[INFO] crate skiplist 0.3.0 is already in cache [INFO] testing skiplist-0.3.0 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409 [INFO] extracting crate skiplist 0.3.0 into /workspace/builds/worker-9/source [INFO] validating manifest of crates.io crate skiplist 0.3.0 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate skiplist 0.3.0 [INFO] finished tweaking crates.io crate skiplist 0.3.0 [INFO] tweaked toml for crates.io crate skiplist 0.3.0 written to /workspace/builds/worker-9/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a7c8a8d523cbd7d5a53f4495cf8207acf42d908dc76a8514f97238df7c837ee4 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "a7c8a8d523cbd7d5a53f4495cf8207acf42d908dc76a8514f97238df7c837ee4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a7c8a8d523cbd7d5a53f4495cf8207acf42d908dc76a8514f97238df7c837ee4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a7c8a8d523cbd7d5a53f4495cf8207acf42d908dc76a8514f97238df7c837ee4", kill_on_drop: false }` [INFO] [stdout] a7c8a8d523cbd7d5a53f4495cf8207acf42d908dc76a8514f97238df7c837ee4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c24fd50a6ba803b8644ac1d6bef9c42434531fad192216b16c514bda47a37a9e [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "c24fd50a6ba803b8644ac1d6bef9c42434531fad192216b16c514bda47a37a9e", kill_on_drop: false }` [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand_pcg v0.2.1 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling skiplist v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/ordered_skiplist.rs:249:17 [INFO] [stdout] | [INFO] [stdout] 249 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/ordered_skiplist.rs:254:9 [INFO] [stdout] | [INFO] [stdout] 254 | mem::replace(&mut self.head, new_head); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/ordered_skiplist.rs:882:21 [INFO] [stdout] | [INFO] [stdout] 882 | mem::replace(&mut (*prev).next, mem::replace(&mut (*node).next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/ordered_skiplist.rs:961:21 [INFO] [stdout] | [INFO] [stdout] 961 | mem::replace(&mut (*prev).next, mem::replace(&mut (*node).next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/ordered_skiplist.rs:1397:17 [INFO] [stdout] | [INFO] [stdout] 1397 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/skiplist.rs:95:17 [INFO] [stdout] | [INFO] [stdout] 95 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/skiplist.rs:100:9 [INFO] [stdout] | [INFO] [stdout] 100 | mem::replace(&mut self.head, new_head); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/skiplist.rs:583:21 [INFO] [stdout] | [INFO] [stdout] 583 | mem::replace(&mut (*prev).next, mem::replace(&mut (*node).next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/skiplist.rs:886:21 [INFO] [stdout] | [INFO] [stdout] 886 | mem::replace(&mut (*prev).next, mem::replace(&mut (*node).next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/skiplist.rs:1120:17 [INFO] [stdout] | [INFO] [stdout] 1120 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/skipmap.rs:309:17 [INFO] [stdout] | [INFO] [stdout] 309 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/skipmap.rs:314:9 [INFO] [stdout] | [INFO] [stdout] 314 | mem::replace(&mut self.head, new_head); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/skipmap.rs:1293:17 [INFO] [stdout] | [INFO] [stdout] 1293 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.35s [INFO] running `Command { std: "docker" "inspect" "c24fd50a6ba803b8644ac1d6bef9c42434531fad192216b16c514bda47a37a9e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c24fd50a6ba803b8644ac1d6bef9c42434531fad192216b16c514bda47a37a9e", kill_on_drop: false }` [INFO] [stdout] c24fd50a6ba803b8644ac1d6bef9c42434531fad192216b16c514bda47a37a9e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 17ddb7edd8b8d99a1425ff216be850f91eeb379a67ed44538ede691b6f32b449 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "17ddb7edd8b8d99a1425ff216be850f91eeb379a67ed44538ede691b6f32b449", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling syn v1.0.35 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/ordered_skiplist.rs:249:17 [INFO] [stdout] | [INFO] [stdout] 249 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/ordered_skiplist.rs:254:9 [INFO] [stdout] | [INFO] [stdout] 254 | mem::replace(&mut self.head, new_head); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/ordered_skiplist.rs:882:21 [INFO] [stdout] | [INFO] [stdout] 882 | mem::replace(&mut (*prev).next, mem::replace(&mut (*node).next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/ordered_skiplist.rs:961:21 [INFO] [stdout] | [INFO] [stdout] 961 | mem::replace(&mut (*prev).next, mem::replace(&mut (*node).next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/ordered_skiplist.rs:1397:17 [INFO] [stdout] | [INFO] [stdout] 1397 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/skiplist.rs:95:17 [INFO] [stdout] | [INFO] [stdout] 95 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/skiplist.rs:100:9 [INFO] [stdout] | [INFO] [stdout] 100 | mem::replace(&mut self.head, new_head); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/skiplist.rs:583:21 [INFO] [stdout] | [INFO] [stdout] 583 | mem::replace(&mut (*prev).next, mem::replace(&mut (*node).next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/skiplist.rs:886:21 [INFO] [stdout] | [INFO] [stdout] 886 | mem::replace(&mut (*prev).next, mem::replace(&mut (*node).next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/skiplist.rs:1120:17 [INFO] [stdout] | [INFO] [stdout] 1120 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/skipmap.rs:309:17 [INFO] [stdout] | [INFO] [stdout] 309 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/skipmap.rs:314:9 [INFO] [stdout] | [INFO] [stdout] 314 | mem::replace(&mut self.head, new_head); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/skipmap.rs:1293:17 [INFO] [stdout] | [INFO] [stdout] 1293 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling walkdir v2.3.1 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.5 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling rayon v1.3.1 [INFO] [stderr] Compiling clap v2.33.1 [INFO] [stderr] Compiling regex-automata v0.1.9 [INFO] [stderr] Compiling bstr v0.2.13 [INFO] [stderr] Compiling crossbeam-queue v0.2.3 [INFO] [stderr] Compiling csv v1.1.3 [INFO] [stderr] Compiling crossbeam-deque v0.7.3 [INFO] [stderr] Compiling plotters v0.2.15 [INFO] [stderr] Compiling rayon-core v1.7.1 [INFO] [stderr] Compiling serde_derive v1.0.114 [INFO] [stderr] Compiling criterion v0.3.3 [INFO] [stderr] Compiling skiplist v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/ordered_skiplist.rs:249:17 [INFO] [stdout] | [INFO] [stdout] 249 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/ordered_skiplist.rs:254:9 [INFO] [stdout] | [INFO] [stdout] 254 | mem::replace(&mut self.head, new_head); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/ordered_skiplist.rs:882:21 [INFO] [stdout] | [INFO] [stdout] 882 | mem::replace(&mut (*prev).next, mem::replace(&mut (*node).next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/ordered_skiplist.rs:961:21 [INFO] [stdout] | [INFO] [stdout] 961 | mem::replace(&mut (*prev).next, mem::replace(&mut (*node).next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/ordered_skiplist.rs:1397:17 [INFO] [stdout] | [INFO] [stdout] 1397 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/skiplist.rs:95:17 [INFO] [stdout] | [INFO] [stdout] 95 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/skiplist.rs:100:9 [INFO] [stdout] | [INFO] [stdout] 100 | mem::replace(&mut self.head, new_head); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/skiplist.rs:583:21 [INFO] [stdout] | [INFO] [stdout] 583 | mem::replace(&mut (*prev).next, mem::replace(&mut (*node).next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/skiplist.rs:886:21 [INFO] [stdout] | [INFO] [stdout] 886 | mem::replace(&mut (*prev).next, mem::replace(&mut (*node).next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/skiplist.rs:1120:17 [INFO] [stdout] | [INFO] [stdout] 1120 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/skipmap.rs:309:17 [INFO] [stdout] | [INFO] [stdout] 309 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/skipmap.rs:314:9 [INFO] [stdout] | [INFO] [stdout] 314 | mem::replace(&mut self.head, new_head); [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] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/skipmap.rs:1293:17 [INFO] [stdout] | [INFO] [stdout] 1293 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 45.22s [INFO] running `Command { std: "docker" "inspect" "17ddb7edd8b8d99a1425ff216be850f91eeb379a67ed44538ede691b6f32b449", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "17ddb7edd8b8d99a1425ff216be850f91eeb379a67ed44538ede691b6f32b449", kill_on_drop: false }` [INFO] [stdout] 17ddb7edd8b8d99a1425ff216be850f91eeb379a67ed44538ede691b6f32b449 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] bf1f30f2d02caa5e7d5966ce057db74f3dac651efd1afb42a15b0cb9cf7ea9dc [INFO] running `Command { std: "docker" "start" "-a" "bf1f30f2d02caa5e7d5966ce057db74f3dac651efd1afb42a15b0cb9cf7ea9dc", kill_on_drop: false }` [INFO] [stdout] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] running 58 tests [INFO] [stderr] --> src/ordered_skiplist.rs:249:17 [INFO] [stderr] | [INFO] [stderr] 249 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/ordered_skiplist.rs:254:9 [INFO] [stderr] | [INFO] [stderr] 254 | mem::replace(&mut self.head, new_head); [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] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/ordered_skiplist.rs:249:17 [INFO] [stderr] | [INFO] [stderr] 249 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/ordered_skiplist.rs:254:9 [INFO] [stderr] | [INFO] [stderr] 254 | mem::replace(&mut self.head, new_head); [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] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/ordered_skiplist.rs:882:21 [INFO] [stderr] | [INFO] [stderr] 882 | mem::replace(&mut (*prev).next, mem::replace(&mut (*node).next, None)); [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] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/ordered_skiplist.rs:882:21 [INFO] [stderr] | [INFO] [stderr] 882 | mem::replace(&mut (*prev).next, mem::replace(&mut (*node).next, None)); [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] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/ordered_skiplist.rs:961:21 [INFO] [stderr] | [INFO] [stderr] 961 | mem::replace(&mut (*prev).next, mem::replace(&mut (*node).next, None)); [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] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/ordered_skiplist.rs:1397:17 [INFO] [stderr] | [INFO] [stderr] 1397 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/ordered_skiplist.rs:961:21 [INFO] [stderr] | [INFO] [stderr] 961 | mem::replace(&mut (*prev).next, mem::replace(&mut (*node).next, None)); [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] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/ordered_skiplist.rs:1397:17 [INFO] [stderr] | [INFO] [stderr] 1397 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/skiplist.rs:95:17 [INFO] [stderr] | [INFO] [stderr] 95 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/skiplist.rs:95:17 [INFO] [stderr] | [INFO] [stderr] 95 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/skiplist.rs:100:9 [INFO] [stderr] | [INFO] [stderr] 100 | mem::replace(&mut self.head, new_head); [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] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/skiplist.rs:583:21 [INFO] [stderr] | [INFO] [stderr] 583 | mem::replace(&mut (*prev).next, mem::replace(&mut (*node).next, None)); [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] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/skiplist.rs:100:9 [INFO] [stderr] | [INFO] [stderr] 100 | mem::replace(&mut self.head, new_head); [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] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/skiplist.rs:583:21 [INFO] [stderr] | [INFO] [stderr] 583 | mem::replace(&mut (*prev).next, mem::replace(&mut (*node).next, None)); [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] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/skiplist.rs:886:21 [INFO] [stderr] | [INFO] [stderr] 886 | mem::replace(&mut (*prev).next, mem::replace(&mut (*node).next, None)); [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] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/skiplist.rs:886:21 [INFO] [stderr] | [INFO] [stderr] 886 | mem::replace(&mut (*prev).next, mem::replace(&mut (*node).next, None)); [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] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/skiplist.rs:1120:17 [INFO] [stderr] | [INFO] [stderr] 1120 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/skipmap.rs:309:17 [INFO] [stderr] | [INFO] [stderr] 309 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/skiplist.rs:1120:17 [INFO] [stderr] | [INFO] [stderr] 1120 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/skipmap.rs:309:17 [INFO] [stderr] | [INFO] [stderr] 309 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/skipmap.rs:314:9 [INFO] [stderr] | [INFO] [stderr] 314 | mem::replace(&mut self.head, new_head); [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] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/skipmap.rs:314:9 [INFO] [stderr] | [INFO] [stderr] 314 | mem::replace(&mut self.head, new_head); [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] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/skipmap.rs:1293:17 [INFO] [stderr] | [INFO] [stderr] 1293 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stderr] warning: 13 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/skipmap.rs:1293:17 [INFO] [stderr] | [INFO] [stderr] 1293 | mem::replace(&mut (*node).next, mem::replace(&mut next.next, None)); [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] [INFO] [stderr] warning: 13 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.15s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/skiplist-4429934a05993744 [INFO] [stdout] test level_generator::tests::new ... ok [INFO] [stdout] test ordered_skiplist::tests::contains ... ok [INFO] [stdout] test ordered_skiplist::tests::equality ... ok [INFO] [stdout] test ordered_skiplist::tests::range_1000 ... ok [INFO] [stdout] test ordered_skiplist::tests::range_small ... ok [INFO] [stdout] test ordered_skiplist::tests::basic_small ... ok [INFO] [stdout] test ordered_skiplist::tests::remove ... ok [INFO] [stdout] test ordered_skiplist::tests::sort_by ... ok [INFO] [stdout] test ordered_skiplist::tests::debug_display ... ok [INFO] [stdout] test ordered_skiplist::tests::with_comp ... ok [INFO] [stdout] test ordered_skiplist::tests::clear ... ok [INFO] [stdout] test ordered_skiplist::tests::index_pop ... ok [INFO] [stdout] test skiplist::tests::basic_small ... ok [INFO] [stdout] test skiplist::tests::clear ... ok [INFO] [stdout] test skiplist::tests::contains ... ok [INFO] [stdout] test skiplist::tests::debug_display ... ok [INFO] [stdout] test skiplist::tests::equality ... ok [INFO] [stdout] test skiplist::tests::index_pop ... ok [INFO] [stdout] test level_generator::tests::invalid_p_1 ... ok [INFO] [stdout] test level_generator::tests::invalid_total ... ok [INFO] [stdout] test level_generator::tests::invalid_p_0 ... ok [INFO] [stdout] test ordered_skiplist::tests::sort_by_panic ... ok [INFO] [stdout] test ordered_skiplist::tests::remove_index ... ok [INFO] [stdout] test ordered_skiplist::tests::iter_mixed ... ok [INFO] [stdout] test skiplist::tests::inplace_mut ... ok [INFO] [stdout] test skiplist::tests::range_1000 ... ok [INFO] [stdout] test skiplist::tests::range_small ... ok [INFO] [stdout] test skiplist::tests::range_mut_1000 ... ok [INFO] [stdout] test skipmap::tests::basic_small ... ok [INFO] [stdout] test skipmap::tests::clear ... ok [INFO] [stdout] test skipmap::tests::contains ... ok [INFO] [stdout] test skipmap::tests::debug_display ... ok [INFO] [stdout] test ordered_skiplist::tests::iter_rev ... ok [INFO] [stdout] test ordered_skiplist::tests::basic_large ... ok [INFO] [stdout] test skipmap::tests::equality ... ok [INFO] [stdout] test skipmap::tests::insert_existing ... ok [INFO] [stdout] test ordered_skiplist::tests::iter ... ok [INFO] [stdout] test skipmap::tests::iter_key_val ... ok [INFO] [stdout] test skipmap::tests::iter_mixed ... ok [INFO] [stdout] test skiplist::tests::iter_rev ... ok [INFO] [stdout] test skipmap::tests::range_1000 ... ok [INFO] [stdout] test skipmap::tests::iter_rev ... ok [INFO] [stdout] test skipmap::tests::range_small ... ok [INFO] [stdout] test skipmap::tests::index_pop ... ok [INFO] [stdout] test ordered_skiplist::tests::retain ... ok [INFO] [stdout] test ordered_skiplist::tests::pop ... ok [INFO] [stdout] test skiplist::tests::retain ... ok [INFO] [stdout] test skiplist::tests::iter_mixed ... ok [INFO] [stdout] test skiplist::tests::iter ... ok [INFO] [stdout] test skipmap::tests::basic_large ... ok [INFO] [stdout] test skipmap::tests::iter ... ok [INFO] [stdout] test skipmap::tests::remove_index ... ok [INFO] [stdout] test ordered_skiplist::tests::range ... ok [INFO] [stdout] test skipmap::tests::range ... ok [INFO] [stdout] test skiplist::tests::range ... ok [INFO] [stdout] test ordered_skiplist::tests::dedup ... ok [INFO] [stdout] test skiplist::tests::dedup ... ok [INFO] [stdout] test skiplist::tests::basic_large ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 58 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Doc-tests skiplist [INFO] [stdout] [INFO] [stdout] running 69 tests [INFO] [stdout] test src/ordered_skiplist.rs - ordered_skiplist::OrderedSkipList::new (line 69) ... ok [INFO] [stdout] test src/ordered_skiplist.rs - ordered_skiplist::OrderedSkipList::get (line 432) ... ok [INFO] [stdout] test src/ordered_skiplist.rs - ordered_skiplist::OrderedSkipList::len (line 261) ... ok [INFO] [stdout] test src/ordered_skiplist.rs - ordered_skiplist::OrderedSkipList::clear (line 235) ... ok [INFO] [stdout] test src/ordered_skiplist.rs - ordered_skiplist::OrderedSkipList::dedup (line 893) ... ok [INFO] [stdout] test src/ordered_skiplist.rs - ordered_skiplist::OrderedSkipList::pop_back (line 481) ... ok [INFO] [stdout] test src/ordered_skiplist.rs - ordered_skiplist::OrderedSkipList::iter (line 994) ... ok [INFO] [stdout] test src/ordered_skiplist.rs - ordered_skiplist::OrderedSkipList::insert (line 295) ... ok [INFO] [stdout] test src/ordered_skiplist.rs - ordered_skiplist::OrderedSkipList::into_iter (line 971) ... ok [INFO] [stdout] test src/ordered_skiplist.rs - ordered_skiplist::OrderedSkipList::remove (line 555) ... ok [INFO] [stdout] test src/ordered_skiplist.rs - ordered_skiplist::OrderedSkipList::is_empty (line 277) ... ok [INFO] [stdout] test src/ordered_skiplist.rs - ordered_skiplist::OrderedSkipList::back (line 407) ... ok [INFO] [stdout] test src/ordered_skiplist.rs - ordered_skiplist::OrderedSkipList::front (line 383) ... ok [INFO] [stdout] test src/ordered_skiplist.rs - ordered_skiplist::OrderedSkipList::contains (line 506) ... ok [INFO] [stdout] test src/ordered_skiplist.rs - ordered_skiplist::OrderedSkipList::pop_front (line 456) ... ok [INFO] [stdout] test src/ordered_skiplist.rs - ordered_skiplist::OrderedSkipList::range (line 1020) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::contains (line 791) ... ok [INFO] [stdout] test src/ordered_skiplist.rs - ordered_skiplist::OrderedSkipList::with_capacity (line 102) ... ok [INFO] [stdout] test src/ordered_skiplist.rs - ordered_skiplist::OrderedSkipList::remove_first (line 659) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::front_mut (line 291) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::back (line 315) ... ok [INFO] [stdout] test src/ordered_skiplist.rs - ordered_skiplist::OrderedSkipList::retain (line 827) ... ok [INFO] [stdout] test src/ordered_skiplist.rs - ordered_skiplist::OrderedSkipList::with_comp (line 146) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::get (line 365) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::clear (line 81) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::insert (line 146) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::into_iter (line 593) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::get_mut (line 389) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::front (line 267) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::dedup (line 816) ... ok [INFO] [stdout] test src/ordered_skiplist.rs - ordered_skiplist::OrderedSkipList::remove_index (line 769) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::back_mut (line 340) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::new (line 38) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::is_empty (line 123) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::push_front (line 235) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::push_back (line 250) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::iter (line 616) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::pop_front (line 417) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::pop_back (line 442) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::retain (line 528) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::with_capacity (line 60) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::remove (line 471) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::iter_mut (line 638) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::len (line 107) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::range (line 664) ... ok [INFO] [stdout] test src/skiplist.rs - skiplist::SkipList::range_mut (line 727) ... ok [INFO] [stdout] test src/skipmap.rs - skipmap::SkipMap::back_mut (line 453) ... ok [INFO] [stdout] test src/skipmap.rs - skipmap::SkipMap::back (line 419) ... ok [INFO] [stdout] test src/skipmap.rs - skipmap::SkipMap::clear (line 295) ... ok [INFO] [stdout] test src/skipmap.rs - skipmap::SkipMap::contains_key (line 628) ... ok [INFO] [stdout] test src/skipmap.rs - skipmap::SkipMap::insert (line 180) ... ok [INFO] [stdout] test src/skipmap.rs - skipmap::SkipMap::front (line 356) ... ok [INFO] [stdout] test src/skipmap.rs - skipmap::SkipMap::new (line 137) ... ok [INFO] [stdout] test src/skipmap.rs - skipmap::SkipMap::front_mut (line 389) ... ok [INFO] [stdout] test src/skipmap.rs - skipmap::SkipMap::get (line 484) ... ok [INFO] [stdout] test src/skipmap.rs - skipmap::SkipMap::iter (line 861) ... ok [INFO] [stdout] test src/skipmap.rs - skipmap::SkipMap::len (line 321) ... ok [INFO] [stdout] test src/skipmap.rs - skipmap::SkipMap::iter_mut (line 886) ... ok [INFO] [stdout] test src/skipmap.rs - skipmap::SkipMap::get_mut (line 529) ... ok [INFO] [stdout] test src/skipmap.rs - skipmap::SkipMap::pop_back (line 603) ... ok [INFO] [stdout] test src/skipmap.rs - skipmap::SkipMap::is_empty (line 337) ... ok [INFO] [stdout] test src/skipmap.rs - skipmap::SkipMap::keys (line 909) ... ok [INFO] [stdout] test src/skipmap.rs - skipmap::SkipMap::into_iter (line 838) ... ok [INFO] [stdout] test src/skipmap.rs - skipmap::SkipMap::pop_front (line 578) ... ok [INFO] [stdout] test src/skipmap.rs - skipmap::SkipMap::range (line 957) ... ok [INFO] [stdout] test src/skipmap.rs - skipmap::SkipMap::remove_index (line 784) ... ok [INFO] [stdout] test src/skipmap.rs - skipmap::SkipMap::values (line 931) ... ok [INFO] [stdout] test src/skipmap.rs - skipmap::SkipMap::with_capacity (line 159) ... ok [INFO] [stdout] test src/skipmap.rs - skipmap::SkipMap::remove (line 674) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/skipmap.rs - skipmap::SkipMap::remove (line 674) stdout ---- [INFO] [stdout] Test executable failed (exit code 101). [INFO] [stdout] [INFO] [stdout] stderr: [INFO] [stdout] thread 'main' panicked at 'attempt to subtract with overflow', /opt/rustwide/workdir/src/skipmap.rs:753:25 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x561ff2468315 - backtrace::backtrace::libunwind::trace::hea89dfbbfe67f40d [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stdout] 1: 0x561ff2468315 - backtrace::backtrace::trace_unsynchronized::h0513dd713d7644d4 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x561ff2468315 - std::sys_common::backtrace::_print_fmt::h040abae64e4a24a9 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stdout] 3: 0x561ff2468315 - ::fmt::hb4bdb37c3c335733 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stdout] 4: 0x561ff24853dc - core::fmt::write::h540ac4a6a1232abc [INFO] [stdout] at src/libcore/fmt/mod.rs:1076 [INFO] [stdout] 5: 0x561ff24669e2 - std::io::Write::write_fmt::h5ffa1b5a7703af47 [INFO] [stdout] at src/libstd/io/mod.rs:1539 [INFO] [stdout] 6: 0x561ff246a750 - std::sys_common::backtrace::_print::hb55cc635eaf1882e [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stdout] 7: 0x561ff246a750 - std::sys_common::backtrace::print::h2b2218fa55714084 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stdout] 8: 0x561ff246a750 - std::panicking::default_hook::{{closure}}::h578517c025765cf3 [INFO] [stdout] at src/libstd/panicking.rs:198 [INFO] [stdout] 9: 0x561ff246a49c - std::panicking::default_hook::h4cafc94c2fc640fb [INFO] [stdout] at src/libstd/panicking.rs:217 [INFO] [stdout] 10: 0x561ff246ad93 - std::panicking::rust_panic_with_hook::h3eeb5001beeca5c3 [INFO] [stdout] at src/libstd/panicking.rs:526 [INFO] [stdout] 11: 0x561ff246a98b - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:437 [INFO] [stdout] 12: 0x561ff24847e1 - core::panicking::panic_fmt::h78830ea6a34e7206 [INFO] [stdout] at src/libcore/panicking.rs:85 [INFO] [stdout] 13: 0x561ff248472d - core::panicking::panic::h68e56c2eeba99c8c [INFO] [stdout] at src/libcore/panicking.rs:50 [INFO] [stdout] 14: 0x561ff2415243 - skiplist::skipmap::SkipMap::remove::h6eb56d2cee7ae5e1 [INFO] [stdout] 15: 0x561ff24164c2 - rust_out::main::h405f65324f7b53be [INFO] [stdout] 16: 0x561ff240d483 - std::rt::lang_start::{{closure}}::h4b28e45528b64eb3 [INFO] [stdout] 17: 0x561ff246b163 - std::rt::lang_start_internal::{{closure}}::h155f3093add35bce [INFO] [stdout] at src/libstd/rt.rs:52 [INFO] [stdout] 18: 0x561ff246b163 - std::panicking::try::do_call::h45f1f66ee6b987d6 [INFO] [stdout] at src/libstd/panicking.rs:348 [INFO] [stdout] 19: 0x561ff246b163 - std::panicking::try::h0924dfb942cef7e3 [INFO] [stdout] at src/libstd/panicking.rs:325 [INFO] [stdout] 20: 0x561ff246b163 - std::panic::catch_unwind::h883180846c5b53fa [INFO] [stdout] at src/libstd/panic.rs:394 [INFO] [stdout] 21: 0x561ff246b163 - std::rt::lang_start_internal::he9284d43a52786c5 [INFO] [stdout] at src/libstd/rt.rs:51 [INFO] [stdout] 22: 0x561ff240d468 - std::rt::lang_start::hb412ec904ea47782 [INFO] [stdout] 23: 0x561ff241672b - main [INFO] [stdout] 24: 0x7f1b43bc80b3 - __libc_start_main [INFO] [stdout] 25: 0x561ff240d18e - _start [INFO] [stdout] 26: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/skipmap.rs - skipmap::SkipMap::remove (line 674) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 68 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] running `Command { std: "docker" "inspect" "bf1f30f2d02caa5e7d5966ce057db74f3dac651efd1afb42a15b0cb9cf7ea9dc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bf1f30f2d02caa5e7d5966ce057db74f3dac651efd1afb42a15b0cb9cf7ea9dc", kill_on_drop: false }` [INFO] [stdout] bf1f30f2d02caa5e7d5966ce057db74f3dac651efd1afb42a15b0cb9cf7ea9dc