[INFO] fetching crate ergol_proc_macro 0.1.0...
[INFO] testing ergol_proc_macro-0.1.0 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate ergol_proc_macro 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ergol_proc_macro 0.1.0 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ergol_proc_macro 0.1.0
[INFO] finished tweaking crates.io crate ergol_proc_macro 0.1.0
[INFO] tweaked toml for crates.io crate ergol_proc_macro 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] adfadce076e14ba9c0f05c18dcdcab0a23b0f6d11b60bb1ac8af42308c3741f8
[INFO] running `Command { std: "docker" "start" "-a" "adfadce076e14ba9c0f05c18dcdcab0a23b0f6d11b60bb1ac8af42308c3741f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "adfadce076e14ba9c0f05c18dcdcab0a23b0f6d11b60bb1ac8af42308c3741f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adfadce076e14ba9c0f05c18dcdcab0a23b0f6d11b60bb1ac8af42308c3741f8", kill_on_drop: false }`
[INFO] [stdout] adfadce076e14ba9c0f05c18dcdcab0a23b0f6d11b60bb1ac8af42308c3741f8
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fb713cf468376b67e79bf7d4d0e44199fef8fccc84979a23e304f1090b50f53
[INFO] running `Command { std: "docker" "start" "-a" "7fb713cf468376b67e79bf7d4d0e44199fef8fccc84979a23e304f1090b50f53", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling case v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling ergol_core v0.1.0
[INFO] [stderr]    Compiling ergol_proc_macro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `paren_token`
[INFO] [stdout]    --> src/ergol.rs:767:5
[INFO] [stdout]     |
[INFO] [stdout] 767 |     pub paren_token: token::Paren,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.92s
[INFO] running `Command { std: "docker" "inspect" "7fb713cf468376b67e79bf7d4d0e44199fef8fccc84979a23e304f1090b50f53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fb713cf468376b67e79bf7d4d0e44199fef8fccc84979a23e304f1090b50f53", kill_on_drop: false }`
[INFO] [stdout] 7fb713cf468376b67e79bf7d4d0e44199fef8fccc84979a23e304f1090b50f53
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9369c5ceccfe686f661adc99b71150180d9acbe28d74aab9774d86093b897a8
[INFO] running `Command { std: "docker" "start" "-a" "a9369c5ceccfe686f661adc99b71150180d9acbe28d74aab9774d86093b897a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling ergol_proc_macro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `paren_token`
[INFO] [stdout]    --> src/ergol.rs:767:5
[INFO] [stdout]     |
[INFO] [stdout] 767 |     pub paren_token: token::Paren,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `paren_token`
[INFO] [stdout]    --> src/ergol.rs:767:5
[INFO] [stdout]     |
[INFO] [stdout] 767 |     pub paren_token: token::Paren,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.32s
[INFO] running `Command { std: "docker" "inspect" "a9369c5ceccfe686f661adc99b71150180d9acbe28d74aab9774d86093b897a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9369c5ceccfe686f661adc99b71150180d9acbe28d74aab9774d86093b897a8", kill_on_drop: false }`
[INFO] [stdout] a9369c5ceccfe686f661adc99b71150180d9acbe28d74aab9774d86093b897a8
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f03cdcdf546aefaa4da6f5a400530d2c41626fd8280f919bb0740627131234c4
[INFO] running `Command { std: "docker" "start" "-a" "f03cdcdf546aefaa4da6f5a400530d2c41626fd8280f919bb0740627131234c4", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `paren_token`
[INFO] [stderr]    --> src/ergol.rs:767:5
[INFO] [stderr]     |
[INFO] [stderr] 767 |     pub paren_token: token::Paren,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `paren_token`
[INFO] [stderr]    --> src/ergol.rs:767:5
[INFO] [stderr]     |
[INFO] [stderr] 767 |     pub paren_token: token::Paren,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ergol_proc_macro-45b890b29714f8e7)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests ergol_proc_macro
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f03cdcdf546aefaa4da6f5a400530d2c41626fd8280f919bb0740627131234c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f03cdcdf546aefaa4da6f5a400530d2c41626fd8280f919bb0740627131234c4", kill_on_drop: false }`
[INFO] [stdout] f03cdcdf546aefaa4da6f5a400530d2c41626fd8280f919bb0740627131234c4