[INFO] fetching crate ergol_proc_macro 0.1.0...
[INFO] testing ergol_proc_macro-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate ergol_proc_macro 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate ergol_proc_macro 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d7818ed36e2b0b4fb31b8110386ffaa1a1919acfa99727d2b29a0df080dace5
[INFO] running `Command { std: "docker" "start" "-a" "8d7818ed36e2b0b4fb31b8110386ffaa1a1919acfa99727d2b29a0df080dace5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d7818ed36e2b0b4fb31b8110386ffaa1a1919acfa99727d2b29a0df080dace5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d7818ed36e2b0b4fb31b8110386ffaa1a1919acfa99727d2b29a0df080dace5", kill_on_drop: false }`
[INFO] [stdout] 8d7818ed36e2b0b4fb31b8110386ffaa1a1919acfa99727d2b29a0df080dace5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e4432d83101a9ed0994e5b84ba96e9a09fce04e29610ed031196b8ec73859c4
[INFO] running `Command { std: "docker" "start" "-a" "5e4432d83101a9ed0994e5b84ba96e9a09fce04e29610ed031196b8ec73859c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling case v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_json v1.0.67
[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 29.39s
[INFO] running `Command { std: "docker" "inspect" "5e4432d83101a9ed0994e5b84ba96e9a09fce04e29610ed031196b8ec73859c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e4432d83101a9ed0994e5b84ba96e9a09fce04e29610ed031196b8ec73859c4", kill_on_drop: false }`
[INFO] [stdout] 5e4432d83101a9ed0994e5b84ba96e9a09fce04e29610ed031196b8ec73859c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57d8b534fb30f44a07643fcaf429d2c149e5ea07d4f44a5c56a48ed024e7387e
[INFO] running `Command { std: "docker" "start" "-a" "57d8b534fb30f44a07643fcaf429d2c149e5ea07d4f44a5c56a48ed024e7387e", 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 2.23s
[INFO] running `Command { std: "docker" "inspect" "57d8b534fb30f44a07643fcaf429d2c149e5ea07d4f44a5c56a48ed024e7387e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57d8b534fb30f44a07643fcaf429d2c149e5ea07d4f44a5c56a48ed024e7387e", kill_on_drop: false }`
[INFO] [stdout] 57d8b534fb30f44a07643fcaf429d2c149e5ea07d4f44a5c56a48ed024e7387e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e1af95e1cc4ba11657801032875d796ae57eb330c786ec8015c524864261f29e
[INFO] running `Command { std: "docker" "start" "-a" "e1af95e1cc4ba11657801032875d796ae57eb330c786ec8015c524864261f29e", 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: `ergol_proc_macro` (lib) generated 1 warning
[INFO] [stderr] warning: `ergol_proc_macro` (lib test) generated 1 warning (1 duplicate)
[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-47e759e6014a1b96)
[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" "e1af95e1cc4ba11657801032875d796ae57eb330c786ec8015c524864261f29e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1af95e1cc4ba11657801032875d796ae57eb330c786ec8015c524864261f29e", kill_on_drop: false }`
[INFO] [stdout] e1af95e1cc4ba11657801032875d796ae57eb330c786ec8015c524864261f29e