d375948384515a69e3e52d733c4825bb1b7dddc2d2e19dec80190b1795bb2e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d375948384515a69e3e52d733c4825bb1b7dddc2d2e19dec80190b1795bb2e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d375948384515a69e3e52d733c4825bb1b7dddc2d2e19dec80190b1795bb2e1", kill_on_drop: false }`
[INFO] [stdout] 3d375948384515a69e3e52d733c4825bb1b7dddc2d2e19dec80190b1795bb2e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9fd4cc68e64aae95582df720fb982faea4ed671f9bddd4d9500c0ab8d1153d9f
[INFO] running `Command { std: "docker" "start" "-a" "9fd4cc68e64aae95582df720fb982faea4ed671f9bddd4d9500c0ab8d1153d9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking libc v0.2.174
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking webforms_derive v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `ident` is never read
[INFO] [stdout]   --> src/validate.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub(crate) struct ValidateStruct<'a> {
[INFO] [stdout]    |                   -------------- field in this struct
[INFO] [stdout] 46 |     pub ident: &'a syn::Ident,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ident` is never read
[INFO] [stdout]   --> src/validate.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub(crate) struct ValidateStruct<'a> {
[INFO] [stdout]    |                   -------------- field in this struct
[INFO] [stdout] 46 |     pub ident: &'a syn::Ident,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.80s
[INFO] running `Command { std: "docker" "inspect" "9fd4cc68e64aae95582df720fb982faea4ed671f9bddd4d9500c0ab8d1153d9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fd4cc68e64aae95582df720fb982faea4ed671f9bddd4d9500c0ab8d1153d9f", kill_on_drop: false }`
[INFO] [stdout] 9fd4cc68e64aae95582df720fb982faea4ed671f9bddd4d9500c0ab8d1153d9f