[INFO] fetching crate lzs 0.1.1... [INFO] checking lzs-0.1.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate lzs 0.1.1 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate lzs 0.1.1 [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate lzs 0.1.1 [INFO] tweaked toml for crates.io crate lzs 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate lzs 0.1.1 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 lzs 0.1.1 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] 79b14717fa5fa5c454d80eddf1e98b9959521f3c687277db5549667d9b53c3ba [INFO] running `Command { std: "docker" "start" "-a" "79b14717fa5fa5c454d80eddf1e98b9959521f3c687277db5549667d9b53c3ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "79b14717fa5fa5c454d80eddf1e98b9959521f3c687277db5549667d9b53c3ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "79b14717fa5fa5c454d80eddf1e98b9959521f3c687277db5549667d9b53c3ba", kill_on_drop: false }` [INFO] [stdout] 79b14717fa5fa5c454d80eddf1e98b9959521f3c687277db5549667d9b53c3ba [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] be1532a0f10a3401f17d8561a09712eb5953edc46dc58420bbeee3307d8f7a2c [INFO] running `Command { std: "docker" "start" "-a" "be1532a0f10a3401f17d8561a09712eb5953edc46dc58420bbeee3307d8f7a2c", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.95 [INFO] [stderr] Compiling crossbeam-utils v0.8.21 [INFO] [stderr] Compiling serde v1.0.219 [INFO] [stderr] Checking either v1.15.0 [INFO] [stderr] Compiling serde_json v1.0.140 [INFO] [stderr] Checking regex-syntax v0.7.5 [INFO] [stderr] Checking plotters-backend v0.3.7 [INFO] [stderr] Checking itoa v1.0.15 [INFO] [stderr] Checking ciborium-io v0.2.2 [INFO] [stderr] Checking anstyle v1.0.2 [INFO] [stderr] Checking ryu v1.0.20 [INFO] [stderr] Checking half v2.2.1 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling libc v0.2.172 [INFO] [stderr] Checking clap_lex v0.5.0 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking cast v0.3.0 [INFO] [stderr] Checking once_cell v1.20.3 [INFO] [stderr] Checking anes v0.1.6 [INFO] [stderr] Checking walkdir v2.5.0 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking oorandom v11.1.5 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking clap_builder v4.3.24 [INFO] [stderr] Checking lzs v0.1.1 (/opt/rustwide/workdir) [INFO] [stderr] Checking ciborium-ll v0.2.2 [INFO] [stderr] Checking plotters-svg v0.3.7 [INFO] [stdout] error: this type will no longer be must used: Result, Void> [INFO] [stdout] --> src/slice_safe.rs:32:59 [INFO] [stdout] | [INFO] [stdout] 32 | fn read(&mut self) -> Result, Self::Error> { [INFO] [stdout] | ___________________________________________________________^ [INFO] [stdout] 33 | | if let Some((&first, rest)) = self.data.split_first() { [INFO] [stdout] 34 | | self.data = rest; [INFO] [stdout] 35 | | Ok(Some(first)) [INFO] [stdout] ... | [INFO] [stdout] 39 | | } [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, Void> [INFO] [stdout] --> src/slice_safe.rs:33:9 [INFO] [stdout] | [INFO] [stdout] 33 | / if let Some((&first, rest)) = self.data.split_first() { [INFO] [stdout] 34 | | self.data = rest; [INFO] [stdout] 35 | | Ok(Some(first)) [INFO] [stdout] 36 | | } else { [INFO] [stdout] 37 | | Ok(None) [INFO] [stdout] 38 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Void> [INFO] [stdout] --> src/slice_safe.rs:33:63 [INFO] [stdout] | [INFO] [stdout] 33 | if let Some((&first, rest)) = self.data.split_first() { [INFO] [stdout] | _______________________________________________________________^ [INFO] [stdout] 34 | | self.data = rest; [INFO] [stdout] 35 | | Ok(Some(first)) [INFO] [stdout] 36 | | } else { [INFO] [stdout] | |_________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Void> [INFO] [stdout] --> src/slice_safe.rs:35:13 [INFO] [stdout] | [INFO] [stdout] 35 | Ok(Some(first)) [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Void> [INFO] [stdout] --> src/slice_safe.rs:36:16 [INFO] [stdout] | [INFO] [stdout] 36 | } else { [INFO] [stdout] | ________________^ [INFO] [stdout] 37 | | Ok(None) [INFO] [stdout] 38 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Void> [INFO] [stdout] --> src/slice_safe.rs:37:13 [INFO] [stdout] | [INFO] [stdout] 37 | Ok(None) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Void> [INFO] [stdout] --> src/vec.rs:37:58 [INFO] [stdout] | [INFO] [stdout] 37 | fn finish(self) -> Result { [INFO] [stdout] | __________________________________________________________^ [INFO] [stdout] 38 | | Ok(self.0) [INFO] [stdout] 39 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Void> [INFO] [stdout] --> src/vec.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | Ok(self.0) [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `lzs` (lib) due to 8 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "be1532a0f10a3401f17d8561a09712eb5953edc46dc58420bbeee3307d8f7a2c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "be1532a0f10a3401f17d8561a09712eb5953edc46dc58420bbeee3307d8f7a2c", kill_on_drop: false }` [INFO] [stdout] be1532a0f10a3401f17d8561a09712eb5953edc46dc58420bbeee3307d8f7a2c