[INFO] fetching crate evitable-derive-core 0.5.0...
[INFO] checking evitable-derive-core-0.5.0 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate evitable-derive-core 0.5.0 into /workspace/builds/worker-76/source
[INFO] validating manifest of crates.io crate evitable-derive-core 0.5.0 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate evitable-derive-core 0.5.0
[INFO] finished tweaking crates.io crate evitable-derive-core 0.5.0
[INFO] tweaked toml for crates.io crate evitable-derive-core 0.5.0 written to /workspace/builds/worker-76/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded evitable-syn-meta-ext v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03128bc711d14c8f96714f7e2194b2c6edced99b6c0508782db1565205fb71f6
[INFO] running `Command { std: "docker" "start" "-a" "03128bc711d14c8f96714f7e2194b2c6edced99b6c0508782db1565205fb71f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03128bc711d14c8f96714f7e2194b2c6edced99b6c0508782db1565205fb71f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03128bc711d14c8f96714f7e2194b2c6edced99b6c0508782db1565205fb71f6", kill_on_drop: false }`
[INFO] [stdout] 03128bc711d14c8f96714f7e2194b2c6edced99b6c0508782db1565205fb71f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a037fea5c460f28ee33fa7898596ef5e21d988fae29c7ebd823e8539b335658
[INFO] running `Command { std: "docker" "start" "-a" "1a037fea5c460f28ee33fa7898596ef5e21d988fae29c7ebd823e8539b335658", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]     Checking ident_case v1.0.1
[INFO] [stderr]     Checking proc-macro2 v1.0.29
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking evitable-syn-meta-ext v0.5.0
[INFO] [stderr]     Checking evitable-derive-core v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `proc_macro2::Span`
[INFO] [stdout]  --> src/from_context.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use proc_macro2::Span;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `proc_macro2::Span`
[INFO] [stdout]  --> src/from_context.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use proc_macro2::Span;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `generics`
[INFO] [stdout]    --> src/lib.rs:237:3
[INFO] [stdout]     |
[INFO] [stdout] 237 |   generics: Generics,
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/lib.rs:678:5
[INFO] [stdout]     |
[INFO] [stdout] 678 |     std::mem::replace(attrs, a);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `generics`
[INFO] [stdout]    --> src/lib.rs:237:3
[INFO] [stdout]     |
[INFO] [stdout] 237 |   generics: Generics,
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/lib.rs:678:5
[INFO] [stdout]     |
[INFO] [stdout] 678 |     std::mem::replace(attrs, a);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.56s
[INFO] running `Command { std: "docker" "inspect" "1a037fea5c460f28ee33fa7898596ef5e21d988fae29c7ebd823e8539b335658", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a037fea5c460f28ee33fa7898596ef5e21d988fae29c7ebd823e8539b335658", kill_on_drop: false }`
[INFO] [stdout] 1a037fea5c460f28ee33fa7898596ef5e21d988fae29c7ebd823e8539b335658