[INFO] fetching crate pvec 0.2.1... [INFO] checking pvec-0.2.1 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate pvec 0.2.1 into /workspace/builds/worker-7-tc2/source [INFO] validating manifest of crates.io crate pvec 0.2.1 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "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-7-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 98 packages to latest compatible versions [INFO] [stderr] Adding autocfg v0.1.8 (available: v1.4.0) [INFO] [stderr] Adding bitflags v1.3.2 (available: v2.6.0) [INFO] [stderr] Adding bitmaps v2.1.0 (available: v3.2.1) [INFO] [stderr] Adding clap v2.34.0 (available: v4.5.18) [INFO] [stderr] Adding cloudabi v0.0.3 (available: v0.1.0) [INFO] [stderr] Adding criterion v0.3.6 (available: v0.5.1) [INFO] [stderr] Adding criterion-plot v0.4.5 (available: v0.5.0) [INFO] [stderr] Adding half v1.8.3 (available: v2.4.1) [INFO] [stderr] Adding hermit-abi v0.1.19 (available: v0.4.0) [INFO] [stderr] Adding im v14.3.0 (available: v15.1.0) [INFO] [stderr] Adding im-rc v14.3.0 (available: v15.1.0) [INFO] [stderr] Adding itertools v0.10.5 (available: v0.13.0) [INFO] [stderr] Adding num v0.2.1 (available: v0.4.3) [INFO] [stderr] Adding num-bigint v0.2.6 (available: v0.4.6) [INFO] [stderr] Adding num-complex v0.2.4 (available: v0.4.6) [INFO] [stderr] Adding num-rational v0.2.4 (available: v0.4.2) [INFO] [stderr] Adding rand v0.6.5 (available: v0.8.5) [INFO] [stderr] Adding rand_chacha v0.1.1 (available: v0.3.1) [INFO] [stderr] Adding rand_core v0.3.1 (available: v0.6.4) [INFO] [stderr] Adding rand_core v0.4.2 (available: v0.6.4) [INFO] [stderr] Adding rand_core v0.5.1 (available: v0.6.4) [INFO] [stderr] Adding rand_hc v0.1.0 (available: v0.3.2) [INFO] [stderr] Adding rand_isaac v0.1.1 (available: v0.3.0) [INFO] [stderr] Adding rand_jitter v0.1.4 (available: v0.4.0) [INFO] [stderr] Adding rand_os v0.1.3 (available: v0.2.2) [INFO] [stderr] Adding rand_pcg v0.1.2 (available: v0.3.1) [INFO] [stderr] Adding rand_xorshift v0.1.1 (available: v0.3.0) [INFO] [stderr] Adding rand_xoshiro v0.4.0 (available: v0.6.0) [INFO] [stderr] Adding rdrand v0.4.0 (available: v0.8.3) [INFO] [stderr] Adding sized-chunks v0.5.3 (available: v0.7.0) [INFO] [stderr] Adding textwrap v0.11.0 (available: v0.16.1) [INFO] [stderr] Adding unicode-width v0.1.14 (available: v0.2.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c87e541b48f22f2e6e46aecee0ddf55590e6800da7f42604fe3f091d1dc919e6 [INFO] running `Command { std: "docker" "start" "-a" "c87e541b48f22f2e6e46aecee0ddf55590e6800da7f42604fe3f091d1dc919e6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c87e541b48f22f2e6e46aecee0ddf55590e6800da7f42604fe3f091d1dc919e6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c87e541b48f22f2e6e46aecee0ddf55590e6800da7f42604fe3f091d1dc919e6", kill_on_drop: false }` [INFO] [stdout] c87e541b48f22f2e6e46aecee0ddf55590e6800da7f42604fe3f091d1dc919e6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail_expr_drop_order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 30a51a6740ac5ca88f9fbeeee9fa129711fc84146007e900db275244f831e767 [INFO] running `Command { std: "docker" "start" "-a" "30a51a6740ac5ca88f9fbeeee9fa129711fc84146007e900db275244f831e767", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.4.0 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Compiling crossbeam-utils v0.8.20 [INFO] [stderr] Compiling version_check v0.9.5 [INFO] [stderr] Checking memchr v2.7.4 [INFO] [stderr] Checking ryu v1.0.18 [INFO] [stderr] Compiling rayon-core v1.12.1 [INFO] [stderr] Checking itoa v1.0.11 [INFO] [stderr] Compiling serde_json v1.0.128 [INFO] [stderr] Checking either v1.13.0 [INFO] [stderr] Checking plotters-backend v0.3.7 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking bitmaps v2.1.0 [INFO] [stderr] Checking regex-syntax v0.8.4 [INFO] [stderr] Compiling syn v2.0.79 [INFO] [stderr] Checking half v1.8.3 [INFO] [stderr] Checking cast v0.3.0 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Compiling autocfg v0.1.8 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking rand_xoshiro v0.4.0 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Compiling im v14.3.0 [INFO] [stderr] Compiling im-rc v14.3.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking plotters-svg v0.3.7 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking serde_cbor v0.11.2 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking walkdir v2.5.0 [INFO] [stderr] Checking oorandom v11.1.4 [INFO] [stderr] Checking pvec v0.2.1 (/opt/rustwide/workdir) [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling num-bigint v0.2.6 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Checking csv-core v0.1.11 [INFO] [stderr] Checking sized-chunks v0.5.3 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking csv v1.3.0 [INFO] [stderr] Checking crossbeam-epoch v0.9.18 [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 crossbeam-deque v0.8.5 [INFO] [stderr] Checking regex-automata v0.4.7 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Checking plotters v0.3.7 [INFO] [stderr] Checking rayon v1.10.0 [INFO] [stderr] Checking criterion-plot v0.4.5 [INFO] [stderr] Checking num-iter v0.1.45 [INFO] [stderr] Checking regex v1.10.6 [INFO] [stderr] Checking num v0.2.1 [INFO] [stderr] Compiling serde_derive v1.0.210 [INFO] [stderr] Checking criterion v0.3.6 [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: missing documentation for a constant [INFO] [stdout] --> src/iter.rs:12:1 [INFO] [stdout] | [INFO] [stdout] 12 | pub const BRANCH_FACTOR: usize = 32; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 42 | #![warn(missing_docs)] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.77s [INFO] running `Command { std: "docker" "inspect" "30a51a6740ac5ca88f9fbeeee9fa129711fc84146007e900db275244f831e767", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "30a51a6740ac5ca88f9fbeeee9fa129711fc84146007e900db275244f831e767", kill_on_drop: false }` [INFO] [stdout] 30a51a6740ac5ca88f9fbeeee9fa129711fc84146007e900db275244f831e767