[INFO] fetching crate cabin-macros 0.2.0...
[INFO] checking cabin-macros-0.2.0 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate cabin-macros 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate cabin-macros 0.2.0
[INFO] finished tweaking crates.io crate cabin-macros 0.2.0
[INFO] tweaked toml for crates.io crate cabin-macros 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cabin-macros 0.2.0 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b85f40cdbfd542b4c3048f796f8ac549f56b64914483b03a6d07ee1b0513f7f1
[INFO] running `Command { std: "docker" "start" "-a" "b85f40cdbfd542b4c3048f796f8ac549f56b64914483b03a6d07ee1b0513f7f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b85f40cdbfd542b4c3048f796f8ac549f56b64914483b03a6d07ee1b0513f7f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b85f40cdbfd542b4c3048f796f8ac549f56b64914483b03a6d07ee1b0513f7f1", kill_on_drop: false }`
[INFO] [stdout] b85f40cdbfd542b4c3048f796f8ac549f56b64914483b03a6d07ee1b0513f7f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4359efa488d4bc5eff3dba4b259198f7110ebfc2234d9784a87976d7a84a8cf7
[INFO] running `Command { std: "docker" "start" "-a" "4359efa488d4bc5eff3dba4b259198f7110ebfc2234d9784a87976d7a84a8cf7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking syn v2.0.106
[INFO] [stderr]     Checking cabin-macros v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `OptionExpr` is never constructed
[INFO] [stdout]   --> src/lib.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct OptionExpr {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OptionExpr` is never constructed
[INFO] [stdout]   --> src/lib.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct OptionExpr {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.10s
[INFO] running `Command { std: "docker" "inspect" "4359efa488d4bc5eff3dba4b259198f7110ebfc2234d9784a87976d7a84a8cf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4359efa488d4bc5eff3dba4b259198f7110ebfc2234d9784a87976d7a84a8cf7", kill_on_drop: false }`
[INFO] [stdout] 4359efa488d4bc5eff3dba4b259198f7110ebfc2234d9784a87976d7a84a8cf7