[INFO] fetching crate uart8250 0.5.0...
[INFO] checking uart8250-0.5.0 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate uart8250 0.5.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate uart8250 0.5.0 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate uart8250 0.5.0
[INFO] finished tweaking crates.io crate uart8250 0.5.0
[INFO] tweaked toml for crates.io crate uart8250 0.5.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8cca4c8650070b2121d0a75d0baa3856a8d7d63bf8903b0f1acf94188da6cba4
[INFO] running `Command { std: "docker" "start" "-a" "8cca4c8650070b2121d0a75d0baa3856a8d7d63bf8903b0f1acf94188da6cba4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8cca4c8650070b2121d0a75d0baa3856a8d7d63bf8903b0f1acf94188da6cba4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cca4c8650070b2121d0a75d0baa3856a8d7d63bf8903b0f1acf94188da6cba4", kill_on_drop: false }`
[INFO] [stdout] 8cca4c8650070b2121d0a75d0baa3856a8d7d63bf8903b0f1acf94188da6cba4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c66ad86818141ff4a8fe369cf0a0721e73587d324220908148034f568f3b719f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c66ad86818141ff4a8fe369cf0a0721e73587d324220908148034f568f3b719f", kill_on_drop: false }`
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]     Checking uart8250 v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/registers.rs:8:71
[INFO] [stdout]     |
[INFO] [stdout] 8   |         unsafe { &mut *(($expr) as *mut crate::registers::Registers) };
[INFO] [stdout]     |                                                                       ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/uart.rs:106:18
[INFO] [stdout]     |
[INFO] [stdout] 106 |             reg: cast!(base_address),
[INFO] [stdout]     |                  ------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `cast` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/registers.rs:8:71
[INFO] [stdout]     |
[INFO] [stdout] 8   |         unsafe { &mut *(($expr) as *mut crate::registers::Registers) };
[INFO] [stdout]     |                                                                       ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/uart.rs:131:20
[INFO] [stdout]     |
[INFO] [stdout] 131 |         self.reg = cast!(base_address);
[INFO] [stdout]     |                    ------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `cast` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/registers.rs:8:71
[INFO] [stdout]     |
[INFO] [stdout] 8   |         unsafe { &mut *(($expr) as *mut crate::registers::Registers) };
[INFO] [stdout]     |                                                                       ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/uart.rs:106:18
[INFO] [stdout]     |
[INFO] [stdout] 106 |             reg: cast!(base_address),
[INFO] [stdout]     |                  ------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `cast` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/registers.rs:8:71
[INFO] [stdout]     |
[INFO] [stdout] 8   |         unsafe { &mut *(($expr) as *mut crate::registers::Registers) };
[INFO] [stdout]     |                                                                       ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/uart.rs:131:20
[INFO] [stdout]     |
[INFO] [stdout] 131 |         self.reg = cast!(base_address);
[INFO] [stdout]     |                    ------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `cast` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "c66ad86818141ff4a8fe369cf0a0721e73587d324220908148034f568f3b719f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c66ad86818141ff4a8fe369cf0a0721e73587d324220908148034f568f3b719f", kill_on_drop: false }`
[INFO] [stdout] c66ad86818141ff4a8fe369cf0a0721e73587d324220908148034f568f3b719f