[INFO] fetching crate identifier_derive 0.1.3...
[INFO] testing identifier_derive-0.1.3 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate identifier_derive 0.1.3 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate identifier_derive 0.1.3 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate identifier_derive 0.1.3
[INFO] finished tweaking crates.io crate identifier_derive 0.1.3
[INFO] tweaked toml for crates.io crate identifier_derive 0.1.3 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dbb96c7bfa5281b77407a5176b92f4027979f334f6a97ebcec046ccbaacd025d
[INFO] running `Command { std: "docker" "start" "-a" "dbb96c7bfa5281b77407a5176b92f4027979f334f6a97ebcec046ccbaacd025d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbb96c7bfa5281b77407a5176b92f4027979f334f6a97ebcec046ccbaacd025d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbb96c7bfa5281b77407a5176b92f4027979f334f6a97ebcec046ccbaacd025d", kill_on_drop: false }`
[INFO] [stdout] dbb96c7bfa5281b77407a5176b92f4027979f334f6a97ebcec046ccbaacd025d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb4c26e3d5f8815be9196c5010a4cf20ab1408f6b1c30137e3b347e6b8064c3d
[INFO] running `Command { std: "docker" "start" "-a" "bb4c26e3d5f8815be9196c5010a4cf20ab1408f6b1c30137e3b347e6b8064c3d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling identifier_derive v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `tokens`
[INFO] [stdout]   --> src/internals/attr.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     tokens: TokenStream,
[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 4.00s
[INFO] running `Command { std: "docker" "inspect" "bb4c26e3d5f8815be9196c5010a4cf20ab1408f6b1c30137e3b347e6b8064c3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb4c26e3d5f8815be9196c5010a4cf20ab1408f6b1c30137e3b347e6b8064c3d", kill_on_drop: false }`
[INFO] [stdout] bb4c26e3d5f8815be9196c5010a4cf20ab1408f6b1c30137e3b347e6b8064c3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2976ed4aa2d75d444d2c09a5a940a68473c9288051d2c6e53056f15620f8b24
[INFO] running `Command { std: "docker" "start" "-a" "a2976ed4aa2d75d444d2c09a5a940a68473c9288051d2c6e53056f15620f8b24", kill_on_drop: false }`
[INFO] [stdout] warning: field is never read: `tokens`
[INFO] [stdout]   --> src/internals/attr.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     tokens: TokenStream,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling identifier_derive v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `tokens`
[INFO] [stdout]   --> src/internals/attr.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     tokens: TokenStream,
[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 0.42s
[INFO] running `Command { std: "docker" "inspect" "a2976ed4aa2d75d444d2c09a5a940a68473c9288051d2c6e53056f15620f8b24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2976ed4aa2d75d444d2c09a5a940a68473c9288051d2c6e53056f15620f8b24", kill_on_drop: false }`
[INFO] [stdout] a2976ed4aa2d75d444d2c09a5a940a68473c9288051d2c6e53056f15620f8b24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d685fb3e5c94550194e5cb6e4c1d562837b3608a52b05d09024385ebe23bdb44
[INFO] running `Command { std: "docker" "start" "-a" "d685fb3e5c94550194e5cb6e4c1d562837b3608a52b05d09024385ebe23bdb44", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `tokens`
[INFO] [stderr]   --> src/internals/attr.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     tokens: TokenStream,
[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: `tokens`
[INFO] [stderr]   --> src/internals/attr.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     tokens: TokenStream,
[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 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/identifier_derive-47ec4fe626102fb6)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests identifier_derive
[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] [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" "d685fb3e5c94550194e5cb6e4c1d562837b3608a52b05d09024385ebe23bdb44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d685fb3e5c94550194e5cb6e4c1d562837b3608a52b05d09024385ebe23bdb44", kill_on_drop: false }`
[INFO] [stdout] d685fb3e5c94550194e5cb6e4c1d562837b3608a52b05d09024385ebe23bdb44