[INFO] fetching crate algorithms_fourth 0.1.10... [INFO] checking algorithms_fourth-0.1.10 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1 [INFO] extracting crate algorithms_fourth 0.1.10 into /workspace/builds/worker-0-tc2/source [INFO] started tweaking crates.io crate algorithms_fourth 0.1.10 [INFO] finished tweaking crates.io crate algorithms_fourth 0.1.10 [INFO] tweaked toml for crates.io crate algorithms_fourth 0.1.10 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate algorithms_fourth 0.1.10 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate algorithms_fourth 0.1.10 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0ea8df7b4629498260b201656778a342c5497526fc8853325c4c92c2ceca600f [INFO] running `Command { std: "docker" "start" "-a" "0ea8df7b4629498260b201656778a342c5497526fc8853325c4c92c2ceca600f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0ea8df7b4629498260b201656778a342c5497526fc8853325c4c92c2ceca600f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0ea8df7b4629498260b201656778a342c5497526fc8853325c4c92c2ceca600f", kill_on_drop: false }` [INFO] [stdout] 0ea8df7b4629498260b201656778a342c5497526fc8853325c4c92c2ceca600f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d405cbf2e0cf7c2bd048b9bedf85d643a5a6c838eeb6bf4d4fc7aaca09d65ad4 [INFO] running `Command { std: "docker" "start" "-a" "d405cbf2e0cf7c2bd048b9bedf85d643a5a6c838eeb6bf4d4fc7aaca09d65ad4", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.140 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking ppv-lite86 v0.2.17 [INFO] [stderr] Checking getrandom v0.2.8 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking algorithms_fourth v0.1.10 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/search/sequential.rs:58:25 [INFO] [stdout] | [INFO] [stdout] 58 | let mut p = first; [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: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/search/red_black_search/trace.rs:40:11 [INFO] [stdout] | [INFO] [stdout] 40 | node: &Node, [INFO] [stdout] | ^^^^^^^^^^^ the lifetime is elided here [INFO] [stdout] ... [INFO] [stdout] 45 | ) -> Element { [INFO] [stdout] | ------------- the same lifetime is hidden 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] 45 | ) -> Element<'_, K, V> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/digraph/cycle.rs:75:18 [INFO] [stdout] | [INFO] [stdout] 75 | pub fn cycle(&self) -> Iter { [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] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 75 | pub fn cycle(&self) -> Iter<'_, usize> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/graph/edge_weighted/mst/prim.rs:126:18 [INFO] [stdout] | [INFO] [stdout] 126 | pub fn edges(&self) -> std::slice::Iter<&Edge> { [INFO] [stdout] | ^^^^^ ----------------------- [INFO] [stdout] | | | | [INFO] [stdout] | | | the same lifetime is elided here [INFO] [stdout] | | the same lifetime is hidden here [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] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 126 | pub fn edges(&self) -> std::slice::Iter<'_, &Edge> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/search/sequential.rs:58:25 [INFO] [stdout] | [INFO] [stdout] 58 | let mut p = first; [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: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/search/red_black_search/trace.rs:40:11 [INFO] [stdout] | [INFO] [stdout] 40 | node: &Node, [INFO] [stdout] | ^^^^^^^^^^^ the lifetime is elided here [INFO] [stdout] ... [INFO] [stdout] 45 | ) -> Element { [INFO] [stdout] | ------------- the same lifetime is hidden 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] 45 | ) -> Element<'_, K, V> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/digraph/cycle.rs:75:18 [INFO] [stdout] | [INFO] [stdout] 75 | pub fn cycle(&self) -> Iter { [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] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 75 | pub fn cycle(&self) -> Iter<'_, usize> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/graph/edge_weighted/mst/prim.rs:126:18 [INFO] [stdout] | [INFO] [stdout] 126 | pub fn edges(&self) -> std::slice::Iter<&Edge> { [INFO] [stdout] | ^^^^^ ----------------------- [INFO] [stdout] | | | | [INFO] [stdout] | | | the same lifetime is elided here [INFO] [stdout] | | the same lifetime is hidden here [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] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 126 | pub fn edges(&self) -> std::slice::Iter<'_, &Edge> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.13s [INFO] running `Command { std: "docker" "inspect" "d405cbf2e0cf7c2bd048b9bedf85d643a5a6c838eeb6bf4d4fc7aaca09d65ad4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d405cbf2e0cf7c2bd048b9bedf85d643a5a6c838eeb6bf4d4fc7aaca09d65ad4", kill_on_drop: false }` [INFO] [stdout] d405cbf2e0cf7c2bd048b9bedf85d643a5a6c838eeb6bf4d4fc7aaca09d65ad4