[INFO] cloning repository https://github.com/wasabi315/stg-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wasabi315/stg-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwasabi315%2Fstg-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwasabi315%2Fstg-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0084804a1ae86ecd9ce1b895370ddd6f8035b5b9
[INFO] checking wasabi315/stg-rs against try#901e6d56697c79b2e80df6a487b2318ec6f57ee3 for pr-142287
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwasabi315%2Fstg-rs" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wasabi315/stg-rs 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/wasabi315/stg-rs
[INFO] finished tweaking git repo https://github.com/wasabi315/stg-rs
[INFO] tweaked toml for git repo https://github.com/wasabi315/stg-rs written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/wasabi315/stg-rs 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-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f68b30cae0272fcd4fef39b441ef1ad15f0376f0b910cbccace7b37accc138dc
[INFO] running `Command { std: "docker" "start" "-a" "f68b30cae0272fcd4fef39b441ef1ad15f0376f0b910cbccace7b37accc138dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f68b30cae0272fcd4fef39b441ef1ad15f0376f0b910cbccace7b37accc138dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f68b30cae0272fcd4fef39b441ef1ad15f0376f0b910cbccace7b37accc138dc", kill_on_drop: false }`
[INFO] [stdout] f68b30cae0272fcd4fef39b441ef1ad15f0376f0b910cbccace7b37accc138dc
[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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65a0dc95cd8895c2ba59c2221a981707bc9a30ed66f596df73fcf887d80f0a1a
[INFO] running `Command { std: "docker" "start" "-a" "65a0dc95cd8895c2ba59c2221a981707bc9a30ed66f596df73fcf887d80f0a1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.68
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking typed-arena v2.0.1
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking pretty v0.10.0
[INFO] [stdout] error[E0515]: cannot return value referencing temporary value
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pretty-0.10.0/src/lib.rs:1317:9
[INFO] [stdout]      |
[INFO] [stdout] 1317 | /         RefDoc(match doc {
[INFO] [stdout] 1318 | |             // Return 'static references for common variants to avoid some allocations
[INFO] [stdout] 1319 | |             Doc::Nil => &Doc::Nil,
[INFO] [stdout]      | |                          -------- temporary value created here
[INFO] [stdout] 1320 | |             Doc::Line => &Doc::Line,
[INFO] [stdout] ...    |
[INFO] [stdout] 1341 | |             _ => self.docs.alloc(doc),
[INFO] [stdout] 1342 | |         })
[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-0.10.0/src/lib.rs:1317:9
[INFO] [stdout]      |
[INFO] [stdout] 1317 | /         RefDoc(match doc {
[INFO] [stdout] 1318 | |             // Return 'static references for common variants to avoid some allocations
[INFO] [stdout] 1319 | |             Doc::Nil => &Doc::Nil,
[INFO] [stdout] 1320 | |             Doc::Line => &Doc::Line,
[INFO] [stdout]      | |                           --------- temporary value created here
[INFO] [stdout] ...    |
[INFO] [stdout] 1341 | |             _ => self.docs.alloc(doc),
[INFO] [stdout] 1342 | |         })
[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-0.10.0/src/lib.rs:1317:9
[INFO] [stdout]      |
[INFO] [stdout] 1317 | /         RefDoc(match doc {
[INFO] [stdout] 1318 | |             // Return 'static references for common variants to avoid some allocations
[INFO] [stdout] 1319 | |             Doc::Nil => &Doc::Nil,
[INFO] [stdout] 1320 | |             Doc::Line => &Doc::Line,
[INFO] [stdout] 1321 | |             Doc::Fail => &Doc::Fail,
[INFO] [stdout]      | |                           --------- temporary value created here
[INFO] [stdout] ...    |
[INFO] [stdout] 1341 | |             _ => self.docs.alloc(doc),
[INFO] [stdout] 1342 | |         })
[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-0.10.0/src/lib.rs:1317:9
[INFO] [stdout]      |
[INFO] [stdout] 1317 | /         RefDoc(match doc {
[INFO] [stdout] 1318 | |             // Return 'static references for common variants to avoid some allocations
[INFO] [stdout] 1319 | |             Doc::Nil => &Doc::Nil,
[INFO] [stdout] 1320 | |             Doc::Line => &Doc::Line,
[INFO] [stdout] ...    |
[INFO] [stdout] 1324 | |                 &Doc::FlatAlt(RefDoc(&Doc::Line), RefDoc(&Doc::BorrowedText(" ")))
[INFO] [stdout]      | |                  ----------------------------------------------------------------- temporary value created here
[INFO] [stdout] ...    |
[INFO] [stdout] 1341 | |             _ => self.docs.alloc(doc),
[INFO] [stdout] 1342 | |         })
[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-0.10.0/src/lib.rs:1317:9
[INFO] [stdout]      |
[INFO] [stdout] 1317 | /         RefDoc(match doc {
[INFO] [stdout] 1318 | |             // Return 'static references for common variants to avoid some allocations
[INFO] [stdout] 1319 | |             Doc::Nil => &Doc::Nil,
[INFO] [stdout] 1320 | |             Doc::Line => &Doc::Line,
[INFO] [stdout] ...    |
[INFO] [stdout] 1324 | |                 &Doc::FlatAlt(RefDoc(&Doc::Line), RefDoc(&Doc::BorrowedText(" ")))
[INFO] [stdout]      | |                                                           ---------------------- temporary value created here
[INFO] [stdout] ...    |
[INFO] [stdout] 1341 | |             _ => self.docs.alloc(doc),
[INFO] [stdout] 1342 | |         })
[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-0.10.0/src/lib.rs:1317:9
[INFO] [stdout]      |
[INFO] [stdout] 1317 | /         RefDoc(match doc {
[INFO] [stdout] 1318 | |             // Return 'static references for common variants to avoid some allocations
[INFO] [stdout] 1319 | |             Doc::Nil => &Doc::Nil,
[INFO] [stdout] 1320 | |             Doc::Line => &Doc::Line,
[INFO] [stdout] ...    |
[INFO] [stdout] 1324 | |                 &Doc::FlatAlt(RefDoc(&Doc::Line), RefDoc(&Doc::BorrowedText(" ")))
[INFO] [stdout]      | |                                       --------- temporary value created here
[INFO] [stdout] ...    |
[INFO] [stdout] 1341 | |             _ => self.docs.alloc(doc),
[INFO] [stdout] 1342 | |         })
[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-0.10.0/src/lib.rs:1317:9
[INFO] [stdout]      |
[INFO] [stdout] 1317 | /         RefDoc(match doc {
[INFO] [stdout] 1318 | |             // Return 'static references for common variants to avoid some allocations
[INFO] [stdout] 1319 | |             Doc::Nil => &Doc::Nil,
[INFO] [stdout] 1320 | |             Doc::Line => &Doc::Line,
[INFO] [stdout] ...    |
[INFO] [stdout] 1328 | |                 &Doc::FlatAlt(RefDoc(&Doc::Line), RefDoc(&Doc::Nil))
[INFO] [stdout]      | |                  --------------------------------------------------- temporary value created here
[INFO] [stdout] ...    |
[INFO] [stdout] 1341 | |             _ => self.docs.alloc(doc),
[INFO] [stdout] 1342 | |         })
[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-0.10.0/src/lib.rs:1317:9
[INFO] [stdout]      |
[INFO] [stdout] 1317 | /         RefDoc(match doc {
[INFO] [stdout] 1318 | |             // Return 'static references for common variants to avoid some allocations
[INFO] [stdout] 1319 | |             Doc::Nil => &Doc::Nil,
[INFO] [stdout] 1320 | |             Doc::Line => &Doc::Line,
[INFO] [stdout] ...    |
[INFO] [stdout] 1328 | |                 &Doc::FlatAlt(RefDoc(&Doc::Line), RefDoc(&Doc::Nil))
[INFO] [stdout]      | |                                                           -------- temporary value created here
[INFO] [stdout] ...    |
[INFO] [stdout] 1341 | |             _ => self.docs.alloc(doc),
[INFO] [stdout] 1342 | |         })
[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-0.10.0/src/lib.rs:1317:9
[INFO] [stdout]      |
[INFO] [stdout] 1317 | /         RefDoc(match doc {
[INFO] [stdout] 1318 | |             // Return 'static references for common variants to avoid some allocations
[INFO] [stdout] 1319 | |             Doc::Nil => &Doc::Nil,
[INFO] [stdout] 1320 | |             Doc::Line => &Doc::Line,
[INFO] [stdout] ...    |
[INFO] [stdout] 1328 | |                 &Doc::FlatAlt(RefDoc(&Doc::Line), RefDoc(&Doc::Nil))
[INFO] [stdout]      | |                                       --------- temporary value created here
[INFO] [stdout] ...    |
[INFO] [stdout] 1341 | |             _ => self.docs.alloc(doc),
[INFO] [stdout] 1342 | |         })
[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-0.10.0/src/lib.rs:1317:9
[INFO] [stdout]      |
[INFO] [stdout] 1317 | /          RefDoc(match doc {
[INFO] [stdout] 1318 | |              // Return 'static references for common variants to avoid some allocations
[INFO] [stdout] 1319 | |              Doc::Nil => &Doc::Nil,
[INFO] [stdout] 1320 | |              Doc::Line => &Doc::Line,
[INFO] [stdout] ...    |
[INFO] [stdout] 1332 | |                  &Doc::Group(RefDoc(&Doc::FlatAlt(
[INFO] [stdout]      | | __________________-
[INFO] [stdout] 1333 | ||                     RefDoc(&Doc::Line),
[INFO] [stdout] 1334 | ||                     RefDoc(&Doc::BorrowedText(" ")),
[INFO] [stdout] 1335 | ||                 )))
[INFO] [stdout]      | ||___________________- temporary value created here
[INFO] [stdout] ...    |
[INFO] [stdout] 1341 | |              _ => self.docs.alloc(doc),
[INFO] [stdout] 1342 | |          })
[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-0.10.0/src/lib.rs:1317:9
[INFO] [stdout]      |
[INFO] [stdout] 1317 | /          RefDoc(match doc {
[INFO] [stdout] 1318 | |              // Return 'static references for common variants to avoid some allocations
[INFO] [stdout] 1319 | |              Doc::Nil => &Doc::Nil,
[INFO] [stdout] 1320 | |              Doc::Line => &Doc::Line,
[INFO] [stdout] ...    |
[INFO] [stdout] 1332 | |                  &Doc::Group(RefDoc(&Doc::FlatAlt(
[INFO] [stdout]      | | _____________________________________-
[INFO] [stdout] 1333 | ||                     RefDoc(&Doc::Line),
[INFO] [stdout] 1334 | ||                     RefDoc(&Doc::BorrowedText(" ")),
[INFO] [stdout] 1335 | ||                 )))
[INFO] [stdout]      | ||_________________- temporary value created here
[INFO] [stdout] ...    |
[INFO] [stdout] 1341 | |              _ => self.docs.alloc(doc),
[INFO] [stdout] 1342 | |          })
[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-0.10.0/src/lib.rs:1317:9
[INFO] [stdout]      |
[INFO] [stdout] 1317 | /         RefDoc(match doc {
[INFO] [stdout] 1318 | |             // Return 'static references for common variants to avoid some allocations
[INFO] [stdout] 1319 | |             Doc::Nil => &Doc::Nil,
[INFO] [stdout] 1320 | |             Doc::Line => &Doc::Line,
[INFO] [stdout] ...    |
[INFO] [stdout] 1334 | |                     RefDoc(&Doc::BorrowedText(" ")),
[INFO] [stdout]      | |                             ---------------------- temporary value created here
[INFO] [stdout] ...    |
[INFO] [stdout] 1341 | |             _ => self.docs.alloc(doc),
[INFO] [stdout] 1342 | |         })
[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-0.10.0/src/lib.rs:1317:9
[INFO] [stdout]      |
[INFO] [stdout] 1317 | /         RefDoc(match doc {
[INFO] [stdout] 1318 | |             // Return 'static references for common variants to avoid some allocations
[INFO] [stdout] 1319 | |             Doc::Nil => &Doc::Nil,
[INFO] [stdout] 1320 | |             Doc::Line => &Doc::Line,
[INFO] [stdout] ...    |
[INFO] [stdout] 1333 | |                     RefDoc(&Doc::Line),
[INFO] [stdout]      | |                             --------- temporary value created here
[INFO] [stdout] ...    |
[INFO] [stdout] 1341 | |             _ => self.docs.alloc(doc),
[INFO] [stdout] 1342 | |         })
[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-0.10.0/src/lib.rs:1317:9
[INFO] [stdout]      |
[INFO] [stdout] 1317 | /         RefDoc(match doc {
[INFO] [stdout] 1318 | |             // Return 'static references for common variants to avoid some allocations
[INFO] [stdout] 1319 | |             Doc::Nil => &Doc::Nil,
[INFO] [stdout] 1320 | |             Doc::Line => &Doc::Line,
[INFO] [stdout] ...    |
[INFO] [stdout] 1339 | |                 &Doc::Group(RefDoc(&Doc::FlatAlt(RefDoc(&Doc::Line), RefDoc(&Doc::Nil))))
[INFO] [stdout]      | |                  ------------------------------------------------------------------------ temporary value created here
[INFO] [stdout] 1340 | |             }
[INFO] [stdout] 1341 | |             _ => self.docs.alloc(doc),
[INFO] [stdout] 1342 | |         })
[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-0.10.0/src/lib.rs:1317:9
[INFO] [stdout]      |
[INFO] [stdout] 1317 | /         RefDoc(match doc {
[INFO] [stdout] 1318 | |             // Return 'static references for common variants to avoid some allocations
[INFO] [stdout] 1319 | |             Doc::Nil => &Doc::Nil,
[INFO] [stdout] 1320 | |             Doc::Line => &Doc::Line,
[INFO] [stdout] ...    |
[INFO] [stdout] 1339 | |                 &Doc::Group(RefDoc(&Doc::FlatAlt(RefDoc(&Doc::Line), RefDoc(&Doc::Nil))))
[INFO] [stdout]      | |                                     --------------------------------------------------- temporary value created here
[INFO] [stdout] 1340 | |             }
[INFO] [stdout] 1341 | |             _ => self.docs.alloc(doc),
[INFO] [stdout] 1342 | |         })
[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-0.10.0/src/lib.rs:1317:9
[INFO] [stdout]      |
[INFO] [stdout] 1317 | /         RefDoc(match doc {
[INFO] [stdout] 1318 | |             // Return 'static references for common variants to avoid some allocations
[INFO] [stdout] 1319 | |             Doc::Nil => &Doc::Nil,
[INFO] [stdout] 1320 | |             Doc::Line => &Doc::Line,
[INFO] [stdout] ...    |
[INFO] [stdout] 1339 | |                 &Doc::Group(RefDoc(&Doc::FlatAlt(RefDoc(&Doc::Line), RefDoc(&Doc::Nil))))
[INFO] [stdout]      | |                                                                              -------- temporary value created here
[INFO] [stdout] 1340 | |             }
[INFO] [stdout] 1341 | |             _ => self.docs.alloc(doc),
[INFO] [stdout] 1342 | |         })
[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-0.10.0/src/lib.rs:1317:9
[INFO] [stdout]      |
[INFO] [stdout] 1317 | /         RefDoc(match doc {
[INFO] [stdout] 1318 | |             // Return 'static references for common variants to avoid some allocations
[INFO] [stdout] 1319 | |             Doc::Nil => &Doc::Nil,
[INFO] [stdout] 1320 | |             Doc::Line => &Doc::Line,
[INFO] [stdout] ...    |
[INFO] [stdout] 1339 | |                 &Doc::Group(RefDoc(&Doc::FlatAlt(RefDoc(&Doc::Line), RefDoc(&Doc::Nil))))
[INFO] [stdout]      | |                                                          --------- temporary value created here
[INFO] [stdout] 1340 | |             }
[INFO] [stdout] 1341 | |             _ => self.docs.alloc(doc),
[INFO] [stdout] 1342 | |         })
[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] running `Command { std: "docker" "inspect" "65a0dc95cd8895c2ba59c2221a981707bc9a30ed66f596df73fcf887d80f0a1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65a0dc95cd8895c2ba59c2221a981707bc9a30ed66f596df73fcf887d80f0a1a", kill_on_drop: false }`
[INFO] [stdout] 65a0dc95cd8895c2ba59c2221a981707bc9a30ed66f596df73fcf887d80f0a1a