[INFO] fetching crate xc3_write_derive 0.20.0...
[INFO] building xc3_write_derive-0.20.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate xc3_write_derive 0.20.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate xc3_write_derive 0.20.0
[INFO] finished tweaking crates.io crate xc3_write_derive 0.20.0
[INFO] tweaked toml for crates.io crate xc3_write_derive 0.20.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate xc3_write_derive 0.20.0 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate xc3_write_derive 0.20.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70d32b69e90086709bff06543d6e668af5f48279bc9dbdcb2b2c881161e4ea1f
[INFO] running `Command { std: "docker" "start" "-a" "70d32b69e90086709bff06543d6e668af5f48279bc9dbdcb2b2c881161e4ea1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70d32b69e90086709bff06543d6e668af5f48279bc9dbdcb2b2c881161e4ea1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70d32b69e90086709bff06543d6e668af5f48279bc9dbdcb2b2c881161e4ea1f", kill_on_drop: false }`
[INFO] [stdout] 70d32b69e90086709bff06543d6e668af5f48279bc9dbdcb2b2c881161e4ea1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09fa87ee5a74f4a0cd3a2f71888154c6ee8ca90e19f8fd3da4a95789fb1368f1
[INFO] running `Command { std: "docker" "start" "-a" "09fa87ee5a74f4a0cd3a2f71888154c6ee8ca90e19f8fd3da4a95789fb1368f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling xc3_write_derive v0.20.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/attribute.rs:108:23
[INFO] [stdout]     |
[INFO] [stdout] 108 |         .and_then(|_| (content.parse::<LitInt>()?.base10_parse()))
[INFO] [stdout]     |                       ^                                         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 108 -         .and_then(|_| (content.parse::<LitInt>()?.base10_parse()))
[INFO] [stdout] 108 +         .and_then(|_| content.parse::<LitInt>()?.base10_parse())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.06s
[INFO] running `Command { std: "docker" "inspect" "09fa87ee5a74f4a0cd3a2f71888154c6ee8ca90e19f8fd3da4a95789fb1368f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09fa87ee5a74f4a0cd3a2f71888154c6ee8ca90e19f8fd3da4a95789fb1368f1", kill_on_drop: false }`
[INFO] [stdout] 09fa87ee5a74f4a0cd3a2f71888154c6ee8ca90e19f8fd3da4a95789fb1368f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 949a095cb1d7411c7d33d6288d467503bf17e41e42495597d2c703ab3e5bf1ed
[INFO] running `Command { std: "docker" "start" "-a" "949a095cb1d7411c7d33d6288d467503bf17e41e42495597d2c703ab3e5bf1ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling xc3_write_derive v0.20.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/attribute.rs:108:23
[INFO] [stdout]     |
[INFO] [stdout] 108 |         .and_then(|_| (content.parse::<LitInt>()?.base10_parse()))
[INFO] [stdout]     |                       ^                                         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 108 -         .and_then(|_| (content.parse::<LitInt>()?.base10_parse()))
[INFO] [stdout] 108 +         .and_then(|_| content.parse::<LitInt>()?.base10_parse())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/attribute.rs:108:23
[INFO] [stdout]     |
[INFO] [stdout] 108 |         .and_then(|_| (content.parse::<LitInt>()?.base10_parse()))
[INFO] [stdout]     |                       ^                                         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 108 -         .and_then(|_| (content.parse::<LitInt>()?.base10_parse()))
[INFO] [stdout] 108 +         .and_then(|_| content.parse::<LitInt>()?.base10_parse())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "949a095cb1d7411c7d33d6288d467503bf17e41e42495597d2c703ab3e5bf1ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "949a095cb1d7411c7d33d6288d467503bf17e41e42495597d2c703ab3e5bf1ed", kill_on_drop: false }`
[INFO] [stdout] 949a095cb1d7411c7d33d6288d467503bf17e41e42495597d2c703ab3e5bf1ed