[INFO] fetching crate binread_derive 2.1.0...
[INFO] checking binread_derive-2.1.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate binread_derive 2.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate binread_derive 2.1.0 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] started tweaking crates.io crate binread_derive 2.1.0
[INFO] finished tweaking crates.io crate binread_derive 2.1.0
[INFO] tweaked toml for crates.io crate binread_derive 2.1.0 written to /workspace/builds/worker-1-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 7 packages to latest compatible versions
[INFO] [stderr]       Adding runtime-macros-derive v0.4.0 (latest: v0.6.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded runtime-macros-derive v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 321ff307a24ee42357ace62629326863e669632d5136d51f502bb00c02afd4b8
[INFO] running `Command { std: "docker" "start" "-a" "321ff307a24ee42357ace62629326863e669632d5136d51f502bb00c02afd4b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "321ff307a24ee42357ace62629326863e669632d5136d51f502bb00c02afd4b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "321ff307a24ee42357ace62629326863e669632d5136d51f502bb00c02afd4b8", kill_on_drop: false }`
[INFO] [stdout] 321ff307a24ee42357ace62629326863e669632d5136d51f502bb00c02afd4b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 398db12894bf781c5c6bd08e40a2deb17e67d5360832da4a553eaac296ce1cfd
[INFO] running `Command { std: "docker" "start" "-a" "398db12894bf781c5c6bd08e40a2deb17e67d5360832da4a553eaac296ce1cfd", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking runtime-macros-derive v0.4.0
[INFO] [stderr]     Checking binread_derive v2.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `parens` is never read
[INFO] [stdout]   --> src/parser/meta_types.rs:79:16
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub(crate) struct MetaList<Keyword, ItemType> {
[INFO] [stdout]    |                   -------- field in this struct
[INFO] [stdout] 78 |     pub(crate) ident: Keyword,
[INFO] [stdout] 79 |     pub(crate) parens: token::Paren,
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MetaList` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `colon_token` is never read
[INFO] [stdout]    --> src/parser/meta_types.rs:113:16
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub(crate) struct IdentPatType {
[INFO] [stdout]     |                   ------------ field in this struct
[INFO] [stdout] 112 |     pub(crate) ident: syn::Ident,
[INFO] [stdout] 113 |     pub(crate) colon_token: Token![:],
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IdentPatType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `parens` is never read
[INFO] [stdout]   --> src/parser/meta_types.rs:79:16
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub(crate) struct MetaList<Keyword, ItemType> {
[INFO] [stdout]    |                   -------- field in this struct
[INFO] [stdout] 78 |     pub(crate) ident: Keyword,
[INFO] [stdout] 79 |     pub(crate) parens: token::Paren,
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MetaList` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `colon_token` is never read
[INFO] [stdout]    --> src/parser/meta_types.rs:113:16
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub(crate) struct IdentPatType {
[INFO] [stdout]     |                   ------------ field in this struct
[INFO] [stdout] 112 |     pub(crate) ident: syn::Ident,
[INFO] [stdout] 113 |     pub(crate) colon_token: Token![:],
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IdentPatType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.78s
[INFO] running `Command { std: "docker" "inspect" "398db12894bf781c5c6bd08e40a2deb17e67d5360832da4a553eaac296ce1cfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "398db12894bf781c5c6bd08e40a2deb17e67d5360832da4a553eaac296ce1cfd", kill_on_drop: false }`
[INFO] [stdout] 398db12894bf781c5c6bd08e40a2deb17e67d5360832da4a553eaac296ce1cfd