[INFO] fetching crate lzss 0.9.1... [INFO] checking lzss-0.9.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate lzss 0.9.1 into /workspace/builds/worker-2-tc2/source [INFO] started tweaking crates.io crate lzss 0.9.1 [INFO] finished tweaking crates.io crate lzss 0.9.1 [INFO] tweaked toml for crates.io crate lzss 0.9.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate lzss 0.9.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 70 packages to latest compatible versions [INFO] [stderr] Adding criterion v0.4.0 (available: v0.7.0) [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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] bd67720ff0278a90f0685bdc99b39166f1d9eff6026794a8ddfb17c6393dcf8f [INFO] running `Command { std: "docker" "start" "-a" "bd67720ff0278a90f0685bdc99b39166f1d9eff6026794a8ddfb17c6393dcf8f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bd67720ff0278a90f0685bdc99b39166f1d9eff6026794a8ddfb17c6393dcf8f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bd67720ff0278a90f0685bdc99b39166f1d9eff6026794a8ddfb17c6393dcf8f", kill_on_drop: false }` [INFO] [stdout] bd67720ff0278a90f0685bdc99b39166f1d9eff6026794a8ddfb17c6393dcf8f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2bccc347cc0286bda0a7f5abb0c46127bda095b68653417b952215ca7bf8da63 [INFO] running `Command { std: "docker" "start" "-a" "2bccc347cc0286bda0a7f5abb0c46127bda095b68653417b952215ca7bf8da63", kill_on_drop: false }` [INFO] [stderr] Compiling syn v2.0.110 [INFO] [stderr] Checking os_str_bytes v6.6.1 [INFO] [stderr] Checking indexmap v1.9.3 [INFO] [stderr] Checking textwrap v0.16.2 [INFO] [stderr] Compiling lzss v0.9.1 (/opt/rustwide/workdir) [INFO] [stderr] Checking criterion-plot v0.5.0 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking clap_lex v0.2.4 [INFO] [stderr] Checking clap v3.2.25 [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/bits.rs:11:31 [INFO] [stdout] | [INFO] [stdout] 11 | pub(crate) fn new(reader: &mut R) -> BitReader { [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] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 11 | pub(crate) fn new(reader: &mut R) -> BitReader<'_, R> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/bits.rs:43:31 [INFO] [stdout] | [INFO] [stdout] 43 | pub(crate) fn new(writer: &mut W) -> BitWriter { [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] 43 | pub(crate) fn new(writer: &mut W) -> BitWriter<'_, W> { [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: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:36:58 [INFO] [stdout] | [INFO] [stdout] 36 | fn finish(self) -> Result { [INFO] [stdout] | __________________________________________________________^ [INFO] [stdout] 37 | | Ok(self.0) [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/vec.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | Ok(self.0) [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `lzss` (lib) due to 8 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "2bccc347cc0286bda0a7f5abb0c46127bda095b68653417b952215ca7bf8da63", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2bccc347cc0286bda0a7f5abb0c46127bda095b68653417b952215ca7bf8da63", kill_on_drop: false }` [INFO] [stdout] 2bccc347cc0286bda0a7f5abb0c46127bda095b68653417b952215ca7bf8da63