[INFO] fetching crate median 0.3.2... [INFO] checking median-0.3.2 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1 [INFO] extracting crate median 0.3.2 into /workspace/builds/worker-6-tc1/source [INFO] started tweaking crates.io crate median 0.3.2 [INFO] finished tweaking crates.io crate median 0.3.2 [INFO] tweaked toml for crates.io crate median 0.3.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate median 0.3.2 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 18 packages to latest compatible versions [INFO] [stderr] Adding arraydeque v0.4.5 (available: v0.5.1) [INFO] [stderr] Adding generic-array v0.14.7 (available: v1.2.0) [INFO] [stderr] Adding missing_mpl v0.1.2 (available: v0.2.0) [INFO] [stderr] Adding noisy_float v0.1.15 (available: v0.2.0) [INFO] [stderr] Adding rand v0.4.6 (available: v0.9.2) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded missing_mpl v0.1.2 [INFO] [stderr] Downloaded noisy_float v0.1.15 [INFO] [stderr] Downloaded arraydeque v0.4.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8f001ce8f6e6d7cbcce82c4d6428a762e5e8faf30b494b49b7a65a5856ec0698 [INFO] running `Command { std: "docker" "start" "-a" "8f001ce8f6e6d7cbcce82c4d6428a762e5e8faf30b494b49b7a65a5856ec0698", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8f001ce8f6e6d7cbcce82c4d6428a762e5e8faf30b494b49b7a65a5856ec0698", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8f001ce8f6e6d7cbcce82c4d6428a762e5e8faf30b494b49b7a65a5856ec0698", kill_on_drop: false }` [INFO] [stdout] 8f001ce8f6e6d7cbcce82c4d6428a762e5e8faf30b494b49b7a65a5856ec0698 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7711f1d1d338d630d3075ab78618683a0f52de05a6268ec8205d7e660cc8779c [INFO] running `Command { std: "docker" "start" "-a" "7711f1d1d338d630d3075ab78618683a0f52de05a6268ec8205d7e660cc8779c", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Compiling typenum v1.18.0 [INFO] [stderr] Compiling version_check v0.9.5 [INFO] [stderr] Compiling autocfg v1.5.0 [INFO] [stderr] Compiling libc v0.2.175 [INFO] [stderr] Compiling arraydeque v0.4.5 [INFO] [stderr] Compiling generic-array v0.14.7 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking noisy_float v0.1.15 [INFO] [stderr] Checking median v0.3.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition value: `flame_it` [INFO] [stdout] --> benches/main.rs:44:16 [INFO] [stdout] | [INFO] [stdout] 44 | #[cfg_attr(feature = "flame_it", flame)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `default`, `missing_mpl`, `nightly`, and `std` [INFO] [stdout] = help: consider adding `flame_it` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `flame_it` [INFO] [stdout] --> benches/main.rs:57:16 [INFO] [stdout] | [INFO] [stdout] 57 | #[cfg_attr(feature = "flame_it", flame)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `default`, `missing_mpl`, `nightly`, and `std` [INFO] [stdout] = help: consider adding `flame_it` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> benches/main.rs:37:13 [INFO] [stdout] | [INFO] [stdout] 37 | let mut aux_buffer = mem::MaybeUninit::::uninit(); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0133]: call to unsafe function `MaybeUninit::::assume_init` is unsafe and requires unsafe function or block [INFO] [stdout] --> benches/main.rs:49:30 [INFO] [stdout] | [INFO] [stdout] 49 | let slice = &mut self.aux_buffer.assume_init().as_mut_slice()[0..size]; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function [INFO] [stdout] | [INFO] [stdout] = note: consult the function's documentation for information on how to avoid undefined behavior [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0507]: cannot move out of `self.aux_buffer` which is behind a mutable reference [INFO] [stdout] --> benches/main.rs:49:30 [INFO] [stdout] | [INFO] [stdout] 49 | let slice = &mut self.aux_buffer.assume_init().as_mut_slice()[0..size]; [INFO] [stdout] | ^^^^^^^^^^^^^^^ ------------- `self.aux_buffer` moved due to this method call [INFO] [stdout] | | [INFO] [stdout] | move occurs because `self.aux_buffer` has type `MaybeUninit`, which does not implement the `Copy` trait [INFO] [stdout] | [INFO] [stdout] note: `MaybeUninit::::assume_init` takes ownership of the receiver `self`, which moves `self.aux_buffer` [INFO] [stdout] --> /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/mem/maybe_uninit.rs:614:37 [INFO] [stdout] help: you could `clone` the value and consume it, if the `A: Copy` trait bound could be satisfied [INFO] [stdout] | [INFO] [stdout] 49 | let slice = &mut as Clone>::clone(&self.aux_buffer).assume_init().as_mut_slice()[0..size]; [INFO] [stdout] | ++++++++++++++++++++++++++++++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0716]: temporary value dropped while borrowed [INFO] [stdout] --> benches/main.rs:49:30 [INFO] [stdout] | [INFO] [stdout] 49 | let slice = &mut self.aux_buffer.assume_init().as_mut_slice()[0..size]; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - temporary value is freed at the end of this statement [INFO] [stdout] | | [INFO] [stdout] | creates a temporary value which is freed while still in use [INFO] [stdout] 50 | for (index, item) in self.buffer.iter().enumerate() { [INFO] [stdout] 51 | slice[index] = item.clone(); [INFO] [stdout] | ------------ borrow later used here [INFO] [stdout] | [INFO] [stdout] = note: consider using a `let` binding to create a longer lived value [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0133]: call to unsafe function `MaybeUninit::::assume_init` is unsafe and requires unsafe function or block [INFO] [stdout] --> benches/main.rs:79:26 [INFO] [stdout] | [INFO] [stdout] 79 | let slice = &mut self.aux_buffer.assume_init().as_mut_slice()[0..size]; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function [INFO] [stdout] | [INFO] [stdout] = note: consult the function's documentation for information on how to avoid undefined behavior [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0507]: cannot move out of `self.aux_buffer` which is behind a mutable reference [INFO] [stdout] --> benches/main.rs:79:26 [INFO] [stdout] | [INFO] [stdout] 79 | let slice = &mut self.aux_buffer.assume_init().as_mut_slice()[0..size]; [INFO] [stdout] | ^^^^^^^^^^^^^^^ ------------- `self.aux_buffer` moved due to this method call [INFO] [stdout] | | [INFO] [stdout] | move occurs because `self.aux_buffer` has type `MaybeUninit`, which does not implement the `Copy` trait [INFO] [stdout] | [INFO] [stdout] note: `MaybeUninit::::assume_init` takes ownership of the receiver `self`, which moves `self.aux_buffer` [INFO] [stdout] --> /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/mem/maybe_uninit.rs:614:37 [INFO] [stdout] help: you could `clone` the value and consume it, if the `A: Copy` trait bound could be satisfied [INFO] [stdout] | [INFO] [stdout] 79 | let slice = &mut as Clone>::clone(&self.aux_buffer).assume_init().as_mut_slice()[0..size]; [INFO] [stdout] | ++++++++++++++++++++++++++++++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing temporary value [INFO] [stdout] --> benches/main.rs:81:13 [INFO] [stdout] | [INFO] [stdout] 79 | let slice = &mut self.aux_buffer.assume_init().as_mut_slice()[0..size]; [INFO] [stdout] | ----------------------------- temporary value created here [INFO] [stdout] 80 | if low == high { [INFO] [stdout] 81 | &slice[low] [INFO] [stdout] | ^^^^^^^^^^^ returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0133, E0507, E0515, E0716. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0133`. [INFO] [stdout] [INFO] [stderr] error: could not compile `median` (bench "main") due to 6 previous errors; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "7711f1d1d338d630d3075ab78618683a0f52de05a6268ec8205d7e660cc8779c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7711f1d1d338d630d3075ab78618683a0f52de05a6268ec8205d7e660cc8779c", kill_on_drop: false }` [INFO] [stdout] 7711f1d1d338d630d3075ab78618683a0f52de05a6268ec8205d7e660cc8779c