[INFO] fetching crate zproto 0.4.2...
[INFO] checking zproto-0.4.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate zproto 0.4.2 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate zproto 0.4.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate zproto 0.4.2
[INFO] tweaked toml for crates.io crate zproto 0.4.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zproto 0.4.2 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate zproto 0.4.2 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f39f243406f25a38ba77d343257d5720f1b86297126f01b6cd1035bb899369a5
[INFO] running `Command { std: "docker" "start" "-a" "f39f243406f25a38ba77d343257d5720f1b86297126f01b6cd1035bb899369a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f39f243406f25a38ba77d343257d5720f1b86297126f01b6cd1035bb899369a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f39f243406f25a38ba77d343257d5720f1b86297126f01b6cd1035bb899369a5", kill_on_drop: false }`
[INFO] [stdout] f39f243406f25a38ba77d343257d5720f1b86297126f01b6cd1035bb899369a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97ebc409955cbd3f00a915f7c1dcae0e8b9a63a366e7ccd34b42b095936eb918
[INFO] running `Command { std: "docker" "start" "-a" "97ebc409955cbd3f00a915f7c1dcae0e8b9a63a366e7ccd34b42b095936eb918", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling time-core v0.1.3
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking log v0.4.26
[INFO] [stderr]     Checking bitflags v2.9.0
[INFO] [stderr]    Compiling time-macros v0.2.20
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking time v0.3.39
[INFO] [stderr]     Checking libudev v0.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]     Checking simple_logger v5.0.0
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking unescaper v0.1.5
[INFO] [stderr]     Checking serialport v4.7.0
[INFO] [stderr]     Checking zproto v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<binary::Version, Infallible>
[INFO] [stdout]    --> src/binary.rs:406:2
[INFO] [stdout]     |
[INFO] [stdout] 406 | /     {
[INFO] [stdout] 407 | |         Ok(Version(i32::try_from_data(buffer)?))
[INFO] [stdout] 408 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<binary::Version, Infallible>
[INFO] [stdout]    --> src/binary.rs:407:3
[INFO] [stdout]     |
[INFO] [stdout] 407 |         Ok(Version(i32::try_from_data(buffer)?))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, i32>
[INFO] [stdout]    --> src/binary.rs:407:14
[INFO] [stdout]     |
[INFO] [stdout] 407 |         Ok(Version(i32::try_from_data(buffer)?))
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]    --> src/binary.rs:407:14
[INFO] [stdout]     |
[INFO] [stdout] 407 |         Ok(Version(i32::try_from_data(buffer)?))
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<binary::Version, Infallible>
[INFO] [stdout]    --> src/binary.rs:407:14
[INFO] [stdout]     |
[INFO] [stdout] 407 |         Ok(Version(i32::try_from_data(buffer)?))
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<binary::IoStates, Infallible>
[INFO] [stdout]    --> src/binary.rs:552:2
[INFO] [stdout]     |
[INFO] [stdout] 552 | /     {
[INFO] [stdout] ...   |
[INFO] [stdout] 557 | |         Ok(IoStates(i32::try_from_data(buffer)? as u32))
[INFO] [stdout] 558 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<binary::IoStates, Infallible>
[INFO] [stdout]    --> src/binary.rs:557:3
[INFO] [stdout]     |
[INFO] [stdout] 557 |         Ok(IoStates(i32::try_from_data(buffer)? as u32))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, i32>
[INFO] [stdout]    --> src/binary.rs:557:15
[INFO] [stdout]     |
[INFO] [stdout] 557 |         Ok(IoStates(i32::try_from_data(buffer)? as u32))
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]    --> src/binary.rs:557:15
[INFO] [stdout]     |
[INFO] [stdout] 557 |         Ok(IoStates(i32::try_from_data(buffer)? as u32))
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<binary::IoStates, Infallible>
[INFO] [stdout]    --> src/binary.rs:557:15
[INFO] [stdout]     |
[INFO] [stdout] 557 |         Ok(IoStates(i32::try_from_data(buffer)? as u32))
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]   --> src/binary/traits.rs:97:65
[INFO] [stdout]    |
[INFO] [stdout] 97 |       fn try_from_data(buffer: [u8; 4]) -> Result<Self, Self::Error> {
[INFO] [stdout]    |  ____________________________________________________________________^
[INFO] [stdout] 98 | |         Ok(i32::from_le_bytes(buffer))
[INFO] [stdout] 99 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]   --> src/binary/traits.rs:98:3
[INFO] [stdout]    |
[INFO] [stdout] 98 |         Ok(i32::from_le_bytes(buffer))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<[u8; 4], Infallible>
[INFO] [stdout]    --> src/binary/traits.rs:109:65
[INFO] [stdout]     |
[INFO] [stdout] 109 |       fn try_from_data(buffer: [u8; 4]) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ____________________________________________________________________^
[INFO] [stdout] 110 | |         Ok(buffer)
[INFO] [stdout] 111 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<[u8; 4], Infallible>
[INFO] [stdout]    --> src/binary/traits.rs:110:3
[INFO] [stdout]     |
[INFO] [stdout] 110 |         Ok(buffer)
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]   --> src/error/binary.rs:52:3
[INFO] [stdout]    |
[INFO] [stdout] 52 |         self.0.data::<i32>().unwrap()
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `zproto` (lib) due to 15 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<binary::Version, Infallible>
[INFO] [stdout]    --> src/binary.rs:406:2
[INFO] [stdout]     |
[INFO] [stdout] 406 | /     {
[INFO] [stdout] 407 | |         Ok(Version(i32::try_from_data(buffer)?))
[INFO] [stdout] 408 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<binary::Version, Infallible>
[INFO] [stdout]    --> src/binary.rs:407:3
[INFO] [stdout]     |
[INFO] [stdout] 407 |         Ok(Version(i32::try_from_data(buffer)?))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, i32>
[INFO] [stdout]    --> src/binary.rs:407:14
[INFO] [stdout]     |
[INFO] [stdout] 407 |         Ok(Version(i32::try_from_data(buffer)?))
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]    --> src/binary.rs:407:14
[INFO] [stdout]     |
[INFO] [stdout] 407 |         Ok(Version(i32::try_from_data(buffer)?))
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<binary::Version, Infallible>
[INFO] [stdout]    --> src/binary.rs:407:14
[INFO] [stdout]     |
[INFO] [stdout] 407 |         Ok(Version(i32::try_from_data(buffer)?))
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<binary::IoStates, Infallible>
[INFO] [stdout]    --> src/binary.rs:552:2
[INFO] [stdout]     |
[INFO] [stdout] 552 | /     {
[INFO] [stdout] ...   |
[INFO] [stdout] 557 | |         Ok(IoStates(i32::try_from_data(buffer)? as u32))
[INFO] [stdout] 558 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<binary::IoStates, Infallible>
[INFO] [stdout]    --> src/binary.rs:557:3
[INFO] [stdout]     |
[INFO] [stdout] 557 |         Ok(IoStates(i32::try_from_data(buffer)? as u32))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, i32>
[INFO] [stdout]    --> src/binary.rs:557:15
[INFO] [stdout]     |
[INFO] [stdout] 557 |         Ok(IoStates(i32::try_from_data(buffer)? as u32))
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]    --> src/binary.rs:557:15
[INFO] [stdout]     |
[INFO] [stdout] 557 |         Ok(IoStates(i32::try_from_data(buffer)? as u32))
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<binary::IoStates, Infallible>
[INFO] [stdout]    --> src/binary.rs:557:15
[INFO] [stdout]     |
[INFO] [stdout] 557 |         Ok(IoStates(i32::try_from_data(buffer)? as u32))
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]     --> src/binary/port.rs:1100:14
[INFO] [stdout]      |
[INFO] [stdout] 1100 |         assert_eq!(reply.data().unwrap(), 0);
[INFO] [stdout]      |                    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]     --> src/binary/port.rs:1160:14
[INFO] [stdout]      |
[INFO] [stdout] 1160 |         assert_eq!(reply.data().unwrap(), 0);
[INFO] [stdout]      |                    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]     --> src/binary/port.rs:1170:15
[INFO] [stdout]      |
[INFO] [stdout] 1170 |             assert_eq!(reply.data().unwrap(), 0);
[INFO] [stdout]      |                        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]     --> src/binary/port.rs:1239:14
[INFO] [stdout]      |
[INFO] [stdout] 1239 |         assert_eq!(reply.data().unwrap(), 0);
[INFO] [stdout]      |                    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]     --> src/binary/port.rs:1249:15
[INFO] [stdout]      |
[INFO] [stdout] 1249 |             assert_eq!(reply.data().unwrap(), 0);
[INFO] [stdout]      |                        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]   --> src/binary/traits.rs:97:65
[INFO] [stdout]    |
[INFO] [stdout] 97 |       fn try_from_data(buffer: [u8; 4]) -> Result<Self, Self::Error> {
[INFO] [stdout]    |  ____________________________________________________________________^
[INFO] [stdout] 98 | |         Ok(i32::from_le_bytes(buffer))
[INFO] [stdout] 99 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]   --> src/binary/traits.rs:98:3
[INFO] [stdout]    |
[INFO] [stdout] 98 |         Ok(i32::from_le_bytes(buffer))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<[u8; 4], Infallible>
[INFO] [stdout]    --> src/binary/traits.rs:109:65
[INFO] [stdout]     |
[INFO] [stdout] 109 |       fn try_from_data(buffer: [u8; 4]) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ____________________________________________________________________^
[INFO] [stdout] 110 | |         Ok(buffer)
[INFO] [stdout] 111 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<[u8; 4], Infallible>
[INFO] [stdout]    --> src/binary/traits.rs:110:3
[INFO] [stdout]     |
[INFO] [stdout] 110 |         Ok(buffer)
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]    --> src/binary.rs:631:14
[INFO] [stdout]     |
[INFO] [stdout] 631 |         assert_eq!(message.data().unwrap(), 2);
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]    --> src/binary.rs:647:14
[INFO] [stdout]     |
[INFO] [stdout] 647 |         assert_eq!(message.data().unwrap(), i32::from_le_bytes([2, 0, 0, 1]));
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]   --> src/error/binary.rs:52:3
[INFO] [stdout]    |
[INFO] [stdout] 52 |         self.0.data::<i32>().unwrap()
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `zproto` (lib test) due to 22 previous errors
[INFO] running `Command { std: "docker" "inspect" "97ebc409955cbd3f00a915f7c1dcae0e8b9a63a366e7ccd34b42b095936eb918", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97ebc409955cbd3f00a915f7c1dcae0e8b9a63a366e7ccd34b42b095936eb918", kill_on_drop: false }`
[INFO] [stdout] 97ebc409955cbd3f00a915f7c1dcae0e8b9a63a366e7ccd34b42b095936eb918