[INFO] fetching crate constructor-macro 0.4.2...
[INFO] checking constructor-macro-0.4.2 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate constructor-macro 0.4.2 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate constructor-macro 0.4.2 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate constructor-macro 0.4.2
[INFO] finished tweaking crates.io crate constructor-macro 0.4.2
[INFO] tweaked toml for crates.io crate constructor-macro 0.4.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] [stderr]       Adding proc-macro2 v0.4.30 (latest: v1.0.86)
[INFO] [stderr]       Adding quote v0.6.13 (latest: v1.0.37)
[INFO] [stderr]       Adding syn v0.15.44 (latest: v2.0.77)
[INFO] [stderr]       Adding unicode-xid v0.1.0 (latest: v0.2.5)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f8035e11f9f9670142e5aca76077f03961ddf6c1e0c56aeadff39f89a12b9c9
[INFO] running `Command { std: "docker" "start" "-a" "0f8035e11f9f9670142e5aca76077f03961ddf6c1e0c56aeadff39f89a12b9c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f8035e11f9f9670142e5aca76077f03961ddf6c1e0c56aeadff39f89a12b9c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f8035e11f9f9670142e5aca76077f03961ddf6c1e0c56aeadff39f89a12b9c9", kill_on_drop: false }`
[INFO] [stdout] 0f8035e11f9f9670142e5aca76077f03961ddf6c1e0c56aeadff39f89a12b9c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40e80022e523cb83d1173e461cd779f834c6533fd3f3d214acd676a594c8a367
[INFO] running `Command { std: "docker" "start" "-a" "40e80022e523cb83d1173e461cd779f834c6533fd3f3d214acd676a594c8a367", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking constructor-macro v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `paren` is never read
[INFO] [stdout]   --> src/construct.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct DefaultValue {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 10 |     pub paren: Paren,
[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: field `paren` is never read
[INFO] [stdout]   --> src/construct.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct DefaultValue {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 10 |     pub paren: Paren,
[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: field `paren` is never read
[INFO] [stdout]   --> src/construct.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct DefaultValue {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 10 |     pub paren: Paren,
[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: unnecessary trailing semicolon
[INFO] [stdout]   --> tests/default_value.rs:68:34
[INFO] [stdout]    |
[INFO] [stdout] 68 |     struct Value { value: usize };
[INFO] [stdout]    |                                  ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Right` is never constructed
[INFO] [stdout]   --> tests/default_value.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 84 |     enum Either {
[INFO] [stdout]    |          ------ variant in this enum
[INFO] [stdout] 85 |         Left,
[INFO] [stdout] 86 |         Right,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Either` 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: variant `Right` is never constructed
[INFO] [stdout]    --> tests/default_value.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 102 |     enum Either {
[INFO] [stdout]     |          ------ variant in this enum
[INFO] [stdout] 103 |         Left(usize),
[INFO] [stdout] 104 |         Right(usize),
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Either` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Right` is never constructed
[INFO] [stdout]    --> tests/default_value.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |     enum Either {
[INFO] [stdout]     |          ------ variant in this enum
[INFO] [stdout] 121 |         Left { value: usize },
[INFO] [stdout] 122 |         Right { value: usize },
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Either` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.94s
[INFO] running `Command { std: "docker" "inspect" "40e80022e523cb83d1173e461cd779f834c6533fd3f3d214acd676a594c8a367", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40e80022e523cb83d1173e461cd779f834c6533fd3f3d214acd676a594c8a367", kill_on_drop: false }`
[INFO] [stdout] 40e80022e523cb83d1173e461cd779f834c6533fd3f3d214acd676a594c8a367