[INFO] cloning repository https://github.com/thunderseethe/type-inference-example [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thunderseethe/type-inference-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthunderseethe%2Ftype-inference-example", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthunderseethe%2Ftype-inference-example'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 821034045d1bee915c0dc39d01afcf958553d41a [INFO] checking thunderseethe/type-inference-example against try#901e6d56697c79b2e80df6a487b2318ec6f57ee3 for pr-142287 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthunderseethe%2Ftype-inference-example" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/thunderseethe/type-inference-example on toolchain 901e6d56697c79b2e80df6a487b2318ec6f57ee3 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/thunderseethe/type-inference-example [INFO] finished tweaking git repo https://github.com/thunderseethe/type-inference-example [INFO] tweaked toml for git repo https://github.com/thunderseethe/type-inference-example written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/thunderseethe/type-inference-example 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" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] adaf3796bdc424cbeb3c1e325d23712db7f3d8b69bede960caa468df6c4d76d2 [INFO] running `Command { std: "docker" "start" "-a" "adaf3796bdc424cbeb3c1e325d23712db7f3d8b69bede960caa468df6c4d76d2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "adaf3796bdc424cbeb3c1e325d23712db7f3d8b69bede960caa468df6c4d76d2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "adaf3796bdc424cbeb3c1e325d23712db7f3d8b69bede960caa468df6c4d76d2", kill_on_drop: false }` [INFO] [stdout] adaf3796bdc424cbeb3c1e325d23712db7f3d8b69bede960caa468df6c4d76d2 [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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e6de35902b0129d055a00baddda6a044864de282384983d20c9c324f61066cd3 [INFO] running `Command { std: "docker" "start" "-a" "e6de35902b0129d055a00baddda6a044864de282384983d20c9c324f61066cd3", kill_on_drop: false }` [INFO] [stderr] Compiling typenum v1.18.0 [INFO] [stderr] Compiling im v15.1.0 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking log v0.4.26 [INFO] [stderr] Checking arrayvec v0.5.2 [INFO] [stderr] Checking unicode-width v0.1.14 [INFO] [stderr] Checking typed-arena v2.0.2 [INFO] [stderr] Checking once_cell v1.20.3 [INFO] [stderr] Checking dissimilar v1.0.9 [INFO] [stderr] Checking diff v0.1.13 [INFO] [stderr] Checking yansi v1.0.1 [INFO] [stderr] Checking type-inference v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking rand_xoshiro v0.6.0 [INFO] [stderr] Checking ena v0.14.3 [INFO] [stderr] Checking pretty v0.12.3 [INFO] [stderr] Checking expect-test v1.5.1 [INFO] [stderr] Checking pretty_assertions v1.4.1 [INFO] [stdout] error[E0515]: cannot return value referencing temporary value [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pretty-0.12.3/src/lib.rs:1679:9 [INFO] [stdout] | [INFO] [stdout] 1679 | / RefDoc(match doc { [INFO] [stdout] 1680 | | // Return 'static references for common variants to avoid some allocations [INFO] [stdout] 1681 | | Doc::Nil => &Doc::Nil, [INFO] [stdout] | | -------- temporary value created here [INFO] [stdout] 1682 | | Doc::Hardline => &Doc::Hardline, [INFO] [stdout] ... | [INFO] [stdout] 1707 | | _ => self.docs.alloc(doc), [INFO] [stdout] 1708 | | }) [INFO] [stdout] | |__________^ returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing temporary value [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pretty-0.12.3/src/lib.rs:1679:9 [INFO] [stdout] | [INFO] [stdout] 1679 | / RefDoc(match doc { [INFO] [stdout] 1680 | | // Return 'static references for common variants to avoid some allocations [INFO] [stdout] 1681 | | Doc::Nil => &Doc::Nil, [INFO] [stdout] 1682 | | Doc::Hardline => &Doc::Hardline, [INFO] [stdout] | | ------------- temporary value created here [INFO] [stdout] ... | [INFO] [stdout] 1707 | | _ => self.docs.alloc(doc), [INFO] [stdout] 1708 | | }) [INFO] [stdout] | |__________^ returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing temporary value [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pretty-0.12.3/src/lib.rs:1679:9 [INFO] [stdout] | [INFO] [stdout] 1679 | / RefDoc(match doc { [INFO] [stdout] 1680 | | // Return 'static references for common variants to avoid some allocations [INFO] [stdout] 1681 | | Doc::Nil => &Doc::Nil, [INFO] [stdout] 1682 | | Doc::Hardline => &Doc::Hardline, [INFO] [stdout] 1683 | | Doc::Fail => &Doc::Fail, [INFO] [stdout] | | --------- temporary value created here [INFO] [stdout] ... | [INFO] [stdout] 1707 | | _ => self.docs.alloc(doc), [INFO] [stdout] 1708 | | }) [INFO] [stdout] | |__________^ returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing temporary value [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pretty-0.12.3/src/lib.rs:1679:9 [INFO] [stdout] | [INFO] [stdout] 1679 | / RefDoc(match doc { [INFO] [stdout] 1680 | | // Return 'static references for common variants to avoid some allocations [INFO] [stdout] 1681 | | Doc::Nil => &Doc::Nil, [INFO] [stdout] 1682 | | Doc::Hardline => &Doc::Hardline, [INFO] [stdout] ... | [INFO] [stdout] 1686 | | &Doc::FlatAlt(RefDoc(&Doc::Hardline), RefDoc(&Doc::BorrowedText(" "))) [INFO] [stdout] | | --------------------------------------------------------------------- temporary value created here [INFO] [stdout] ... | [INFO] [stdout] 1707 | | _ => self.docs.alloc(doc), [INFO] [stdout] 1708 | | }) [INFO] [stdout] | |__________^ returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing temporary value [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pretty-0.12.3/src/lib.rs:1679:9 [INFO] [stdout] | [INFO] [stdout] 1679 | / RefDoc(match doc { [INFO] [stdout] 1680 | | // Return 'static references for common variants to avoid some allocations [INFO] [stdout] 1681 | | Doc::Nil => &Doc::Nil, [INFO] [stdout] 1682 | | Doc::Hardline => &Doc::Hardline, [INFO] [stdout] ... | [INFO] [stdout] 1686 | | &Doc::FlatAlt(RefDoc(&Doc::Hardline), RefDoc(&Doc::BorrowedText(" "))) [INFO] [stdout] | | ---------------------- temporary value created here [INFO] [stdout] ... | [INFO] [stdout] 1707 | | _ => self.docs.alloc(doc), [INFO] [stdout] 1708 | | }) [INFO] [stdout] | |__________^ returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing temporary value [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pretty-0.12.3/src/lib.rs:1679:9 [INFO] [stdout] | [INFO] [stdout] 1679 | / RefDoc(match doc { [INFO] [stdout] 1680 | | // Return 'static references for common variants to avoid some allocations [INFO] [stdout] 1681 | | Doc::Nil => &Doc::Nil, [INFO] [stdout] 1682 | | Doc::Hardline => &Doc::Hardline, [INFO] [stdout] ... | [INFO] [stdout] 1686 | | &Doc::FlatAlt(RefDoc(&Doc::Hardline), RefDoc(&Doc::BorrowedText(" "))) [INFO] [stdout] | | ------------- temporary value created here [INFO] [stdout] ... | [INFO] [stdout] 1707 | | _ => self.docs.alloc(doc), [INFO] [stdout] 1708 | | }) [INFO] [stdout] | |__________^ returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing temporary value [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pretty-0.12.3/src/lib.rs:1679:9 [INFO] [stdout] | [INFO] [stdout] 1679 | / RefDoc(match doc { [INFO] [stdout] 1680 | | // Return 'static references for common variants to avoid some allocations [INFO] [stdout] 1681 | | Doc::Nil => &Doc::Nil, [INFO] [stdout] 1682 | | Doc::Hardline => &Doc::Hardline, [INFO] [stdout] ... | [INFO] [stdout] 1690 | | &Doc::FlatAlt(RefDoc(&Doc::Hardline), RefDoc(&Doc::Nil)) [INFO] [stdout] | | ------------------------------------------------------- temporary value created here [INFO] [stdout] ... | [INFO] [stdout] 1707 | | _ => self.docs.alloc(doc), [INFO] [stdout] 1708 | | }) [INFO] [stdout] | |__________^ returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing temporary value [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pretty-0.12.3/src/lib.rs:1679:9 [INFO] [stdout] | [INFO] [stdout] 1679 | / RefDoc(match doc { [INFO] [stdout] 1680 | | // Return 'static references for common variants to avoid some allocations [INFO] [stdout] 1681 | | Doc::Nil => &Doc::Nil, [INFO] [stdout] 1682 | | Doc::Hardline => &Doc::Hardline, [INFO] [stdout] ... | [INFO] [stdout] 1690 | | &Doc::FlatAlt(RefDoc(&Doc::Hardline), RefDoc(&Doc::Nil)) [INFO] [stdout] | | -------- temporary value created here [INFO] [stdout] ... | [INFO] [stdout] 1707 | | _ => self.docs.alloc(doc), [INFO] [stdout] 1708 | | }) [INFO] [stdout] | |__________^ returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing temporary value [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pretty-0.12.3/src/lib.rs:1679:9 [INFO] [stdout] | [INFO] [stdout] 1679 | / RefDoc(match doc { [INFO] [stdout] 1680 | | // Return 'static references for common variants to avoid some allocations [INFO] [stdout] 1681 | | Doc::Nil => &Doc::Nil, [INFO] [stdout] 1682 | | Doc::Hardline => &Doc::Hardline, [INFO] [stdout] ... | [INFO] [stdout] 1690 | | &Doc::FlatAlt(RefDoc(&Doc::Hardline), RefDoc(&Doc::Nil)) [INFO] [stdout] | | ------------- temporary value created here [INFO] [stdout] ... | [INFO] [stdout] 1707 | | _ => self.docs.alloc(doc), [INFO] [stdout] 1708 | | }) [INFO] [stdout] | |__________^ returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing temporary value [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pretty-0.12.3/src/lib.rs:1679:9 [INFO] [stdout] | [INFO] [stdout] 1679 | / RefDoc(match doc { [INFO] [stdout] 1680 | | // Return 'static references for common variants to avoid some allocations [INFO] [stdout] 1681 | | Doc::Nil => &Doc::Nil, [INFO] [stdout] 1682 | | Doc::Hardline => &Doc::Hardline, [INFO] [stdout] ... | [INFO] [stdout] 1696 | | ))) => &Doc::Group(RefDoc(&Doc::FlatAlt( [INFO] [stdout] | | _____________________- [INFO] [stdout] 1697 | || RefDoc(&Doc::Hardline), [INFO] [stdout] 1698 | || RefDoc(&Doc::BorrowedText(" ")), [INFO] [stdout] 1699 | || ))), [INFO] [stdout] | ||_______________- temporary value created here [INFO] [stdout] ... | [INFO] [stdout] 1707 | | _ => self.docs.alloc(doc), [INFO] [stdout] 1708 | | }) [INFO] [stdout] | |___________^ returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing temporary value [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pretty-0.12.3/src/lib.rs:1679:9 [INFO] [stdout] | [INFO] [stdout] 1679 | / RefDoc(match doc { [INFO] [stdout] 1680 | | // Return 'static references for common variants to avoid some allocations [INFO] [stdout] 1681 | | Doc::Nil => &Doc::Nil, [INFO] [stdout] 1682 | | Doc::Hardline => &Doc::Hardline, [INFO] [stdout] ... | [INFO] [stdout] 1696 | | ))) => &Doc::Group(RefDoc(&Doc::FlatAlt( [INFO] [stdout] | | ________________________________________- [INFO] [stdout] 1697 | || RefDoc(&Doc::Hardline), [INFO] [stdout] 1698 | || RefDoc(&Doc::BorrowedText(" ")), [INFO] [stdout] 1699 | || ))), [INFO] [stdout] | ||_____________- temporary value created here [INFO] [stdout] ... | [INFO] [stdout] 1707 | | _ => self.docs.alloc(doc), [INFO] [stdout] 1708 | | }) [INFO] [stdout] | |___________^ returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing temporary value [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pretty-0.12.3/src/lib.rs:1679:9 [INFO] [stdout] | [INFO] [stdout] 1679 | / RefDoc(match doc { [INFO] [stdout] 1680 | | // Return 'static references for common variants to avoid some allocations [INFO] [stdout] 1681 | | Doc::Nil => &Doc::Nil, [INFO] [stdout] 1682 | | Doc::Hardline => &Doc::Hardline, [INFO] [stdout] ... | [INFO] [stdout] 1698 | | RefDoc(&Doc::BorrowedText(" ")), [INFO] [stdout] | | ---------------------- temporary value created here [INFO] [stdout] ... | [INFO] [stdout] 1707 | | _ => self.docs.alloc(doc), [INFO] [stdout] 1708 | | }) [INFO] [stdout] | |__________^ returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing temporary value [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pretty-0.12.3/src/lib.rs:1679:9 [INFO] [stdout] | [INFO] [stdout] 1679 | / RefDoc(match doc { [INFO] [stdout] 1680 | | // Return 'static references for common variants to avoid some allocations [INFO] [stdout] 1681 | | Doc::Nil => &Doc::Nil, [INFO] [stdout] 1682 | | Doc::Hardline => &Doc::Hardline, [INFO] [stdout] ... | [INFO] [stdout] 1697 | | RefDoc(&Doc::Hardline), [INFO] [stdout] | | ------------- temporary value created here [INFO] [stdout] ... | [INFO] [stdout] 1707 | | _ => self.docs.alloc(doc), [INFO] [stdout] 1708 | | }) [INFO] [stdout] | |__________^ returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing temporary value [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pretty-0.12.3/src/lib.rs:1679:9 [INFO] [stdout] | [INFO] [stdout] 1679 | / RefDoc(match doc { [INFO] [stdout] 1680 | | // Return 'static references for common variants to avoid some allocations [INFO] [stdout] 1681 | | Doc::Nil => &Doc::Nil, [INFO] [stdout] 1682 | | Doc::Hardline => &Doc::Hardline, [INFO] [stdout] ... | [INFO] [stdout] 1702 | | &Doc::Group(RefDoc(&Doc::FlatAlt( [INFO] [stdout] | | __________________- [INFO] [stdout] 1703 | || RefDoc(&Doc::Hardline), [INFO] [stdout] 1704 | || RefDoc(&Doc::Nil), [INFO] [stdout] 1705 | || ))) [INFO] [stdout] | ||___________________- temporary value created here [INFO] [stdout] 1706 | | } [INFO] [stdout] 1707 | | _ => self.docs.alloc(doc), [INFO] [stdout] 1708 | | }) [INFO] [stdout] | |___________^ returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing temporary value [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pretty-0.12.3/src/lib.rs:1679:9 [INFO] [stdout] | [INFO] [stdout] 1679 | / RefDoc(match doc { [INFO] [stdout] 1680 | | // Return 'static references for common variants to avoid some allocations [INFO] [stdout] 1681 | | Doc::Nil => &Doc::Nil, [INFO] [stdout] 1682 | | Doc::Hardline => &Doc::Hardline, [INFO] [stdout] ... | [INFO] [stdout] 1702 | | &Doc::Group(RefDoc(&Doc::FlatAlt( [INFO] [stdout] | | _____________________________________- [INFO] [stdout] 1703 | || RefDoc(&Doc::Hardline), [INFO] [stdout] 1704 | || RefDoc(&Doc::Nil), [INFO] [stdout] 1705 | || ))) [INFO] [stdout] | ||_________________- temporary value created here [INFO] [stdout] 1706 | | } [INFO] [stdout] 1707 | | _ => self.docs.alloc(doc), [INFO] [stdout] 1708 | | }) [INFO] [stdout] | |___________^ returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing temporary value [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pretty-0.12.3/src/lib.rs:1679:9 [INFO] [stdout] | [INFO] [stdout] 1679 | / RefDoc(match doc { [INFO] [stdout] 1680 | | // Return 'static references for common variants to avoid some allocations [INFO] [stdout] 1681 | | Doc::Nil => &Doc::Nil, [INFO] [stdout] 1682 | | Doc::Hardline => &Doc::Hardline, [INFO] [stdout] ... | [INFO] [stdout] 1704 | | RefDoc(&Doc::Nil), [INFO] [stdout] | | -------- temporary value created here [INFO] [stdout] ... | [INFO] [stdout] 1707 | | _ => self.docs.alloc(doc), [INFO] [stdout] 1708 | | }) [INFO] [stdout] | |__________^ returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return value referencing temporary value [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pretty-0.12.3/src/lib.rs:1679:9 [INFO] [stdout] | [INFO] [stdout] 1679 | / RefDoc(match doc { [INFO] [stdout] 1680 | | // Return 'static references for common variants to avoid some allocations [INFO] [stdout] 1681 | | Doc::Nil => &Doc::Nil, [INFO] [stdout] 1682 | | Doc::Hardline => &Doc::Hardline, [INFO] [stdout] ... | [INFO] [stdout] 1703 | | RefDoc(&Doc::Hardline), [INFO] [stdout] | | ------------- temporary value created here [INFO] [stdout] ... | [INFO] [stdout] 1707 | | _ => self.docs.alloc(doc), [INFO] [stdout] 1708 | | }) [INFO] [stdout] | |__________^ returns a value referencing data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0515`. [INFO] [stdout] [INFO] [stderr] error: could not compile `pretty` (lib) due to 17 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "e6de35902b0129d055a00baddda6a044864de282384983d20c9c324f61066cd3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e6de35902b0129d055a00baddda6a044864de282384983d20c9c324f61066cd3", kill_on_drop: false }` [INFO] [stdout] e6de35902b0129d055a00baddda6a044864de282384983d20c9c324f61066cd3