[INFO] cloning repository https://github.com/perlindgren/fastmem [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/perlindgren/fastmem" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperlindgren%2Ffastmem", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperlindgren%2Ffastmem'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c578c9d796cfb294fad05f2ed02aedd64ee1ad44 [INFO] checking perlindgren/fastmem against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperlindgren%2Ffastmem" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/perlindgren/fastmem on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/perlindgren/fastmem [INFO] finished tweaking git repo https://github.com/perlindgren/fastmem [INFO] tweaked toml for git repo https://github.com/perlindgren/fastmem written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/perlindgren/fastmem 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 784286e5ca04fd889a171067fb48902766ecb8c64a41550cfb5a528672cbd79d [INFO] running `Command { std: "docker" "start" "-a" "784286e5ca04fd889a171067fb48902766ecb8c64a41550cfb5a528672cbd79d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "784286e5ca04fd889a171067fb48902766ecb8c64a41550cfb5a528672cbd79d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "784286e5ca04fd889a171067fb48902766ecb8c64a41550cfb5a528672cbd79d", kill_on_drop: false }` [INFO] [stdout] 784286e5ca04fd889a171067fb48902766ecb8c64a41550cfb5a528672cbd79d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d0d022db10159a50e0575ffd6b10106d75339a20e8228d66b514d94d51256718 [INFO] running `Command { std: "docker" "start" "-a" "d0d022db10159a50e0575ffd6b10106d75339a20e8228d66b514d94d51256718", kill_on_drop: false }` [INFO] [stderr] Checking fastmem v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `core::mem::size_of_val` [INFO] [stdout] --> src/lib.rs:86:9 [INFO] [stdout] | [INFO] [stdout] 86 | use core::mem::size_of_val; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `RacyCell` is never constructed [INFO] [stdout] --> src/heap.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct RacyCell(UnsafeCell); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `get_mut`, and `get` are never used [INFO] [stdout] --> src/heap.rs:10:18 [INFO] [stdout] | [INFO] [stdout] 8 | impl RacyCell { [INFO] [stdout] | ------------------- associated items in this implementation [INFO] [stdout] 9 | #[inline(always)] [INFO] [stdout] 10 | pub const fn new(value: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 14 | pub unsafe fn get_mut(&self) -> *mut T { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 19 | pub unsafe fn get(&self) -> *const T { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `get_mut` and `get` are never used [INFO] [stdout] --> src/heap.rs:14:19 [INFO] [stdout] | [INFO] [stdout] 8 | impl RacyCell { [INFO] [stdout] | ------------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 14 | pub unsafe fn get_mut(&self) -> *mut T { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 19 | pub unsafe fn get(&self) -> *const T { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s [INFO] running `Command { std: "docker" "inspect" "d0d022db10159a50e0575ffd6b10106d75339a20e8228d66b514d94d51256718", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d0d022db10159a50e0575ffd6b10106d75339a20e8228d66b514d94d51256718", kill_on_drop: false }` [INFO] [stdout] d0d022db10159a50e0575ffd6b10106d75339a20e8228d66b514d94d51256718 [INFO] checking perlindgren/fastmem against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperlindgren%2Ffastmem" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/perlindgren/fastmem on toolchain f9935d29d867449445ee008640ccca1bf1ae0889 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/perlindgren/fastmem [INFO] finished tweaking git repo https://github.com/perlindgren/fastmem [INFO] tweaked toml for git repo https://github.com/perlindgren/fastmem written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/perlindgren/fastmem 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ffdb094a388531992fec5c4797115c28dc00d818e59c9649ca997ad14cd8b049 [INFO] running `Command { std: "docker" "start" "-a" "ffdb094a388531992fec5c4797115c28dc00d818e59c9649ca997ad14cd8b049", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ffdb094a388531992fec5c4797115c28dc00d818e59c9649ca997ad14cd8b049", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ffdb094a388531992fec5c4797115c28dc00d818e59c9649ca997ad14cd8b049", kill_on_drop: false }` [INFO] [stdout] ffdb094a388531992fec5c4797115c28dc00d818e59c9649ca997ad14cd8b049 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dtail_expr_drop_order" "-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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 512648d4f6328ba7a4e56b68c2205f172ccbb280bf94ac8cd47c19011d8a565a [INFO] running `Command { std: "docker" "start" "-a" "512648d4f6328ba7a4e56b68c2205f172ccbb280bf94ac8cd47c19011d8a565a", kill_on_drop: false }` [INFO] [stderr] Checking fastmem v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `core::mem::size_of_val` [INFO] [stdout] --> src/lib.rs:86:9 [INFO] [stdout] | [INFO] [stdout] 86 | use core::mem::size_of_val; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `RacyCell` is never constructed [INFO] [stdout] --> src/heap.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct RacyCell(UnsafeCell); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `get_mut`, and `get` are never used [INFO] [stdout] --> src/heap.rs:10:18 [INFO] [stdout] | [INFO] [stdout] 8 | impl RacyCell { [INFO] [stdout] | ------------------- associated items in this implementation [INFO] [stdout] 9 | #[inline(always)] [INFO] [stdout] 10 | pub const fn new(value: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 14 | pub unsafe fn get_mut(&self) -> *mut T { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 19 | pub unsafe fn get(&self) -> *const T { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/heap.rs:11:18 [INFO] [stdout] | [INFO] [stdout] 10 | pub const fn new(value: T) -> Self { [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 11 | RacyCell(UnsafeCell::new(value)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `fastmem` (lib) due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: methods `get_mut` and `get` are never used [INFO] [stdout] --> src/heap.rs:14:19 [INFO] [stdout] | [INFO] [stdout] 8 | impl RacyCell { [INFO] [stdout] | ------------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 14 | pub unsafe fn get_mut(&self) -> *mut T { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 19 | pub unsafe fn get(&self) -> *const T { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/heap.rs:11:18 [INFO] [stdout] | [INFO] [stdout] 10 | pub const fn new(value: T) -> Self { [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 11 | RacyCell(UnsafeCell::new(value)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `fastmem` (lib test) due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "512648d4f6328ba7a4e56b68c2205f172ccbb280bf94ac8cd47c19011d8a565a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "512648d4f6328ba7a4e56b68c2205f172ccbb280bf94ac8cd47c19011d8a565a", kill_on_drop: false }` [INFO] [stdout] 512648d4f6328ba7a4e56b68c2205f172ccbb280bf94ac8cd47c19011d8a565a