[INFO] fetching crate uart8250 0.6.0...
[INFO] building uart8250-0.6.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate uart8250 0.6.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate uart8250 0.6.0
[INFO] finished tweaking crates.io crate uart8250 0.6.0
[INFO] tweaked toml for crates.io crate uart8250 0.6.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate uart8250 0.6.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2 (available: v2.9.4)
[INFO] [stderr]       Adding embedded-hal v0.2.7 (available: v1.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d98e48d36e191cf23c8d066ef3e5131601fcffe47a6024c17ca1d435c2589168
[INFO] running `Command { std: "docker" "start" "-a" "d98e48d36e191cf23c8d066ef3e5131601fcffe47a6024c17ca1d435c2589168", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d98e48d36e191cf23c8d066ef3e5131601fcffe47a6024c17ca1d435c2589168", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d98e48d36e191cf23c8d066ef3e5131601fcffe47a6024c17ca1d435c2589168", kill_on_drop: false }`
[INFO] [stdout] d98e48d36e191cf23c8d066ef3e5131601fcffe47a6024c17ca1d435c2589168
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4adad4a5e4abbbf2ff545d4321e2fca6f06f673ae9f20a97a35c261354bee908
[INFO] running `Command { std: "docker" "start" "-a" "4adad4a5e4abbbf2ff545d4321e2fca6f06f673ae9f20a97a35c261354bee908", kill_on_drop: false }`
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling volatile-register v0.2.2
[INFO] [stderr]    Compiling uart8250 v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/uart.rs:489:60
[INFO] [stdout]     |
[INFO] [stdout] 489 |             Parity::No => unsafe { self.reg.lcr.modify(|v| (v & 0b1100_0111)) },
[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] 489 -             Parity::No => unsafe { self.reg.lcr.modify(|v| (v & 0b1100_0111)) },
[INFO] [stdout] 489 +             Parity::No => unsafe { self.reg.lcr.modify(|v| v & 0b1100_0111 ) },
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "4adad4a5e4abbbf2ff545d4321e2fca6f06f673ae9f20a97a35c261354bee908", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4adad4a5e4abbbf2ff545d4321e2fca6f06f673ae9f20a97a35c261354bee908", kill_on_drop: false }`
[INFO] [stdout] 4adad4a5e4abbbf2ff545d4321e2fca6f06f673ae9f20a97a35c261354bee908
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6cf02dc1caa1276fe7537b845ee6e1ef605df89443dbcd812f0b4282fd795fbf
[INFO] running `Command { std: "docker" "start" "-a" "6cf02dc1caa1276fe7537b845ee6e1ef605df89443dbcd812f0b4282fd795fbf", kill_on_drop: false }`
[INFO] [stderr]    Compiling uart8250 v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/uart.rs:489:60
[INFO] [stdout]     |
[INFO] [stdout] 489 |             Parity::No => unsafe { self.reg.lcr.modify(|v| (v & 0b1100_0111)) },
[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] 489 -             Parity::No => unsafe { self.reg.lcr.modify(|v| (v & 0b1100_0111)) },
[INFO] [stdout] 489 +             Parity::No => unsafe { self.reg.lcr.modify(|v| v & 0b1100_0111 ) },
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/uart.rs:489:60
[INFO] [stdout]     |
[INFO] [stdout] 489 |             Parity::No => unsafe { self.reg.lcr.modify(|v| (v & 0b1100_0111)) },
[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] 489 -             Parity::No => unsafe { self.reg.lcr.modify(|v| (v & 0b1100_0111)) },
[INFO] [stdout] 489 +             Parity::No => unsafe { self.reg.lcr.modify(|v| v & 0b1100_0111 ) },
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "6cf02dc1caa1276fe7537b845ee6e1ef605df89443dbcd812f0b4282fd795fbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cf02dc1caa1276fe7537b845ee6e1ef605df89443dbcd812f0b4282fd795fbf", kill_on_drop: false }`
[INFO] [stdout] 6cf02dc1caa1276fe7537b845ee6e1ef605df89443dbcd812f0b4282fd795fbf