[INFO] cloning repository https://github.com/fitzgen/mesi-emu [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fitzgen/mesi-emu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffitzgen%2Fmesi-emu", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffitzgen%2Fmesi-emu'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8a4cc0705f1609f1fe534c92479c287459b2ec2a [INFO] checking fitzgen/mesi-emu against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffitzgen%2Fmesi-emu" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/fitzgen/mesi-emu on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/fitzgen/mesi-emu [INFO] finished tweaking git repo https://github.com/fitzgen/mesi-emu [INFO] tweaked toml for git repo https://github.com/fitzgen/mesi-emu written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/fitzgen/mesi-emu 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded lru_time_cache v0.2.7 [INFO] [stderr] Downloaded libc v0.2.8 [INFO] [stderr] Downloaded kernel32-sys v0.2.1 [INFO] [stderr] Downloaded bit-vec v0.4.3 [INFO] [stderr] Downloaded chrono v0.2.21 [INFO] [stderr] Downloaded time v0.1.34 [INFO] [stderr] Downloaded rand v0.3.14 [INFO] [stderr] Downloaded winapi v0.2.5 [INFO] [stderr] Downloaded num v0.1.31 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0daa4d2548dfc3cbfc03441cfda2009f148d52f79e5dea50fef6f2b5f72d9293 [INFO] running `Command { std: "docker" "start" "-a" "0daa4d2548dfc3cbfc03441cfda2009f148d52f79e5dea50fef6f2b5f72d9293", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0daa4d2548dfc3cbfc03441cfda2009f148d52f79e5dea50fef6f2b5f72d9293", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0daa4d2548dfc3cbfc03441cfda2009f148d52f79e5dea50fef6f2b5f72d9293", kill_on_drop: false }` [INFO] [stdout] 0daa4d2548dfc3cbfc03441cfda2009f148d52f79e5dea50fef6f2b5f72d9293 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ab062cb7529b070d49dde34f81f6ee529649d9481d66587f3bd25ca065cb8730 [INFO] running `Command { std: "docker" "start" "-a" "ab062cb7529b070d49dde34f81f6ee529649d9481d66587f3bd25ca065cb8730", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Checking libc v0.2.8 [INFO] [stderr] Checking winapi v0.2.5 [INFO] [stderr] Checking num v0.1.31 [INFO] [stderr] Checking bit-vec v0.4.3 [INFO] [stderr] Compiling kernel32-sys v0.2.1 [INFO] [stderr] Checking rand v0.3.14 [INFO] [stderr] Checking time v0.1.34 [INFO] [stderr] Checking chrono v0.2.21 [INFO] [stderr] Checking lru_time_cache v0.2.7 [INFO] [stderr] Checking mesi-emu v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred [INFO] [stdout] --> src/benchmark.rs:14:45 [INFO] [stdout] | [INFO] [stdout] 14 | static EPOCH: atomic::AtomicUsize = atomic::ATOMIC_USIZE_INIT; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] help: replace the use of the deprecated constant [INFO] [stdout] | [INFO] [stdout] 14 | static EPOCH: atomic::AtomicUsize = atomic::AtomicUsize::new(0); [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred [INFO] [stdout] --> src/benchmark.rs:14:45 [INFO] [stdout] | [INFO] [stdout] 14 | static EPOCH: atomic::AtomicUsize = atomic::ATOMIC_USIZE_INIT; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] help: replace the use of the deprecated constant [INFO] [stdout] | [INFO] [stdout] 14 | static EPOCH: atomic::AtomicUsize = atomic::AtomicUsize::new(0); [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/benchmark.rs:49:5 [INFO] [stdout] | [INFO] [stdout] 49 | mem::replace(timer, now); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 49 | let _ = mem::replace(timer, now); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/memory_cache.rs:132:9 [INFO] [stdout] | [INFO] [stdout] 132 | mem::replace(&mut self.cached_lines, LruCache::with_capacity(CACHE_SIZE)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 132 | let _ = mem::replace(&mut self.cached_lines, LruCache::with_capacity(CACHE_SIZE)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/benchmark.rs:49:5 [INFO] [stdout] | [INFO] [stdout] 49 | mem::replace(timer, now); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 49 | let _ = mem::replace(timer, now); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/memory_cache.rs:132:9 [INFO] [stdout] | [INFO] [stdout] 132 | mem::replace(&mut self.cached_lines, LruCache::with_capacity(CACHE_SIZE)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 132 | let _ = mem::replace(&mut self.cached_lines, LruCache::with_capacity(CACHE_SIZE)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.94s [INFO] running `Command { std: "docker" "inspect" "ab062cb7529b070d49dde34f81f6ee529649d9481d66587f3bd25ca065cb8730", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ab062cb7529b070d49dde34f81f6ee529649d9481d66587f3bd25ca065cb8730", kill_on_drop: false }` [INFO] [stdout] ab062cb7529b070d49dde34f81f6ee529649d9481d66587f3bd25ca065cb8730 [INFO] checking fitzgen/mesi-emu against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffitzgen%2Fmesi-emu" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/fitzgen/mesi-emu on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/fitzgen/mesi-emu [INFO] finished tweaking git repo https://github.com/fitzgen/mesi-emu [INFO] tweaked toml for git repo https://github.com/fitzgen/mesi-emu written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/fitzgen/mesi-emu 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] feabaf3f292022d1f33f7d621ef609d47633234f965fba1e58afe3298f260c69 [INFO] running `Command { std: "docker" "start" "-a" "feabaf3f292022d1f33f7d621ef609d47633234f965fba1e58afe3298f260c69", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "feabaf3f292022d1f33f7d621ef609d47633234f965fba1e58afe3298f260c69", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "feabaf3f292022d1f33f7d621ef609d47633234f965fba1e58afe3298f260c69", kill_on_drop: false }` [INFO] [stdout] feabaf3f292022d1f33f7d621ef609d47633234f965fba1e58afe3298f260c69 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8e108a054e00c6d66e5f844c26fda72a9af7f8ea0a030bbd143fc8410ef2d7db [INFO] running `Command { std: "docker" "start" "-a" "8e108a054e00c6d66e5f844c26fda72a9af7f8ea0a030bbd143fc8410ef2d7db", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Checking winapi v0.2.5 [INFO] [stderr] Checking libc v0.2.8 [INFO] [stderr] Checking num v0.1.31 [INFO] [stderr] Checking bit-vec v0.4.3 [INFO] [stderr] Compiling kernel32-sys v0.2.1 [INFO] [stderr] Checking rand v0.3.14 [INFO] [stderr] Checking time v0.1.34 [INFO] [stderr] Checking lru_time_cache v0.2.7 [INFO] [stderr] Checking chrono v0.2.21 [INFO] [stderr] Checking mesi-emu v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred [INFO] [stdout] --> src/benchmark.rs:14:45 [INFO] [stdout] | [INFO] [stdout] 14 | static EPOCH: atomic::AtomicUsize = atomic::ATOMIC_USIZE_INIT; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] help: replace the use of the deprecated constant [INFO] [stdout] | [INFO] [stdout] 14 | static EPOCH: atomic::AtomicUsize = atomic::AtomicUsize::new(0); [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred [INFO] [stdout] --> src/benchmark.rs:14:45 [INFO] [stdout] | [INFO] [stdout] 14 | static EPOCH: atomic::AtomicUsize = atomic::ATOMIC_USIZE_INIT; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] help: replace the use of the deprecated constant [INFO] [stdout] | [INFO] [stdout] 14 | static EPOCH: atomic::AtomicUsize = atomic::AtomicUsize::new(0); [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/benchmark.rs:49:5 [INFO] [stdout] | [INFO] [stdout] 49 | mem::replace(timer, now); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 49 | let _ = mem::replace(timer, now); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/memory_cache.rs:132:9 [INFO] [stdout] | [INFO] [stdout] 132 | mem::replace(&mut self.cached_lines, LruCache::with_capacity(CACHE_SIZE)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 132 | let _ = mem::replace(&mut self.cached_lines, LruCache::with_capacity(CACHE_SIZE)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/benchmark.rs:49:5 [INFO] [stdout] | [INFO] [stdout] 49 | mem::replace(timer, now); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 49 | let _ = mem::replace(timer, now); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/memory_cache.rs:132:9 [INFO] [stdout] | [INFO] [stdout] 132 | mem::replace(&mut self.cached_lines, LruCache::with_capacity(CACHE_SIZE)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 132 | let _ = mem::replace(&mut self.cached_lines, LruCache::with_capacity(CACHE_SIZE)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.88s [INFO] running `Command { std: "docker" "inspect" "8e108a054e00c6d66e5f844c26fda72a9af7f8ea0a030bbd143fc8410ef2d7db", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8e108a054e00c6d66e5f844c26fda72a9af7f8ea0a030bbd143fc8410ef2d7db", kill_on_drop: false }` [INFO] [stdout] 8e108a054e00c6d66e5f844c26fda72a9af7f8ea0a030bbd143fc8410ef2d7db