[INFO] fetching crate zencan-node 0.0.1...
[INFO] checking zencan-node-0.0.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate zencan-node 0.0.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate zencan-node 0.0.1
[INFO] finished tweaking crates.io crate zencan-node 0.0.1
[INFO] tweaked toml for crates.io crate zencan-node 0.0.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zencan-node 0.0.1 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 zencan-node 0.0.1 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] 1368e4bdd89548f9582164a10fcaf164aa3b4c481f2a04ed6f161dfb817e7e20
[INFO] running `Command { std: "docker" "start" "-a" "1368e4bdd89548f9582164a10fcaf164aa3b4c481f2a04ed6f161dfb817e7e20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1368e4bdd89548f9582164a10fcaf164aa3b4c481f2a04ed6f161dfb817e7e20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1368e4bdd89548f9582164a10fcaf164aa3b4c481f2a04ed6f161dfb817e7e20", kill_on_drop: false }`
[INFO] [stdout] 1368e4bdd89548f9582164a10fcaf164aa3b4c481f2a04ed6f161dfb817e7e20
[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] a89c7524321e18757ea0d3004a4feec9405a4a8c7cd0d8b13caf4091cbbad78e
[INFO] running `Command { std: "docker" "start" "-a" "a89c7524321e18757ea0d3004a4feec9405a4a8c7cd0d8b13caf4091cbbad78e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.10.1
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]    Compiling critical-section v1.2.0
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling crc16 v0.4.0
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]     Checking embedded-io v0.6.1
[INFO] [stderr]     Checking static_cell v2.1.1
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling snafu-derive v0.8.9
[INFO] [stderr]    Compiling defmt-or-log-macros v0.1.2
[INFO] [stderr]    Compiling int-enum v1.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling defmt-or-log v0.2.3
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling snafu v0.8.9
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]    Compiling serde_spanned v0.6.9
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]     Checking toml_edit v0.22.27
[INFO] [stderr]     Checking toml v0.8.23
[INFO] [stderr]     Checking zencan-common v0.0.1
[INFO] [stderr]    Compiling zencan-build v0.0.1
[INFO] [stderr]    Compiling zencan-macro v0.0.1
[INFO] [stderr]     Checking zencan-node v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/persist.rs:136:69
[INFO] [stdout]     |
[INFO] [stdout] 136 |       fn read(&mut self, buf: &mut [u8]) -> Result<usize, Infallible> {
[INFO] [stdout]     |  _____________________________________________________________________^
[INFO] [stdout] 137 | |         let mut cx = Context::from_waker(noop_waker_ref());
[INFO] [stdout] 138 | |
[INFO] [stdout] 139 | |         let mut pos = 0;
[INFO] [stdout] ...   |
[INFO] [stdout] 153 | |     }
[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<usize, Infallible>
[INFO] [stdout]    --> src/persist.rs:142:24
[INFO] [stdout]     |
[INFO] [stdout] 142 |                 return Ok(pos);
[INFO] [stdout]     |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/persist.rs:146:54
[INFO] [stdout]     |
[INFO] [stdout] 146 |                 core::task::Poll::Ready(_) => return Ok(pos),
[INFO] [stdout]     |                                                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `zencan-node` (lib) due to 3 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<usize, Infallible>
[INFO] [stdout]    --> src/persist.rs:136:69
[INFO] [stdout]     |
[INFO] [stdout] 136 |       fn read(&mut self, buf: &mut [u8]) -> Result<usize, Infallible> {
[INFO] [stdout]     |  _____________________________________________________________________^
[INFO] [stdout] 137 | |         let mut cx = Context::from_waker(noop_waker_ref());
[INFO] [stdout] 138 | |
[INFO] [stdout] 139 | |         let mut pos = 0;
[INFO] [stdout] ...   |
[INFO] [stdout] 153 | |     }
[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<usize, Infallible>
[INFO] [stdout]    --> src/persist.rs:142:24
[INFO] [stdout]     |
[INFO] [stdout] 142 |                 return Ok(pos);
[INFO] [stdout]     |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/persist.rs:146:54
[INFO] [stdout]     |
[INFO] [stdout] 146 |                 core::task::Poll::Ready(_) => return Ok(pos),
[INFO] [stdout]     |                                                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/persist.rs:386:25
[INFO] [stdout]     |
[INFO] [stdout] 386 |                 let n = reader.read(&mut buf).unwrap();
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<[u8; 7], Infallible>
[INFO] [stdout]    --> src/sdo_server/sdo_server.rs:835:23
[INFO] [stdout]     |
[INFO] [stdout] 835 |                 data: chunk.try_into().unwrap(),
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `zencan-node` (lib test) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "a89c7524321e18757ea0d3004a4feec9405a4a8c7cd0d8b13caf4091cbbad78e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a89c7524321e18757ea0d3004a4feec9405a4a8c7cd0d8b13caf4091cbbad78e", kill_on_drop: false }`
[INFO] [stdout] a89c7524321e18757ea0d3004a4feec9405a4a8c7cd0d8b13caf4091cbbad78e