[INFO] fetching crate coap-lite 0.13.3... [INFO] checking coap-lite-0.13.3 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate coap-lite 0.13.3 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate coap-lite 0.13.3 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate coap-lite 0.13.3 [INFO] tweaked toml for crates.io crate coap-lite 0.13.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate coap-lite 0.13.3 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 coap-lite 0.13.3 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c8b91cc53a637a8db0495417c4f19f55104abd343699424863d4c98ca7ddef94 [INFO] running `Command { std: "docker" "start" "-a" "c8b91cc53a637a8db0495417c4f19f55104abd343699424863d4c98ca7ddef94", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c8b91cc53a637a8db0495417c4f19f55104abd343699424863d4c98ca7ddef94", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c8b91cc53a637a8db0495417c4f19f55104abd343699424863d4c98ca7ddef94", kill_on_drop: false }` [INFO] [stdout] c8b91cc53a637a8db0495417c4f19f55104abd343699424863d4c98ca7ddef94 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 4dfc55793a4c2fabee60cb6a1064da15110de8b631ddd2177dbf38323cb69408 [INFO] running `Command { std: "docker" "start" "-a" "4dfc55793a4c2fabee60cb6a1064da15110de8b631ddd2177dbf38323cb69408", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.85 [INFO] [stderr] Compiling serde v1.0.203 [INFO] [stderr] Compiling minicbor v0.19.1 [INFO] [stderr] Compiling heapless v0.5.6 [INFO] [stderr] Compiling generic-array v0.14.7 [INFO] [stderr] Checking generic-array v0.13.3 [INFO] [stderr] Checking generic-array v0.12.4 [INFO] [stderr] Checking coap-message v0.3.2 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Checking hash32 v0.1.1 [INFO] [stderr] Checking coap-numbers v0.2.4 [INFO] [stderr] Checking half v1.8.3 [INFO] [stderr] Checking crc v3.2.1 [INFO] [stderr] Compiling document-features v0.2.8 [INFO] [stderr] Checking embedded-io v0.4.0 [INFO] [stderr] Checking ciborium-io v0.2.2 [INFO] [stderr] Checking coap-handler v0.2.0 [INFO] [stderr] Checking lru_time_cache v0.11.11 [INFO] [stderr] Checking coap-message v0.2.3 [INFO] [stderr] Checking coap-lite v0.13.3 (/opt/rustwide/workdir) [INFO] [stderr] Checking as-slice v0.1.5 [INFO] [stderr] Checking crypto-common v0.1.6 [INFO] [stderr] Checking block-buffer v0.10.4 [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/block_handler/mod.rs:410:10 [INFO] [stdout] | [INFO] [stdout] 410 | dst: &mut Vec, [INFO] [stdout] | ^^^^^^^^^^^ the lifetime is elided here [INFO] [stdout] ... [INFO] [stdout] 414 | ) -> Result, String> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 414 | ) -> Result, String> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/packet.rs:379:20 [INFO] [stdout] | [INFO] [stdout] 379 | pub fn options(&self) -> Options { [INFO] [stdout] | ^^^^^ ^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 379 | pub fn options(&self) -> Options<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/impl_coap_message_0_3.rs:15:65 [INFO] [stdout] | [INFO] [stdout] 15 | fn new(code: u8) -> Result { [INFO] [stdout] | _________________________________________________________________^ [INFO] [stdout] 16 | | Ok(code.into()) [INFO] [stdout] 17 | | } [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 [INFO] [stdout] --> src/impl_coap_message_0_3.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | Ok(code.into()) [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/impl_coap_message_0_3.rs:93:68 [INFO] [stdout] | [INFO] [stdout] 93 | fn new(option: u16) -> Result { [INFO] [stdout] | ____________________________________________________________________^ [INFO] [stdout] 94 | | Ok(option.into()) [INFO] [stdout] 95 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/impl_coap_message_0_3.rs:94:9 [INFO] [stdout] | [INFO] [stdout] 94 | Ok(option.into()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result<&mut [u8], Infallible> [INFO] [stdout] --> src/impl_coap_message_0_3.rs:135:51 [INFO] [stdout] | [INFO] [stdout] 135 | ) -> Result<&mut [u8], Self::SetPayloadError> { [INFO] [stdout] | ___________________________________________________^ [INFO] [stdout] 136 | | self.payload.resize(len, 0); [INFO] [stdout] 137 | | Ok(&mut self.payload) [INFO] [stdout] 138 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result<&mut [u8], Infallible> [INFO] [stdout] --> src/impl_coap_message_0_3.rs:137:9 [INFO] [stdout] | [INFO] [stdout] 137 | Ok(&mut self.payload) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `coap-lite` (lib) due to 6 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "4dfc55793a4c2fabee60cb6a1064da15110de8b631ddd2177dbf38323cb69408", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4dfc55793a4c2fabee60cb6a1064da15110de8b631ddd2177dbf38323cb69408", kill_on_drop: false }` [INFO] [stdout] 4dfc55793a4c2fabee60cb6a1064da15110de8b631ddd2177dbf38323cb69408