[INFO] fetching crate biheap 0.5.1... [INFO] testing biheap-0.5.1 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1 [INFO] extracting crate biheap 0.5.1 into /workspace/builds/worker-5-tc2/source [INFO] started tweaking crates.io crate biheap 0.5.1 [INFO] finished tweaking crates.io crate biheap 0.5.1 [INFO] tweaked toml for crates.io crate biheap 0.5.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate biheap 0.5.1 on toolchain b83b707f97d809763b7861afa7638871f3339a33 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fbe9f8784bd74bb51cf047dc8d3c461c985dfcf9676df35a9779350001ed62f0 [INFO] running `Command { std: "docker" "start" "-a" "fbe9f8784bd74bb51cf047dc8d3c461c985dfcf9676df35a9779350001ed62f0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fbe9f8784bd74bb51cf047dc8d3c461c985dfcf9676df35a9779350001ed62f0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fbe9f8784bd74bb51cf047dc8d3c461c985dfcf9676df35a9779350001ed62f0", kill_on_drop: false }` [INFO] [stdout] fbe9f8784bd74bb51cf047dc8d3c461c985dfcf9676df35a9779350001ed62f0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9e9164cd61edc5dc888ed8d73b63821510e66813bcfde1c3116cc00507258703 [INFO] running `Command { std: "docker" "start" "-a" "9e9164cd61edc5dc888ed8d73b63821510e66813bcfde1c3116cc00507258703", kill_on_drop: false }` [INFO] [stderr] Compiling biheap v0.5.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/core/bubble.rs:124:17 [INFO] [stdout] | [INFO] [stdout] 124 | let mut this = unsafe { &mut *this.get() }; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/core/bubble.rs:125:17 [INFO] [stdout] | [INFO] [stdout] 125 | let mut cell = unsafe { &mut *cell_ref.get() }; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/core/push.rs:25:9 [INFO] [stdout] | [INFO] [stdout] 25 | drop(borrow); [INFO] [stdout] | ^^^^^------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut bivec::BiVec>>>` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 25 - drop(borrow); [INFO] [stdout] 25 + let _ = borrow; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/core/bubble.rs:89:25 [INFO] [stdout] | [INFO] [stdout] 89 | drop(left_ref); [INFO] [stdout] | ^^^^^--------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut core::Node` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 89 - drop(left_ref); [INFO] [stdout] 89 + let _ = left_ref; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/core/bubble.rs:93:25 [INFO] [stdout] | [INFO] [stdout] 93 | drop(right_ref); [INFO] [stdout] | ^^^^^---------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut core::Node` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 93 - drop(right_ref); [INFO] [stdout] 93 + let _ = right_ref; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/core/bubble.rs:99:25 [INFO] [stdout] | [INFO] [stdout] 99 | drop(left_ref); [INFO] [stdout] | ^^^^^--------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut core::Node` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 99 - drop(left_ref); [INFO] [stdout] 99 + let _ = left_ref; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/core/bubble.rs:103:25 [INFO] [stdout] | [INFO] [stdout] 103 | drop(right_ref); [INFO] [stdout] | ^^^^^---------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut core::Node` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 103 - drop(right_ref); [INFO] [stdout] 103 + let _ = right_ref; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/core/peek.rs:117:9 [INFO] [stdout] | [INFO] [stdout] 117 | drop(bivec); [INFO] [stdout] | ^^^^^-----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut bivec::BiVec>>>` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 117 - drop(bivec); [INFO] [stdout] 117 + let _ = bivec; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/core/iter.rs:36:17 [INFO] [stdout] | [INFO] [stdout] 36 | pub fn iter(&self) -> RefIter { [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] 36 | pub fn iter(&self) -> RefIter<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s [INFO] running `Command { std: "docker" "inspect" "9e9164cd61edc5dc888ed8d73b63821510e66813bcfde1c3116cc00507258703", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9e9164cd61edc5dc888ed8d73b63821510e66813bcfde1c3116cc00507258703", kill_on_drop: false }` [INFO] [stdout] 9e9164cd61edc5dc888ed8d73b63821510e66813bcfde1c3116cc00507258703 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c52d4bc4830cec090ad5b02658aed0a7966e8b2db2e814c66f97b0ac9c60331a [INFO] running `Command { std: "docker" "start" "-a" "c52d4bc4830cec090ad5b02658aed0a7966e8b2db2e814c66f97b0ac9c60331a", kill_on_drop: false }` [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/core/bubble.rs:124:17 [INFO] [stdout] | [INFO] [stdout] 124 | let mut this = unsafe { &mut *this.get() }; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/core/bubble.rs:125:17 [INFO] [stdout] | [INFO] [stdout] 125 | let mut cell = unsafe { &mut *cell_ref.get() }; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling biheap v0.5.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/core/push.rs:25:9 [INFO] [stdout] | [INFO] [stdout] 25 | drop(borrow); [INFO] [stdout] | ^^^^^------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut bivec::BiVec>>>` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 25 - drop(borrow); [INFO] [stdout] 25 + let _ = borrow; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/core/bubble.rs:89:25 [INFO] [stdout] | [INFO] [stdout] 89 | drop(left_ref); [INFO] [stdout] | ^^^^^--------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut core::Node` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 89 - drop(left_ref); [INFO] [stdout] 89 + let _ = left_ref; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/core/bubble.rs:93:25 [INFO] [stdout] | [INFO] [stdout] 93 | drop(right_ref); [INFO] [stdout] | ^^^^^---------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut core::Node` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 93 - drop(right_ref); [INFO] [stdout] 93 + let _ = right_ref; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/core/bubble.rs:99:25 [INFO] [stdout] | [INFO] [stdout] 99 | drop(left_ref); [INFO] [stdout] | ^^^^^--------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut core::Node` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 99 - drop(left_ref); [INFO] [stdout] 99 + let _ = left_ref; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/core/bubble.rs:103:25 [INFO] [stdout] | [INFO] [stdout] 103 | drop(right_ref); [INFO] [stdout] | ^^^^^---------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut core::Node` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 103 - drop(right_ref); [INFO] [stdout] 103 + let _ = right_ref; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/core/peek.rs:117:9 [INFO] [stdout] | [INFO] [stdout] 117 | drop(bivec); [INFO] [stdout] | ^^^^^-----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut bivec::BiVec>>>` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 117 - drop(bivec); [INFO] [stdout] 117 + let _ = bivec; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/core/iter.rs:36:17 [INFO] [stdout] | [INFO] [stdout] 36 | pub fn iter(&self) -> RefIter { [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] 36 | pub fn iter(&self) -> RefIter<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/core/bubble.rs:124:17 [INFO] [stdout] | [INFO] [stdout] 124 | let mut this = unsafe { &mut *this.get() }; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/core/bubble.rs:125:17 [INFO] [stdout] | [INFO] [stdout] 125 | let mut cell = unsafe { &mut *cell_ref.get() }; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/core/push.rs:25:9 [INFO] [stdout] | [INFO] [stdout] 25 | drop(borrow); [INFO] [stdout] | ^^^^^------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut bivec::BiVec>>>` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 25 - drop(borrow); [INFO] [stdout] 25 + let _ = borrow; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/core/bubble.rs:89:25 [INFO] [stdout] | [INFO] [stdout] 89 | drop(left_ref); [INFO] [stdout] | ^^^^^--------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut core::Node` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 89 - drop(left_ref); [INFO] [stdout] 89 + let _ = left_ref; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/core/bubble.rs:93:25 [INFO] [stdout] | [INFO] [stdout] 93 | drop(right_ref); [INFO] [stdout] | ^^^^^---------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut core::Node` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 93 - drop(right_ref); [INFO] [stdout] 93 + let _ = right_ref; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/core/bubble.rs:99:25 [INFO] [stdout] | [INFO] [stdout] 99 | drop(left_ref); [INFO] [stdout] | ^^^^^--------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut core::Node` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 99 - drop(left_ref); [INFO] [stdout] 99 + let _ = left_ref; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/core/bubble.rs:103:25 [INFO] [stdout] | [INFO] [stdout] 103 | drop(right_ref); [INFO] [stdout] | ^^^^^---------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut core::Node` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 103 - drop(right_ref); [INFO] [stdout] 103 + let _ = right_ref; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/core/peek.rs:117:9 [INFO] [stdout] | [INFO] [stdout] 117 | drop(bivec); [INFO] [stdout] | ^^^^^-----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut bivec::BiVec>>>` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 117 - drop(bivec); [INFO] [stdout] 117 + let _ = bivec; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/core/iter.rs:36:17 [INFO] [stdout] | [INFO] [stdout] 36 | pub fn iter(&self) -> RefIter { [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] 36 | pub fn iter(&self) -> RefIter<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.74s [INFO] running `Command { std: "docker" "inspect" "c52d4bc4830cec090ad5b02658aed0a7966e8b2db2e814c66f97b0ac9c60331a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c52d4bc4830cec090ad5b02658aed0a7966e8b2db2e814c66f97b0ac9c60331a", kill_on_drop: false }` [INFO] [stdout] c52d4bc4830cec090ad5b02658aed0a7966e8b2db2e814c66f97b0ac9c60331a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 55413f348d1be00f46124a1b41bc608b4c729f144b4f2afc258a31f7414420be [INFO] running `Command { std: "docker" "start" "-a" "55413f348d1be00f46124a1b41bc608b4c729f144b4f2afc258a31f7414420be", kill_on_drop: false }` [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/core/bubble.rs:124:17 [INFO] [stderr] | [INFO] [stderr] 124 | let mut this = unsafe { &mut *this.get() }; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/core/bubble.rs:125:17 [INFO] [stderr] | [INFO] [stderr] 125 | let mut cell = unsafe { &mut *cell_ref.get() }; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stderr] --> src/core/push.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 25 | drop(borrow); [INFO] [stderr] | ^^^^^------^ [INFO] [stderr] | | [INFO] [stderr] | argument has type `&mut bivec::BiVec>>>` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dropping_references)]` on by default [INFO] [stderr] help: use `let _ = ...` to ignore the expression or result [INFO] [stderr] | [INFO] [stderr] 25 - drop(borrow); [INFO] [stderr] 25 + let _ = borrow; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stderr] --> src/core/bubble.rs:89:25 [INFO] [stderr] | [INFO] [stderr] 89 | drop(left_ref); [INFO] [stderr] | ^^^^^--------^ [INFO] [stderr] | | [INFO] [stderr] | argument has type `&mut core::Node` [INFO] [stderr] | [INFO] [stderr] help: use `let _ = ...` to ignore the expression or result [INFO] [stderr] | [INFO] [stderr] 89 - drop(left_ref); [INFO] [stderr] 89 + let _ = left_ref; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stderr] --> src/core/bubble.rs:93:25 [INFO] [stderr] | [INFO] [stderr] 93 | drop(right_ref); [INFO] [stderr] | ^^^^^---------^ [INFO] [stderr] | | [INFO] [stderr] | argument has type `&mut core::Node` [INFO] [stderr] | [INFO] [stderr] help: use `let _ = ...` to ignore the expression or result [INFO] [stderr] | [INFO] [stderr] 93 - drop(right_ref); [INFO] [stderr] 93 + let _ = right_ref; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stderr] --> src/core/bubble.rs:99:25 [INFO] [stderr] | [INFO] [stderr] 99 | drop(left_ref); [INFO] [stderr] | ^^^^^--------^ [INFO] [stderr] | | [INFO] [stderr] | argument has type `&mut core::Node` [INFO] [stderr] | [INFO] [stderr] help: use `let _ = ...` to ignore the expression or result [INFO] [stderr] | [INFO] [stderr] 99 - drop(left_ref); [INFO] [stderr] 99 + let _ = left_ref; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stderr] --> src/core/bubble.rs:103:25 [INFO] [stderr] | [INFO] [stderr] 103 | drop(right_ref); [INFO] [stderr] | ^^^^^---------^ [INFO] [stderr] | | [INFO] [stderr] | argument has type `&mut core::Node` [INFO] [stderr] | [INFO] [stderr] help: use `let _ = ...` to ignore the expression or result [INFO] [stderr] | [INFO] [stderr] 103 - drop(right_ref); [INFO] [stderr] 103 + let _ = right_ref; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stderr] --> src/core/peek.rs:117:9 [INFO] [stderr] | [INFO] [stderr] 117 | drop(bivec); [INFO] [stderr] | ^^^^^-----^ [INFO] [stderr] | | [INFO] [stderr] | argument has type `&mut bivec::BiVec>>>` [INFO] [stderr] | [INFO] [stderr] help: use `let _ = ...` to ignore the expression or result [INFO] [stderr] | [INFO] [stderr] 117 - drop(bivec); [INFO] [stderr] 117 + let _ = bivec; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/core/iter.rs:36:17 [INFO] [stderr] | [INFO] [stderr] 36 | pub fn iter(&self) -> RefIter { [INFO] [stderr] | ^^^^^ ^^^^^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 36 | pub fn iter(&self) -> RefIter<'_, T> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: `biheap` (lib) generated 9 warnings (run `cargo fix --lib -p biheap` to apply 3 suggestions) [INFO] [stderr] warning: `biheap` (lib test) generated 9 warnings (9 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/biheap-dba54ff561e44e3a) [INFO] [stdout] [INFO] [stdout] running 31 tests [INFO] [stderr] [INFO] [stderr] thread 'bivec::extend::reserve_1' (29) panicked at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ptr/mod.rs:527:5: [INFO] [stderr] unsafe precondition(s) violated: ptr::copy_nonoverlapping requires that both pointer arguments are aligned and non-null and the specified memory ranges do not overlap [INFO] [stderr] [INFO] [stderr] This indicates a bug in the program. This Undefined Behavior check is optional, and cannot be relied on for safety. [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x5be76b307132 - std::backtrace_rs::backtrace::libunwind::trace::h589a96ef7638b383 [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stderr] 1: 0x5be76b307132 - std::backtrace_rs::backtrace::trace_unsynchronized::h23a30a7548c40de4 [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stderr] 2: 0x5be76b307132 - std::sys::backtrace::_print_fmt::h87dabd6535c8c07a [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:66:9 [INFO] [stderr] 3: 0x5be76b307132 - ::fmt::hffd20ad4e5eca8ab [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:39:26 [INFO] [stderr] 4: 0x5be76b317f0f - core::fmt::rt::Argument::fmt::h75c83e3fd5ce2419 [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/fmt/rt.rs:173:76 [INFO] [stderr] 5: 0x5be76b317f0f - core::fmt::write::h6d9d3a7cfd7b84f5 [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/fmt/mod.rs:1468:25 [INFO] [stderr] 6: 0x5be76b2d4893 - std::io::default_write_fmt::ha7130bf70117e1da [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/io/mod.rs:639:11 [INFO] [stderr] 7: 0x5be76b2d4893 - std::io::Write::write_fmt::h22459ad26fe60c51 [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/io/mod.rs:1954:13 [INFO] [stderr] 8: 0x5be76b2e08b2 - std::sys::backtrace::BacktraceLock::print::hb28797143397220e [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:42:9 [INFO] [stderr] 9: 0x5be76b2e52af - std::panicking::default_hook::{{closure}}::h7555113b62983743 [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:301:27 [INFO] [stderr] 10: 0x5be76b2e5109 - std::panicking::default_hook::h2714b564abe8d914 [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:328:9 [INFO] [stderr] 11: 0x5be76b2a51ce - as core::ops::function::Fn>::call::h0e9de8cceb22406e [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/alloc/src/boxed.rs:1999:9 [INFO] [stderr] 12: 0x5be76b2a51ce - test::test_main_with_exit_callback::{{closure}}::h8125bd66cf4739d0 [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:145:21 [INFO] [stderr] 13: 0x5be76b2e594e - as core::ops::function::Fn>::call::h1fd0a0802eaec16b [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/alloc/src/boxed.rs:1999:9 [INFO] [stderr] 14: 0x5be76b2e594e - std::panicking::panic_with_hook::h190dc82263685ec5 [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:842:13 [INFO] [stderr] 15: 0x5be76b2e56e6 - std::panicking::panic_handler::{{closure}}::h8b036a1b366643ac [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:700:13 [INFO] [stderr] 16: 0x5be76b2e09e9 - std::sys::backtrace::__rust_end_short_backtrace::h45affcfc0c830da8 [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:174:18 [INFO] [stderr] 17: 0x5be76b2c8d5d - __rustc[9b67c8562bba447b]::rust_begin_unwind [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:698:5 [INFO] [stderr] 18: 0x5be76b31f5fd - core::panicking::panic_nounwind_fmt::runtime::h0e9d970dfc029f14 [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/panicking.rs:117:22 [INFO] [stderr] 19: 0x5be76b31f5fd - core::panicking::panic_nounwind_fmt::h120e82628a1ba90a [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/intrinsics/mod.rs:2380:9 [INFO] [stderr] 20: 0x5be76b26c6a3 - core::ptr::copy_nonoverlapping::precondition_check::h5f9b79c76e94386b [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ub_checks.rs:72:21 [INFO] [stderr] 21: 0x5be76b277600 - core::ptr::copy_nonoverlapping::h40f9878bddbfda1d [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ub_checks.rs:77:17 [INFO] [stderr] 22: 0x5be76b277600 - biheap::bivec::extend::>::set_capacity_or_nothing::he16127a245ee7b02 [INFO] [stderr] at /opt/rustwide/workdir/src/bivec/extend.rs:19:13 [INFO] [stderr] 23: 0x5be76b277c59 - biheap::bivec::extend::>::reserve::h99738c06917ea6cd [INFO] [stderr] at /opt/rustwide/workdir/src/bivec/extend.rs:84:14 [INFO] [stderr] 24: 0x5be76b281215 - biheap::bivec::extend::reserve_1::hacba052269643c11 [INFO] [stderr] at /opt/rustwide/workdir/src/bivec/extend.rs:92:11 [INFO] [stderr] 25: 0x5be76b281427 - biheap::bivec::extend::reserve_1::{{closure}}::h0e7bb7084074c17e [INFO] [stderr] at /opt/rustwide/workdir/src/bivec/extend.rs:89:15 [INFO] [stderr] 26: 0x5be76b27ab46 - core::ops::function::FnOnce::call_once::h628b85828c19caa6 [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ops/function.rs:253:5 [INFO] [stderr] 27: 0x5be76b2a4f8b - core::ops::function::FnOnce::call_once::hdbf42be2a49fb464 [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ops/function.rs:253:5 [INFO] [stderr] 28: 0x5be76b2a4f8b - test::__rust_begin_short_backtrace::h8ae08814d38cb356 [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:663:18 [INFO] [stderr] 29: 0x5be76b2baa75 - test::run_test_in_process::{{closure}}::h54574ee4f414d690 [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:686:74 [INFO] [stderr] 30: 0x5be76b2baa75 - as core::ops::function::FnOnce<()>>::call_once::h01a0b7e7aad1a501 [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stderr] 31: 0x5be76b2baa75 - std::panicking::catch_unwind::do_call::h23820e817c5612cd [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:590:40 [INFO] [stderr] 32: 0x5be76b2baa75 - std::panicking::catch_unwind::h89c73a1febce5587 [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:553:19 [INFO] [stderr] 33: 0x5be76b2baa75 - std::panic::catch_unwind::h6f55caf410861914 [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panic.rs:359:14 [INFO] [stderr] 34: 0x5be76b2baa75 - test::run_test_in_process::h4db851878e5d3983 [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:686:27 [INFO] [stderr] 35: 0x5be76b2baa75 - test::run_test::{{closure}}::h57e8c5acaceacd24 [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:607:43 [INFO] [stderr] 36: 0x5be76b291464 - test::run_test::{{closure}}::he775ccc3a9d3b97e [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:637:41 [INFO] [stderr] 37: 0x5be76b291464 - std::sys::backtrace::__rust_begin_short_backtrace::hcd94d85d7765225a [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:158:18 [INFO] [stderr] 38: 0x5be76b294caa - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::ha814de8393f07830 [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/thread/mod.rs:559:17 [INFO] [stderr] 39: 0x5be76b294caa - as core::ops::function::FnOnce<()>>::call_once::h8deb00af0abdeaf1 [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stderr] 40: 0x5be76b294caa - std::panicking::catch_unwind::do_call::h1917979b0c279ea2 [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:590:40 [INFO] [stderr] 41: 0x5be76b294caa - std::panicking::catch_unwind::h791ad91fee6ce34e [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:553:19 [INFO] [stderr] 42: 0x5be76b294caa - std::panic::catch_unwind::h982b8f40ed9c3cce [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panic.rs:359:14 [INFO] [stderr] 43: 0x5be76b294caa - std::thread::Builder::spawn_unchecked_::{{closure}}::h545e54700c945db4 [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/thread/mod.rs:557:30 [INFO] [stderr] 44: 0x5be76b294caa - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb427481a5227d78a [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ops/function.rs:253:5 [INFO] [stderr] 45: 0x5be76b2dac6f - as core::ops::function::FnOnce>::call_once::h1d452951a81e9d0a [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/alloc/src/boxed.rs:1985:9 [INFO] [stderr] 46: 0x5be76b2dac6f - std::sys::pal::unix::thread::Thread::new::thread_start::h29c84e109630689a [INFO] [stderr] at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/pal/unix/thread.rs:118:17 [INFO] [stderr] 47: 0x7daa2f67aaa4 - [INFO] [stderr] 48: 0x7daa2f707a34 - clone [INFO] [stderr] 49: 0x0 - [INFO] [stderr] thread caused non-unwinding panic. aborting. [INFO] [stderr] error: test failed, to rerun pass `--lib` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/deps/biheap-dba54ff561e44e3a` (signal: 6, SIGABRT: process abort signal) [INFO] running `Command { std: "docker" "inspect" "55413f348d1be00f46124a1b41bc608b4c729f144b4f2afc258a31f7414420be", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "55413f348d1be00f46124a1b41bc608b4c729f144b4f2afc258a31f7414420be", kill_on_drop: false }` [INFO] [stdout] 55413f348d1be00f46124a1b41bc608b4c729f144b4f2afc258a31f7414420be