[INFO] cloning repository https://github.com/RustyYato/double-buffer [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RustyYato/double-buffer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRustyYato%2Fdouble-buffer", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRustyYato%2Fdouble-buffer'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b3ee50e221e71aec30924adbbb57c0cf3f4472a4 [INFO] checking RustyYato/double-buffer against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRustyYato%2Fdouble-buffer" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/RustyYato/double-buffer [INFO] finished tweaking git repo https://github.com/RustyYato/double-buffer [INFO] tweaked toml for git repo https://github.com/RustyYato/double-buffer written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/RustyYato/double-buffer 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 git repo https://github.com/RustyYato/double-buffer 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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 48bb8cc02c3d4e9e68d19d2273d5e1be828df985c1bba284f34365da97cb7b37 [INFO] running `Command { std: "docker" "start" "-a" "48bb8cc02c3d4e9e68d19d2273d5e1be828df985c1bba284f34365da97cb7b37", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "48bb8cc02c3d4e9e68d19d2273d5e1be828df985c1bba284f34365da97cb7b37", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "48bb8cc02c3d4e9e68d19d2273d5e1be828df985c1bba284f34365da97cb7b37", kill_on_drop: false }` [INFO] [stdout] 48bb8cc02c3d4e9e68d19d2273d5e1be828df985c1bba284f34365da97cb7b37 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b75f435db31352ac974adb8645d4ec46d950633972c27f82f69ebf4e78b85c7f [INFO] running `Command { std: "docker" "start" "-a" "b75f435db31352ac974adb8645d4ec46d950633972c27f82f69ebf4e78b85c7f", kill_on_drop: false }` [INFO] [stderr] Compiling const_fn v0.4.10 [INFO] [stderr] Checking rc-box v1.2.0 [INFO] [stderr] Checking triomphe v0.1.11 [INFO] [stderr] Checking split-arc v0.1.0 (/opt/rustwide/workdir/split-arc) [INFO] [stderr] Checking hashbrown v0.15.2 [INFO] [stderr] Compiling quote v1.0.36 [INFO] [stderr] Compiling syn v2.0.63 [INFO] [stderr] Checking dbuf v0.1.0 (/opt/rustwide/workdir/dbuf) [INFO] [stdout] warning: function `test_send_sync` is never used [INFO] [stdout] --> dbuf/src/raw.rs:49:14 [INFO] [stdout] | [INFO] [stdout] 49 | const fn test_send_sync() { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result<&DoubleBufferData, Infallible> [INFO] [stdout] --> dbuf/src/ext.rs:72:81 [INFO] [stdout] | [INFO] [stdout] 72 | fn try_writer(&self) -> Result, Self::UpgradeError> { [INFO] [stdout] | _________________________________________________________________________________^ [INFO] [stdout] 73 | | Ok(self) [INFO] [stdout] 74 | | } [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<&DoubleBufferData, Infallible> [INFO] [stdout] --> dbuf/src/ext.rs:73:9 [INFO] [stdout] | [INFO] [stdout] 73 | Ok(self) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result<&OffsetArc>, Infallible> [INFO] [stdout] --> dbuf/src/ext/triomphe.rs:67:81 [INFO] [stdout] | [INFO] [stdout] 67 | fn try_writer(&self) -> Result, Self::UpgradeError> { [INFO] [stdout] | _________________________________________________________________________________^ [INFO] [stdout] 68 | | Ok(self) [INFO] [stdout] 69 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result<&OffsetArc>, Infallible> [INFO] [stdout] --> dbuf/src/ext/triomphe.rs:68:9 [INFO] [stdout] | [INFO] [stdout] 68 | Ok(self) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> dbuf/src/strategy/flashmap.rs:209:46 [INFO] [stdout] | [INFO] [stdout] 209 | ) -> Result { [INFO] [stdout] | ______________________________________________^ [INFO] [stdout] 210 | | let mut readers = self.readers.lock().unwrap_or_else(PoisonError::into_inner); [INFO] [stdout] ... | [INFO] [stdout] 240 | | Ok(Swap) [INFO] [stdout] 241 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> dbuf/src/strategy/flashmap.rs:240:9 [INFO] [stdout] | [INFO] [stdout] 240 | Ok(Swap) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> dbuf/src/strategy/evmap.rs:126:46 [INFO] [stdout] | [INFO] [stdout] 126 | ) -> Result { [INFO] [stdout] | ______________________________________________^ [INFO] [stdout] 127 | | self.is_swapped.fetch_xor(true, Ordering::AcqRel); [INFO] [stdout] 128 | | [INFO] [stdout] 129 | | let mut epochs = self.epochs.lock().unwrap_or_else(PoisonError::into_inner); [INFO] [stdout] ... | [INFO] [stdout] 140 | | Ok(Swap { start: 0 }) [INFO] [stdout] 141 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> dbuf/src/strategy/evmap.rs:140:9 [INFO] [stdout] | [INFO] [stdout] 140 | Ok(Swap { start: 0 }) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, (reader::ReaderGuard<'_, T, P>, Infallible)> [INFO] [stdout] --> dbuf/src/raw/reader.rs:156:15 [INFO] [stdout] | [INFO] [stdout] 156 | match self.try_map::<_, core::convert::Infallible>(move |t| Ok(f(t))) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result<&U, Infallible> [INFO] [stdout] --> dbuf/src/raw/reader.rs:156:69 [INFO] [stdout] | [INFO] [stdout] 156 | match self.try_map::<_, core::convert::Infallible>(move |t| Ok(f(t))) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, (reader::ReaderGuard<'_, T, P>, Infallible)> [INFO] [stdout] --> dbuf/src/raw/reader.rs:183:15 [INFO] [stdout] | [INFO] [stdout] 183 | match self.try_map_with_extras::<_, core::convert::Infallible>(move |t, e| Ok(f(t, e))) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result<&U, Infallible> [INFO] [stdout] --> dbuf/src/raw/reader.rs:183:84 [INFO] [stdout] | [INFO] [stdout] 183 | match self.try_map_with_extras::<_, core::convert::Infallible>(move |t, e| Ok(f(t, e))) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> dbuf/src/raw/writer.rs:64:18 [INFO] [stdout] | [INFO] [stdout] 64 | pub fn split(&self) -> Split { [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] 64 | pub fn split(&self) -> Split<'_, P::Buffer, P::Extras> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> dbuf/src/raw/writer.rs:86:22 [INFO] [stdout] | [INFO] [stdout] 86 | pub fn split_mut(&mut self) -> SplitMut { [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] 86 | pub fn split_mut(&mut self) -> SplitMut<'_, P::Buffer, P::Extras> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `dbuf` (lib) due to 12 previous errors; 3 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "b75f435db31352ac974adb8645d4ec46d950633972c27f82f69ebf4e78b85c7f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b75f435db31352ac974adb8645d4ec46d950633972c27f82f69ebf4e78b85c7f", kill_on_drop: false }` [INFO] [stdout] b75f435db31352ac974adb8645d4ec46d950633972c27f82f69ebf4e78b85c7f