[INFO] fetching crate veritas 0.0.0...
[INFO] checking veritas-0.0.0 against master#94b72d6bebbddb5d17860914c4544f37365e988c for pr-122789
[INFO] extracting crate veritas 0.0.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate veritas 0.0.0 on toolchain 94b72d6bebbddb5d17860914c4544f37365e988c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+94b72d6bebbddb5d17860914c4544f37365e988c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate veritas 0.0.0
[INFO] finished tweaking crates.io crate veritas 0.0.0
[INFO] tweaked toml for crates.io crate veritas 0.0.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+94b72d6bebbddb5d17860914c4544f37365e988c" "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" "+94b72d6bebbddb5d17860914c4544f37365e988c" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded format-core v0.2.4
[INFO] [stderr]   Downloaded format-macro v0.2.4
[INFO] [stderr]   Downloaded pretty v0.10.0
[INFO] [stderr]   Downloaded spectrum v0.0.0
[INFO] [stderr]   Downloaded format v0.2.4
[INFO] [stderr]   Downloaded console v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+94b72d6bebbddb5d17860914c4544f37365e988c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b07d899d04df6d343b571d5854c436570a5e12824e244d9fdd93dec8efec774
[INFO] running `Command { std: "docker" "start" "-a" "7b07d899d04df6d343b571d5854c436570a5e12824e244d9fdd93dec8efec774", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b07d899d04df6d343b571d5854c436570a5e12824e244d9fdd93dec8efec774", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b07d899d04df6d343b571d5854c436570a5e12824e244d9fdd93dec8efec774", kill_on_drop: false }`
[INFO] [stdout] 7b07d899d04df6d343b571d5854c436570a5e12824e244d9fdd93dec8efec774
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+94b72d6bebbddb5d17860914c4544f37365e988c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 312be97aee1e0629f4bf69cfc5422f01eaa2b4588d7d2b38c36967d2cf825453
[INFO] running `Command { std: "docker" "start" "-a" "312be97aee1e0629f4bf69cfc5422f01eaa2b4588d7d2b38c36967d2cf825453", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]     Checking typed-arena v2.0.2
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking format-core v0.2.4
[INFO] [stderr]     Checking dissimilar v1.0.7
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking pretty v0.10.0
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking console v0.13.0
[INFO] [stderr]    Compiling format-macro v0.2.4
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]    Compiling getset v0.1.2
[INFO] [stderr]     Checking format v0.2.4
[INFO] [stderr]     Checking spectrum v0.0.0
[INFO] [stderr]     Checking veritas v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `LeafAssertion` is never used
[INFO] [stdout]  --> src/leaf/assertions/traits.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait LeafAssertion {}
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Leaf` is never used
[INFO] [stdout]  --> src/leaf/traits.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Leaf<T> {
[INFO] [stdout]   |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `LeafAssertion` is never used
[INFO] [stdout]  --> src/leaf/assertions/traits.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait LeafAssertion {}
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Leaf` is never used
[INFO] [stdout]  --> src/leaf/traits.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Leaf<T> {
[INFO] [stdout]   |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.84s
[INFO] running `Command { std: "docker" "inspect" "312be97aee1e0629f4bf69cfc5422f01eaa2b4588d7d2b38c36967d2cf825453", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "312be97aee1e0629f4bf69cfc5422f01eaa2b4588d7d2b38c36967d2cf825453", kill_on_drop: false }`
[INFO] [stdout] 312be97aee1e0629f4bf69cfc5422f01eaa2b4588d7d2b38c36967d2cf825453
[INFO] checking veritas-0.0.0 against try#cb4bf0ee9ea9dac86332c9e48c07269c7edc21dc for pr-122789
[INFO] extracting crate veritas 0.0.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate veritas 0.0.0 on toolchain cb4bf0ee9ea9dac86332c9e48c07269c7edc21dc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cb4bf0ee9ea9dac86332c9e48c07269c7edc21dc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate veritas 0.0.0
[INFO] finished tweaking crates.io crate veritas 0.0.0
[INFO] tweaked toml for crates.io crate veritas 0.0.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cb4bf0ee9ea9dac86332c9e48c07269c7edc21dc" "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" "+cb4bf0ee9ea9dac86332c9e48c07269c7edc21dc" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+cb4bf0ee9ea9dac86332c9e48c07269c7edc21dc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6287001cdab8b0ff0f75a40356e71373e3abb1e97a715b739a8e9f6be571f720
[INFO] running `Command { std: "docker" "start" "-a" "6287001cdab8b0ff0f75a40356e71373e3abb1e97a715b739a8e9f6be571f720", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6287001cdab8b0ff0f75a40356e71373e3abb1e97a715b739a8e9f6be571f720", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6287001cdab8b0ff0f75a40356e71373e3abb1e97a715b739a8e9f6be571f720", kill_on_drop: false }`
[INFO] [stdout] 6287001cdab8b0ff0f75a40356e71373e3abb1e97a715b739a8e9f6be571f720
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+cb4bf0ee9ea9dac86332c9e48c07269c7edc21dc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c50f8be7b0c3754941660a0eea9ceb9281559e17403ea3e4a34cc4586014225f
[INFO] running `Command { std: "docker" "start" "-a" "c50f8be7b0c3754941660a0eea9ceb9281559e17403ea3e4a34cc4586014225f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking format-core v0.2.4
[INFO] [stderr]     Checking typed-arena v2.0.2
[INFO] [stderr]     Checking dissimilar v1.0.7
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking terminal_size v0.1.17
[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-6f17d22bba15001f/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-6f17d22bba15001f/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-6f17d22bba15001f/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-6f17d22bba15001f/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-6f17d22bba15001f/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-6f17d22bba15001f/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-6f17d22bba15001f/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-6f17d22bba15001f/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-6f17d22bba15001f/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-6f17d22bba15001f/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-6f17d22bba15001f/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-6f17d22bba15001f/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-6f17d22bba15001f/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-6f17d22bba15001f/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-6f17d22bba15001f/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-6f17d22bba15001f/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-6f17d22bba15001f/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: aborting due to 17 previous errors
[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 18 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c50f8be7b0c3754941660a0eea9ceb9281559e17403ea3e4a34cc4586014225f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c50f8be7b0c3754941660a0eea9ceb9281559e17403ea3e4a34cc4586014225f", kill_on_drop: false }`
[INFO] [stdout] c50f8be7b0c3754941660a0eea9ceb9281559e17403ea3e4a34cc4586014225f