[INFO] fetching crate evitable-derive-core 0.5.0...
[INFO] checking evitable-derive-core-0.5.0 against master#3e826bb11228508fbe749e594038d6727208aa94 for pr-82322
[INFO] extracting crate evitable-derive-core 0.5.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate evitable-derive-core 0.5.0 on toolchain 3e826bb11228508fbe749e594038d6727208aa94
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 887b8efb10ee426d5f5c9bc16fdd272b58f06c188f7f443b68ecc55cfc2b9899
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "887b8efb10ee426d5f5c9bc16fdd272b58f06c188f7f443b68ecc55cfc2b9899", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "887b8efb10ee426d5f5c9bc16fdd272b58f06c188f7f443b68ecc55cfc2b9899", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "887b8efb10ee426d5f5c9bc16fdd272b58f06c188f7f443b68ecc55cfc2b9899", kill_on_drop: false }`
[INFO] [stdout] 887b8efb10ee426d5f5c9bc16fdd272b58f06c188f7f443b68ecc55cfc2b9899
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3100f47ce2234c2da880148f5665c6dda6172797794f81ab3f702d4e7e5cf32f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3100f47ce2234c2da880148f5665c6dda6172797794f81ab3f702d4e7e5cf32f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking ident_case v1.0.1
[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 7.56s
[INFO] running `Command { std: "docker" "inspect" "3100f47ce2234c2da880148f5665c6dda6172797794f81ab3f702d4e7e5cf32f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3100f47ce2234c2da880148f5665c6dda6172797794f81ab3f702d4e7e5cf32f", kill_on_drop: false }`
[INFO] [stdout] 3100f47ce2234c2da880148f5665c6dda6172797794f81ab3f702d4e7e5cf32f