[INFO] fetching crate pvec 0.2.1... [INFO] checking pvec-0.2.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate pvec 0.2.1 into /workspace/builds/worker-6-tc1/source [INFO] validating manifest of crates.io crate pvec 0.2.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate pvec 0.2.1 [INFO] finished tweaking crates.io crate pvec 0.2.1 [INFO] tweaked toml for crates.io crate pvec 0.2.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 89 packages [INFO] [stderr] Adding autocfg v0.1.8 (latest: v1.2.0) [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding bitmaps v2.1.0 (latest: v3.2.1) [INFO] [stderr] Adding clap v2.34.0 (latest: v4.5.4) [INFO] [stderr] Adding cloudabi v0.0.3 (latest: v0.1.0) [INFO] [stderr] Adding criterion v0.3.6 (latest: v0.5.1) [INFO] [stderr] Adding criterion-plot v0.4.5 (latest: v0.5.0) [INFO] [stderr] Adding half v1.8.3 (latest: v2.4.0) [INFO] [stderr] Adding hermit-abi v0.1.19 (latest: v0.3.9) [INFO] [stderr] Adding im v14.3.0 (latest: v15.1.0) [INFO] [stderr] Adding im-rc v14.3.0 (latest: v15.1.0) [INFO] [stderr] Adding itertools v0.10.5 (latest: v0.12.1) [INFO] [stderr] Adding num v0.2.1 (latest: v0.4.1) [INFO] [stderr] Adding num-bigint v0.2.6 (latest: v0.4.4) [INFO] [stderr] Adding num-complex v0.2.4 (latest: v0.4.5) [INFO] [stderr] Adding num-rational v0.2.4 (latest: v0.4.1) [INFO] [stderr] Adding rand v0.6.5 (latest: v0.8.5) [INFO] [stderr] Adding rand_chacha v0.1.1 (latest: v0.3.1) [INFO] [stderr] Adding rand_core v0.3.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_core v0.4.2 (latest: v0.6.4) [INFO] [stderr] Adding rand_core v0.5.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_hc v0.1.0 (latest: v0.3.2) [INFO] [stderr] Adding rand_isaac v0.1.1 (latest: v0.3.0) [INFO] [stderr] Adding rand_jitter v0.1.4 (latest: v0.4.0) [INFO] [stderr] Adding rand_os v0.1.3 (latest: v0.2.2) [INFO] [stderr] Adding rand_pcg v0.1.2 (latest: v0.3.1) [INFO] [stderr] Adding rand_xorshift v0.1.1 (latest: v0.3.0) [INFO] [stderr] Adding rand_xoshiro v0.4.0 (latest: v0.6.0) [INFO] [stderr] Adding rdrand v0.4.0 (latest: v0.8.3) [INFO] [stderr] Adding sized-chunks v0.5.3 (latest: v0.7.0) [INFO] [stderr] Adding textwrap v0.11.0 (latest: v0.16.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded rand_xoshiro v0.4.0 [INFO] [stderr] Downloaded sized-chunks v0.5.3 [INFO] [stderr] Downloaded im v14.3.0 [INFO] [stderr] Downloaded im-rc v14.3.0 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 19223c4d59a0130c833e6244a3492ce6c0e67c699f31d7ba8fc7e3245c0ef61b [INFO] running `Command { std: "docker" "start" "-a" "19223c4d59a0130c833e6244a3492ce6c0e67c699f31d7ba8fc7e3245c0ef61b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "19223c4d59a0130c833e6244a3492ce6c0e67c699f31d7ba8fc7e3245c0ef61b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "19223c4d59a0130c833e6244a3492ce6c0e67c699f31d7ba8fc7e3245c0ef61b", kill_on_drop: false }` [INFO] [stdout] 19223c4d59a0130c833e6244a3492ce6c0e67c699f31d7ba8fc7e3245c0ef61b [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 87b3a53f88b4255fcaba809cdffb2c2605959d6c19c1e70c09889f2e825041df [INFO] running `Command { std: "docker" "start" "-a" "87b3a53f88b4255fcaba809cdffb2c2605959d6c19c1e70c09889f2e825041df", kill_on_drop: false }` [INFO] [stderr] Compiling num-bigint v0.2.6 [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Checking rand_xoshiro v0.4.0 [INFO] [stderr] Checking bitmaps v2.1.0 [INFO] [stderr] Checking csv-core v0.1.11 [INFO] [stderr] Compiling im-rc v14.3.0 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling im v14.3.0 [INFO] [stderr] Checking half v1.8.3 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking criterion-plot v0.4.5 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking pvec v0.2.1 (/opt/rustwide/workdir) [INFO] [stderr] Checking serde_cbor v0.11.2 [INFO] [stderr] Checking csv v1.3.0 [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/core/rrbtree/mod.rs:1344:21 [INFO] [stdout] | [INFO] [stdout] 1344 | let mut branch = SharedPtr::make_mut(right_root.as_mut_relaxed_branch()); [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] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/core/mod.rs:141:21 [INFO] [stdout] | [INFO] [stdout] 141 | mem::replace(&mut self.tail, new_tail); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 211 | impl_vec!(RbVec); [INFO] [stdout] | ---------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this warning originates in the macro `impl_vec` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 141 | let _ = mem::replace(&mut self.tail, new_tail); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/core/mod.rs:141:21 [INFO] [stdout] | [INFO] [stdout] 141 | mem::replace(&mut self.tail, new_tail); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 212 | impl_vec!(RrbVec); [INFO] [stdout] | ----------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: this warning originates in the macro `impl_vec` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 141 | let _ = mem::replace(&mut self.tail, new_tail); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking sized-chunks v0.5.3 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Checking plotters v0.3.5 [INFO] [stderr] Checking num-iter v0.1.44 [INFO] [stderr] Checking criterion v0.3.6 [INFO] [stderr] Checking num v0.2.1 [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/core/rrbtree/mod.rs:1344:21 [INFO] [stdout] | [INFO] [stdout] 1344 | let mut branch = SharedPtr::make_mut(right_root.as_mut_relaxed_branch()); [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] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/core/mod.rs:141:21 [INFO] [stdout] | [INFO] [stdout] 141 | mem::replace(&mut self.tail, new_tail); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 211 | impl_vec!(RbVec); [INFO] [stdout] | ---------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this warning originates in the macro `impl_vec` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 141 | let _ = mem::replace(&mut self.tail, new_tail); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/core/mod.rs:141:21 [INFO] [stdout] | [INFO] [stdout] 141 | mem::replace(&mut self.tail, new_tail); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 212 | impl_vec!(RrbVec); [INFO] [stdout] | ----------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: this warning originates in the macro `impl_vec` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 141 | let _ = mem::replace(&mut self.tail, new_tail); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.36s [INFO] running `Command { std: "docker" "inspect" "87b3a53f88b4255fcaba809cdffb2c2605959d6c19c1e70c09889f2e825041df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "87b3a53f88b4255fcaba809cdffb2c2605959d6c19c1e70c09889f2e825041df", kill_on_drop: false }` [INFO] [stdout] 87b3a53f88b4255fcaba809cdffb2c2605959d6c19c1e70c09889f2e825041df [INFO] checking pvec-0.2.1 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] extracting crate pvec 0.2.1 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate pvec 0.2.1 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate pvec 0.2.1 [INFO] finished tweaking crates.io crate pvec 0.2.1 [INFO] tweaked toml for crates.io crate pvec 0.2.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b1cbadf0341de66ad11d801f16ae3ec2f6a75d0830aaff3fb8cebd1e819762da [INFO] running `Command { std: "docker" "start" "-a" "b1cbadf0341de66ad11d801f16ae3ec2f6a75d0830aaff3fb8cebd1e819762da", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b1cbadf0341de66ad11d801f16ae3ec2f6a75d0830aaff3fb8cebd1e819762da", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b1cbadf0341de66ad11d801f16ae3ec2f6a75d0830aaff3fb8cebd1e819762da", kill_on_drop: false }` [INFO] [stdout] b1cbadf0341de66ad11d801f16ae3ec2f6a75d0830aaff3fb8cebd1e819762da [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d83ec18e7e8426ac2dc47e7bd8f2c40f2580fa69572f358677cedf6ee8abbfb4 [INFO] running `Command { std: "docker" "start" "-a" "d83ec18e7e8426ac2dc47e7bd8f2c40f2580fa69572f358677cedf6ee8abbfb4", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Compiling num-bigint v0.2.6 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Checking rand_xoshiro v0.4.0 [INFO] [stderr] Checking bitmaps v2.1.0 [INFO] [stderr] Checking csv-core v0.1.11 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling im-rc v14.3.0 [INFO] [stderr] Compiling im v14.3.0 [INFO] [stderr] Checking half v1.8.3 [INFO] [stderr] Checking criterion-plot v0.4.5 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking pvec v0.2.1 (/opt/rustwide/workdir) [INFO] [stderr] Checking csv v1.3.0 [INFO] [stderr] Checking serde_cbor v0.11.2 [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/core/rrbtree/mod.rs:1344:21 [INFO] [stdout] | [INFO] [stdout] 1344 | let mut branch = SharedPtr::make_mut(right_root.as_mut_relaxed_branch()); [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] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/core/mod.rs:141:21 [INFO] [stdout] | [INFO] [stdout] 141 | mem::replace(&mut self.tail, new_tail); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 211 | impl_vec!(RbVec); [INFO] [stdout] | ---------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this warning originates in the macro `impl_vec` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 141 | let _ = mem::replace(&mut self.tail, new_tail); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/core/mod.rs:141:21 [INFO] [stdout] | [INFO] [stdout] 141 | mem::replace(&mut self.tail, new_tail); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 212 | impl_vec!(RrbVec); [INFO] [stdout] | ----------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: this warning originates in the macro `impl_vec` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 141 | let _ = mem::replace(&mut self.tail, new_tail); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking sized-chunks v0.5.3 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Checking plotters v0.3.5 [INFO] [stderr] Checking num-iter v0.1.44 [INFO] [stderr] Checking criterion v0.3.6 [INFO] [stderr] Checking num v0.2.1 [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/core/rrbtree/mod.rs:1344:21 [INFO] [stdout] | [INFO] [stdout] 1344 | let mut branch = SharedPtr::make_mut(right_root.as_mut_relaxed_branch()); [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] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/core/mod.rs:141:21 [INFO] [stdout] | [INFO] [stdout] 141 | mem::replace(&mut self.tail, new_tail); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 211 | impl_vec!(RbVec); [INFO] [stdout] | ---------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this warning originates in the macro `impl_vec` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 141 | let _ = mem::replace(&mut self.tail, new_tail); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/core/mod.rs:141:21 [INFO] [stdout] | [INFO] [stdout] 141 | mem::replace(&mut self.tail, new_tail); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 212 | impl_vec!(RrbVec); [INFO] [stdout] | ----------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: this warning originates in the macro `impl_vec` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 141 | let _ = mem::replace(&mut self.tail, new_tail); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.83s [INFO] running `Command { std: "docker" "inspect" "d83ec18e7e8426ac2dc47e7bd8f2c40f2580fa69572f358677cedf6ee8abbfb4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d83ec18e7e8426ac2dc47e7bd8f2c40f2580fa69572f358677cedf6ee8abbfb4", kill_on_drop: false }` [INFO] [stdout] d83ec18e7e8426ac2dc47e7bd8f2c40f2580fa69572f358677cedf6ee8abbfb4