[INFO] fetching crate sea-strum_macros 0.23.0...
[INFO] checking sea-strum_macros-0.23.0 against try#24cd45d7714ba43afd4b8e62fb677b069b21c4a5 for pr-129543
[INFO] extracting crate sea-strum_macros 0.23.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate sea-strum_macros 0.23.0 on toolchain 24cd45d7714ba43afd4b8e62fb677b069b21c4a5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sea-strum_macros 0.23.0
[INFO] finished tweaking crates.io crate sea-strum_macros 0.23.0
[INFO] tweaked toml for crates.io crate sea-strum_macros 0.23.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 9 packages to latest compatible versions
[INFO] [stderr]       Adding heck v0.3.3 (latest: v0.5.0)
[INFO] [stderr]       Adding strum v0.20.0 (latest: v0.26.3)
[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" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7041ed06e9189675564bff7729fff000d861d6ecafae0ec0bf115f7dd276c8e
[INFO] running `Command { std: "docker" "start" "-a" "f7041ed06e9189675564bff7729fff000d861d6ecafae0ec0bf115f7dd276c8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7041ed06e9189675564bff7729fff000d861d6ecafae0ec0bf115f7dd276c8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7041ed06e9189675564bff7729fff000d861d6ecafae0ec0bf115f7dd276c8e", kill_on_drop: false }`
[INFO] [stdout] f7041ed06e9189675564bff7729fff000d861d6ecafae0ec0bf115f7dd276c8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43844bc32a222d5ebfe57da3ef3fef01b6eaa3cfa446e11dca6b36c8396bcbf6
[INFO] running `Command { std: "docker" "start" "-a" "43844bc32a222d5ebfe57da3ef3fef01b6eaa3cfa446e11dca6b36c8396bcbf6", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking unicode-segmentation v1.11.0
[INFO] [stderr]     Checking strum v0.20.0
[INFO] [stderr]     Checking heck v0.3.3
[INFO] [stderr]     Checking sea-strum_macros v0.23.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::case_style::CaseStyleHelpers`
[INFO] [stdout]  --> src/helpers/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use self::case_style::CaseStyleHelpers;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::case_style::CaseStyleHelpers`
[INFO] [stdout]  --> src/helpers/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use self::case_style::CaseStyleHelpers;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.56s
[INFO] running `Command { std: "docker" "inspect" "43844bc32a222d5ebfe57da3ef3fef01b6eaa3cfa446e11dca6b36c8396bcbf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43844bc32a222d5ebfe57da3ef3fef01b6eaa3cfa446e11dca6b36c8396bcbf6", kill_on_drop: false }`
[INFO] [stdout] 43844bc32a222d5ebfe57da3ef3fef01b6eaa3cfa446e11dca6b36c8396bcbf6