[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] testing fitzgen/mesi-emu against 1.76.0 for beta-1.77-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffitzgen%2Fmesi-emu" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fitzgen/mesi-emu on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "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-7-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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.8
[INFO] [stderr]   Downloaded kernel32-sys v0.2.1
[INFO] [stderr]   Downloaded lru_time_cache v0.2.7
[INFO] [stderr]   Downloaded num v0.1.31
[INFO] [stderr]   Downloaded bit-vec v0.4.3
[INFO] [stderr]   Downloaded winapi v0.2.5
[INFO] [stderr]   Downloaded time v0.1.34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2bd391d0248de20a5442ae9469772dee7d8cce7246ac8c73dfe6115c4ed32c42
[INFO] running `Command { std: "docker" "start" "-a" "2bd391d0248de20a5442ae9469772dee7d8cce7246ac8c73dfe6115c4ed32c42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bd391d0248de20a5442ae9469772dee7d8cce7246ac8c73dfe6115c4ed32c42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bd391d0248de20a5442ae9469772dee7d8cce7246ac8c73dfe6115c4ed32c42", kill_on_drop: false }`
[INFO] [stdout] 2bd391d0248de20a5442ae9469772dee7d8cce7246ac8c73dfe6115c4ed32c42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 218cf011bcec5f3347e6d6dd16e8e0824eb0e3521b5fcf567482f669d0d52ea6
[INFO] running `Command { std: "docker" "start" "-a" "218cf011bcec5f3347e6d6dd16e8e0824eb0e3521b5fcf567482f669d0d52ea6", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.5
[INFO] [stderr]    Compiling libc v0.2.8
[INFO] [stderr]    Compiling num v0.1.31
[INFO] [stderr]    Compiling bit-vec v0.4.3
[INFO] [stderr]    Compiling kernel32-sys v0.2.1
[INFO] [stderr]    Compiling rand v0.3.14
[INFO] [stderr]    Compiling time v0.1.34
[INFO] [stderr]    Compiling lru_time_cache v0.2.7
[INFO] [stderr]    Compiling chrono v0.2.21
[INFO] [stdout] error: to use a constant of type `format::ParseError` in a pattern, `format::ParseError` must be annotated with `#[derive(PartialEq, Eq)]`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/chrono-0.2.21/src/format/parsed.rs:476:22
[INFO] [stdout]     |
[INFO] [stdout] 476 |                 (Err(OUT_OF_RANGE), _) | (_, Err(OUT_OF_RANGE)) => return Err(OUT_OF_RANGE),
[INFO] [stdout]     |                      ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the traits must be derived, manual `impl`s are not sufficient
[INFO] [stdout]     = note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralEq.html for details
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: to use a constant of type `format::ParseError` in a pattern, `format::ParseError` must be annotated with `#[derive(PartialEq, Eq)]`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/chrono-0.2.21/src/format/parsed.rs:476:50
[INFO] [stdout]     |
[INFO] [stdout] 476 |                 (Err(OUT_OF_RANGE), _) | (_, Err(OUT_OF_RANGE)) => return Err(OUT_OF_RANGE),
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the traits must be derived, manual `impl`s are not sufficient
[INFO] [stdout]     = note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralEq.html for details
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: to use a constant of type `format::ParseError` in a pattern, `format::ParseError` must be annotated with `#[derive(PartialEq, Eq)]`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/chrono-0.2.21/src/format/parsed.rs:477:22
[INFO] [stdout]     |
[INFO] [stdout] 477 |                 (Err(IMPOSSIBLE), _) | (_, Err(IMPOSSIBLE)) => return Err(IMPOSSIBLE),
[INFO] [stdout]     |                      ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the traits must be derived, manual `impl`s are not sufficient
[INFO] [stdout]     = note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralEq.html for details
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: to use a constant of type `format::ParseError` in a pattern, `format::ParseError` must be annotated with `#[derive(PartialEq, Eq)]`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/chrono-0.2.21/src/format/parsed.rs:477:48
[INFO] [stdout]     |
[INFO] [stdout] 477 |                 (Err(IMPOSSIBLE), _) | (_, Err(IMPOSSIBLE)) => return Err(IMPOSSIBLE),
[INFO] [stdout]     |                                                ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the traits must be derived, manual `impl`s are not sufficient
[INFO] [stdout]     = note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralEq.html for details
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chrono` (lib) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "218cf011bcec5f3347e6d6dd16e8e0824eb0e3521b5fcf567482f669d0d52ea6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "218cf011bcec5f3347e6d6dd16e8e0824eb0e3521b5fcf567482f669d0d52ea6", kill_on_drop: false }`
[INFO] [stdout] 218cf011bcec5f3347e6d6dd16e8e0824eb0e3521b5fcf567482f669d0d52ea6
[INFO] testing fitzgen/mesi-emu against beta-2024-02-10 for beta-1.77-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffitzgen%2Fmesi-emu" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fitzgen/mesi-emu on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "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-7-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" "+beta-2024-02-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b61ccb3ab621b8df18ed75f44b6e008dfcc529a7c56b47cad1ec64318056930
[INFO] running `Command { std: "docker" "start" "-a" "9b61ccb3ab621b8df18ed75f44b6e008dfcc529a7c56b47cad1ec64318056930", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b61ccb3ab621b8df18ed75f44b6e008dfcc529a7c56b47cad1ec64318056930", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b61ccb3ab621b8df18ed75f44b6e008dfcc529a7c56b47cad1ec64318056930", kill_on_drop: false }`
[INFO] [stdout] 9b61ccb3ab621b8df18ed75f44b6e008dfcc529a7c56b47cad1ec64318056930
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 717dd9b040093d407d440fee878a245191940fd6ab93412cf0b457a24a51547a
[INFO] running `Command { std: "docker" "start" "-a" "717dd9b040093d407d440fee878a245191940fd6ab93412cf0b457a24a51547a", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling libc v0.2.8
[INFO] [stderr]    Compiling winapi v0.2.5
[INFO] [stderr]    Compiling num v0.1.31
[INFO] [stderr]    Compiling bit-vec v0.4.3
[INFO] [stderr]    Compiling kernel32-sys v0.2.1
[INFO] [stderr]    Compiling rand v0.3.14
[INFO] [stderr]    Compiling time v0.1.34
[INFO] [stderr]    Compiling chrono v0.2.21
[INFO] [stderr]    Compiling lru_time_cache v0.2.7
[INFO] [stderr]    Compiling 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: 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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.96s
[INFO] running `Command { std: "docker" "inspect" "717dd9b040093d407d440fee878a245191940fd6ab93412cf0b457a24a51547a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "717dd9b040093d407d440fee878a245191940fd6ab93412cf0b457a24a51547a", kill_on_drop: false }`
[INFO] [stdout] 717dd9b040093d407d440fee878a245191940fd6ab93412cf0b457a24a51547a
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 924d12b651aa929c2e01a1d2ceb0376ad93bff5b7e79deec7a40052a84eff286
[INFO] running `Command { std: "docker" "start" "-a" "924d12b651aa929c2e01a1d2ceb0376ad93bff5b7e79deec7a40052a84eff286", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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: 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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "924d12b651aa929c2e01a1d2ceb0376ad93bff5b7e79deec7a40052a84eff286", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "924d12b651aa929c2e01a1d2ceb0376ad93bff5b7e79deec7a40052a84eff286", kill_on_drop: false }`
[INFO] [stdout] 924d12b651aa929c2e01a1d2ceb0376ad93bff5b7e79deec7a40052a84eff286
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ebad92844e910a50c4761f444fc001508933af60689909004acd6916e93d0f75
[INFO] running `Command { std: "docker" "start" "-a" "ebad92844e910a50c4761f444fc001508933af60689909004acd6916e93d0f75", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stderr]   --> src/benchmark.rs:14:45
[INFO] [stderr]    |
[INFO] [stderr] 14 | static EPOCH: atomic::AtomicUsize = atomic::ATOMIC_USIZE_INIT;
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] help: replace the use of the deprecated constant
[INFO] [stderr]    |
[INFO] [stderr] 14 | static EPOCH: atomic::AtomicUsize = atomic::AtomicUsize::new(0);
[INFO] [stderr]    |                                             ~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/benchmark.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     mem::replace(timer, now);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let _ = mem::replace(timer, now);
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/memory_cache.rs:132:9
[INFO] [stderr]     |
[INFO] [stderr] 132 |         mem::replace(&mut self.cached_lines, LruCache::with_capacity(CACHE_SIZE));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 132 |         let _ = mem::replace(&mut self.cached_lines, LruCache::with_capacity(CACHE_SIZE));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `mesi-emu` (bin "mesi-emu" test) generated 3 warnings (run `cargo fix --bin "mesi-emu" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mesi_emu-94624f73e5e41bf8)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ebad92844e910a50c4761f444fc001508933af60689909004acd6916e93d0f75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebad92844e910a50c4761f444fc001508933af60689909004acd6916e93d0f75", kill_on_drop: false }`
[INFO] [stdout] ebad92844e910a50c4761f444fc001508933af60689909004acd6916e93d0f75
